This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats@lists.apnic.net For historical data, please see http://thyme.apnic.net. If you have any comments please contact Philip Smith <pfs@cisco.com>. Routing Table Report 04:00 +10GMT Sat 30 Aug, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 267403 Prefixes after maximum aggregation: 129611 Deaggregation factor: 2.06 Unique aggregates announced to Internet: 130029 Total ASes present in the Internet Routing Table: 29086 Prefixes per ASN: 9.19 Origin-only ASes present in the Internet Routing Table: 25321 Origin ASes announcing only one prefix: 12271 Transit ASes present in the Internet Routing Table: 3765 Transit-only ASes present in the Internet Routing Table: 83 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 26 Max AS path prepend of ASN ( 3816) 15 Prefixes from unregistered ASNs in the Routing Table: 584 Unregistered ASNs in the Routing Table: 211 Number of 32-bit ASNs allocated by the RIRs: 59 Prefixes from 32-bit ASNs in the Routing Table: 7 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 758 Number of addresses announced to Internet: 1895287072 Equivalent to 112 /8s, 247 /16s and 201 /24s Percentage of available address space announced: 51.1 Percentage of allocated address space announced: 62.1 Percentage of available address space allocated: 82.3 Percentage of address space in use by end-sites: 73.3 Total number of prefixes smaller than registry allocations: 131240 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 61349 Total APNIC prefixes after maximum aggregation: 22780 APNIC Deaggregation factor: 2.69 Prefixes being announced from the APNIC address blocks: 58289 Unique aggregates announced from the APNIC address blocks: 26196 APNIC Region origin ASes present in the Internet Routing Table: 3351 APNIC Prefixes per ASN: 17.39 APNIC Region origin ASes announcing only one prefix: 885 APNIC Region transit ASes present in the Internet Routing Table: 511 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 374332192 Equivalent to 22 /8s, 79 /16s and 219 /24s Percentage of available APNIC address space announced: 79.7 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 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, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 122481 Total ARIN prefixes after maximum aggregation: 64799 ARIN Deaggregation factor: 1.89 Prefixes being announced from the ARIN address blocks: 91576 Unique aggregates announced from the ARIN address blocks: 35030 ARIN Region origin ASes present in the Internet Routing Table: 12412 ARIN Prefixes per ASN: 7.38 ARIN Region origin ASes announcing only one prefix: 4782 ARIN Region transit ASes present in the Internet Routing Table: 1189 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 15 Number of ARIN addresses announced to Internet: 360803168 Equivalent to 21 /8s, 129 /16s and 107 /24s Percentage of available ARIN address space announced: 74.2 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 ARIN Address Blocks 24/8, 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, 173/8, 174/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 57701 Total RIPE prefixes after maximum aggregation: 34980 RIPE Deaggregation factor: 1.65 Prefixes being announced from the RIPE address blocks: 52817 Unique aggregates announced from the RIPE address blocks: 35529 RIPE Region origin ASes present in the Internet Routing Table: 11793 RIPE Prefixes per ASN: 4.48 RIPE Region origin ASes announcing only one prefix: 6194 RIPE Region transit ASes present in the Internet Routing Table: 1795 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 370029760 Equivalent to 22 /8s, 14 /16s and 52 /24s Percentage of available RIPE address space announced: 84.8 