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 26 Jul, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 263817 Prefixes after maximum aggregation: 129203 Deaggregation factor: 2.04 Unique aggregates announced to Internet: 128902 Total ASes present in the Internet Routing Table: 28747 Prefixes per ASN: 9.18 Origin-only ASes present in the Internet Routing Table: 25067 Origin ASes announcing only one prefix: 12114 Transit ASes present in the Internet Routing Table: 3680 Transit-only ASes present in the Internet Routing Table: 80 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: 585 Unregistered ASNs in the Routing Table: 213 Number of 32-bit ASNs allocated by the RIRs: 51 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: 779 Number of addresses announced to Internet: 1879804352 Equivalent to 112 /8s, 11 /16s and 137 /24s Percentage of available address space announced: 50.7 Percentage of allocated address space announced: 61.6 Percentage of available address space allocated: 82.3 Percentage of address space in use by end-sites: 72.8 Total number of prefixes smaller than registry allocations: 128837 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 60552 Total APNIC prefixes after maximum aggregation: 22662 APNIC Deaggregation factor: 2.67 Prefixes being announced from the APNIC address blocks: 57525 Unique aggregates announced from the APNIC address blocks: 25903 APNIC Region origin ASes present in the Internet Routing Table: 3307 APNIC Prefixes per ASN: 17.39 APNIC Region origin ASes announcing only one prefix: 877 APNIC Region transit ASes present in the Internet Routing Table: 519 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 368888864 Equivalent to 21 /8s, 252 /16s and 204 /24s Percentage of available APNIC address space announced: 78.5 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, 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: 121160 Total ARIN prefixes after maximum aggregation: 65083 ARIN Deaggregation factor: 1.86 Prefixes being announced from the ARIN address blocks: 90677 Unique aggregates announced from the ARIN address blocks: 34897 ARIN Region origin ASes present in the Internet Routing Table: 12311 ARIN Prefixes per ASN: 7.37 ARIN Region origin ASes announcing only one prefix: 4750 ARIN Region transit ASes present in the Internet Routing Table: 1154 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 15 Number of ARIN addresses announced to Internet: 353191456 Equivalent to 21 /8s, 13 /16s and 70 /24s Percentage of available ARIN address space announced: 72.6 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: 56776 Total RIPE prefixes after maximum aggregation: 34509 RIPE Deaggregation factor: 1.65 Prefixes being announced from the RIPE address blocks: 51972 Unique aggregates announced from the RIPE address blocks: 34924 RIPE Region origin ASes present in the Internet Routing Table: 11625 RIPE Prefixes per ASN: 4.47 RIPE Region origin ASes announcing only one prefix: 6092 RIPE Region transit ASes present in the Internet Routing Table: 1745 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 367204704 Equivalent to 21 /8s, 227 /16s and 25 /24s Percentage of available RIPE address space announced: 84.2 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: 20746 Total LACNIC prefixes after maximum aggregation: 5244 LACNIC Deaggregation factor: 3.96 Prefixes being announced from the LACNIC address blocks: 18960 Unique aggregates announced from the LACNIC address blocks: 10738 LACNIC Region origin ASes present in the Internet Routing Table: 971 LACNIC Prefixes per ASN: 19.53 LACNIC Region origin ASes announcing only one prefix: 318 LACNIC Region transit ASes present in the Internet Routing Table: 165 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 18 Number of LACNIC addresses announced to Internet: 53835776 Equivalent to 3 /8s, 53 /16s and 120 /24s Percentage of available LACNIC address space announced: 53.5 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: 4001 Total AfriNIC prefixes after maximum aggregation: 1217 AfriNIC Deaggregation factor: 3.29 Prefixes being announced from the AfriNIC address blocks: 4304 Unique aggregates announced from the AfriNIC address blocks: 1861 AfriNIC Region origin ASes present in the Internet Routing Table: 242 AfriNIC Prefixes per ASN: 17.79 AfriNIC Region origin ASes announcing only one prefix: 77 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: 12518400 Equivalent to 0 /8s, 191 /16s and 4 /24s Percentage of available AfriNIC address space announced: 37.3 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 1677 342 177 Videsh Sanchar Nigam Ltd. Aut 17488 