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@lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfsinoz@gmail.com>. Routing Table Report 04:00 +10GMT Sat 29 Oct, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 379556 Prefixes after maximum aggregation: 166311 Deaggregation factor: 2.28 Unique aggregates announced to Internet: 186116 Total ASes present in the Internet Routing Table: 39180 Prefixes per ASN: 9.69 Origin-only ASes present in the Internet Routing Table: 32352 Origin ASes announcing only one prefix: 15498 Transit ASes present in the Internet Routing Table: 5266 Transit-only ASes present in the Internet Routing Table: 133 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 33 Max AS path prepend of ASN (48687) 24 Prefixes from unregistered ASNs in the Routing Table: 1580 Unregistered ASNs in the Routing Table: 843 Number of 32-bit ASNs allocated by the RIRs: 1911 Number of 32-bit ASNs visible in the Routing Table: 1562 Prefixes from 32-bit ASNs in the Routing Table: 3627 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 95 Number of addresses announced to Internet: 2489057440 Equivalent to 148 /8s, 92 /16s and 0 /24s Percentage of available address space announced: 67.2 Percentage of allocated address space announced: 67.2 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.5 Total number of prefixes smaller than registry allocations: 159572 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 94855 Total APNIC prefixes after maximum aggregation: 30982 APNIC Deaggregation factor: 3.06 Prefixes being announced from the APNIC address blocks: 91300 Unique aggregates announced from the APNIC address blocks: 38074 APNIC Region origin ASes present in the Internet Routing Table: 4590 APNIC Prefixes per ASN: 19.89 APNIC Region origin ASes announcing only one prefix: 1266 APNIC Region transit ASes present in the Internet Routing Table: 721 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 21 Number of APNIC region 32-bit ASNs visible in the Routing Table: 98 Number of APNIC addresses announced to Internet: 629428896 Equivalent to 37 /8s, 132 /16s and 82 /24s Percentage of available APNIC address space announced: 79.8 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 131072-132095, 132096-133119 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: 145811 Total ARIN prefixes after maximum aggregation: 74492 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 117702 Unique aggregates announced from the ARIN address blocks: 48191 ARIN Region origin ASes present in the Internet Routing Table: 14743 ARIN Prefixes per ASN: 7.98 ARIN Region origin ASes announcing only one prefix: 5663 ARIN Region transit ASes present in the Internet Routing Table: 1558 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 25 Number of ARIN region 32-bit ASNs visible in the Routing Table: 12 Number of ARIN addresses announced to Internet: 804671488 Equivalent to 47 /8s, 246 /16s and 80 /24s Percentage of available ARIN address space announced: 63.9 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: 91098 Total RIPE prefixes after maximum aggregation: 50841 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 83738 Unique aggregates announced from the RIPE address blocks: 54302 RIPE Region origin ASes present in the Internet Routing Table: 16072 RIPE Prefixes per ASN: 5.21 RIPE Region origin ASes announcing only one prefix: 7969 RIPE Region transit ASes present in the Internet Routing Table: 2528 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 33 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1092 Number of RIPE addresses announced to Internet: 491265472 Equivalent to 29 /8s, 72 /16s and 29 /24s Percentage of available RIPE address space