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 09 Feb, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 245014 Prefixes after maximum aggregation: 125074 Deaggregation factor: 1.96 Unique aggregates announced to Internet: 119835 Total ASes present in the Internet Routing Table: 27319 Prefixes per ASN: 8.97 Origin-only ASes present in the Internet Routing Table: 23819 Origin ASes announcing only one prefix: 11581 Transit ASes present in the Internet Routing Table: 3500 Transit-only ASes present in the Internet Routing Table: 75 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 24 Max AS path prepend of ASN (31609) 21 Prefixes from unregistered ASNs in the Routing Table: 40 Unregistered ASNs in the Routing Table: 15 Number of 32-bit ASNs allocated by the RIRs: 46 Prefixes from 32-bit ASNs in the Routing Table: 9 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 872 Number of addresses announced to Internet: 1828805344 Equivalent to 109 /8s, 1 /16s and 90 /24s Percentage of available address space announced: 49.3 Percentage of allocated address space announced: 61.3 Percentage of available address space allocated: 80.5 Percentage of address space in use by end-sites: 70.0 Total number of prefixes smaller than registry allocations: 115802 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 56179 Total APNIC prefixes after maximum aggregation: 21117 APNIC Deaggregation factor: 2.66 Prefixes being announced from the APNIC address blocks: 53680 Unique aggregates announced from the APNIC address blocks: 23760 APNIC Region origin ASes present in the Internet Routing Table: 3119 APNIC Prefixes per ASN: 17.21 APNIC Region origin ASes announcing only one prefix: 823 APNIC Region transit ASes present in the Internet Routing Table: 470 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 329179296 Equivalent to 19 /8s, 158 /16s and 224 /24s Percentage of available APNIC address space announced: 75.5 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, 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: 115208 Total ARIN prefixes after maximum aggregation: 65527 ARIN Deaggregation factor: 1.76 Prefixes being announced from the ARIN address blocks: 84084 Unique aggregates announced from the ARIN address blocks: 33462 ARIN Region origin ASes present in the Internet Routing Table: 12125 ARIN Prefixes per ASN: 6.93 ARIN Region origin ASes announcing only one prefix: 4684 ARIN Region transit ASes present in the Internet Routing Table: 1146 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 15 Number of ARIN addresses announced to Internet: 356776320 Equivalent to 21 /8s, 67 /16s and 249 /24s Percentage of available ARIN address space announced: 78.8 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 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, 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: 51860 Total RIPE prefixes after maximum aggregation: 32618 RIPE Deaggregation factor: 1.59 Prefixes being announced from the RIPE address blocks: 47058 Unique aggregates announced from the RIPE address blocks: 31591 RIPE Region origin ASes present in the Internet Routing Table: 10876 RIPE Prefixes per ASN: 4.33 RIPE Region origin ASes announcing only one prefix: 5704 RIPE Region transit ASes present in the Internet Routing Table: 1661 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 24 Number of RIPE addresses announced to Internet: 340444928 Equivalent to 20 /8s, 74 /16s and 199 /24s Percentage of available RIPE address space announced: 78.0 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 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: 