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 12 Jul, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 262262 Prefixes after maximum aggregation: 128798 Deaggregation factor: 2.04 Unique aggregates announced to Internet: 128001 Total ASes present in the Internet Routing Table: 28650 Prefixes per ASN: 9.15 Origin-only ASes present in the Internet Routing Table: 24985 Origin ASes announcing only one prefix: 12092 Transit ASes present in the Internet Routing Table: 3665 Transit-only ASes present in the Internet Routing Table: 78 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 18 Max AS path prepend of ASN ( 3816) 15 Prefixes from unregistered ASNs in the Routing Table: 603 Unregistered ASNs in the Routing Table: 217 Number of 32-bit ASNs allocated by the RIRs: 48 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: 781 Number of addresses announced to Internet: 1856079840 Equivalent to 110 /8s, 161 /16s and 135 /24s Percentage of available address space announced: 50.1 Percentage of allocated address space announced: 60.8 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: 127883 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 60114 Total APNIC prefixes after maximum aggregation: 22448 APNIC Deaggregation factor: 2.68 Prefixes being announced from the APNIC address blocks: 57088 Unique aggregates announced from the APNIC address blocks: 25456 APNIC Region origin ASes present in the Internet Routing Table: 3301 APNIC Prefixes per ASN: 17.29 APNIC Region origin ASes announcing only one prefix: 879 APNIC Region transit ASes present in the Internet Routing Table: 520 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 365086240 Equivalent to 21 /8s, 194 /16s and 198 /24s Percentage of available APNIC address space announced: 77.7 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: 120397 Total ARIN prefixes after maximum aggregation: 65051 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 90092 Unique aggregates announced from the ARIN address blocks: 34869 ARIN Region origin ASes present in the Internet Routing Table: 12272 ARIN Prefixes per ASN: 7.34 ARIN Region origin ASes announcing only one prefix: 4750 ARIN Region transit ASes present in the Internet Routing Table: 1146 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 15 Number of ARIN addresses announced to Internet: 351882784 Equivalent to 20 /8s, 249 /16s and 78 /24s Percentage of available ARIN address space announced: 72.3 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: 56428 Total RIPE prefixes after maximum aggregation: 34361 RIPE Deaggregation factor: 1.64 Prefixes being announced from the RIPE address blocks: 51609 Unique aggregates announced from the RIPE address blocks: 34670 RIPE Region origin ASes present in the Internet Routing Table: 11584 RIPE Prefixes per ASN: 4.46 RIPE Region origin ASes announcing only one prefix: 6079 RIPE Region transit ASes present in the Internet Routing Table: 1742 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 365628544 Equivalent to 21 /8s, 203 /16s and 12 /24s Percentage of available RIPE address space announced: 83.8 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: 20695 Total LACNIC prefixes after maximum aggregation: 5260 LACNIC Deaggregation factor: 3.93 Prefixes being announced from the LACNIC address blocks: 18843 Unique aggregates announced from the LACNIC address blocks: 10697 LACNIC Region origin ASes present in the Internet Routing Table: 963 LACNIC Prefixes per ASN: 19.57 LACNIC Region origin ASes announcing only one prefix: 311 LACNIC Region transit ASes present in the Internet Routing Table: 160 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 17 Number of LACNIC addresses announced to Internet: 53584640 Equivalent to 3 /8s, 49 /16s and 163 /24s Percentage of available LACNIC address space announced: 53.2 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: 4028 Total AfriNIC prefixes after maximum aggregation: 1186 AfriNIC Deaggregation factor: 3.40 Prefixes being announced from the AfriNIC address blocks: 4333 Unique aggregates announced from the AfriNIC address blocks: 1861 AfriNIC Region origin ASes present in the Internet Routing Table: 239 AfriNIC Prefixes per ASN: 18.13 AfriNIC Region origin ASes announcing only one prefix: 73 AfriNIC Region transit ASes present in the Internet Routing Table: 45 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 