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 15 Mar, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 248991 Prefixes after maximum aggregation: 125466 Deaggregation factor: 1.98 Unique aggregates announced to Internet: 120991 Total ASes present in the Internet Routing Table: 27634 Prefixes per ASN: 9.01 Origin-only ASes present in the Internet Routing Table: 24096 Origin ASes announcing only one prefix: 11666 Transit ASes present in the Internet Routing Table: 3538 Transit-only ASes present in the Internet Routing Table: 77 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: 49 Unregistered ASNs in the Routing Table: 20 Number of 32-bit ASNs allocated by the RIRs: 46 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: 867 Number of addresses announced to Internet: 1844889344 Equivalent to 109 /8s, 246 /16s and 199 /24s Percentage of available address space announced: 49.8 Percentage of allocated address space announced: 61.1 Percentage of available address space allocated: 81.4 Percentage of address space in use by end-sites: 70.8 Total number of prefixes smaller than registry allocations: 118196 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 56643 Total APNIC prefixes after maximum aggregation: 20889 APNIC Deaggregation factor: 2.71 Prefixes being announced from the APNIC address blocks: 54217 Unique aggregates announced from the APNIC address blocks: 23198 APNIC Region origin ASes present in the Internet Routing Table: 3163 APNIC Prefixes per ASN: 17.14 APNIC Region origin ASes announcing only one prefix: 849 APNIC Region transit ASes present in the Internet Routing Table: 488 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 335588192 Equivalent to 20 /8s, 0 /16s and 171 /24s Percentage of available APNIC address space announced: 76.9 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: 116408 Total ARIN prefixes after maximum aggregation: 65597 ARIN Deaggregation factor: 1.77 Prefixes being announced from the ARIN address blocks: 85043 Unique aggregates announced from the ARIN address blocks: 33612 ARIN Region origin ASes present in the Internet Routing Table: 12212 ARIN Prefixes per ASN: 6.96 ARIN Region origin ASes announcing only one prefix: 4692 ARIN Region transit ASes present in the Internet Routing Table: 1142 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 358814080 Equivalent to 21 /8s, 99 /16s and 17 /24s Percentage of available ARIN address space announced: 73.7 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: 53215 Total RIPE prefixes after maximum aggregation: 33075 RIPE Deaggregation factor: 1.61 Prefixes being announced from the RIPE address blocks: 48331 Unique aggregates announced from the RIPE address blocks: 32528 RIPE Region origin ASes present in the Internet Routing Table: 11037 RIPE Prefixes per ASN: 4.38 RIPE Region origin ASes announcing only one prefix: 5748 RIPE Region transit ASes present in the Internet Routing Table: 1679 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 347490080 Equivalent to 20 /8s, 182 /16s and 71 /24s Percentage of available RIPE address space announced: 79.7 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 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: 19085 Total LACNIC prefixes after maximum aggregation: 4763 LACNIC Deaggregation factor: 4.01 Prefixes being announced from the LACNIC address blocks: 17405 Unique aggregates announced from the LACNIC address blocks: 9489 LACNIC Region origin ASes present in the Internet Routing Table: 913 LACNIC Prefixes per ASN: 19.06 LACNIC Region origin ASes announcing only one prefix: 299 LACNIC Region transit ASes present in the Internet Routing Table: 154 Average LACNIC Region AS path length visible: 4.0 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 49694208 Equivalent to 2 /8s, 246 /16s and 70 /24s Percentage of available LACNIC address space announced: 49.4 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: 3589 Total AfriNIC prefixes after maximum aggregation: 1126 AfriNIC Deaggregation factor: 3.19 Prefixes being announced from the AfriNIC address blocks: 4011 Unique aggregates announced from the AfriNIC address blocks: 1804 AfriNIC Region origin ASes present in the Internet Routing Table: 231 AfriNIC Prefixes per ASN: 17.36 AfriNIC Region origin ASes announcing only one prefix: 78 AfriNIC Region transit ASes present in the Internet Routing Table: 42 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 10149632 Equivalent to 0 /8s, 154 /16s and 223 /24s Percentage of available AfriNIC address space announced: 30.2 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 1549 381 127 Videsh Sanchar Nigam Ltd. Aut 9498 1159 550 66 BHARTI BT INTERNET LTD. 9583 1148 109 26 Sify Limited 17488 1024 66 79 Hathway IP Over Cable Interne 4134 856 12473 