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 01 Mar, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 247820 Prefixes after maximum aggregation: 125222 Deaggregation factor: 1.98 Unique aggregates announced to Internet: 119811 Total ASes present in the Internet Routing Table: 27500 Prefixes per ASN: 9.01 Origin-only ASes present in the Internet Routing Table: 23968 Origin ASes announcing only one prefix: 11633 Transit ASes present in the Internet Routing Table: 3532 Transit-only ASes present in the Internet Routing Table: 73 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 19 Max AS path prepend of ASN (43380) 13 Prefixes from unregistered ASNs in the Routing Table: 40 Unregistered ASNs in the Routing Table: 13 Number of 32-bit ASNs allocated by the RIRs: 45 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: 880 Number of addresses announced to Internet: 1856621888 Equivalent to 110 /8s, 169 /16s and 205 /24s Percentage of available address space announced: 50.1 Percentage of allocated address space announced: 61.5 Percentage of available address space allocated: 81.4 Percentage of address space in use by end-sites: 70.7 Total number of prefixes smaller than registry allocations: 117515 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 56616 Total APNIC prefixes after maximum aggregation: 20833 APNIC Deaggregation factor: 2.72 Prefixes being announced from the APNIC address blocks: 54100 Unique aggregates announced from the APNIC address blocks: 22940 APNIC Region origin ASes present in the Internet Routing Table: 3136 APNIC Prefixes per ASN: 17.25 APNIC Region origin ASes announcing only one prefix: 829 APNIC Region transit ASes present in the Internet Routing Table: 484 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 334493120 Equivalent to 19 /8s, 239 /16s and 245 /24s Percentage of available APNIC address space announced: 76.7 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, 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: 116201 Total ARIN prefixes after maximum aggregation: 65550 ARIN Deaggregation factor: 1.77 Prefixes being announced from the ARIN address blocks: 84871 Unique aggregates announced from the ARIN address blocks: 33344 ARIN Region origin ASes present in the Internet Routing Table: 12180 ARIN Prefixes per ASN: 6.97 ARIN Region origin ASes announcing only one prefix: 4702 ARIN Region transit ASes present in the Internet Routing Table: 1145 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 15 Number of ARIN addresses announced to Internet: 356351360 Equivalent to 21 /8s, 61 /16s and 125 /24s Percentage of available ARIN address space announced: 73.2 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 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: 52569 Total RIPE prefixes after maximum aggregation: 32936 RIPE Deaggregation factor: 1.60 Prefixes being announced from the RIPE address blocks: 47679 Unique aggregates announced from the RIPE address blocks: 32111 RIPE Region origin ASes present in the Internet Routing Table: 10970 RIPE Prefixes per ASN: 4.35 RIPE Region origin ASes announcing only one prefix: 5727 RIPE Region transit ASes present in the Internet Routing Table: 1673 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 346859264 Equivalent to 20 /8s, 172 /16s and 167 /24s Percentage of available RIPE address space announced: 79.5 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: 18826 Total LACNIC prefixes after maximum aggregation: 4763 LACNIC Deaggregation factor: 3.95 Prefixes being announced from the LACNIC address blocks: 17209 Unique aggregates announced from the LACNIC address blocks: 9367 LACNIC Region origin ASes present in the Internet Routing Table: 910 LACNIC Prefixes per ASN: 18.91 LACNIC Region origin ASes announcing only one prefix: 300 LACNIC Region transit ASes present in the Internet Routing Table: 155 Average LACNIC Region AS path length visible: 3.9 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 48766464 Equivalent to 2 /8s, 232 /16s and 30 /24s Percentage of available LACNIC address space announced: 48.4 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: 3565 Total AfriNIC prefixes after maximum aggregation: 1124 AfriNIC Deaggregation factor: 3.17 Prefixes being announced from the AfriNIC address blocks: 4000 Unique aggregates announced from the AfriNIC address blocks: 1807 AfriNIC Region origin ASes present in the Internet Routing Table: 230 AfriNIC Prefixes per ASN: 17.39 AfriNIC Region origin ASes announcing only one prefix: 75 AfriNIC Region transit ASes present in the Internet Routing Table: 44 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 10019328 Equivalent to 0 /8s, 152 /16s and 226 /24s Percentage of available AfriNIC address space announced: 29.9 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 1586 386 81 Videsh Sanchar Nigam Ltd. Aut 9583 1152 109 24 Sify Limited 9498 1145 550 63 BHARTI BT INTERNET LTD. 17488 992 64 89 Hathway IP Over Cable Interne 4134 853 12363 314 CHINANET-BACKBONE 4766 843 6005 338 Korea Telecom (KIX) 23577 812 34 696 Korea Telecom (ATM-MPLS) 18101 709 127 62 Reliance Infocom Ltd