12243712 Equivalent to 0 /8s, 186 /16s and 211 /24s Percentage of available AfriNIC address space announced: 36.5 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 1673 342 175 Videsh Sanchar Nigam Ltd. Aut 17488 1208 83 93 Hathway IP Over Cable Interne 9583 1152 86 477 Sify Limited 9498 1080 550 63 BHARTI BT INTERNET LTD. 4766 851 6390 347 Korea Telecom (KIX) 23577 831 35 704 Korea Telecom (ATM-MPLS) 4134 823 13523 332 CHINANET-BACKBONE 4780 704 351 63 Digital United Inc. 18101 692 167 33 Reliance Infocom Ltd Internet 9829 599 450 12 BSNL National Internet Backbo 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 3874 625 Qwest 6389 2664 3260 195 bellsouth.net, inc. 2386 1485 663 877 AT&T Data Communications Serv 4323 1475 1045 377 Time Warner Telecom 7018 1399 5823 981 AT&T WorldNet Services 6298 1303 185 753 Cox Communicatons 11492 1221 148 31 Cable One 1785 1084 510 104 AppliedTheory Corporation 18566 1045 296 10 Covad Communications 20115 1043 1059 557 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 8452 348 188 11 TEDATA 3301 333 1460 304 TeliaNet Sweden 3320 322 7047 270 Deutsche Telekom AG 8866 313 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 1368 2588 224 UniNet S.A. de C.V. 11830 612 299 9 Instituto Costarricense de El 22047 565 270 14 VTR PUNTO NET S.A. 7303 469 231 65 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 405 106 69 TVCABLE BOGOTA 14117 375 23 9 Telefonica del Sur S.A. 20299 336 23 99 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 475 61 30 LINKdotNET AS number 20858 398 34 3 EgyNet 3741 273 853 224 The Internet Solution 2018 222 206 94 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 100 6 3 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 3874 625 Qwest 6389 2664 3260 195 bellsouth.net, inc. 4755 1673 342 175 Videsh Sanchar Nigam Ltd. Aut 2386 1485 663 877 AT&T Data Communications Serv 4323 1475 1045 377 Time Warner Telecom 7018 1399 5823 981 AT&T WorldNet Services 8151 1368 2588 224 UniNet S.A. de C.V. 6298 1303 185 753 Cox Communicatons 11492 1221 148 31 Cable One 17488 1208 83 93 Hathway IP Over Cable Interne Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 6389 2664 2469 bellsouth.net, inc. 4755 1673 1498 Videsh Sanchar Nigam Ltd. Aut 11492 1221 1190 Cable One 8151 1368 1144 UniNet S.A. de C.V. 17488 1208 1115 Hathway IP Over Cable Interne 4323 1475 1098 Time Warner Telecom 18566 1045 1035 Covad Communications 9498 1080 1017 BHARTI BT INTERNET LTD. 1785 1084 980 AppliedTheory Corporation 22773 969 906 Cox Communications, Inc. 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 /8:17 /9:9 /10:16 /11:45 /12:145 /13:286 /14:516 /15:1037 /16:9979 /17:4327 /18:7427 /19:15846 /20:18437 /21:18085 /22:22612 /23:23524 /24:137181 /25:854 /26:1038 /27:781 /28:83 /29:9 /30:1 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 209 1761 3008 Qwest 6389 1667 2664 bellsouth.net, inc. 6298 1288 1303 Cox Communicatons 11492 1205 1221 Cable One 2386 1181 1485 AT&T Data Communications Serv 18566 1026 1045 Covad Communications 17488 1022 1208 Hathway IP Over Cable Interne 4755 1018 1673 Videsh Sanchar Nigam Ltd. Aut 9583 1007 1152 Sify Limited 6478 981 990 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 8:126 12:2084 13:2 15:22 16:3 17:5 18:13 20:35 24:1081 25:1 32:61 38:447 40:92 41:663 43:1 44:2 47:12 52:3 55:3 56:3 57:25 58:518 59:505 60:450 61:1002 62:1192 63:2028 64:3282 65:2382 66:3519 67:1229 68:712 69:2266 70:736 71:118 72:1900 73:5 74:1054 75:153 76:302 77:744 78:723 79:200 80:931 81:841 82:589 83:388 84:564 85:952 86:411 87:684 88:335 89:1289 90:14 91:1336 92:220 93:674 94:56 96:40 97:28 98:207 99:2 112:1 113:1 114:79 115:2 116:824 117:319 118:190 119:420 120:60 121:562 122:798 123:364 124:867 125:1160 128:362 129:199 130:132 131:407 132:66 133:9 134:177 135:32 136:222 137:83 138:146 139:94 140:490 141:98 142:407 143:314 144:367 145:51 146:367 147:158 148:516 149:198 150:130 151:190 152:144 153:136 154:10 155:277 156:174 157:291 158:184 159:237 160:279 161:118 162:219 163:187 164:523 165:451 166:320 167:329 168:632 169:137 170:428 171:32 172:10 188:1 189:271 190:2175 192:5723 193:4104 194:3224 195:2525 196:1046 198:3715 199:3256 200:5549 201:1471 202:7611 203:8047 204:3972 205:2124 206:2383 207:2760 208:3423 209:3494 210:2588 211:1074 212:1404 213:1574 214:158 215:49 216:4411 217:1201 218:342 219:420 220:1058 221:468 222:308 End of report