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, 47104-48127 RIPE Address Blocks 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, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 21248 Total LACNIC prefixes after maximum aggregation: 5325 LACNIC Deaggregation factor: 3.99 Prefixes being announced from the LACNIC address blocks: 19481 Unique aggregates announced from the LACNIC address blocks: 10795 LACNIC Region origin ASes present in the Internet Routing Table: 986 LACNIC Prefixes per ASN: 19.76 LACNIC Region origin ASes announcing only one prefix: 324 LACNIC Region transit ASes present in the Internet Routing Table: 167 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 18 Number of LACNIC addresses announced to Internet: 54844416 Equivalent to 3 /8s, 68 /16s and 220 /24s Percentage of available LACNIC address space announced: 54.5 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 4039 Total AfriNIC prefixes after maximum aggregation: 1253 AfriNIC Deaggregation factor: 3.22 Prefixes being announced from the AfriNIC address blocks: 4386 Unique aggregates announced from the AfriNIC address blocks: 1910 AfriNIC Region origin ASes present in the Internet Routing Table: 252 AfriNIC Prefixes per ASN: 17.40 AfriNIC Region origin ASes announcing only one prefix: 86 AfriNIC Region transit ASes present in the Internet Routing Table: 54 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 12647424 Equivalent to 0 /8s, 192 /16s and 252 /24s Percentage of available AfriNIC address space announced: 37.7 AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 196/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4755 1712 538 180 Videsh Sanchar Nigam Ltd. Aut 17488 1370 89 104 Hathway IP Over Cable Interne 9583 1109 89 492 Sify Limited 4766 871 6407 357 Korea Telecom (KIX) 4134 838 13619 341 CHINANET-BACKBONE 23577 820 35 695 Korea Telecom (ATM-MPLS) 4780 712 353 61 Digital United Inc. 18101 694 167 31 Reliance Infocom Ltd Internet 9498 674 291 53 BHARTI BT INTERNET LTD. 4808 623 1108 136 CNCGROUP IP network: China169 Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 4307 3416 344 bellsouth.net, inc. 209 2883 3873 617 Qwest 6298 2013 323 717 Cox Communicatons 1785 1649 710 156 AppliedTheory Corporation 2386 1559 691 900 AT&T Data Communications Serv 4323 1500 1073 374 Time Warner Telecom 20115 1478 1194 670 Charter Communications 7018 1409 5785 978 AT&T WorldNet Services 11492 1211 151 22 Cable One 6478 1134 239 187 AT&T Worldnet Services Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 3292 414 1776 372 TDC Tele Danmark 3215 396 2756 106 France Telecom Transpac 8452 358 188 11 TEDATA 3301 334 1444 305 TeliaNet Sweden 3320 323 7047 271 Deutsche Telekom AG 8866 317 77 21 Bulgarian Telecommunication C 5462 296 666 27 Telewest Broadband 8551 288 270 38 Bezeq International 680 275 2047 265 DFN-IP service G-WiN 8708 267 422 252 Romania Data Systems S.A. Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 1589 2606 230 UniNet S.A. de C.V. 11830 664 299 9 Instituto Costarricense de El 22047 564 270 14 VTR PUNTO NET S.A. 7303 477 235 67 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 6471 421 85 48 ENTEL CHILE S.A. 10620 411 102 71 TVCABLE BOGOTA 11172 409 118 73 Servicios Alestra S.A de C.V 14117 345 23 9 Telefonica del Sur S.A. 28573 338 440 29 NET Servicos de Comunicao S.A Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 508 65 36 LINKdotNET AS number 20858 402 34 3 EgyNet 3741 266 855 223 The Internet Solution 2018 229 214 135 Tertiary Education Network 6713 143 135 11 Itissalat Al-MAGHRIB 33783 136 10 13 EEPAD TISP TELECOM & INTERNET 5536 120 8 17 Internet Egypt Network 33776 119 6 3 Starcomms Nigeria Limited 5713 118 539 70 Telkom SA Ltd 29571 107 13 8 Ci Telecom Autonomous system Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 4307 3416 344 bellsouth.net, inc. 209 2883 3873 617 Qwest 6298 2013 323 717 Cox Communicatons 4755 1712 538 180 Videsh Sanchar Nigam Ltd. Aut 1785 1649 710 156 AppliedTheory Corporation 8151 1589 2606 230 UniNet S.A. de C.V. 2386 1559 691 900 AT&T Data Communications Serv 4323 1500 1073 374 Time Warner Telecom 20115 1478 1194 670 Charter Communications 7018 1409 5785 978 AT&T WorldNet Services Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 209 2883 2266 Qwest 4755 1712 1532 Videsh Sanchar Nigam Ltd. Aut 1785 1649 1493 AppliedTheory Corporation 8151 1589 1359 UniNet S.A. de C.V. 6298 2013 1296 Cox Communicatons 17488 1370 1266 Hathway IP Over Cable Interne 11492 1211 1189 Cable One 4323 1500 1126 Time Warner Telecom 18566 1045 1035 Covad Communications 6478 1134 947 AT&T Worldnet Services Complete listing at http://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 16927 UNALLOCATED 12.0.252.0/23 701 UUNET Technologies, 22492 UNALLOCATED 12.2.46.0/24 7018 AT&T WorldNet Servic 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic 13632 UNALLOCATED 12.20.55.0/24 6517 Yipes Communications 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic 13632 UNALLOCATED 12.31.25.0/24 6517 Yipes Communications 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic Complete listing at http://thyme.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.75.160.0/19 7843 Adelphia Corp. 24.142.40.0/21 7018 AT&T WorldNet Services 24.142.160.0/19 7018 AT&T WorldNet Services 24.246.0.0/17 7018 AT&T WorldNet Services 24.246.128.0/18 7018 AT&T WorldNet Services 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 63.140.213.0/24 22555 Universal Talkware Corporatio 63.143.71.0/24 701 UUNET Technologies, Inc. 63.143.115.0/24 701 UUNET Technologies, Inc. 63.143.251.0/24 22555 Universal Talkware Corporatio Complete listing at http://thyme.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 /8:18 /9:9 /10:17 /11:45 /12:146 /13:292 /14:527 /15:1062 /16:10057 /17:4376 /18:7622 /19:16077 /20:18755 /21:18407 /22:23185 /23:24242 /24:139894 /25:834 /26:1022 /27:722 /28:77 /29:9 /30:1 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2861 4307 bellsouth.net, inc. 6298 1986 2013 Cox Communicatons 209 1652 2883 Qwest 2386 1237 1559 AT&T Data Communications Serv 11492 1192 1211 Cable One 17488 1178 1370 Hathway IP Over Cable Interne 1785 1118 1649 AppliedTheory Corporation 4755 1049 1712 Videsh Sanchar Nigam Ltd. Aut 6478 1027 1134 AT&T Worldnet Services 18566 1026 1045 Covad Communications Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:8 8:136 12:2135 13:2 15:22 16:3 17:5 18:13 20:35 24:1082 32:59 38:488 40:92 41:714 43:1 44:2 47:12 52:3 55:3 56:3 57:26 58:526 59:510 60:452 61:965 62:1209 63:2047 64:3231 65:2367 66:3453 67:1227 68:782 69:2289 70:868 71:132 72:2024 73:6 74:1127 75:170 76:314 77:769 78:801 79:243 80:977 81:871 82:583 83:374 84:574 85:982 86:401 87:717 88:339 89:1321 90:37 91:1428 92:251 93:808 94:111 96:62 97:65 98:317 99:6 114:92 115:41 116:1000 117:342 118:195 119:480 120:83 121:587 122:821 123:398 124:835 125:1194 128:356 129:202 130:134 131:413 132:70 133:9 134:188 135:34 136:223 137:97 138:141 139:94 140:507 141:103 142:407 143:312 144:411 145:51 146:372 147:157 148:513 149:202 150:127 151:180 152:145 153:136 154:10 155:278 156:174 157:299 158:163 159:299 160:274 161:136 162:256 163:158 164:515 165:490 166:365 167:332 168:628 169:142 170:429 171:33 172:10 173:33 188:1 189:549 190:2114 192:5799 193:4145 194:3251 195:2576 196:1025 198:3734 199:3313 200:5555 201:1527 202:7630 203:8095 204:3946 205:2157 206:2371 207:2758 208:3526 209:3431 210:2600 211:1088 212:1436 213:1613 214:178 215:50 216:4385 217:1207 218:346 219:429 220:1063 221:427 222:313 End of report