- routing-wg - mailman.ripe.net

Weekly Routing Table Report
by Routing Analysis Role Account 06 May '11

06 May '11

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG, CaribNOG and the RIPE Routing Working Group. Daily listings are sent to bgp-stats(a)lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 07 May, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 356623 Prefixes after maximum aggregation: 161219 Deaggregation factor: 2.21 Unique aggregates announced to Internet: 176188 Total ASes present in the Internet Routing Table: 37501 Prefixes per ASN: 9.51 Origin-only ASes present in the Internet Routing Table: 31368 Origin ASes announcing only one prefix: 15102 Transit ASes present in the Internet Routing Table: 5082 Transit-only ASes present in the Internet Routing Table: 139 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 36 Max AS path prepend of ASN (48687) 24 Prefixes from unregistered ASNs in the Routing Table: 592 Unregistered ASNs in the Routing Table: 299 Number of 32-bit ASNs allocated by the RIRs: 1333 Number of 32-bit ASNs visible in the Routing Table: 1051 Prefixes from 32-bit ASNs in the Routing Table: 2383 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 147 Number of addresses announced to Internet: 2423268544 Equivalent to 144 /8s, 112 /16s and 36 /24s Percentage of available address space announced: 65.4 Percentage of allocated address space announced: 65.4 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 90.7 Total number of prefixes smaller than registry allocations: 148140 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 89329 Total APNIC prefixes after maximum aggregation: 29919 APNIC Deaggregation factor: 2.99 Prefixes being announced from the APNIC address blocks: 85712 Unique aggregates announced from the APNIC address blocks: 36913 APNIC Region origin ASes present in the Internet Routing Table: 4437 APNIC Prefixes per ASN: 19.32 APNIC Region origin ASes announcing only one prefix: 1235 APNIC Region transit ASes present in the Internet Routing Table: 707 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 48 Number of APNIC addresses announced to Internet: 612912416 Equivalent to 36 /8s, 136 /16s and 77 /24s Percentage of available APNIC address space announced: 77.7 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 55296-56319, 131072-132095 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 140234 Total ARIN prefixes after maximum aggregation: 71250 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 112594 Unique aggregates announced from the ARIN address blocks: 45335 ARIN Region origin ASes present in the Internet Routing Table: 14357 ARIN Prefixes per ASN: 7.84 ARIN Region origin ASes announcing only one prefix: 5492 ARIN Region transit ASes present in the Internet Routing Table: 1499 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 12 Number of ARIN addresses announced to Internet: 800024832 Equivalent to 47 /8s, 175 /16s and 105 /24s Percentage of available ARIN address space announced: 63.6 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 393216-394239 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8, 174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 83935 Total RIPE prefixes after maximum aggregation: 48029 RIPE Deaggregation factor: 1.75 Prefixes being announced from the RIPE address blocks: 77374 Unique aggregates announced from the RIPE address blocks: 51246 RIPE Region origin ASes present in the Internet Routing Table: 15569 RIPE Prefixes per ASN: 4.97 RIPE Region origin ASes announcing only one prefix: 7811 RIPE Region transit ASes present in the Internet Routing Table: 2452 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 777 Number of RIPE addresses announced to Internet: 468167936 Equivalent to 27 /8s, 231 /16s and 173 /24s Percentage of available RIPE address space announced: 75.4 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 196608-198655 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 32749 Total LACNIC prefixes after maximum aggregation: 7494 LACNIC Deaggregation factor: 4.37 Prefixes being announced from the LACNIC address blocks: 31794 Unique aggregates announced from the LACNIC address blocks: 16628 LACNIC Region origin ASes present in the Internet Routing Table: 1450 LACNIC Prefixes per ASN: 21.93 LACNIC Region origin ASes announcing only one prefix: 430 LACNIC Region transit ASes present in the Internet Routing Table: 268 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 19 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 209 Number of LACNIC addresses announced to Internet: 83079680 Equivalent to 4 /8s, 243 /16s and 178 /24s Percentage of available LACNIC address space announced: 55.0 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 7778 Total AfriNIC prefixes after maximum aggregation: 1857 AfriNIC Deaggregation factor: 4.19 Prefixes being announced from the AfriNIC address blocks: 6135 Unique aggregates announced from the AfriNIC address blocks: 1917 AfriNIC Region origin ASes present in the Internet Routing Table: 447 AfriNIC Prefixes per ASN: 13.72 AfriNIC Region origin ASes announcing only one prefix: 134 AfriNIC Region transit ASes present in the Internet Routing Table: 97 Average AfriNIC Region AS path length visible: 4.7 Max AfriNIC Region AS path length visible: 24 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5 Number of AfriNIC addresses announced to Internet: 23038208 Equivalent to 1 /8s, 95 /16s and 137 /24s Percentage of available AfriNIC address space announced: 34.3 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 2436 9490 906 Korea Telecom (KIX) 17974 1813 515 29 PT TELEKOMUNIKASI INDONESIA 7545 1565 301 86 TPG Internet Pty Ltd 4755 1461 634 167 TATA Communications formerly 7552 1204 1064 7 Vietel Corporation 24560 1151 336 184 Bharti Airtel Ltd., Telemedia 9583 1057 77 492 Sify Limited 9829 1039 874 51 BSNL National Internet Backbo 4808 1036 2087 294 CNCGROUP IP network: China169 17488 938 164 100 Hathway IP Over Cable Interne Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3644 3822 258 bellsouth.net, inc. 4323 2582 1087 399 Time Warner Telecom 1785 1785 681 127 PaeTec Communications, Inc. 18566 1782 354 219 Covad Communications 6478 1667 313 52 AT&T Worldnet Services 20115 1531 1536 636 Charter Communications 19262 1496 4949 298 Verizon Global Networks 7018 1359 6927 887 AT&T WorldNet Services 22773 1329 2897 87 Cox Communications, Inc. 2386 1265 536 908 AT&T Data Communications Serv Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6830 519 1780 321 UPC Distribution Services 34984 508 106 184 BILISIM TELEKOM 3292 457 1997 391 TDC Tele Danmark 20940 446 131 342 Akamai Technologies European 8866 444 134 26 Bulgarian Telecommunication C 29049 443 33 43 AzerSat LLC. 3320 423 7609 368 Deutsche Telekom AG 12479 419 577 6 Uni2 Autonomous System 8551 406 355 45 Bezeq International 8402 401 320 11 Corbina telecom Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 10620 1458 270 155 TVCABLE BOGOTA 8151 1366 2698 364 UniNet S.A. de C.V. 28573 1298 990 89 NET Servicos de Comunicao S.A 7303 926 467 149 Telecom Argentina Stet-France 6503 801 354 73 AVANTEL, S.A. 14420 665 53 91 CORPORACION NACIONAL DE TELEC 22047 557 310 15 VTR PUNTO NET S.A. 3816 518 226 99 Empresa Nacional de Telecomun 11172 495 84 83 Servicios Alestra S.A de C.V 13489 487 233 116 Orbitel S.A. E.S.P. Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 8452 881 445 11 TEDATA 24863 782 147 37 LINKdotNET AS number 15475 421 90 8 Nile Online 36992 287 331 17 Etisalat MISR 3741 267 985 227 The Internet Solution 6713 240 215 13 Itissalat Al-MAGHRIB 33776 214 12 11 Starcomms Nigeria Limited 24835 209 78 10 RAYA Telecom - Egypt 29571 161 17 11 Ci Telecom Autonomous system 16637 149 441 86 MTN Network Solutions Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3644 3822 258 bellsouth.net, inc. 4323 2582 1087 399 Time Warner Telecom 4766 2436 9490 906 Korea Telecom (KIX) 23456 2383 666 1288 32-bit ASN transition 17974 1813 515 29 PT TELEKOMUNIKASI INDONESIA 1785 1785 681 127 PaeTec Communications, Inc. 18566 1782 354 219 Covad Communications 6478 1667 313 52 AT&T Worldnet Services 7545 1565 301 86 TPG Internet Pty Ltd 20115 1531 1536 636 Charter Communications Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 2582 2183 Time Warner Telecom 17974 1813 1784 PT TELEKOMUNIKASI INDONESIA 1785 1785 1658 PaeTec Communications, Inc. 6478 1667 1615 AT&T Worldnet Services 18566 1782 1563 Covad Communications 4766 2436 1530 Korea Telecom (KIX) 7545 1565 1479 TPG Internet Pty Ltd 10620 1458 1303 TVCABLE BOGOTA 4755 1461 1294 TATA Communications formerly 11492 1262 1247 Cable One Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom 32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic 13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic 23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.225.128.0/18 36377 Comcast Telecommunications, I 24.225.192.0/23 36377 Comcast Telecommunications, I 24.225.192.0/18 36377 Comcast Telecommunications, I 24.225.224.0/21 36377 Comcast Telecommunications, I 24.225.237.0/24 36377 Comcast Telecommunications, I 24.225.248.0/21 36377 Comcast Telecommunications, I 31.210.248.0/21 35706 Net at Once 41.222.79.0/24 36938 >>UNKNOWN<< 41.223.92.0/22 36936 >>UNKNOWN<< 45.127.0.0/16 13767 NetworkTwo Communications Gro Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:20 /9:12 /10:28 /11:78 /12:223 /13:458 /14:790 /15:1389 /16:11689 /17:5747 /18:9693 /19:19273 /20:25574 /21:25731 /22:33992 /23:32787 /24:185889 /25:1096 /26:1273 /27:707 /28:158 /29:8 /30:2 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2245 3644 bellsouth.net, inc. 18566 1744 1782 Covad Communications 6478 1621 1667 AT&T Worldnet Services 10620 1348 1458 TVCABLE BOGOTA 4323 1289 2582 Time Warner Telecom 11492 1211 1262 Cable One 23456 1182 2383 32-bit ASN transition 7011 1062 1162 Citizens Utilities 1785 1054 1785 PaeTec Communications, Inc. 22773 846 1329 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:265 2:61 4:14 5:1 6:3 8:353 12:1992 13:1 14:452 15:15 16:3 17:8 20:10 23:6 24:1627 27:734 31:296 32:63 33:3 34:2 37:1 38:765 40:101 41:2485 42:4 44:3 46:906 47:4 49:172 50:388 52:13 55:4 56:2 57:30 58:843 59:482 60:387 61:1254 62:995 63:1926 64:3927 65:2308 66:4319 67:1873 68:1079 69:2966 70:699 71:346 72:1884 73:1 74:2339 75:299 76:338 77:838 78:688 79:454 80:1079 81:813 82:494 83:446 84:630 85:1076 86:577 87:747 88:323 89:1596 90:192 91:3707 92:511 93:1062 94:1266 95:804 96:482 97:255 98:823 99:35 101:69 103:9 107:6 108:85 109:946 110:583 111:710 112:318 113:399 114:532 115:657 116:949 117:678 118:818 119:1143 120:305 121:672 122:1619 123:1080 124:1254 125:1221 128:259 129:163 130:165 131:564 132:109 133:19 134:217 135:49 136:214 137:143 138:302 139:105 140:480 141:239 142:400 143:398 144:486 145:50 146:436 147:210 148:595 149:243 150:171 151:187 152:310 153:179 154:3 155:396 156:190 157:352 158:130 159:384 160:315 161:205 162:279 163:164 164:498 165:349 166:513 167:426 168:699 169:153 170:784 171:77 172:1 173:1538 174:538 175:373 177:119 178:859 180:818 181:19 182:434 183:208 184:260 185:1 186:1153 187:800 188:847 189:941 190:4853 192:5792 193:4827 194:3466 195:2966 196:1201 197:16 198:3564 199:3921 200:5526 201:1504 202:8357 203:8448 204:4137 205:2327 206:2747 207:3038 208:3960 209:3481 210:2721 211:1372 212:1978 213:1718 214:721 215:64 216:4893 217:1657 218:565 219:371 220:1204 221:484 222:342 223:146 End of report

