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 10 May, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 255385 Prefixes after maximum aggregation: 127091 Deaggregation factor: 2.01 Unique aggregates announced to Internet: 123930 Total ASes present in the Internet Routing Table: 28142 Prefixes per ASN: 9.07 Origin-only ASes present in the Internet Routing Table: 24541 Origin ASes announcing only one prefix: 11411 Transit ASes present in the Internet Routing Table: 3601 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: 18 Max AS path prepend of ASN (44859) 15 Prefixes from unregistered ASNs in the Routing Table: 25412 Unregistered ASNs in the Routing Table: 1885 Number of 32-bit ASNs allocated by the RIRs: 46 Prefixes from 32-bit ASNs in the Routing Table: 10 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 789 Number of addresses announced to Internet: 1849281216 Equivalent to 110 /8s, 57 /16s and 202 /24s Percentage of available address space announced: 49.9 Percentage of allocated address space announced: 61.3 Percentage of available address space allocated: 81.4 Percentage of address space in use by end-sites: 71.7 Total number of prefixes smaller than registry allocations: 122983 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 43145 Total APNIC prefixes after maximum aggregation: 13462 APNIC Deaggregation factor: 3.20 Prefixes being announced from the APNIC address blocks: 55558 Unique aggregates announced from the APNIC address blocks: 23715 APNIC Region origin ASes present in the Internet Routing Table: 1932 APNIC Prefixes per ASN: 28.76 APNIC Region origin ASes announcing only one prefix: 544 APNIC Region transit ASes present in the Internet Routing Table: 346 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 14 Number of APNIC addresses announced to Internet: 347251424 Equivalent to 20 /8s, 178 /16s and 162 /24s Percentage of available APNIC address space announced: 79.6 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: 107798 Total ARIN prefixes after maximum aggregation: 59250 ARIN Deaggregation factor: 1.82 Prefixes being announced from the ARIN address blocks: 86847 Unique aggregates announced from the ARIN address blocks: 34386 ARIN Region origin ASes present in the Internet Routing Table: 11802 ARIN Prefixes per ASN: 7.36 ARIN Region origin ASes announcing only one prefix: 4607 ARIN Region transit ASes present in the Internet Routing Table: 1037 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 358258080 Equivalent to 21 /8s, 90 /16s and 149 /24s Percentage of available ARIN address space announced: 73.6 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: 55300 Total RIPE prefixes after maximum aggregation: 33687 RIPE Deaggregation factor: 1.64 Prefixes being announced from the RIPE address blocks: 50506 Unique aggregates announced from the RIPE address blocks: 33769 RIPE Region origin ASes present in the Internet Routing Table: 11311 RIPE Prefixes per ASN: 4.47 RIPE Region origin ASes announcing only one prefix: 5905 RIPE Region transit ASes present in the Internet Routing Table: 1720 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 356375680 Equivalent to 21 /8s, 61 /16s and 220 /24s Percentage of available RIPE address space announced: 81.7 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: 19926 Total LACNIC prefixes after maximum aggregation: 4988 LACNIC Deaggregation factor: 3.99 Prefixes being announced from the LACNIC address blocks: 18385 Unique aggregates announced from the LACNIC address blocks: 9882 LACNIC Region origin ASes present in the Internet Routing Table: 898 LACNIC Prefixes per ASN: 20.47 LACNIC Region origin ASes announcing only one prefix: 278 LACNIC Region transit ASes present in the Internet Routing Table: 153 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 17 Number of LACNIC addresses announced to Internet: 51034112 Equivalent to 3 /8s, 10 /16s and 184 /24s Percentage of available LACNIC address space announced: 50.7 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: 3803 Total AfriNIC prefixes after maximum aggregation: 1177 AfriNIC Deaggregation factor: 3.23 Prefixes being announced from the AfriNIC address blocks: 4161 Unique aggregates announced from the AfriNIC address blocks: 1849 AfriNIC Region origin ASes present in the Internet Routing Table: 240 AfriNIC Prefixes per ASN: 17.34 AfriNIC Region origin ASes announcing only one prefix: 77 AfriNIC Region transit ASes present in the Internet Routing Table: 49 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 12183552 Equivalent to 0 /8s, 185 /16s and 232 /24s Percentage of available AfriNIC address space announced: 36.3 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 1633 387 91 Videsh Sanchar Nigam Ltd. Aut 9583 1180 140 15 Sify Limited 9498 1171 550 61 BHARTI BT INTERNET LTD. 17488 1063 70 82 Hathway IP Over Cable Interne 4134 853 12613 317 CHINANET-BACKBONE 4766 848 6006 343 Korea Telecom (KIX) 18101 678 149 53 Reliance Infocom Ltd Internet 9829 598 450 12 BSNL National Internet Backbo 1221 548 1919 421 Telstra Pty Ltd 4808 520 837 