announced: 79.1 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: 35470 Total LACNIC prefixes after maximum aggregation: 7898 LACNIC Deaggregation factor: 4.49 Prefixes being announced from the LACNIC address blocks: 34922 Unique aggregates announced from the LACNIC address blocks: 18132 LACNIC Region origin ASes present in the Internet Routing Table: 1540 LACNIC Prefixes per ASN: 22.68 LACNIC Region origin ASes announcing only one prefix: 442 LACNIC Region transit ASes present in the Internet Routing Table: 283 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 19 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 356 Number of LACNIC addresses announced to Internet: 92626368 Equivalent to 5 /8s, 133 /16s and 93 /24s Percentage of available LACNIC address space announced: 61.3 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: 8526 Total AfriNIC prefixes after maximum aggregation: 2021 AfriNIC Deaggregation factor: 4.22 Prefixes being announced from the AfriNIC address blocks: 6631 Unique aggregates announced from the AfriNIC address blocks: 1988 AfriNIC Region origin ASes present in the Internet Routing Table: 495 AfriNIC Prefixes per ASN: 13.40 AfriNIC Region origin ASes announcing only one prefix: 158 AfriNIC Region transit ASes present in the Internet Routing Table: 107 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 25 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4 Number of AfriNIC addresses announced to Internet: 27830528 Equivalent to 1 /8s, 168 /16s and 169 /24s Percentage of available AfriNIC address space announced: 41.5 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 2507 11096 967 Korea Telecom (KIX) 17974 1884 519 33 PT TELEKOMUNIKASI INDONESIA 7545 1611 303 84 TPG Internet Pty Ltd 4755 1539 637 174 TATA Communications formerly 7552 1393 1064 8 Vietel Corporation 9829 1166 989 28 BSNL National Internet Backbo 9583 1091 80 499 Sify Limited 4808 1090 2103 312 CNCGROUP IP network: China169 24560 964 342 218 Bharti Airtel Ltd., Telemedia 18101 953 166 150 Reliance Infocom Ltd Internet 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 3544 3814 220 bellsouth.net, inc. 7029 2329 1016 197 Windstream Communications Inc 18566 2097 383 177 Covad Communications 1785 1841 680 122 PaeTec Communications, Inc. 4323 1623 1078 388 Time Warner Telecom 20115 1595 1546 620 Charter Communications 22773 1458 2907 100 Cox Communications, Inc. 19262 1395 4728 400 Verizon Global Networks 30036 1393 253 671 Mediacom Communications Corp 7018 1317 7029 861 AT&T WorldNet Services 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 8402 1500 352 13 Corbina telecom 6830 653 1927 415 UPC Distribution Services 34984 590 108 180 BILISIM TELEKOM 20940 547 182 422 Akamai Technologies European 3320 506 8169 386 Deutsche Telekom AG 12479 479 596 9 Uni2 Autonomous System 3292 478 2074 405 TDC Tele Danmark 8866 461 133 26 Bulgarian Telecommunication C 8551 403 354 44 Bezeq International 31148 401 21 111 FreeNet ISP 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 1699 314 156 TVCABLE BOGOTA 28573 1473 1040 72 NET Servicos de Comunicao S.A 8151 1417 2927 348 UniNet S.A. de C.V. 7303 1231 748 177 Telecom Argentina Stet-France 27947 588 72 83 Telconet S.A 22047 580 322 17 VTR PUNTO NET S.A. 6503 572 450 69 AVANTEL, S.A. 7738 552 1050 31 Telecomunicacoes da Bahia S.A 3816 538 233 95 Empresa Nacional de Telecomun 11172 525 86 96 Servicios Alestra S.A de C.V 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 24863 802 146 36 LINKdotNET AS number 8452 651 446 12 TEDATA 15475 444 74 8 Nile Online 36992 299 415 20 Etisalat MISR 3741 280 939 229 The Internet Solution 6713 244 519 14 Itissalat Al-MAGHRIB 15706 240 32 6 Sudatel Internet Exchange Aut 33776 221 