1 0

IPv6 Routing Recommendations
by Rob Evans 04 May '11

04 May '11

Hi all, Thanks for the feedback on this following the last revision at the end of February. Attached is what the authors hope will be close to a final version that we can start putting through the machinations to become a RIPE document. The changes include: - Dropping mention of AS-PATHLIMIT - Add mention of NOPEER - Recommending that routes are registered in an IRR or have a ROA. We are only briefly going to discuss this in the WG session this afternoon. Best regards, Rob

1 0

LISP Bar BOF today 17:30 @ Beatrix lounge
by Job Snijders 03 May '11

03 May '11

Dear All, Cisco and InTouch are hosting a LISP Bar BOF, in the Beatrix Lounge of the Krasnapolsky. Darrel Lewis (Cisco) and myself will be present to answer any questions in regard to the Locator/ID Separation Protocol. We'll kick off at 17:30 and close shop at 19:30. So you'll have plenty of time to get to the social event afterwards :-) General website: http://www.lisp4.net/ LISP IETF WG: https://datatracker.ietf.org/wg/lisp/charter/ You can find the Beatrix Lounge in the lobby near the front entrace. Please RSVP to me if you plan on dropping by. Kind regards, Job Snijders

1 0

The Cidr Report
by cidr-report＠potaroo.net 30 Apr '11

30 Apr '11

This report has been generated at Fri Apr 29 21:12:19 2011 AEST. The report analyses the BGP Routing Table of AS2.0 router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org for a current version of this report. Recent Table History Date Prefixes CIDR Agg 22-04-11 358888 210678 23-04-11 359100 210025 24-04-11 359043 210099 25-04-11 359109 210322 26-04-11 359153 210508 27-04-11 359331 210252 28-04-11 359218 210513 29-04-11 359398 210638 AS Summary 37536 Number of ASes in routing system 15812 Number of ASes announcing only one prefix 3646 Largest number of prefixes announced by an AS AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc. 110422528 Largest address span announced by an AS (/32s) AS4134 : CHINANET-BACKBONE No.31,Jin-rong Street Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 29Apr11 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 359485 210619 148866 41.4% All ASes AS6389 3646 261 3385 92.8% BELLSOUTH-NET-BLK - BellSouth.net Inc. AS4323 2622 401 2221 84.7% TWTC - tw telecom holdings, inc. AS4766 2434 915 1519 62.4% KIXS-AS-KR Korea Telecom AS6478 1658 175 1483 89.4% ATT-INTERNET3 - AT&T Services, Inc. AS10620 1448 231 1217 84.0% Telmex Colombia S.A. AS22773 1300 93 1207 92.8% ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. AS19262 1495 298 1197 80.1% VZGNI-TRANSIT - Verizon Online LLC AS18566 1790 663 1127 63.0% COVAD - Covad Communications Co. AS4755 1459 376 1083 74.2% TATACOMM-AS TATA Communications formerly VSNL is Leading ISP AS7552 1215 142 1073 88.3% VIETEL-AS-AP Vietel Corporation AS1785 1794 764 1030 57.4% AS-PAETEC-NET - PaeTec Communications, Inc. AS28573 1289 416 873 67.7% NET Servicos de Comunicao S.A. AS24560 1158 339 819 70.7% AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services AS7545 1561 764 797 51.1% TPG-INTERNET-AP TPG Internet Pty Ltd AS18101 935 145 790 84.5% RELIANCE-COMMUNICATIONS-IN Reliance Communications Ltd.DAKC MUMBAI AS8151 1248 524 724 58.0% Uninet S.A. de C.V. AS4808 1038 333 705 67.9% CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network AS3356 1128 462 666 59.0% LEVEL3 Level 3 Communications AS7303 927 264 663 71.5% Telecom Argentina S.A. AS17488 944 312 632 66.9% HATHWAY-NET-AP Hathway IP Over Cable Internet AS11492 1261 636 625 49.6% CABLEONE - CABLE ONE, INC. AS17676 660 70 590 89.4% GIGAINFRA Softbank BB Corp. AS855 635 57 578 91.0% CANET-ASN-4 - Bell Aliant Regional Communications, Inc. AS6503 853 277 576 67.5% Axtel, S.A.B. de C.V. AS14420 665 104 561 84.4% CORPORACION NACIONAL DE TELECOMUNICACIONES - CNT EP AS3549 948 400 548 57.8% GBLX Global Crossing Ltd. AS22047 564 30 534 94.7% VTR BANDA ANCHA S.A. AS4780 718 188 530 73.8% SEEDNET Digital United Inc. AS22561 863 341 522 60.5% DIGITAL-TELEPORT - Digital Teleport Inc. AS17974 1826 1329 497 27.2% TELKOMNET-AS2-AP PT Telekomunikasi Indonesia Total 40082 11310 28772 71.8% Top 30 total Possible Bogus Routes 10.86.64.32/30 AS65530 -Private Use AS- 10.86.64.36/30 AS65530 -Private Use AS- 10.86.65.32/30 AS65530 -Private Use AS- 10.86.65.36/30 AS65530 -Private Use AS- 10.255.255.0/30 AS65530 -Private Use AS- 10.255.255.4/30 AS65530 -Private Use AS- 10.255.255.8/30 AS65530 -Private Use AS- 24.48.0.0/14 AS5769 VIDEOTRON - Videotron Telecom Ltee 24.225.128.0/18 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.192.0/18 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.192.0/23 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.224.0/21 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.237.0/24 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.248.0/21 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 31.200.248.0/21 AS45005 GORIZONT-YAROSLAVL-AS Gorizont LTD 31.204.128.0/19 AS49544 INTERACTIVE3D-AS Interactive3D 31.205.0.0/16 AS41230 ASK4 Ask4 Limited 41.222.79.0/24 AS36938 AMSCOTELECOMS Amsco Telecommunications Nigeria Limited 41.223.92.0/22 AS36936 CELTEL-GABON Celtel Gabon Internet Service 45.127.0.0/16 AS13767 DBANK - DataBank Holdings, Ltd. 62.61.220.0/24 AS24974 TACHYON-EU Tachyon Europe BV 62.61.221.0/24 AS24974 TACHYON-EU Tachyon Europe BV 64.21.192.0/20 AS11610 INETNEBR-1 - Internet Nebraska Corporation 64.21.212.0/22 AS11610 INETNEBR-1 - Internet Nebraska Corporation 64.21.216.0/21 AS11610 INETNEBR-1 - Internet Nebraska Corporation 66.171.32.0/20 AS16626 GNAXNET-AS - Global Net Access, LLC 66.180.239.0/24 AS35888 VIGNETTE - VIGNETTE CORPORATION 66.206.47.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 66.207.32.0/20 AS23011 66.245.176.0/20 AS19318 NJIIX-AS-1 - NEW JERSEY INTERNATIONAL INTERNET EXCHANGE LLC 69.6.80.0/24 AS13442 69.6.81.0/24 AS13442 71.19.134.0/23 AS3313 INET-AS BT Italia S.p.A. 72.22.32.0/19 AS33150 76.77.32.0/19 AS2828 XO-AS15 - XO Communications 80.88.10.0/24 AS33774 DJAWEB 80.88.12.0/24 AS33779 wataniya-telecom-as 110.34.44.0/22 AS12653 COMTONET KB Impuls Hellas 115.42.28.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.40.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.42.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.44.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.47.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.48.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.49.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.50.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.51.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.52.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.53.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.54.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.55.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.56.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.57.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.58.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.59.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.61.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.62.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.63.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 117.120.56.0/21 AS4755 TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 121.46.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 142.54.0.0/19 AS23498 CDSI - Cogeco Data Services Inc. 158.222.70.0/23 AS6137 SISNA - SISNA, Inc. 158.222.72.0/23 AS6137 SISNA - SISNA, Inc. 158.222.224.0/20 AS19864 O1COMM - O1 COMMUNICATIONS 158.222.224.0/22 AS19864 O1COMM - O1 COMMUNICATIONS 158.222.229.0/24 AS19864 O1COMM - O1 COMMUNICATIONS 172.102.0.0/22 AS4812 CHINANET-SH-AP China Telecom (Group) 181.82.15.0/24 AS23982 SENDB-AS-KR Dongbu District Office of Education in Seoul 181.82.16.0/24 AS23982 SENDB-AS-KR Dongbu District Office of Education in Seoul 181.82.17.0/24 AS38418 SENSD-AS-KR seoul seondong district office of education 181.82.18.0/24 AS38418 SENSD-AS-KR seoul seondong district office of education 190.102.32.0/20 AS30058 FDCSERVERS - FDCservers.net 190.104.32.0/21 AS27882 Telefónica Celular de Bolivia S.A. 192.9.0.0/16 AS11479 BRM-SUN-AS - Sun Microsystems, Inc 192.64.85.