Internet 9829 595 449 11 BSNL National Internet Backbo 4812 558 949 89 China Telecom (Shanghai) 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 1421 5990 985 AT&T WorldNet Services 4323 1381 1011 366 Time Warner Telecom 2386 1379 638 839 AT&T Data Communications Serv 11492 1211 144 26 Cable One 7011 1059 308 611 Citizens Utilities 18566 1042 296 10 Covad Communications 6197 995 729 475 BellSouth Network Solutions, 174 987 6835 816 Cogent Communications 6478 929 237 113 AT&T Worldnet Services 20115 890 810 486 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 398 1778 363 TDC Tele Danmark 8452 395 188 7 TEDATA 3301 336 1443 306 TeliaNet Sweden 3320 325 7045 269 Deutsche Telekom AG 8866 291 78 24 Bulgarian Telecommunication C 8551 279 267 42 Bezeq International 680 276 2046 256 DFN-IP service G-WiN 5462 275 666 26 Telewest Broadband 8708 275 421 245 Romania Data Systems S.A. 3215 271 2607 94 France Telecom Transpac 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 1171 2437 220 UniNet S.A. de C.V. 11830 555 299 9 Instituto Costarricense de El 7303 446 216 57 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 11172 400 115 66 Servicios Alestra S.A de C.V 6471 399 85 40 ENTEL CHILE S.A. 10620 366 96 49 TVCABLE BOGOTA 14117 352 25 15 Telefonica del Sur S.A. 10481 330 124 10 Prima S.A. 22047 323 270 14 VTR PUNTO NET 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 444 60 27 LINKdotNET AS number 3741 288 869 224 The Internet Solution 2018 246 276 111 Tertiary Education Network 20858 217 34 4 EgyNet 6713 143 135 11 Itissalat Al-MAGHRIB 33783 130 9 16 EEPAD TISP TELECOM & INTERNET 5536 121 8 16 Internet Egypt Network 33776 99 6 7 Starcomms Nigeria Limited 24835 90 48 7 RAYA Telecom - Egypt 29571 80 13 7 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 4755 1586 386 81 Videsh Sanchar Nigam Ltd. Aut 7018 1421 5990 985 AT&T WorldNet Services 4323 1381 1011 366 Time Warner Telecom 2386 1379 638 839 AT&T Data Communications Serv 11492 1211 144 26 Cable One 8151 1171 2437 220 UniNet S.A. de C.V. 9583 1152 109 24 Sify Limited 9498 1145 550 63 BHARTI BT INTERNET LTD. 7011 1059 308 611 Citizens Utilities 18566 1042 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 1211 1185 Cable One 9583 1152 1128 Sify Limited 9498 1145 1082 BHARTI BT INTERNET LTD. 18566 1042 1032 Covad Communications 4323 1381 1015 Time Warner Telecom 8151 1171 951 UniNet S.A. de C.V. 17488 992 903 Hathway IP Over Cable Interne 22773 882 817 Cox Communications, Inc. 6478 929 816 AT&T Worldnet Services 6389 886 802 bellsouth.net, inc. Complete listing at http://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 18506 UNALLOCATED 63.107.123.0/24 701 UUNET Technologies, 16886 UNALLOCATED 63.109.3.0/24 1239 Sprint 16886 UNALLOCATED 63.167.139.0/24 1239 Sprint 33526 UNALLOCATED 64.128.26.0/24 4323 Time Warner Telecom 65000 PRIVATE 78.108.160.0/24 39010 TerraNet sal 65000 PRIVATE 78.108.163.0/24 39010 TerraNet sal 65000 PRIVATE 78.108.164.0/24 39010 TerraNet sal 65000 PRIVATE 92.62.240.0/20 24750 Cable Internet Syste 64601 PRIVATE 118.232.77.0/24 9924 Taiwan Fixed Network 64601 PRIVATE 118.232.78.0/24 9924 Taiwan Fixed Network 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 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 63.140.213.0/24 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 /8:20 /9:9 /10:16 /11:39 /12:138 /13:276 /14:496 /15:988 /16:9764 /17:4262 /18:7157 /19:15189 /20:17339 /21:16533 /22:20938 /23:22066 /24:129885 /25:892 /26:1119 /27:568 /28:108 /29:9 /30:1 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 11492 1198 1211 Cable One 2386 1085 1379 AT&T Data Communications Serv 18566 1023 1042 Covad Communications 9583 988 1152 Sify Limited 7011 942 1059 Citizens Utilities 4755 937 1586 Videsh Sanchar Nigam Ltd. Aut 6478 928 929 AT&T Worldnet Services 9498 809 1145 BHARTI BT INTERNET LTD. 17488 807 992 Hathway IP Over Cable Interne 23577 803 812 Korea Telecom (ATM-MPLS) Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:9 8:101 12:1989 13:2 15:21 16:3 17:6 18:13 20:35 24:1032 25:1 31:1 32:61 33:4 38:396 40:65 41:613 44:2 47:8 52:3 55:3 56:3 57:22 58:521 59:427 60:407 61:984 62:1088 63:1958 64:3366 65:2378 66:3661 67:1146 68:632 69:2121 70:487 71:123 72:1483 73:6 74:852 75:236 76:257 77:565 78:503 79:86 80:886 81:815 82:596 83:354 84:532 85:987 86:388 87:625 88:299 89:1175 90:12 91:1052 92:138 93:95 95:2 96:16 97:14 98:86 99:3 114:1 115:1 116:530 117:272 118:77 119:160 121:402 122:712 123:294 124:812 125:1102 128:321 129:199 130:132 131:400 132:67 133:9 134:188 135:37 136:221 137:118 138:153 139:63 140:486 141:108 142:377 143:271 144:338 145:53 146:336 147:131 148:481 149:178 150:124 151:149 152:92 153:131 154:11 155:267 156:202 157:250 158:164 159:218 160:249 161:101 162:204 163:195 164:561 165:426 166:295 167:308 168:588 169:133 170:425 171:28 172:3 189:159 190:1406 192:5762 193:4104 194:3260 195:2334 196:1081 198:3790 199:3197 200:5467 201:1297 202:7566 203:7792 204:3967 205:2080 206:2402 207:2728 208:3174 209:3561 210:2539 211:1031 212:1293 213:1582 214:446 215:48 216:4161 217:1202 218:338 219:399 220:1098 221:403 222:309 End of report