13 8 Starcomms Nigeria Limited 29571 219 18 14 Ci Telecom Autonomous system 12258 196 28 57 Vodacom Internet Company 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 3544 3814 220 bellsouth.net, inc. 4766 2507 11096 967 Korea Telecom (KIX) 7029 2329 1016 197 Windstream Communications Inc 18566 2097 383 177 Covad Communications 17974 1884 519 33 PT TELEKOMUNIKASI INDONESIA 1785 1841 680 122 PaeTec Communications, Inc. 10620 1699 314 156 TVCABLE BOGOTA 4323 1623 1078 388 Time Warner Telecom 7545 1611 303 84 TPG Internet Pty Ltd 20115 1595 1546 620 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 7029 2329 2132 Windstream Communications Inc 18566 2097 1920 Covad Communications 17974 1884 1851 PT TELEKOMUNIKASI INDONESIA 1785 1841 1719 PaeTec Communications, Inc. 10620 1699 1543 TVCABLE BOGOTA 4766 2507 1540 Korea Telecom (KIX) 7545 1611 1527 TPG Internet Pty Ltd 8402 1500 1487 Corbina telecom 28573 1473 1401 NET Servicos de Comunicao S.A 7552 1393 1385 Vietel Corporation 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 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 17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic 17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies, 16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic 32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser 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 41.79.132.0/23 30969 Zimbabwe OnLine (Private) Ltd 41.79.132.0/22 30969 Zimbabwe OnLine (Private) Ltd 41.79.134.0/23 30969 Zimbabwe OnLine (Private) Ltd 41.222.79.0/24 36938 >>UNKNOWN<< 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 /8:19 /9:12 /10:27 /11:81 /12:236 /13:465 /14:809 /15:1427 /16:12024 /17:6073 /18:10088 /19:19938 /20:27559 /21:27543 /22:37225 /23:35231 /24:197353 /25:1167 /26:1351 /27:757 /28:162 /29:4 /30:0 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2184 3544 bellsouth.net, inc. 18566 2046 2097 Covad Communications 7029 1999 2329 Windstream Communications Inc 10620 1594 1699 TVCABLE BOGOTA 8402 1476 1500 Corbina telecom 30036 1354 1393 Mediacom Communications Corp 11492 1118 1156 Cable One 1785 1056 1841 PaeTec Communications, Inc. 7011 1050 1168 Citizens Utilities 22773 946 1458 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:411 2:490 4:15 5:1 6:3 8:361 12:1954 13:1 14:544 15:11 16:3 17:7 20:9 23:60 24:1683 27:972 31:626 32:61 33:2 34:2 36:4 38:757 40:110 41:2664 42:53 44:3 46:1007 47:3 49:291 50:438 52:13 55:6 56:2 57:40 58:884 59:494 60:363 61:1174 62:1087 63:1950 64:4058 65:2305 66:4275 67:1982 68:1154 69:3202 70:883 71:382 72:1805 74:2604 75:393 76:318 77:879 78:868 79:452 80:1134 81:838 82:502 83:527 84:619 85:1122 86:403 87:890 88:353 89:1607 90:237 91:4242 92:530 93:1532 94:1302 95:1077 96:434 97:284 98:928 99:37 101:220 103:413 106:70 107:78 108:72 109:1055 110:665 111:795 112:334 113:487 114:617 115:710 116:880 117:721 118:901 119:1262 120:339 121:693 122:1566 123:1016 124:1354 125:1361 128:243 129:185 130:164 131:626 132:146 133:21 134:220 135:54 136:213 137:140 138:286 139:123 140:489 141:309 142:389 143:419 144:495 145:63 146:461 147:216 148:642 149:267 150:167 151:194 152:447 153:178 154:7 155:389 156:208 157:358 158:154 159:484 160:331 161:214 162:341 163:173 164:511 165:370 166:539 167:435 168:742 169:146 170:873 171:86 172:4 173:1718 174:673 175:423 176:282 177:356 178:1079 180:1121 181:36 182:653 183:220 184:379 185:1 186:1301 187:707 188:949 189:867 190:5144 192:5933 193:5037 194:3560 195:3115 196:1230 197:164 198:3627 199:4166 200:5519 201:1687 202:8572 203:8480 204:4306 205:2363 206:2674 207:2824 208:4027 209:3575 210:2713 211:1459 212:2086 213:1777 214:796 215:96 216:4924 217:1602 218:563 219:342 220:1250 221:515 222:343 223:271 End of report