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.69.108.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.101.46.0/24 AS6503 Axtel, S.A.B. de C.V. 192.101.64.0/21 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe 192.101.70.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 192.101.71.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 192.101.72.0/24 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.131.233.0/24 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 192.145.251.0/24 AS10026 PACNET Pacnet Global Ltd 192.154.32.0/19 AS81 NCREN - MCNC 192.154.64.0/19 AS81 NCREN - MCNC 192.188.208.0/20 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 196.2.224.0/22 AS24863 LINKdotNET-AS 196.6.108.0/24 AS5713 SAIX-NET 196.13.201.0/24 AS2018 TENET-1 196.13.202.0/24 AS2018 TENET-1 196.13.203.0/24 AS2018 TENET-1 196.13.204.0/24 AS2018 TENET-1 196.110.105.0/24 AS8513 SKYVISION SkyVision Network Services 196.202.224.0/21 AS8818 TELE Greenland Autonomous System 198.1.2.0/24 AS4761 INDOSAT-INP-AP INDOSAT Internet Network Provider 198.15.4.0/24 AS4323 TWTC - tw telecom holdings, inc. 198.15.5.0/24 AS4323 TWTC - tw telecom holdings, inc. 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.73.210.0/24 AS21570 ACI-1 - Accelerated Connections Inc. 198.74.38.0/24 AS16966 SBCIDC-LSAN03 - AT&T Internet Services 198.74.39.0/24 AS16966 SBCIDC-LSAN03 - AT&T Internet Services 198.74.40.0/24 AS16966 SBCIDC-LSAN03 - AT&T Internet Services 198.97.72.0/21 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 198.97.96.0/19 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 198.97.240.0/20 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 198.99.241.0/24 AS11797 AC-NIELSEN-AS AC NIELSEN 198.161.87.0/24 AS6539 GT-BELL - Bell Canada 198.163.214.0/24 AS21804 ACCESS-SK - Access Communications Co-operative Limited 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.168.0.0/16 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 198.175.231.0/24 AS19262 VZGNI-TRANSIT - Verizon Online LLC 198.180.198.0/24 AS23715 SEOUL-INTGW-GXS-AP Global Exchange Services 198.182.235.0/24 AS3356 LEVEL3 Level 3 Communications 199.16.32.0/19 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 199.33.84.0/22 AS9911 CONNECTPLUS-AP Singapore Telecom 199.121.0.0/16 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 199.123.16.0/20 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 199.185.130.0/23 AS19662 UNISERVE-ONLINE - Uniserve On Line 199.202.0.0/16 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 199.202.216.0/21 AS577 BACOM - Bell Canada 199.246.116.0/24 AS813 UUNET-CANADA - MCI Communications Services, Inc. d/b/a Verizon Business 200.1.112.0/24 AS29754 GO2TEL GO2TEL.COM INC. 200.24.73.0/24 AS26061 Equant Colombia 200.24.76.0/24 AS7195 Telecorp Colombia S.A. 200.24.78.0/26 AS3549 GBLX Global Crossing Ltd. 200.24.78.64/26 AS3549 GBLX Global Crossing Ltd. 202.1.224.0/24 AS10097 FLOWCOM Flow Communications 2/541 Kent St Sydney NSW 2000 202.9.55.0/24 AS2764 AAPT AAPT Limited 202.9.57.0/24 AS2764 AAPT AAPT Limited 202.58.113.0/24 AS19161 202.61.75.0/24 AS9927 PHILCOMNET-PH A Multihomed ISP Company 202.66.160.0/20 AS9584 GENESIS-AP Diyixian.com Limited 202.66.176.0/20 AS9584 GENESIS-AP Diyixian.com Limited 202.74.232.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.74.233.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.83.120.0/21 AS37972 202.83.124.0/24 AS37972 202.83.125.0/24 AS37972 202.83.126.0/24 AS37972 202.94.1.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.133.70.0/24 AS38616 WORLDCALL-AS-KHI Worldcall Telecom Limited 202.133.73.0/24 AS38616 WORLDCALL-AS-KHI Worldcall Telecom Limited 202.146.186.0/24 AS23655 SNAP-NZ-AS Snap Internet Limited 202.174.125.0/24 AS9498 BBIL-AP BHARTI Airtel Ltd. 202.176.1.0/24 AS9942 COMINDICO-AP SOUL Converged Communications Australia 202.179.131.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.179.134.0/24 AS23966 LDN-AS-PK LINKdotNET Telecom Limited 202.179.144.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 203.18.156.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 203.23.1.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.24.38.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.30.127.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.86.0/23 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.86.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.87.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.188.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 203.142.219.0/24 AS45149 203.175.107.0/24 AS45595 PKTELECOM-AS-PK Pakistan Telecom Company Limited 203.190.32.0/22 AS24564 204.9.216.0/23 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 204.10.232.0/21 AS33150 204.19.14.0/23 AS577 BACOM - Bell Canada 205.150.0.0/15 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 205.175.214.0/24 AS5583 ORANGE-BUSINESS-SERVICES-BENELUX Orange Business Services (formerly Equant) AS for BENELUX 205.189.134.0/24 AS11814 DISTRIBUTEL-AS11814 - DISTRIBUTEL COMMUNICATIONS LTD. 205.207.148.0/23 AS812 ROGERS-CABLE - Rogers Cable Communications Inc. 206.72.192.0/23 AS16526 BIRCH-TELECOM - Birch Telecom, Inc. 206.72.194.0/23 AS16526 BIRCH-TELECOM - Birch Telecom, Inc. 206.123.129.0/24 AS10790 INREACH-AS - InReach Internet 206.180.240.0/20 AS12083 KNOLOGY-NET - Knology Holdings 206.197.184.0/24 AS23304 DATOTEL-STL-AS - Datotel LLC, a NetLabs LLC Company 207.174.131.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.132.0/23 AS26116 INDRA - Indra's Net Inc. 207.174.152.0/23 AS26116 INDRA - Indra's Net Inc. 207.174.154.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.155.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.188.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.189.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.190.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.191.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.200.0/24 AS22658 EARTHNET - Earthnet, Inc. 207.174.248.0/21 AS6653 PRIVATEI - privateI, LLC 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc. 208.64.240.0/21 AS13871 TELEBYTE-NW - Telebyte NW 208.78.165.0/24 AS16565 208.83.53.0/24 AS40569 YGOMI-AS - Ygomi LLC 208.92.196.0/22 AS10929 NETELLIGENT - Netelligent Hosting Services Inc. 208.92.199.0/24 AS26198 3MENATWORK - 3Men@Work Integrated Networks, Inc. 209.54.123.0/24 AS6062 NETPLEX - NETPLEX 209.148.64.0/19 AS13773 TELNETCOMM - Telnet Communications 209.165.239.0/24 AS209 ASN-QWEST - Qwest Communications Company, LLC 209.177.64.0/20 AS6461 MFNX MFN - Metromedia Fiber Network 209.213.0.0/20 AS33005 ELTOPIA - Eltopia.com, LLC 209.213.1.0/24 AS7849 CROCKERCOM - CROCKER COMMUNICATIONS 209.213.4.0/24 AS7849 CROCKERCOM - CROCKER COMMUNICATIONS 210.5.128.0/20 AS4837 CHINA169-BACKBONE CNCGROUP China169 Backbone 210.56.150.0/23 AS38138 INTECH-TRANSIT-BD InTech Online Limited, INTERNET SERVICE LIMITED 216.10.235.0/24 AS13780 NTNCOMMUNICATIONS - NTN 216.10.236.0/24 AS13780 NTNCOMMUNICATIONS - NTN 216.21.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport 216.21.196.0/24 AS12251 INVISION - Invision.com, Inc. 216.21.201.0/24 AS12251 INVISION - Invision.com, Inc. 216.21.202.0/24 AS12251 INVISION - Invision.com, Inc. 216.21.206.0/23 AS12251 INVISION - Invision.com, Inc. 216.58.192.0/24 AS22702 X5SOLUTIONS - X5 Solutions, Inc. 216.58.197.0/24 AS22702 X5SOLUTIONS - X5 Solutions, Inc. 216.58.200.0/24 AS18530 ISOMEDIA-1 - Isomedia Inc. 216.105.192.0/23 AS7385 INTEGRATELECOM - Integra Telecom, Inc. 216.105.196.0/23 AS7385 INTEGRATELECOM - Integra Telecom, Inc. 216.105.200.0/21 AS7385 INTEGRATELECOM - Integra Telecom, Inc. 216.172.198.0/24 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. 216.172.199.0/24 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. 216.194.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)nanog.org eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org

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BGP Update Report
by cidr-report＠potaroo.net 30 Apr '11

