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 19 Jul, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 263570 Prefixes after maximum aggregation: 129383 Deaggregation factor: 2.04 Unique aggregates announced to Internet: 128648 Total ASes present in the Internet Routing Table: 28709 Prefixes per ASN: 9.18 Origin-only ASes present in the Internet Routing Table: 25036 Origin ASes announcing only one prefix: 12109 Transit ASes present in the Internet Routing Table: 3673 Transit-only ASes present in the Internet Routing Table: 76 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 19 Max AS path prepend of ASN ( 3816) 15 Prefixes from unregistered ASNs in the Routing Table: 585 Unregistered ASNs in the Routing Table: 215 Number of 32-bit ASNs allocated by the RIRs: 50 Prefixes from 32-bit ASNs in the Routing Table: 8 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 778 Number of addresses announced to Internet: 1894510496 Equivalent to 112 /8s, 235 /16s and 239 /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: 72.7 Total number of prefixes smaller than registry allocations: 128645 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 60485 Total APNIC prefixes after maximum aggregation: 22626 APNIC Deaggregation factor: 2.67 Prefixes being announced from the APNIC address blocks: 57467 Unique aggregates announced from the APNIC address blocks: 25516 APNIC Region origin ASes present in the Internet Routing Table: 3307 APNIC Prefixes per ASN: 17.38 APNIC Region origin ASes announcing only one prefix: 882 APNIC Region transit ASes present in the Internet Routing Table: 518 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 19 Number of APNIC addresses announced to Internet: 368124960 Equivalent to 21 /8s, 241 /16s and 36 /24s Percentage of available APNIC address space announced: 78.4 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: 121119 Total ARIN prefixes after maximum aggregation: 65323 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 90675 Unique aggregates announced from the ARIN address blocks: 35130 ARIN Region origin ASes present in the Internet Routing Table: 12293 ARIN Prefixes per ASN: 7.38 ARIN Region origin ASes announcing only one prefix: 4747 ARIN Region transit ASes present in the Internet Routing Table: 1155 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 15 Number of ARIN addresses announced to Internet: 352742688 Equivalent to 21 /8s, 6 /16s and 109 /24s Percentage of available ARIN address space announced: 72.5 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 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: 56703 Total RIPE prefixes after maximum aggregation: 34477 RIPE Deaggregation factor: 1.64 Prefixes being announced from the RIPE address blocks: 51898 Unique aggregates announced from the RIPE address blocks: 34879 RIPE Region origin ASes present in the Internet Routing Table: 11614 RIPE Prefixes per ASN: 4.47 RIPE Region origin ASes announcing only one prefix: 6089 RIPE Region transit ASes present in the Internet Routing Table: 1740 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 366805568 Equivalent to 21 /8s, 221 /16s and 2 /24s Percentage of available RIPE address space announced: 84.1 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, 47104-48127 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: 20673 Total LACNIC prefixes after maximum aggregation: 5279 LACNIC Deaggregation factor: 3.92 Prefixes being announced from the LACNIC address blocks: 18896 Unique aggregates announced from the LACNIC address blocks: 10693 LACNIC Region origin ASes present in the Internet Routing Table: 966 LACNIC Prefixes per ASN: 19.56 LACNIC Region origin ASes announcing only one prefix: 316 LACNIC Region transit ASes present in the Internet Routing Table: 162 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 18 Number of LACNIC addresses announced to Internet: 53626880 Equivalent to 3 /8s, 50 /16s and 72 /24s Percentage of available LACNIC address space announced: 53.3 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: 4008 Total AfriNIC prefixes after maximum aggregation: 1190 AfriNIC Deaggregation factor: 3.37 Prefixes being announced from the AfriNIC address blocks: 4300 Unique aggregates announced from the AfriNIC address blocks: 1895 AfriNIC Region origin ASes present in the Internet Routing Table: 241 AfriNIC Prefixes per ASN: 17.84 AfriNIC Region origin ASes announcing only one prefix: 75 AfriNIC Region transit ASes present in the Internet Routing Table: 47 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 12311296 Equivalent to 0 /8s, 187 /16s and 219 /24s Percentage of available AfriNIC address space announced: 36.7 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 1671 342 176 Videsh Sanchar Nigam Ltd. Aut 17488 1219 84 96 Hathway IP Over Cable Interne 9583 1170 89 481 Sify Limited 4766 852 6390 347 Korea Telecom (KIX) 23577 829 35 703 Korea Telecom (ATM-MPLS) 4134 824 13539 