18567 Total LACNIC prefixes after maximum aggregation: 4689 LACNIC Deaggregation factor: 3.96 Prefixes being announced from the LACNIC address blocks: 16941 Unique aggregates announced from the LACNIC address blocks: 9256 LACNIC Region origin ASes present in the Internet Routing Table: 898 LACNIC Prefixes per ASN: 18.87 LACNIC Region origin ASes announcing only one prefix: 295 LACNIC Region transit ASes present in the Internet Routing Table: 150 Average LACNIC Region AS path length visible: 3.9 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 48076288 Equivalent to 2 /8s, 221 /16s and 150 /24s Percentage of available LACNIC address space announced: 47.8 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: 3170 Total AfriNIC prefixes after maximum aggregation: 1105 AfriNIC Deaggregation factor: 2.87 Prefixes being announced from the AfriNIC address blocks: 3558 Unique aggregates announced from the AfriNIC address blocks: 1770 AfriNIC Region origin ASes present in the Internet Routing Table: 225 AfriNIC Prefixes per ASN: 15.81 AfriNIC Region origin ASes announcing only one prefix: 75 AfriNIC Region transit ASes present in the Internet Routing Table: 40 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 9980928 Equivalent to 0 /8s, 152 /16s and 76 /24s Percentage of available AfriNIC address space announced: 29.7 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 1572 385 78 Videsh Sanchar Nigam Ltd. Aut 9498 1153 549 61 BHARTI BT INTERNET LTD. 9583 1124 83 438 Sify Limited 17488 964 60 86 Hathway IP Over Cable Interne 4134 863 11881 311 CHINANET-BACKBONE 4766 849 5495 342 Korea Telecom (KIX) 23577 817 34 695 Korea Telecom (ATM-MPLS) 18101 688 128 65 Reliance Infocom Ltd Internet 9829 592 449 11 BSNL National Internet Backbo 1221 553 1953 427 Telstra Pty Ltd 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 7018 1419 6003 988 AT&T WorldNet Services 4323 1388 1012 366 Time Warner Telecom 2386 1360 634 834 AT&T Data Communications Serv 11492 1212 137 14 Cable One 7011 1050 304 605 Citizens Utilities 18566 1041 296 10 Covad Communications 6197 1034 754 511 BellSouth Network Solutions, 174 976 6835 815 Cogent Communications 6478 911 235 106 AT&T Worldnet Services 701 894 6575 684 UUNET Technologies, Inc. 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 397 1778 360 TDC Tele Danmark 8452 358 188 7 TEDATA 3301 332 1458 303 TeliaNet Sweden 3320 325 6022 269 Deutsche Telekom AG 8866 281 78 24 Bulgarian Telecommunication C 8551 279 267 42 Bezeq International 680 275 2046 256 DFN-IP service G-WiN 8708 272 420 242 Romania Data Systems S.A. 3215 271 2591 93 France Telecom Transpac 6746 268 128 246 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 1163 2422 217 UniNet S.A. de C.V. 11830 555 299 9 Instituto Costarricense de El 7303 438 213 59 Telecom Argentina Stet-France 16814 428 27 11 NSS, S.A. 11172 395 115 63 Servicios Alestra S.A de C.V 6471 394 85 39 ENTEL CHILE S.A. 10620 358 94 32 TVCABLE BOGOTA 14117 351 23 16 Telefonica del Sur S.A. 22047 323 270 14 VTR PUNTO NET S.A. 10481 301 120 10 Prima 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 422 60 30 LINKdotNET AS number 3741 283 869 225 The Internet Solution 2018 146 268 115 Tertiary Education Network 6713 143 135 11 Itissalat Al-MAGHRIB 33783 129 9 15 EEPAD TISP TELECOM & INTERNET 5536 120 8 16 Internet Egypt Network 33776 99 6 7 Starcomms Nigeria Limited 20858 96 34 3 EgyNet 29571 80 13 7 Ci Telecom Autonomous system 2905 78 176 74 The Internetworking Company o 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 4755 1572 385 78 Videsh Sanchar Nigam Ltd. Aut 7018 1419 6003 988 