30 Apr '11

BGP Update Report Interval: 21-Apr-11 -to- 28-Apr-11 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS19743 32039 1.6% 4577.0 -- 2 - AS9829 21443 1.1% 21.3 -- BSNL-NIB National Internet Backbone 3 - AS17974 18475 0.9% 10.1 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 4 - AS27738 17261 0.9% 50.9 -- Ecuadortelecom S.A. 5 - AS32528 17148 0.9% 2143.5 -- ABBOTT Abbot Labs 6 - AS11492 16263 0.8% 12.8 -- CABLEONE - CABLE ONE, INC. 7 - AS7633 15307 0.8% 75.4 -- SOFTNET-AS-AP Software Technology Parks of India - Bangalore 8 - AS44609 12851 0.7% 4283.7 -- FNA Fars News Agency Cultural Arts Institute 9 - AS11992 12773 0.7% 28.8 -- CENTENNIAL-PR - Centennial de Puerto Rico 10 - AS6389 12491 0.6% 3.4 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 11 - AS14420 12464 0.6% 18.7 -- CORPORACION NACIONAL DE TELECOMUNICACIONES - CNT EP 12 - AS9498 12311 0.6% 15.3 -- BBIL-AP BHARTI Airtel Ltd. 13 - AS7552 12111 0.6% 9.8 -- VIETEL-AS-AP Vietel Corporation 14 - AS35931 12078 0.6% 2013.0 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 15 - AS45595 10417 0.5% 28.8 -- PKTELECOM-AS-PK Pakistan Telecom Company Limited 16 - AS7545 10168 0.5% 11.6 -- TPG-INTERNET-AP TPG Internet Pty Ltd 17 - AS4323 9856 0.5% 3.7 -- TWTC - tw telecom holdings, inc. 18 - AS28573 9549 0.5% 7.3 -- NET Servicos de Comunicao S.A. 19 - AS5800 9478 0.5% 50.7 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 20 - AS24560 9088 0.5% 7.8 -- AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS19743 32039 1.6% 4577.0 -- 2 - AS44609 12851 0.7% 4283.7 -- FNA Fars News Agency Cultural Arts Institute 3 - AS32528 17148 0.9% 2143.5 -- ABBOTT Abbot Labs 4 - AS35931 12078 0.6% 2013.0 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 5 - AS49600 1355 0.1% 1355.0 -- LASEDA La Seda de Barcelona, S.A 6 - AS9270 2989 0.1% 597.8 -- APAN-KR-AS Asia Pacific Advanced Network Korea(APAN-KR) Consortium 7 - AS23364 597 0.0% 597.0 -- SECOTOOLS-US - Seco Tools Inc. 8 - AS12732 2169 0.1% 542.2 -- GUTCON-NET GutCon GmbH 9 - AS3 385 0.0% 735.0 -- NETCKRACKER-AS NETCKRACKER Ltd 10 - AS18704 3755 0.2% 375.5 -- T-SYSTEM - T-SYSTEMS INC. 11 - AS5966 375 0.0% 375.0 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 12 - AS23310 697 0.0% 348.5 -- TASTYLIME - TASTY LIME 13 - AS48349 306 0.0% 306.0 -- SICE-IT-AS JSC "Siberian Interbank Currency Exchange - Information Technologies" 14 - AS24801 902 0.1% 300.7 -- monarch 15 - AS722 2675 0.1% 297.2 -- DNIC-ASBLK-00721-00726 - DoD Network Information Center 16 - AS9476 294 0.0% 294.0 -- INTRAPOWER-AS-AP IntraPower Pty. Ltd. 17 - AS38757 512 0.0% 256.0 -- ICONPLN-ID-AP PT. Indonesia Comnets Plus 18 - AS50324 250 0.0% 250.0 -- ORCO-GSG GSG Asset GmbH & Co. Verwaltungs KG 19 - AS56453 245 0.0% 245.0 -- SMA Panajotis Tolatzis trading as "Secure Media Associates" 20 - AS33362 2929 0.1% 244.1 -- WIKTEL-NET - Wikstrom Telephone Company, Incorporated TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 130.36.35.0/24 8563 0.4% AS32528 -- ABBOTT Abbot Labs 2 - 130.36.34.0/24 8560 0.4% AS32528 -- ABBOTT Abbot Labs 3 - 202.92.235.0/24 8006 0.3% AS9498 -- BBIL-AP BHARTI Airtel Ltd. 4 - 63.211.68.0/22 7021 0.3% AS35931 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 5 - 203.190.151.0/24 6980 0.3% AS7633 -- SOFTNET-AS-AP Software Technology Parks of India - Bangalore 6 - 203.129.236.0/24 6478 0.3% AS7633 -- SOFTNET-AS-AP Software Technology Parks of India - Bangalore 7 - 178.22.79.0/24 6431 0.3% AS44609 -- FNA Fars News Agency Cultural Arts Institute 8 - 178.22.72.0/21 6403 0.3% AS44609 -- FNA Fars News Agency Cultural Arts Institute 9 - 65.122.196.0/24 6331 0.3% AS19743 -- 10 - 221.121.96.0/19 6041 0.3% AS7491 -- PI-PH-AS-AP PI-PHILIPINES 11 - 65.162.204.0/24 5143 0.2% AS19743 -- 12 - 65.163.182.0/24 5143 0.2% AS19743 -- 13 - 66.238.91.0/24 5142 0.2% AS19743 -- 14 - 66.89.98.0/24 5141 0.2% AS19743 -- 15 - 72.164.144.0/24 5137 0.2% AS19743 -- 16 - 208.54.82.0/24 4891 0.2% AS701 -- UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 17 - 198.140.43.0/24 4864 0.2% AS35931 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 18 - 68.65.152.0/22 3763 0.2% AS11915 -- TELWEST-NETWORK-SVCS-STATIC - TEL WEST COMMUNICATIONS LLC 19 - 64.43.0.0/16 3727 0.2% AS18704 -- T-SYSTEM - T-SYSTEMS INC. 20 - 202.153.174.0/24 3626 0.2% AS17408 -- ABOVE-AS-AP AboveNet Communications Taiwan Details at http://bgpupdates.potaroo.net ------------------------------------ Copies of this report are mailed to: nanog(a)nanog.org eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org

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Weekly Routing Table Report
by Routing Analysis Role Account 29 Apr '11