317 CHINANET-BACKBONE 4766 849 6005 340 Korea Telecom (KIX) 23577 815 34 697 Korea Telecom (ATM-MPLS) 18101 674 126 53 Reliance Infocom Ltd Internet 9829 595 449 11 BSNL National Internet Backbo 4812 560 951 90 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 1430 5945 1006 AT&T WorldNet Services 4323 1394 1028 368 Time Warner Telecom 2386 1387 638 844 AT&T Data Communications Serv 11492 1215 146 23 Cable One 7011 1063 309 607 Citizens Utilities 18566 1043 296 10 Covad Communications 6197 990 728 477 BellSouth Network Solutions, 1785 977 479 103 AppliedTheory Corporation 174 962 6835 813 Cogent Communications 6478 932 238 111 AT&T Worldnet Services 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 384 188 7 TEDATA 3301 345 1443 311 TeliaNet Sweden 3320 322 7045 267 Deutsche Telekom AG 8866 293 78 24 Bulgarian Telecommunication C 8551 279 267 42 Bezeq International 3215 276 2639 90 France Telecom Transpac 5462 275 666 26 Telewest Broadband 8708 274 421 244 Romania Data Systems S.A. 680 272 2046 258 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 1191 2449 221 UniNet S.A. de C.V. 11830 556 299 9 Instituto Costarricense de El 7303 450 219 59 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 11172 406 116 68 Servicios Alestra S.A de C.V 6471 398 85 40 ENTEL CHILE S.A. 10620 372 98 47 TVCABLE BOGOTA 14117 352 25 15 Telefonica del Sur S.A. 22047 322 270 14 VTR PUNTO NET S.A. 20299 313 35 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 451 60 27 LINKdotNET AS number 3741 290 869 224 The Internet Solution 2018 250 276 119 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 1549 381 127 Videsh Sanchar Nigam Ltd. Aut 7018 1430 5945 1006 AT&T WorldNet Services 4323 1394 1028 368 Time Warner Telecom 2386 1387 638 844 AT&T Data Communications Serv 11492 1215 146 23 Cable One 8151 1191 2449 221 UniNet S.A. de C.V. 9498 1159 550 66 BHARTI BT INTERNET LTD. 9583 1148 109 26 Sify Limited 7011 1063 309 607 Citizens Utilities 18566 1043 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 1215 1192 Cable One 9583 1148 1122 Sify Limited 9498 1159 1093 BHARTI BT INTERNET LTD. 18566 1043 1033 Covad Communications 4323 1394 1026 Time Warner Telecom 8151 1191 970 UniNet S.A. de C.V. 17488 1024 945 Hathway IP Over Cable Interne 1785 977 874 AppliedTheory Corporation 22773 888 825 Cox Communications, Inc. 6478 932 821 AT&T Worldnet Services Complete listing at http://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic 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 33526 UNALLOCATED 64.128.26.0/24 4323 Time Warner Telecom 65382 PRIVATE 72.158.126.0/24 6381 bellsouth.net, inc. 65383 PRIVATE 72.158.127.0/24 6381 bellsouth.net, inc. 65011 PRIVATE 74.43.150.0/24 7011 Citizens Utilities 65000 PRIVATE 92.62.240.0/20 24750 Cable Internet Syste 64601 PRIVATE 118.232.77.0/24 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 24.75.192.0/18 19548 Adelphia Business Solutions 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 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 /10:16 /11:39 /12:139 /13:278 /14:499 /15:991 /16:9782 /17:4273 /18:7233 /19:15183 /20:17442 /21:16612 /22:21095 /23:22203 /24:130826 /25:761 /26:979 /27:483 /28:111 /29:9 /30:1 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 11492 1201 1215 Cable One 2386 1091 1387 AT&T Data Communications Serv 18566 1024 1043 Covad Communications 9583 985 1148 Sify Limited 7011 947 1063 Citizens Utilities 6478 931 932 AT&T Worldnet Services 4755 922 1549 Videsh Sanchar Nigam Ltd. Aut 17488 839 1024 Hathway IP Over Cable Interne 9498 821 1159 BHARTI BT INTERNET LTD. 23577 806 815 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 8:100 11:1 12:1998 13:2 15:21 16:3 17:6 18:13 20:35 24:1043 25:1 32:61 33:4 38:401 40:95 41:630 44:2 46:5 47:8 52:3 55:3 56:3 57:22 58:514 59:420 60:418 61:984 62:1116 63:1970 64:3349 65:2362 66:3613 67:1042 68:646 69:2102 70:512 71:126 72:1494 73:6 74:879 75:236 76:272 77:600 78:526 79:99 80:881 81:843 82:610 83:365 84:541 85:951 86:391 87:633 88:306 89:1196 90:11 91:1098 92:226 93:135 96:18 97:15 98:95 99:2 116:561 117:274 118:83 119:237 121:462 122:712 123:294 124:804 125:1123 128:322 129:201 130:125 131:401 132:69 133:9 134:187 135:32 136:221 137:119 138:154 139:67 140:484 141:109 142:378 143:279 144:339 145:53 146:333 147:132 148:498 149:180 150:121 151:155 152:142 153:133 154:11 155:266 156:207 157:253 158:165 159:219 160:252 161:100 162:205 163:194 164:567 165:431 166:296 167:313 168:590 169:130 170:426 171:29 172:3 189:154 190:1465 192:5771 193:4106 194:3263 195:2356 196:1064 198:3778 199:3225 200:5502 201:1316 202:7584 203:7803 204:4013 205:2092 206:2422 207:2771 208:3207 209:3488 210:2533 211:1027 212:1309 213:1601 214:451 215:48 216:4210 217:1232 218:340 219:392 220:1068 221:402 222:311 End of report