1236 85 99 Hathway IP Over Cable Interne 9583 1145 86 482 Sify Limited 4766 853 6390 347 Korea Telecom (KIX) 23577 830 35 702 Korea Telecom (ATM-MPLS) 4134 828 13603 337 CHINANET-BACKBONE 4780 711 351 63 Digital United Inc. 18101 710 167 33 Reliance Infocom Ltd Internet 9498 661 291 57 BHARTI BT INTERNET LTD. 4808 621 1120 138 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 6389 3209 3359 213 bellsouth.net, inc. 209 2999 3859 623 Qwest 6298 1648 237 780 Cox Communicatons 4323 1486 1062 380 Time Warner Telecom 2386 1485 663 879 AT&T Data Communications Serv 7018 1412 5840 989 AT&T WorldNet Services 1785 1227 510 104 AppliedTheory Corporation 11492 1208 149 28 Cable One 20115 1118 1082 572 Charter Communications 18566 1045 296 10 Covad 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 413 1792 371 TDC Tele Danmark 3301 332 1460 303 TeliaNet Sweden 3320 322 7047 270 Deutsche Telekom AG 8452 320 188 11 TEDATA 8866 317 77 21 Bulgarian Telecommunication C 5462 296 666 27 Telewest Broadband 8551 288 270 38 Bezeq International 3215 277 2758 90 France Telecom Transpac 680 274 2047 264 DFN-IP service G-WiN 6746 267 125 242 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 472 233 60 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 6471 415 85 48 ENTEL CHILE S.A. 11172 408 118 71 Servicios Alestra S.A de C.V 10620 407 107 56 TVCABLE BOGOTA 14117 375 23 9 Telefonica del Sur S.A. 20299 331 23 104 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 478 61 25 LINKdotNET AS number 20858 398 34 3 EgyNet 3741 268 855 223 The Internet Solution 2018 209 197 131 Tertiary Education Network 6713 141 135 11 Itissalat Al-MAGHRIB 33783 135 10 12 EEPAD TISP TELECOM & INTERNET 5713 131 556 76 Telkom SA Ltd 5536 120 8 17 Internet Egypt Network 33776 115 6 7 Starcomms Nigeria Limited 29571 107 13 8 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 6389 3209 3359 213 bellsouth.net, inc. 209 2999 3859 623 Qwest 4755 1677 342 177 Videsh Sanchar Nigam Ltd. Aut 6298 1648 237 780 Cox Communicatons 4323 1486 1062 380 Time Warner Telecom 2386 1485 663 879 AT&T Data Communications Serv 7018 1412 5840 989 AT&T WorldNet Services 8151 1384 2590 225 UniNet S.A. de C.V. 17488 1236 85 99 Hathway IP Over Cable Interne 1785 1227 510 104 AppliedTheory Corporation Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 209 2999 2376 Qwest 4755 1677 1500 Videsh Sanchar Nigam Ltd. Aut 11492 1208 1180 Cable One 8151 1384 1159 UniNet S.A. de C.V. 17488 1236 1137 Hathway IP Over Cable Interne 1785 1227 1123 AppliedTheory Corporation 4323 1486 1106 Time Warner Telecom 18566 1045 1035 Covad Communications 22773 972 908 Cox Communications, Inc. 6298 1648 868 Cox Communicatons 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. 24.48.246.0/24 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 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 /11:45 /12:145 /13:288 /14:519 /15:1044 /16:10020 /17:4337 /18:7532 /19:15887 /20:18548 /21:18162 /22:22735 /23:23709 /24:138084 /25:837 /26:1019 /27:767 /28:82 /29:7 /30:1 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2040 3209 bellsouth.net, inc. 209 1750 2999 Qwest 6298 1624 1648 Cox Communicatons 11492 1190 1208 Cable One 2386 1182 1485 AT&T Data Communications Serv 17488 1048 1236 Hathway IP Over Cable Interne 4755 1029 1677 Videsh Sanchar Nigam Ltd. Aut 18566 1026 1045 Covad Communications 6478 1006 1015 AT&T Worldnet Services 9583 1001 1145 Sify Limited Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:8 8:126 12:2107 13:2 15:22 16:3 17:5 18:13 20:35 24:1063 32:60 38:467 40:92 41:661 43:1 44:2 47:12 52:3 55:3 56:3 57:25 58:521 59:506 60:453 61:1011 62:1196 63:2042 64:3251 65:2391 66:3504 67:1227 68:744 69:2271 70:804 71:117 72:1965 73:5 74:1042 75:155 76:306 77:758 78:764 79:211 80:938 81:824 82:599 83:377 84:566 85:965 86:409 87:690 88:338 89:1323 90:15 91:1382 92:231 93:710 94:88 96:48 97:34 98:266 99:4 112:1 113:1 114:90 115:19 116:864 117:323 118:189 119:426 120:56 121:567 122:801 123:365 124:903 125:1177 128:361 129:198 130:134 131:410 132:66 133:9 134:186 135:33 136:224 137:92 138:146 139:93 140:494 141:99 142:408 143:332 144:393 145:51 146:366 147:156 148:517 149:196 150:125 151:180 152:143 153:136 154:10 155:252 156:175 157:290 158:187 159:237 160:279 161:118 162:215 163:155 164:518 165:452 166:319 167:331 168:621 169:139 170:426 171:32 172:10 188:1 189:297 190:2197 192:5797 193:4098 194:3229 195:2536 196:1025 198:3722 199:3279 200:5586 201:1463 202:7656 203:8052 204:3983 205:2128 206:2333 207:2753 208:3451 209:3515 210:2583 211:1073 212:1412 213:1583 214:164 215:49 216:4468 217:1208 218:342 219:423 220:1055 221:451 222:312 End of report