29 Apr '11

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG, CaribNOG and the RIPE Routing Working Group. Daily listings are sent to bgp-stats(a)lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 30 Apr, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 356141 Prefixes after maximum aggregation: 161025 Deaggregation factor: 2.21 Unique aggregates announced to Internet: 175803 Total ASes present in the Internet Routing Table: 37438 Prefixes per ASN: 9.51 Origin-only ASes present in the Internet Routing Table: 31355 Origin ASes announcing only one prefix: 15082 Transit ASes present in the Internet Routing Table: 5058 Transit-only ASes present in the Internet Routing Table: 135 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 36 Max AS path prepend of ASN (36992) 29 Prefixes from unregistered ASNs in the Routing Table: 584 Unregistered ASNs in the Routing Table: 291 Number of 32-bit ASNs allocated by the RIRs: 1317 Number of 32-bit ASNs visible in the Routing Table: 1025 Prefixes from 32-bit ASNs in the Routing Table: 2298 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 148 Number of addresses announced to Internet: 2420666304 Equivalent to 144 /8s, 72 /16s and 111 /24s Percentage of available address space announced: 65.3 Percentage of allocated address space announced: 65.3 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 90.6 Total number of prefixes smaller than registry allocations: 147936 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 89082 Total APNIC prefixes after maximum aggregation: 29925 APNIC Deaggregation factor: 2.98 Prefixes being announced from the APNIC address blocks: 85522 Unique aggregates announced from the APNIC address blocks: 36919 APNIC Region origin ASes present in the Internet Routing Table: 4425 APNIC Prefixes per ASN: 19.33 APNIC Region origin ASes announcing only one prefix: 1232 APNIC Region transit ASes present in the Internet Routing Table: 703 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 48 Number of APNIC addresses announced to Internet: 611294496 Equivalent to 36 /8s, 111 /16s and 157 /24s Percentage of available APNIC address space announced: 77.5 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 55296-56319, 131072-132095 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 140235 Total ARIN prefixes after maximum aggregation: 71231 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 112584 Unique aggregates announced from the ARIN address blocks: 45236 ARIN Region origin ASes present in the Internet Routing Table: 14345 ARIN Prefixes per ASN: 7.85 ARIN Region origin ASes announcing only one prefix: 5478 ARIN Region transit ASes present in the Internet Routing Table: 1492 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 11 Number of ARIN addresses announced to Internet: 799837952 Equivalent to 47 /8s, 172 /16s and 143 /24s Percentage of available ARIN address space announced: 63.6 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 393216-394239 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8, 174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 84054 Total RIPE prefixes after maximum aggregation: 47941 RIPE Deaggregation factor: 1.75 Prefixes being announced from the RIPE address blocks: 77228 Unique aggregates announced from the RIPE address blocks: 51126 RIPE Region origin ASes present in the Internet Routing Table: 15564 RIPE Prefixes per ASN: 4.96 RIPE Region origin ASes announcing only one prefix: 7810 RIPE Region transit ASes present in the Internet Routing Table: 2440 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 760 Number of RIPE addresses announced to Internet: 467574528 Equivalent to 27 /8s, 222 /16s and 159 /24s Percentage of available RIPE address space announced: 75.3 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 196608-198655 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 32502 Total LACNIC prefixes after maximum aggregation: 7466 LACNIC Deaggregation factor: 4.35 Prefixes being announced from the LACNIC address blocks: 31515 Unique aggregates announced from the LACNIC address blocks: 16536 LACNIC Region origin ASes present in the Internet Routing Table: 1442 LACNIC Prefixes per ASN: 21.86 LACNIC Region origin ASes announcing only one prefix: 427 LACNIC Region transit ASes present in the Internet Routing Table: 261 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 19 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 201 Number of LACNIC addresses announced to Internet: 82907136 Equivalent to 4 /8s, 241 /16s and 16 /24s Percentage of available LACNIC address space announced: 54.9 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 7748 Total AfriNIC prefixes after maximum aggregation: 1855 AfriNIC Deaggregation factor: 4.18 Prefixes being announced from the AfriNIC address blocks: 6108 Unique aggregates announced from the AfriNIC address blocks: 1916 AfriNIC Region origin ASes present in the Internet Routing Table: 449 AfriNIC Prefixes per ASN: 13.60 AfriNIC Region origin ASes announcing only one prefix: 135 AfriNIC Region transit ASes present in the Internet Routing Table: 97 Average AfriNIC Region AS path length visible: 4.7 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5 Number of AfriNIC addresses announced to Internet: 23373568 Equivalent to 1 /8s, 100 /16s and 167 /24s Percentage of available AfriNIC address space announced: 34.8 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 2434 9482 904 Korea Telecom (KIX) 17974 1827 515 29 PT TELEKOMUNIKASI INDONESIA 7545 1558 301 84 TPG Internet Pty Ltd 4755 1459 634 167 TATA Communications formerly 7552 1214 1064 7 Vietel Corporation 24560 1158 336 190 Bharti Airtel Ltd., Telemedia 9583 1056 77 492 Sify Limited 4808 1035 2090 294 CNCGROUP IP network: China169 9829 1007 870 50 BSNL National Internet Backbo 17488 944 165 100 Hathway IP Over Cable Interne Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3644 3822 254 bellsouth.net, inc. 4323 2630 1086 397 Time Warner Telecom 1785 1791 681 128 PaeTec Communications, Inc. 18566 1790 349 229 Covad Communications 6478 1658 311 46 AT&T Worldnet Services 20115 1534 1552 641 Charter Communications 19262 1495 4949 298 Verizon Global Networks 7018 1343 6782 886 AT&T WorldNet Services 22773 1300 2865 84 Cox Communications, Inc. 2386 1268 536 911 AT&T Data Communications Serv Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6830 520 1780 322 UPC Distribution Services 34984 509 106 182 BILISIM TELEKOM 3292 457 1997 391 TDC Tele Danmark 29049 450 33 48 AzerSat LLC. 8866 446 134 26 Bulgarian Telecommunication C 20940 442 129 338 Akamai Technologies European 3320 423 7609 368 Deutsche Telekom AG 12479 408 577 6 Uni2 Autonomous System 8551 405 354 47 Bezeq International 702 396 1802 309 UUNET - Commercial IP service Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 10620 1448 268 160 TVCABLE BOGOTA 28573 1289 988 87 NET Servicos de Comunicao S.A 8151 1251 2690 369 UniNet S.A. de C.V. 7303 926 467 149 Telecom Argentina Stet-France 6503 852 354 73 AVANTEL, S.A. 14420 665 53 91 CORPORACION NACIONAL DE TELEC 22047 564 310 15 VTR PUNTO NET S.A. 3816 517 226 98 Empresa Nacional de Telecomun 11172 489 99 82 Servicios Alestra S.A de C.V 13489 484 221 116 Orbitel S.A. E.S.P. Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 8452 881 445 11 TEDATA 24863 779 147 39 LINKdotNET AS number 15475 421 90 8 Nile Online 36992 299 415 13 Etisalat MISR 3741 267 985 227 The Internet Solution 6713 240 215 13 Itissalat Al-MAGHRIB 24835 211 78 10 RAYA Telecom - Egypt 33776 208 12 10 Starcomms Nigeria Limited 29571 161 17 11 Ci Telecom Autonomous system 16637 149 441 86 MTN Network Solutions Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3644 3822 254 bellsouth.net, inc. 4323 2630 1086 397 Time Warner Telecom 4766 2434 9482 904 Korea Telecom (KIX) 23456 2298 658 1255 32-bit ASN transition 17974 1827 515 29 PT TELEKOMUNIKASI INDONESIA 1785 1791 681 128 PaeTec Communications, Inc. 18566 1790 349 229 Covad Communications 6478 1658 311 46 AT&T Worldnet Services 7545 1558 301 84 TPG Internet Pty Ltd 20115 1534 1552 641 Charter Communications Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 2630 2233 Time Warner Telecom 17974 1827 1798 PT TELEKOMUNIKASI INDONESIA 1785 1791 1663 PaeTec Communications, Inc. 6478 1658 1612 AT&T Worldnet Services 18566 1790 1561 Covad Communications 4766 2434 1530 Korea Telecom (KIX) 7545 1558 1474 TPG Internet Pty Ltd 4755 1459 1292 TATA Communications formerly 10620 1448 1288 TVCABLE BOGOTA 11492 1261 1246 Cable One Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic 13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.225.128.0/18 36377 Comcast Telecommunications, I 24.225.192.0/23 36377 Comcast Telecommunications, I 24.225.192.0/18 36377 Comcast Telecommunications, I 24.225.224.0/21 36377 Comcast Telecommunications, I 24.225.237.0/24 36377 Comcast Telecommunications, I 24.225.248.0/21 36377 Comcast Telecommunications, I 41.222.79.0/24 36938 >>UNKNOWN<< 41.223.92.0/22 36936 >>UNKNOWN<< 45.127.0.0/16 13767 NetworkTwo Communications Gro 62.61.220.0/24 24974 Tachyon Europe BV - Wireless Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:20 /9:12 /10:28 /11:77 /12:221 /13:459 /14:790 /15:1386 /16:11667 /17:5753 /18:9651 /19:19182 /20:25623 /21:25636 /22:33862 /23:32708 /24:185857 /25:1132 /26:1317 /27:705 /28:39 /29:8 /30:2 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2245 3644 bellsouth.net, inc. 18566 1758 1790 Covad Communications 6478 1612 1658 AT&T Worldnet Services 10620 1338 1448 TVCABLE BOGOTA 4323 1332 2630 Time Warner Telecom 11492 1210 1261 Cable One 23456 1151 2298 32-bit ASN transition 7011 1062 1161 Citizens Utilities 1785 1059 1791 PaeTec Communications, Inc. 22773 844 1300 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:264 2:51 4:14 5:1 6:3 8:351 12:1987 13:1 14:443 15:15 16:3 17:8 20:9 23:5 24:1613 27:720 31:233 32:60 33:3 34:2 37:1 38:765 40:101 41:2441 42:5 44:3 46:885 47:4 49:171 50:375 52:13 55:5 56:2 57:31 58:840 59:481 60:387 61:1266 62:981 63:1932 64:3956 65:2322 66:4374 67:1868 68:1077 69:2971 70:704 71:346 72:1893 73:1 74:2360 75:298 76:334 77:836 78:678 79:454 80:1092 81:814 82:496 83:461 84:650 85:1080 86:566 87:748 88:322 89:1597 90:183 91:3714 92:512 93:1059 94:1263 95:796 96:478 97:253 98:823 99:35 101:68 103:5 106:1 107:6 108:83 109:941 110:561 111:699 112:320 113:397 114:530 115:685 116:952 117:681 118:809 119:1139 120:306 121:671 122:1623 123:1075 124:1255 125:1220 128:264 129:163 130:172 131:568 132:112 133:19 134:217 135:49 136:214 137:141 138:302 139:106 140:479 141:174 142:400 143:403 144:487 145:52 146:441 147:208 148:591 149:243 150:171 151:187 152:309 153:179 154:3 155:396 156:190 157:353 158:133 159:384 160:314 161:247 162:277 163:164 164:494 165:351 166:511 167:426 168:721 169:153 170:788 171:76 172:1 173:1511 174:535 175:361 177:81 178:851 180:817 181:15 182:436 183:204 184:258 185:1 186:1137 187:810 188:988 189:969 190:4836 192:5789 193:4844 194:3470 195:2974 196:1204 197:16 198:3570 199:3910 200:5522 201:1499 202:8374 203:8448 204:4138 205:2325 206:2749 207:3030 208:3952 209:3472 210:2729 211:1386 212:1968 213:1686 214:736 215:67 216:4879 217:1651 218:563 219:374 220:1202 221:484 222:342 223:145 End of report

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BGP Update Report
by cidr-report＠potaroo.net 23 Apr '11

23 Apr '11

BGP Update Report Interval: 14-Apr-11 -to- 21-Apr-11 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS19743 31254 1.4% 4464.9 -- 2 - AS9829 20367 0.9% 20.2 -- BSNL-NIB National Internet Backbone 3 - AS17974 19362 0.9% 10.6 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 4 - AS11492 19099 0.9% 15.0 -- CABLEONE - CABLE ONE, INC. 5 - AS16586 17967 0.8% 58.0 -- CLEARWIRE - Clearwire US LLC 6 - AS32528 17918 0.8% 2239.8 -- ABBOTT Abbot Labs 7 - AS6389 15224 0.7% 4.2 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 8 - AS35931 13544 0.6% 2257.3 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 9 - AS44609 12775 0.6% 4258.3 -- FNA Fars News Agency Cultural Arts Institute 10 - AS8452 12329 0.6% 14.6 -- TE-AS TE-AS 11 - AS14420 12223 0.6% 18.4 -- CORPORACION NACIONAL DE TELECOMUNICACIONES - CNT EP 12 - AS45595 11814 0.6% 32.5 -- PKTELECOM-AS-PK Pakistan Telecom Company Limited 13 - AS20115 11671 0.5% 7.4 -- CHARTER-NET-HKY-NC - Charter Communications 14 - AS7491 11527 0.5% 125.3 -- PI-PH-AS-AP PI-PHILIPINES 15 - AS7545 11205 0.5% 8.3 -- TPG-INTERNET-AP TPG Internet Pty Ltd 16 - AS4323 10876 0.5% 4.1 -- TWTC - tw telecom holdings, inc. 17 - AS8151 10834 0.5% 8.6 -- Uninet S.A. de C.V. 18 - AS28573 10339 0.5% 6.6 -- NET Servicos de Comunicao S.A. 19 - AS17224 9487 0.4% 169.4 -- ATT-CERFNET-BLOCK - AT&T Enhanced Network Services 20 - AS27738 9133 0.4% 26.9 -- Ecuadortelecom S.A. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS19743 31254 1.4% 4464.9 -- 2 - AS44609 12775 0.6% 4258.3 -- FNA Fars News Agency Cultural Arts Institute 3 - AS35931 13544 0.6% 2257.3 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 4 - AS32528 17918 0.8% 2239.8 -- ABBOTT Abbot Labs 5 - AS49600 1519 0.1% 1519.0 -- LASEDA La Seda de Barcelona, S.A 6 - AS52280 1442 0.1% 1442.0 -- INTERNEXA Chile S.A. 7 - AS32949 1434 0.1% 717.0 -- UNITED-REFRIGERATION - UNITED REFRIGERATION INC 8 - AS20132 874 0.0% 437.0 -- DSC-AS - Dundee Securities Corporation 9 - AS3 408 0.0% 735.0 -- SL-NET-ASN SL-NET s.c. 10 - AS50364 403 0.0% 403.0 -- INPRIME InPrime Ltd 11 - AS48349 395 0.0% 395.0 -- SICE-IT-AS JSC "Siberian Interbank Currency Exchange - Information Technologies" 12 - AS52000 761 0.0% 380.5 -- ALDAN-3-AS LTD "ALDAN-3" 13 - AS11843 700 0.0% 350.0 -- BARNES - Barnes Distribution 14 - AS52126 337 0.0% 337.0 -- IXTERM-AS ixTerm Ltd. 15 - AS46167 325 0.0% 325.0 -- LANDSERVICESUSA - Land Services USA, Inc 16 - AS33362 3680 0.2% 306.7 -- WIKTEL-NET - Wikstrom Telephone Company, Incorporated 17 - AS38757 569 0.0% 284.5 -- ICONPLN-ID-AP PT. Indonesia Comnets Plus 18 - AS31662 569 0.0% 284.5 -- KNSURSELVA aurax connecta AG 19 - AS36059 284 0.0% 284.0 -- MEDMANAGEMENT-LLC - MedManagement, LLC 20 - AS45310 267 0.0% 267.0 -- PISHON-SMARTNET-AS-ID SMARTNET - Broadband Internet Service. TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 221.121.96.0/19 9147 0.4% AS7491 -- PI-PH-AS-AP PI-PHILIPINES 2 - 130.36.34.0/24 8943 0.3% AS32528 -- ABBOTT Abbot Labs 3 - 130.36.35.0/24 8943 0.3% AS32528 -- ABBOTT Abbot Labs 4 - 63.211.68.0/22 7754 0.3% AS35931 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 5 - 178.22.72.0/21 6429 0.2% AS44609 -- FNA Fars News Agency Cultural Arts Institute 6 - 178.22.79.0/24 6326 0.2% AS44609 -- FNA Fars News Agency Cultural Arts Institute 7 - 65.122.196.0/24 6261 0.2% AS19743 -- 8 - 198.140.43.0/24 5352 0.2% AS35931 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 9 - 72.164.144.0/24 5001 0.2% AS19743 -- 10 - 65.162.204.0/24 4999 0.2% AS19743 -- 11 - 66.238.91.0/24 4997 0.2% AS19743 -- 12 - 65.163.182.0/24 4996 0.2% AS19743 -- 13 - 66.89.98.0/24 4996 0.2% AS19743 -- 14 - 202.92.235.0/24 3908 0.1% AS9498 -- BBIL-AP BHARTI Airtel Ltd. 15 - 68.65.152.0/22 3673 0.1% AS11915 -- TELWEST-NETWORK-SVCS-STATIC - TEL WEST COMMUNICATIONS LLC 16 - 202.153.174.0/24 3518 0.1% AS17408 -- ABOVE-AS-AP AboveNet Communications Taiwan 17 - 213.55.75.0/24 2790 0.1% AS24757 -- EthioNet-AS 18 - 213.55.74.0/24 2788 0.1% AS24757 -- EthioNet-AS 19 - 208.54.82.0/24 2734 0.1% AS701 -- UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 20 - 213.55.64.0/24 2521 0.1% AS24757 -- EthioNet-AS Details at http://bgpupdates.potaroo.net ------------------------------------ Copies of this report are mailed to: nanog(a)nanog.org eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org