132 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 4323 1424 1014 378 Time Warner Telecom 2386 1400 643 866 AT&T Data Communications Serv 7018 1399 5976 995 AT&T WorldNet Services 11492 1212 146 33 Cable One 7011 1095 319 624 Citizens Utilities 18566 1044 296 10 Covad Communications 6197 1028 630 543 BellSouth Network Solutions, 1785 1018 511 106 AppliedTheory Corporation 174 974 6836 803 Cogent Communications 22773 950 2394 62 Cox Communications, 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 9198 428 74 9 Kazakhtelecom Data Network Ad 3292 409 1788 369 TDC Tele Danmark 8452 356 188 7 TEDATA 3301 338 1458 306 TeliaNet Sweden 3320 324 7044 267 Deutsche Telekom AG 8866 298 78 24 Bulgarian Telecommunication C 5462 292 666 26 Telewest Broadband 8551 282 269 37 Bezeq International 3215 278 2686 90 France Telecom Transpac 680 272 2047 262 DFN-IP service G-WiN 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 1201 2432 227 UniNet S.A. de C.V. 11830 600 299 14 Instituto Costarricense de El 22047 566 270 14 VTR PUNTO NET S.A. 7303 456 223 62 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 6471 416 85 46 ENTEL CHILE S.A. 11172 413 117 69 Servicios Alestra S.A de C.V 10620 390 99 69 TVCABLE BOGOTA 14117 375 23 9 Telefonica del Sur S.A. 20299 343 36 31 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 463 61 27 LINKdotNET AS number 3741 289 853 223 The Internet Solution 20858 220 34 3 EgyNet 5713 172 575 108 Telkom SA Ltd 6713 143 135 11 Itissalat Al-MAGHRIB 2018 136 140 68 Tertiary Education Network 33783 134 10 12 EEPAD TISP TELECOM & INTERNET 5536 121 8 16 Internet Egypt Network 29571 116 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 6389 3098 3037 123 bellsouth.net, inc. 23577 1642 34 701 Korea Telecom (ATM-MPLS) 4755 1633 387 91 Videsh Sanchar Nigam Ltd. Aut 4323 1424 1014 378 Time Warner Telecom 2386 1400 643 866 AT&T Data Communications Serv 7018 1399 5976 995 AT&T WorldNet Services 11492 1212 146 33 Cable One 8151 1201 2432 227 UniNet S.A. de C.V. 9583 1180 140 15 Sify Limited 9498 1171 550 61 BHARTI BT INTERNET LTD. Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4755 1633 1542 Videsh Sanchar Nigam Ltd. Aut 11492 1212 1179 Cable One 9583 1180 1165 Sify Limited 9498 1171 1110 BHARTI BT INTERNET LTD. 4323 1424 1046 Time Warner Telecom 18566 1044 1034 Covad Communications 17488 1063 981 Hathway IP Over Cable Interne 8151 1201 974 UniNet S.A. de C.V. 17676 1016 951 Softbank BB Corp. 23577 1642 941 Korea Telecom (ATM-MPLS) Complete listing at http://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 14780 UNALLOCATED 4.79.181.0/24 10310 Yahoo! 12180 UNALLOCATED 4.79.248.0/24 1239 Sprint 12180 UNALLOCATED 8.10.16.0/24 3549 Global Crossing 12180 UNALLOCATED 8.10.58.0/23 3549 Global Crossing 14779 UNALLOCATED 8.12.144.0/24 10310 Yahoo! 16927 UNALLOCATED 12.0.252.0/23 701 UUNET Technologies, 22492 UNALLOCATED 12.2.46.0/24 1239 Sprint 15132 UNALLOCATED 12.9.150.0/24 701 UUNET Technologies, 32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic 13632 UNALLOCATED 12.20.55.0/24 6517 Yipes Communications Complete listing at http://thyme.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.51.159.0/24 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 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 /8:18 /9:9 /10:16 /11:40 /12:139 /13:280 /14:507 /15:1000 /16:9894 /17:4365 /18:7282 /19:15392 /20:17810 /21:17222 /22:21693 /23:22787 /24:134651 /25:773 /26:921 /27:486 /28:82 /29:9 /30:1 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 11492 1198 1212 Cable One 2386 1100 1400 AT&T Data Communications Serv 18566 1025 1044 Covad Communications 9583 1016 1180 Sify Limited 4755 979 1633 Videsh Sanchar Nigam Ltd. Aut 7011 978 1095 Citizens Utilities 6389 966 3098 bellsouth.net, inc. 6478 940 941 AT&T Worldnet Services 17488 876 1063 Hathway IP Over Cable Interne 9498 846 1171 BHARTI BT INTERNET LTD. Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:9 8:108 12:2034 13:1 15:20 16:3 17:5 18:13 20:35 24:1069 25:1 32:61 33:3 38:420 40:94 41:661 44:2 47:9 52:3 55:3 56:3 57:22 58:517 59:459 60:441 61:980 62:1128 63:1959 64:3414 65:2435 66:3646 67:1183 68:664 69:2212 70:599 71:121 72:1681 73:6 74:957 75:227 76:306 77:650 78:610 79:151 80:904 81:865 82:628 83:386 84:561 85:1001 86:403 87:667 88:346 89:1300 90:11 91:1205 92:299 93:443 96:28 97:14 98:152 99:3 114:2 116:641 117:305 118:133 119:388 120:29 121:524 122:764 123:331 124:850 125:1125 128:323 129:197 130:129 131:404 132:67 133:9 134:180 135:31 136:222 137:112 138:144 139:66 140:491 141:96 142:397 143:280 144:349 145:50 146:360 147:152 148:502 149:183 150:131 151:181 152:141 153:133 154:10 155:260 156:173 157:267 158:165 159:222 160:254 161:111 162:213 163:197 164:520 165:447 166:305 167:319 168:606 169:131 170:426 171:28 172:2 189:196 190:1864 192:5765 193:4102 194:3258 195:2428 196:1065 198:3728 199:3238 200:5674 201:1454 202:7614 203:7808 204:3980 205:2080 206:2393 207:2743 208:3322 209:3431 210:2526 211:1048 212:1387 213:1654 214:454 215:50 216:4335 217:1225 218:349 219:407 220:1069 221:480 222:305 End of report