334 CHINANET-BACKBONE 9498 711 547 58 BHARTI BT INTERNET LTD. 4780 707 351 63 Digital United Inc. 18101 690 167 32 Reliance Infocom Ltd Internet 4808 617 1111 137 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 209 3008 3859 625 Qwest 6389 2662 3260 195 bellsouth.net, inc. 6298 1606 233 782 Cox Communicatons 4323 1482 1061 379 Time Warner Telecom 2386 1477 646 873 AT&T Data Communications Serv 7018 1415 6247 988 AT&T WorldNet Services 11492 1210 149 32 Cable One 1785 1087 510 104 AppliedTheory Corporation 18566 1045 296 10 Covad Communications 20115 1041 1059 558 Charter Communications 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 1792 372 TDC Tele Danmark 3301 332 1460 303 TeliaNet Sweden 3320 322 7047 270 Deutsche Telekom AG 8452 319 188 11 TEDATA 8866 317 77 21 Bulgarian Telecommunication C 5462 296 666 27 Telewest Broadband 8551 287 269 38 Bezeq International 3215 286 2758 90 France Telecom Transpac 680 274 2047 264 DFN-IP service G-WiN 6746 269 126 244 Dynamic Network Technologies, 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 1384 2590 225 UniNet S.A. de C.V. 11830 612 299 9 Instituto Costarricense de El 22047 565 270 14 VTR PUNTO NET S.A. 7303 471 232 63 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 6471 414 85 48 ENTEL CHILE S.A. 11172 408 118 71 Servicios Alestra S.A de C.V 10620 406 106 64 TVCABLE BOGOTA 14117 375 23 9 Telefonica del Sur S.A. 20299 335 23 98 NEWCOM AMERICAS 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 476 61 24 LINKdotNET AS number 20858 398 34 3 EgyNet 3741 270 853 225 The Internet Solution 2018 209 204 102 Tertiary Education Network 6713 143 135 11 Itissalat Al-MAGHRIB 33783 135 10 12 EEPAD TISP TELECOM & INTERNET 5713 130 556 75 Telkom SA Ltd 5536 120 8 17 Internet Egypt Network 29571 107 13 8 Ci Telecom Autonomous system 33776 99 6 7 Starcomms Nigeria Limited 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 209 3008 3859 625 Qwest 6389 2662 3260 195 bellsouth.net, inc. 4755 1671 342 176 Videsh Sanchar Nigam Ltd. Aut 6298 1606 233 782 Cox Communicatons 4323 1482 1061 379 Time Warner Telecom 2386 1477 646 873 AT&T Data Communications Serv 7018 1415 6247 988 AT&T WorldNet Services 8151 1384 2590 225 UniNet S.A. de C.V. 17488 1219 84 96 Hathway IP Over Cable Interne 11492 1210 149 32 Cable One Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 6389 2662 2467 bellsouth.net, inc. 4755 1671 1495 Videsh Sanchar Nigam Ltd. Aut 11492 1210 1178 Cable One 8151 1384 1159 UniNet S.A. de C.V. 17488 1219 1123 Hathway IP Over Cable Interne 4323 1482 1103 Time Warner Telecom 18566 1045 1035 Covad Communications 1785 1087 983 AppliedTheory Corporation 22773 971 907 Cox Communications, Inc. 6478 1003 835 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 27220 UNALLOCATED 12.35.204.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.48.244.0/23 7843 Adelphia Corp. 24.51.159.0/24 7843 Adelphia Corp. 24.54.23.0/24 7843 Adelphia Corp. 24.54.224.0/19 20001 HoldCo LLC - Road Runner 24.75.160.0/19 7843 Adelphia Corp. 24.75.192.0/18 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 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 /8:19 /9:9 /10:16 /11:45 /12:146 /13:287 /14:517 /15:1041 /16:10011 /17:4336 /18:7517 /19:15887 /20:18525 /21:18193 /22:22730 /23:23637 /24:137913 /25:837 /26:1030 /27:778 /28:82 /29:7 /30:1 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 209 1760 3008 Qwest 6389 1664 2662 bellsouth.net, inc. 6298 1582 1606 Cox Communicatons 11492 1194 1210 Cable One 2386 1174 1477 AT&T Data Communications Serv 17488 1033 1219 Hathway IP Over Cable Interne 18566 1026 1045 Covad Communications 9583 1025 1170 Sify Limited 4755 1023 1671 Videsh Sanchar Nigam Ltd. Aut 6478 994 1003 AT&T Worldnet Services Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:7 8:125 12:2091 13:2 15:22 16:3 17:5 18:13 20:35 24:1092 25:1 32:61 38:450 40:92 41:657 43:1 44:2 47:12 52:3 55:3 56:3 57:25 58:524 59:507 60:452 61:1009 62:1206 63:2031 64:3288 65:2386 66:3509 67:1229 68:735 69:2266 70:799 71:118 72:1961 73:5 74:1064 75:155 76:315 77:749 78:748 79:203 80:934 81:840 82:592 83:377 84:559 85:960 86:413 87:687 88:338 89:1316 90:15 91:1386 92:224 93:691 94:56 96:40 97:31 98:253 99:2 112:1 113:1 114:90 115:3 116:843 117:320 118:190 119:440 120:59 121:562 122:796 123:363 124:890 125:1168 128:361 129:199 130:132 131:410 132:66 133:9 134:186 135:33 136:223 137:91 138:147 139:94 140:493 141:98 142:406 143:325 144:384 145:51 146:366 147:157 148:517 149:198 150:129 151:180 152:144 153:136 154:10 155:251 156:174 157:291 158:187 159:239 160:279 161:118 162:210 163:154 164:525 165:452 166:318 167:330 168:621 169:138 170:423 171:32 172:10 188:1 189:287 190:2206 192:5798 193:4095 194:3231 195:2525 196:1042 198:3734 199:3270 200:5566 201:1462 202:7639 203:8045 204:3987 205:2132 206:2383 207:2762 208:3422 209:3510 210:2592 211:1074 212:1411 213:1610 214:164 215:49 216:4426 217:1195 218:343 219:421 220:1059 221:465 222:306 End of report