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The Cidr Report
by cidr-report＠potaroo.net 23 Apr '11

23 Apr '11

This report has been generated at Fri Apr 22 21:12:05 2011 AEST. The report analyses the BGP Routing Table of AS2.0 router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org for a current version of this report. Recent Table History Date Prefixes CIDR Agg 15-04-11 357492 209863 16-04-11 357568 209705 17-04-11 356846 210150 18-04-11 357824 210186 19-04-11 358136 210366 20-04-11 358373 210576 21-04-11 358318 210619 22-04-11 358888 210705 AS Summary 37468 Number of ASes in routing system 15788 Number of ASes announcing only one prefix 3651 Largest number of prefixes announced by an AS AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc. 110418432 Largest address span announced by an AS (/32s) AS4134 : CHINANET-BACKBONE No.31,Jin-rong Street Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 22Apr11 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 358798 210633 148165 41.3% All ASes AS6389 3651 260 3391 92.9% BELLSOUTH-NET-BLK - BellSouth.net Inc. AS4323 2641 402 2239 84.8% TWTC - tw telecom holdings, inc. AS4766 2430 915 1515 62.3% KIXS-AS-KR Korea Telecom AS6478 1636 214 1422 86.9% ATT-INTERNET3 - AT&T Services, Inc. AS22773 1299 93 1206 92.8% ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. AS19262 1495 298 1197 80.1% VZGNI-TRANSIT - Verizon Online LLC AS18566 1760 662 1098 62.4% COVAD - Covad Communications Co. AS10620 1437 347 1090 75.9% Telmex Colombia S.A. AS4755 1454 365 1089 74.9% TATACOMM-AS TATA Communications formerly VSNL is Leading ISP AS1785 1792 764 1028 57.4% AS-PAETEC-NET - PaeTec Communications, Inc. AS28573 1281 337 944 73.7% NET Servicos de Comunicao S.A. AS7552 1037 117 920 88.7% VIETEL-AS-AP Vietel Corporation AS7545 1552 758 794 51.2% TPG-INTERNET-AP TPG Internet Pty Ltd AS18101 934 151 783 83.8% RELIANCE-COMMUNICATIONS-IN Reliance Communications Ltd.DAKC MUMBAI AS8151 1245 529 716 57.5% Uninet S.A. de C.V. AS4808 1034 332 702 67.9% CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network AS3356 1145 476 669 58.4% LEVEL3 Level 3 Communications AS7303 927 264 663 71.5% Telecom Argentina S.A. AS11492 1256 597 659 52.5% CABLEONE - CABLE ONE, INC. AS17488 942 300 642 68.2% HATHWAY-NET-AP Hathway IP Over Cable Internet AS6503 908 280 628 69.2% Axtel, S.A.B. de C.V. AS17676 658 70 588 89.4% GIGAINFRA Softbank BB Corp. AS24560 1140 560 580 50.9% AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services AS855 632 56 576 91.1% CANET-ASN-4 - Bell Aliant Regional Communications, Inc. AS14420 663 104 559 84.3% CORPORACION NACIONAL DE TELECOMUNICACIONES - CNT EP AS3549 944 394 550 58.3% GBLX Global Crossing Ltd. AS22047 565 30 535 94.7% VTR BANDA ANCHA S.A. AS4780 718 188 530 73.8% SEEDNET Digital United Inc. AS22561 863 340 523 60.6% DIGITAL-TELEPORT - Digital Teleport Inc. AS4804 576 82 494 85.8% MPX-AS Microplex PTY LTD Total 38615 10285 28330 73.4% Top 30 total Possible Bogus Routes 10.86.64.32/30 AS65530 -Private Use AS- 10.86.64.36/30 AS65530 -Private Use AS- 10.86.65.32/30 AS65530 -Private Use AS- 10.86.65.36/30 AS65530 -Private Use AS- 10.255.255.0/30 AS65530 -Private Use AS- 10.255.255.4/30 AS65530 -Private Use AS- 10.255.255.8/30 AS65530 -Private Use AS- 24.48.0.0/14 AS5769 VIDEOTRON - Videotron Telecom Ltee 24.225.128.0/18 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.192.0/18 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.192.0/23 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.224.0/21 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.237.0/24 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.248.0/21 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 41.222.79.0/24 AS36938 AMSCOTELECOMS Amsco Telecommunications Nigeria Limited 41.223.92.0/22 AS36936 CELTEL-GABON Celtel Gabon Internet Service 45.127.0.0/16 AS13767 DBANK - DataBank Holdings, Ltd. 62.61.220.0/24 AS24974 TACHYON-EU Tachyon Europe BV 62.61.221.0/24 AS24974 TACHYON-EU Tachyon Europe BV 64.21.192.0/20 AS11610 INETNEBR-1 - Internet Nebraska Corporation 64.21.212.0/22 AS11610 INETNEBR-1 - Internet Nebraska Corporation 64.21.216.0/21 AS11610 INETNEBR-1 - Internet Nebraska Corporation 66.171.32.0/20 AS16626 GNAXNET-AS - Global Net Access, LLC 66.180.239.0/24 AS35888 VIGNETTE - VIGNETTE CORPORATION 66.206.47.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 66.207.32.0/20 AS23011 66.245.176.0/20 AS19318 NJIIX-AS-1 - NEW JERSEY INTERNATIONAL INTERNET EXCHANGE LLC 69.6.80.0/24 AS13442 69.6.81.0/24 AS13442 71.19.134.0/23 AS3313 INET-AS BT Italia S.p.A. 72.22.32.0/19 AS33150 72.22.61.0/24 AS33150 72.22.62.0/24 AS33150 76.77.32.0/19 AS2828 XO-AS15 - XO Communications 80.88.10.0/24 AS33774 DJAWEB 80.88.12.0/24 AS33779 wataniya-telecom-as 110.34.44.0/22 AS12653 COMTONET KB Impuls Hellas 115.42.28.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.40.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.42.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.44.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.47.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.48.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.49.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.50.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.51.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.52.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.53.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.54.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.55.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.56.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.57.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.58.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.59.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.61.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.62.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.63.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 117.120.56.0/21 AS4755 TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 121.46.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 142.54.0.0/19 AS23498 CDSI - Cogeco Data Services Inc. 158.222.70.0/23 AS6137 SISNA - SISNA, Inc. 158.222.72.0/23 AS6137 SISNA - SISNA, Inc. 158.222.224.0/20 AS19864 O1COMM - O1 COMMUNICATIONS 158.222.224.0/22 AS19864 O1COMM - O1 COMMUNICATIONS 158.222.229.0/24 AS19864 O1COMM - O1 COMMUNICATIONS 172.102.0.0/22 AS4812 CHINANET-SH-AP China Telecom (Group) 181.82.15.0/24 AS23982 SENDB-AS-KR Dongbu District Office of Education in Seoul 181.82.16.0/24 AS23982 SENDB-AS-KR Dongbu District Office of Education in Seoul 181.82.17.0/24 AS38418 SENSD-AS-KR seoul seondong district office of education 181.82.18.0/24 AS38418 SENSD-AS-KR seoul seondong district office of education 190.102.32.0/20 AS30058 FDCSERVERS - FDCservers.net 190.104.32.0/21 AS27882 Telefónica Celular de Bolivia S.A. 192.9.0.0/16 AS11479 BRM-SUN-AS - Sun Microsystems, Inc 192.64.85.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.69.108.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.101.46.0/24 AS6503 Axtel, S.A.B. de C.V. 192.101.64.0/21 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe 192.101.70.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 192.101.71.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 192.101.72.0/24 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe 192.101.74.0/24 AS1239 SPRINTLINK - Sprint 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.131.233.0/24 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 192.145.251.0/24 AS10026 PACNET Pacnet Global Ltd 192.154.32.0/19 AS81 NCREN - MCNC 192.154.64.0/19 AS81 NCREN - MCNC 192.188.208.0/20 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 196.2.224.0/22 AS24863 LINKdotNET-AS 196.6.108.0/24 AS5713 SAIX-NET 196.13.201.0/24 AS2018 TENET-1 196.13.202.0/24 AS2018 TENET-1 196.13.203.0/24 AS2018 TENET-1 196.13.204.0/24 AS2018 TENET-1 196.110.105.0/24 AS8513 SKYVISION SkyVision Network Services 196.202.224.0/21 AS8818 TELE Greenland Autonomous System 198.1.2.0/24 AS4761 INDOSAT-INP-AP INDOSAT Internet Network Provider 198.15.4.0/24 AS4323 TWTC - tw telecom holdings, inc. 198.15.5.0/24 AS4323 TWTC - tw telecom holdings, inc. 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.73.210.0/24 AS21570 ACI-1 - Accelerated Connections Inc. 198.74.38.0/24 AS16966 SBCIDC-LSAN03 - AT&T Internet Services 198.74.39.0/24 AS16966 SBCIDC-LSAN03 - AT&T Internet Services 198.74.40.0/24 AS16966 SBCIDC-LSAN03 - AT&T Internet Services 198.97.72.0/21 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 198.97.96.0/19 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 198.97.240.0/20 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 198.99.241.0/24 AS11797 AC-NIELSEN-AS AC NIELSEN 198.161.87.0/24 AS6539 GT-BELL - Bell Canada 198.163.214.0/24 AS21804 ACCESS-SK - Access Communications Co-operative Limited 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.168.0.0/16 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 198.175.231.0/24 AS19262 VZGNI-TRANSIT - Verizon Online LLC 198.180.198.0/24 AS23715 SEOUL-INTGW-GXS-AP Global Exchange Services 198.182.235.0/24 AS3356 LEVEL3 Level 3 Communications 199.16.32.0/19 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 199.33.84.0/22 AS9911 CONNECTPLUS-AP Singapore Telecom 199.121.0.0/16 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 199.123.16.0/20 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 199.185.130.0/23 AS19662 UNISERVE-ONLINE - Uniserve On Line 199.202.0.0/16 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 199.202.216.0/21 AS577 BACOM - Bell Canada 199.246.116.0/24 AS813 UUNET-CANADA - MCI Communications Services, Inc. d/b/a Verizon Business 200.1.112.0/24 AS29754 GO2TEL GO2TEL.COM INC. 200.24.73.0/24 AS26061 Equant Colombia 200.24.76.0/24 AS7195 Telecorp Colombia S.A. 200.24.78.0/26 AS3549 GBLX Global Crossing Ltd. 200.24.78.64/26 AS3549 GBLX Global Crossing Ltd. 202.1.224.0/24 AS10097 FLOWCOM Flow Communications 2/541 Kent St Sydney NSW 2000 202.9.55.0/24 AS2764 AAPT AAPT Limited 202.9.57.0/24 AS2764 AAPT AAPT Limited 202.58.113.0/24 AS19161 202.61.75.0/24 AS9927 PHILCOMNET-PH A Multihomed ISP Company 202.66.128.0/18 AS9584 GENESIS-AP Diyixian.com Limited 202.66.160.0/19 AS9584 GENESIS-AP Diyixian.com Limited 202.66.160.0/20 AS9584 GENESIS-AP Diyixian.com Limited 202.66.176.0/20 AS9584 GENESIS-AP Diyixian.com Limited 202.74.232.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.74.233.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.83.120.0/21 AS37972 202.83.124.0/24 AS37972 202.83.125.0/24 AS37972 202.83.126.0/24 AS37972 202.94.1.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.133.70.0/24 AS38616 WORLDCALL-AS-KHI Worldcall Telecom Limited 202.133.73.0/24 AS38616 WORLDCALL-AS-KHI Worldcall Telecom Limited 202.146.186.0/24 AS23655 SNAP-NZ-AS Snap Internet Limited 202.174.125.0/24 AS9498 BBIL-AP BHARTI Airtel Ltd. 202.176.1.0/24 AS9942 COMINDICO-AP SOUL Converged Communications Australia 202.179.131.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.179.134.0/24 AS23966 LDN-AS-PK LINKdotNET Telecom Limited 202.179.144.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 203.18.156.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 203.23.1.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.24.38.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.30.127.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.86.0/23 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.86.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.87.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.188.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 203.142.219.0/24 AS45149 203.175.107.0/24 AS45595 PKTELECOM-AS-PK Pakistan Telecom Company Limited 203.190.32.0/22 AS24564 204.9.216.0/23 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 204.10.232.0/21 AS33150 204.19.14.0/23 AS577 BACOM - Bell Canada 205.150.0.0/15 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 205.175.214.0/24 AS5583 ORANGE-BUSINESS-SERVICES-BENELUX Orange Business Services (formerly Equant) AS for BENELUX 205.189.134.0/24 AS11814 DISTRIBUTEL-AS11814 - DISTRIBUTEL COMMUNICATIONS LTD. 205.207.148.0/23 AS812 ROGERS-CABLE - Rogers Cable Communications Inc. 206.72.192.0/23 AS16526 BIRCH-TELECOM - Birch Telecom, Inc. 206.72.194.0/23 AS16526 BIRCH-TELECOM - Birch Telecom, Inc. 206.123.129.0/24 AS10790 INREACH-AS - InReach Internet 206.180.240.0/20 AS12083 KNOLOGY-NET - Knology Holdings 206.197.184.0/24 AS23304 DATOTEL-STL-AS - Datotel LLC, a NetLabs LLC Company 207.174.131.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.132.0/23 AS26116 INDRA - Indra's Net Inc. 207.174.152.0/23 AS26116 INDRA - Indra's Net Inc. 207.174.154.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.155.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.188.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.189.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.190.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.191.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.200.0/24 AS22658 EARTHNET - Earthnet, Inc. 207.174.248.0/21 AS6653 PRIVATEI - privateI, LLC 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc. 208.64.240.0/21 AS13871 TELEBYTE-NW - Telebyte NW 208.64.240.0/24 AS13871 TELEBYTE-NW - Telebyte NW 208.64.241.0/24 AS13871 TELEBYTE-NW - Telebyte NW 208.64.242.0/24 AS13871 TELEBYTE-NW - Telebyte NW 208.64.243.0/24 AS13871 TELEBYTE-NW - Telebyte NW 208.64.244.0/24 AS13871 TELEBYTE-NW - Telebyte NW 208.64.247.0/24 AS13871 TELEBYTE-NW - Telebyte NW 208.78.165.0/24 AS16565 208.83.53.0/24 AS40569 YGOMI-AS - Ygomi LLC 208.92.196.0/22 AS10929 NETELLIGENT - Netelligent Hosting Services Inc. 208.92.199.0/24 AS26198 3MENATWORK - 3Men@Work Integrated Networks, Inc. 209.54.123.0/24 AS6062 NETPLEX - NETPLEX 209.148.64.0/19 AS13773 TELNETCOMM - Telnet Communications 209.165.239.0/24 AS209 ASN-QWEST - Qwest Communications Company, LLC 209.177.64.0/20 AS6461 MFNX MFN - Metromedia Fiber Network 209.213.0.0/20 AS33005 ELTOPIA - Eltopia.com, LLC 209.213.1.0/24 AS7849 CROCKERCOM - CROCKER COMMUNICATIONS 209.213.4.0/24 AS7849 CROCKERCOM - CROCKER COMMUNICATIONS 210.5.128.0/20 AS4837 CHINA169-BACKBONE CNCGROUP China169 Backbone 210.56.150.0/23 AS38138 INTECH-TRANSIT-BD InTech Online Limited, INTERNET SERVICE LIMITED 216.10.235.0/24 AS13780 NTNCOMMUNICATIONS - NTN 216.10.236.0/24 AS13780 NTNCOMMUNICATIONS - NTN 216.21.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport 216.21.196.0/24 AS12251 INVISION - Invision.com, Inc. 216.21.201.0/24 AS12251 INVISION - Invision.com, Inc. 216.21.202.0/24 AS12251 INVISION - Invision.com, Inc. 216.21.206.0/23 AS12251 INVISION - Invision.com, Inc. 216.58.192.0/24 AS22702 X5SOLUTIONS - X5 Solutions, Inc. 216.58.197.0/24 AS22702 X5SOLUTIONS - X5 Solutions, Inc. 216.58.200.0/24 AS18530 ISOMEDIA-1 - Isomedia Inc. 216.105.192.0/23 AS7385 INTEGRATELECOM - Integra Telecom, Inc. 216.105.196.0/23 AS7385 INTEGRATELECOM - Integra Telecom, Inc. 216.105.200.0/21 AS7385 INTEGRATELECOM - Integra Telecom, Inc. 216.172.198.0/24 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. 216.172.199.0/24 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. 216.194.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)nanog.org eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org