AT&T WorldNet Services 4323 1388 1012 366 Time Warner Telecom 2386 1360 634 834 AT&T Data Communications Serv 11492 1212 137 14 Cable One 8151 1163 2422 217 UniNet S.A. de C.V. 9498 1153 549 61 BHARTI BT INTERNET LTD. 9583 1124 83 438 Sify Limited 7011 1050 304 605 Citizens Utilities 18566 1041 296 10 Covad Communications Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 11492 1212 1198 Cable One 9498 1153 1092 BHARTI BT INTERNET LTD. 18566 1041 1031 Covad Communications 4323 1388 1022 Time Warner Telecom 8151 1163 946 UniNet S.A. de C.V. 17488 964 878 Hathway IP Over Cable Interne 6478 911 805 AT&T Worldnet Services 22773 847 789 Cox Communications, Inc. 19262 879 731 Verizon Global Networks 9583 1124 686 Sify Limited Complete listing at http://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 15190 UNALLOCATED 63.98.176.0/24 701 UUNET Technologies, 18506 UNALLOCATED 63.107.123.0/24 33286 Turlock Irrigation D 16886 UNALLOCATED 63.109.3.0/24 1239 Sprint 16886 UNALLOCATED 63.167.139.0/24 1239 Sprint 14699 UNALLOCATED 63.238.252.0/24 30517 Great Lakes Comnet, 14699 UNALLOCATED 63.238.253.0/24 30517 Great Lakes Comnet, 14699 UNALLOCATED 64.85.144.0/22 30517 Great Lakes Comnet, 33526 UNALLOCATED 64.128.26.0/24 4323 Time Warner Telecom 14699 UNALLOCATED 65.112.79.0/24 30517 Great Lakes Comnet, 21624 UNALLOCATED 65.163.176.0/24 701 UUNET Technologies, Complete listing at http://thyme.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.48.10.0/23 19548 Adelphia Business Solutions 24.48.12.0/22 19548 Adelphia Business Solutions 24.48.80.0/21 19548 Adelphia Business Solutions 24.54.224.0/19 20001 HoldCo LLC - Road Runner 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 60.253.0.0/18 27572 Connexion by Boeing 60.253.64.0/19 27572 Connexion by Boeing 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 /10:15 /11:39 /12:137 /13:279 /14:493 /15:984 /16:9764 /17:4234 /18:7056 /19:15026 /20:17243 /21:16277 /22:20610 /23:21748 /24:128423 /25:870 /26:1098 /27:564 /28:108 /29:9 /30:1 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 11492 1200 1212 Cable One 2386 1059 1360 AT&T Data Communications Serv 18566 1022 1041 Covad Communications 9583 971 1124 Sify Limited 7011 934 1050 Citizens Utilities 4755 933 1572 Videsh Sanchar Nigam Ltd. Aut 6478 910 911 AT&T Worldnet Services 9498 826 1153 BHARTI BT INTERNET LTD. 23577 808 817 Korea Telecom (ATM-MPLS) 17488 780 964 Hathway IP Over Cable Interne Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:9 8:100 12:1961 13:2 15:21 16:3 17:6 18:13 20:35 22:1 24:1024 25:1 32:61 33:4 38:385 40:65 41:572 44:2 47:8 52:3 55:3 56:3 57:22 58:517 59:425 60:407 61:982 62:1022 63:1974 64:3354 65:2364 66:3652 67:1102 68:639 69:2087 70:474 71:107 72:1487 73:7 74:819 75:169 76:240 77:538 78:451 79:76 80:872 81:792 82:574 83:357 84:477 85:1018 86:378 87:646 88:307 89:1101 90:44 91:981 92:121 93:62 95:1 96:10 97:10 98:45 99:2 114:1 115:1 116:509 117:244 118:67 119:122 121:434 122:692 123:272 124:796 125:1115 128:308 129:199 130:132 131:396 132:66 133:9 134:188 135:37 136:217 137:117 138:156 139:62 140:495 141:106 142:378 143:273 144:319 145:52 146:337 147:132 148:483 149:176 150:121 151:140 152:95 153:131 154:11 155:289 156:198 157:250 158:164 159:215 160:229 161:102 162:201 163:193 164:561 165:423 166:294 167:309 168:577 169:133 170:432 171:28 172:3 189:151 190:1363 192:5773 193:4100 194:3236 195:2331 196:942 198:3701 199:3200 200:5442 201:1270 202:7543 203:7813 204:3962 205:2070 206:2344 207:2721 208:3150 209:3615 210:2523 211:1034 212:1274 213:1574 214:448 215:47 216:4139 217:1155 218:339 219:401 220:1060 221:411 222:306 End of report