1 0

Weekly Routing Table Report
by Routing Analysis Role Account 22 Apr '11

22 Apr '11

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG, CaribNOG and the RIPE Routing Working Group. Daily listings are sent to bgp-stats(a)lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 23 Apr, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 355581 Prefixes after maximum aggregation: 160822 Deaggregation factor: 2.21 Unique aggregates announced to Internet: 175365 Total ASes present in the Internet Routing Table: 37371 Prefixes per ASN: 9.51 Origin-only ASes present in the Internet Routing Table: 31313 Origin ASes announcing only one prefix: 15071 Transit ASes present in the Internet Routing Table: 5046 Transit-only ASes present in the Internet Routing Table: 135 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 36 Max AS path prepend of ASN (36992) 29 Prefixes from unregistered ASNs in the Routing Table: 564 Unregistered ASNs in the Routing Table: 275 Number of 32-bit ASNs allocated by the RIRs: 1309 Number of 32-bit ASNs visible in the Routing Table: 1012 Prefixes from 32-bit ASNs in the Routing Table: 2274 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 161 Number of addresses announced to Internet: 2418199616 Equivalent to 144 /8s, 34 /16s and 204 /24s Percentage of available address space announced: 65.2 Percentage of allocated address space announced: 65.2 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 90.5 Total number of prefixes smaller than registry allocations: 147668 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 88888 Total APNIC prefixes after maximum aggregation: 29965 APNIC Deaggregation factor: 2.97 Prefixes being announced from the APNIC address blocks: 85376 Unique aggregates announced from the APNIC address blocks: 36841 APNIC Region origin ASes present in the Internet Routing Table: 4419 APNIC Prefixes per ASN: 19.32 APNIC Region origin ASes announcing only one prefix: 1226 APNIC Region transit ASes present in the Internet Routing Table: 700 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 22 Number of APNIC region 32-bit ASNs visible in the Routing Table: 48 Number of APNIC addresses announced to Internet: 610706464 Equivalent to 36 /8s, 102 /16s and 164 /24s Percentage of available APNIC address space announced: 77.4 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 55296-56319, 131072-132095 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 140032 Total ARIN prefixes after maximum aggregation: 71172 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 112430 Unique aggregates announced from the ARIN address blocks: 45157 ARIN Region origin ASes present in the Internet Routing Table: 14334 ARIN Prefixes per ASN: 7.84 ARIN Region origin ASes announcing only one prefix: 5473 ARIN Region transit ASes present in the Internet Routing Table: 1492 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 11 Number of ARIN addresses announced to Internet: 798645760 Equivalent to 47 /8s, 154 /16s and 94 /24s Percentage of available ARIN address space announced: 63.5 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 393216-394239 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8, 174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 84022 Total RIPE prefixes after maximum aggregation: 47852 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 77130 Unique aggregates announced from the RIPE address blocks: 51011 RIPE Region origin ASes present in the Internet Routing Table: 15538 RIPE Prefixes per ASN: 4.96 RIPE Region origin ASes announcing only one prefix: 7807 RIPE Region transit ASes present in the Internet Routing Table: 2435 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 749 Number of RIPE addresses announced to Internet: 466814464 Equivalent to 27 /8s, 211 /16s and 6 /24s Percentage of available RIPE address space announced: 75.2 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 196608-198655 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 32482 Total LACNIC prefixes after maximum aggregation: 7448 LACNIC Deaggregation factor: 4.36 Prefixes being announced from the LACNIC address blocks: 31486 Unique aggregates announced from the LACNIC address blocks: 16475 LACNIC Region origin ASes present in the Internet Routing Table: 1439 LACNIC Prefixes per ASN: 21.88 LACNIC Region origin ASes announcing only one prefix: 432 LACNIC Region transit ASes present in the Internet Routing Table: 261 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 19 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 199 Number of LACNIC addresses announced to Internet: 82681984 Equivalent to 4 /8s, 237 /16s and 160 /24s Percentage of available LACNIC address space announced: 54.8 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 7658 Total AfriNIC prefixes after maximum aggregation: 1822 AfriNIC Deaggregation factor: 4.20 Prefixes being announced from the AfriNIC address blocks: 6067 Unique aggregates announced from the AfriNIC address blocks: 1881 AfriNIC Region origin ASes present in the Internet Routing Table: 441 AfriNIC Prefixes per ASN: 13.76 AfriNIC Region origin ASes announcing only one prefix: 133 AfriNIC Region transit ASes present in the Internet Routing Table: 95 Average AfriNIC Region AS path length visible: 4.7 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5 Number of AfriNIC addresses announced to Internet: 23300352 Equivalent to 1 /8s, 99 /16s and 137 /24s Percentage of available AfriNIC address space announced: 34.7 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 2430 9482 904 Korea Telecom (KIX) 17974 1798 515 29 PT TELEKOMUNIKASI INDONESIA 7545 1549 300 81 TPG Internet Pty Ltd 4755 1454 634 167 TATA Communications formerly 7552 1195 1064 7 Vietel Corporation 24560 1140 323 204 Bharti Airtel Ltd., Telemedia 9583 1054 77 495 Sify Limited 4808 1030 2097 293 CNCGROUP IP network: China169 9829 1008 870 50 BSNL National Internet Backbo 17488 942 164 98 Hathway IP Over Cable Interne Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3652 3822 255 bellsouth.net, inc. 4323 2649 1090 398 Time Warner Telecom 1785 1789 681 128 PaeTec Communications, Inc. 18566 1760 349 229 Covad Communications 6478 1636 309 43 AT&T Worldnet Services 20115 1535 1552 638 Charter Communications 19262 1495 4949 298 Verizon Global Networks 7018 1357 6801 886 AT&T WorldNet Services 22773 1299 2865 84 Cox Communications, Inc. 2386 1270 536 912 AT&T Data Communications Serv Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6830 519 1780 321 UPC Distribution Services 34984 508 106 182 BILISIM TELEKOM 3292 455 1997 391 TDC Tele Danmark 29049 450 33 48 AzerSat LLC. 8866 446 134 26 Bulgarian Telecommunication C 20940 439 129 335 Akamai Technologies European 3320 423 7609 368 Deutsche Telekom AG 12479 409 577 6 Uni2 Autonomous System 8551 405 354 47 Bezeq International 702 396 1802 309 UUNET - Commercial IP service Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 10620 1437 268 160 TVCABLE BOGOTA 28573 1281 988 87 NET Servicos de Comunicao S.A 8151 1248 2688 369 UniNet S.A. de C.V. 7303 927 467 149 Telecom Argentina Stet-France 6503 907 354 72 AVANTEL, S.A. 14420 663 53 91 CORPORACION NACIONAL DE TELEC 22047 565 310 15 VTR PUNTO NET S.A. 3816 516 225 98 Empresa Nacional de Telecomun 11172 488 99 82 Servicios Alestra S.A de C.V 27947 483 53 53 Telconet S.A Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 8452 836 445 11 TEDATA 24863 778 147 39 LINKdotNET AS number 15475 422 90 8 Nile Online 36992 297 415 13 Etisalat MISR 3741 267 985 227 The Internet Solution 6713 238 215 13 Itissalat Al-MAGHRIB 33776 227 13 5 Starcomms Nigeria Limited 24835 209 78 10 RAYA Telecom - Egypt 29571 161 17 11 Ci Telecom Autonomous system 16637 148 441 86 MTN Network Solutions Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3652 3822 255 bellsouth.net, inc. 4323 2649 1090 398 Time Warner Telecom 4766 2430 9482 904 Korea Telecom (KIX) 23456 2274 652 1233 32-bit ASN transition 17974 1798 515 29 PT TELEKOMUNIKASI INDONESIA 1785 1789 681 128 PaeTec Communications, Inc. 18566 1760 349 229 Covad Communications 6478 1636 309 43 AT&T Worldnet Services 7545 1549 300 81 TPG Internet Pty Ltd 20115 1535 1552 638 Charter Communications Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 2649 2251 Time Warner Telecom 17974 1798 1769 PT TELEKOMUNIKASI INDONESIA 1785 1789 1661 PaeTec Communications, Inc. 6478 1636 1593 AT&T Worldnet Services 18566 1760 1531 Covad Communications 4766 2430 1526 Korea Telecom (KIX) 7545 1549 1468 TPG Internet Pty Ltd 4755 1454 1287 TATA Communications formerly 10620 1437 1277 TVCABLE BOGOTA 11492 1254 1239 Cable One Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic 13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.225.128.0/18 36377 Comcast Telecommunications, I 24.225.192.0/23 36377 Comcast Telecommunications, I 24.225.192.0/18 36377 Comcast Telecommunications, I 24.225.224.0/21 36377 Comcast Telecommunications, I 24.225.237.0/24 36377 Comcast Telecommunications, I 24.225.248.0/21 36377 Comcast Telecommunications, I 31.192.112.0/20 30361 Swiftwill Solutions 31.192.128.0/19 31214 TIS-DIALOG Autonomous system 31.192.232.0/23 47271 CJSC "Uralunicom" 31.192.232.0/22 47271 CJSC "Uralunicom" Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:20 /9:12 /10:28 /11:77 /12:221 /13:458 /14:786 /15:1379 /16:11668 /17:5741 /18:9624 /19:19173 /20:25618 /21:25611 /22:33775 /23:32642 /24:185589 /25:1120 /26:1285 /27:700 /28:38 /29:8 /30:2 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2253 3652 bellsouth.net, inc. 18566 1728 1760 Covad Communications 6478 1590 1636 AT&T Worldnet Services 4323 1346 2649 Time Warner Telecom 10620 1327 1437 TVCABLE BOGOTA 11492 1203 1254 Cable One 23456 1146 2274 32-bit ASN transition 7011 1062 1161 Citizens Utilities 1785 1059 1789 PaeTec Communications, Inc. 22773 843 1299 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:262 2:43 4:14 5:1 6:1 8:347 12:2010 13:1 14:441 15:15 16:3 17:8 20:9 23:5 24:1605 27:722 31:209 32:60 33:3 34:2 37:1 38:764 40:101 41:2400 42:3 44:3 46:866 47:4 49:177 50:365 52:13 55:3 56:2 57:31 58:846 59:478 60:387 61:1268 62:984 63:1919 64:3934 65:2326 66:4353 67:1856 68:1081 69:2977 70:700 71:345 72:1904 73:1 74:2349 75:297 76:335 77:844 78:676 79:452 80:1098 81:829 82:500 83:461 84:647 85:1082 86:559 87:760 88:332 89:1581 90:183 91:3709 92:514 93:1058 94:1260 95:787 96:466 97:251 98:823 99:35 101:63 103:5 106:1 107:5 108:84 109:932 110:550 111:695 112:325 113:361 114:523 115:683 116:949 117:674 118:800 119:1147 120:301 121:672 122:1626 123:1071 124:1250 125:1268 128:265 129:164 130:172 131:566 132:113 133:19 134:217 135:49 136:214 137:142 138:301 139:104 140:486 141:174 142:398 143:397 144:485 145:52 146:441 147:207 148:578 149:233 150:170 151:187 152:307 153:179 154:3 155:395 156:191 157:353 158:132 159:382 160:316 161:243 162:277 163:165 164:487 165:350 166:511 167:426 168:719 169:153 170:784 171:77 172:1 173:1502 174:531 175:359 177:79 178:853 180:821 181:9 182:428 183:201 184:252 185:1 186:1140 187:802 188:985 189:1004 190:4846 192:5792 193:4829 194:3457 195:2964 196:1166 197:16 198:3564 199:3920 200:5522 201:1493 202:8351 203:8446 204:4136 205:2329 206:2745 207:3029 208:3964 209:3505 210:2726 211:1382 212:1973 213:1712 214:744 215:67 216:4879 217:1657 218:561 219:374 220:1195 221:483 222:341 223:143 End of report

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Analysis of the ‘Maximum Length’ Option in Certification ROAs
by Alex Band 20 Apr '11

20 Apr '11

[apologies for duplicates] Dear colleagues, We just published an article on RIPE Labs on the usage of the 'Maximum Length' option in ROAs. We compared all the prefixes in the Repository which are covered by a ROA to the prefixes seen by RIS. It gives a good indication how people are using this option, and what the effects are when people base routing decisions on validation results. You can read the article here: https://labs.ripe.net/Members/AlexBand/using-the-maximum-length-option-in-r… Kind regards, Alex Band Product Manager

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