This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG, CaribNOG and the RIPE Routing Working Group. Daily listings are sent to bgp-stats@lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfs@cisco.com>. Routing Table Report 04:00 +10GMT Sat 23 Oct, 2010 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 334429 Prefixes after maximum aggregation: 152752 Deaggregation factor: 2.19 Unique aggregates announced to Internet: 164630 Total ASes present in the Internet Routing Table: 35103 Prefixes per ASN: 9.53 Origin-only ASes present in the Internet Routing Table: 30270 Origin ASes announcing only one prefix: 14793 Transit ASes present in the Internet Routing Table: 4833 Transit-only ASes present in the Internet Routing Table: 122 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 31 Max AS path prepend of ASN (36992) 29 Prefixes from unregistered ASNs in the Routing Table: 309 Unregistered ASNs in the Routing Table: 130 Number of 32-bit ASNs allocated by the RIRs: 829 Prefixes from 32-bit ASNs in the Routing Table: 0 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 196 Number of addresses announced to Internet: 2290781856 Equivalent to 136 /8s, 138 /16s and 142 /24s Percentage of available address space announced: 61.8 Percentage of allocated address space announced: 65.4 Percentage of available address space allocated: 94.6 Percentage of address space in use by end-sites: 85.3 Total number of prefixes smaller than registry allocations: 137383 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 81988 Total APNIC prefixes after maximum aggregation: 27957 APNIC Deaggregation factor: 2.93 Prefixes being announced from the APNIC address blocks: 78894 Unique aggregates announced from the APNIC address blocks: 34579 APNIC Region origin ASes present in the Internet Routing Table: 4218 APNIC Prefixes per ASN: 18.70 APNIC Region origin ASes announcing only one prefix: 1178 APNIC Region transit ASes present in the Internet Routing Table: 675 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 560261152 Equivalent to 33 /8s, 100 /16s and 232 /24s Percentage of available APNIC address space announced: 75.9 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 55296-56319, 131072-132095 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 110/8, 111/8, 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, 133/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 137432 Total ARIN prefixes after maximum aggregation: 71024 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 108852 Unique aggregates announced from the ARIN address blocks: 43520 ARIN Region origin ASes present in the Internet Routing Table: 13992 ARIN Prefixes per ASN: 7.78 ARIN Region origin ASes announcing only one prefix: 5369 ARIN Region transit ASes present in the Internet Routing Table: 1478 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 23 Number of ARIN addresses announced to Internet: 737933824 Equivalent to 43 /8s, 251 /16s and 250 /24s Percentage of available ARIN address space announced: 62.8 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 53248-55295, 393216-394239 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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, 107/8, 108/8, 173/8, 174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 76974 Total RIPE prefixes after maximum aggregation: 44606 RIPE Deaggregation factor: 1.73 Prefixes being announced from the RIPE address blocks: 70398 Unique aggregates announced from the RIPE address blocks: 46166 RIPE Region origin ASes present in the Internet Routing Table: 14926 RIPE Prefixes per ASN: 4.72 RIPE Region origin ASes announcing only one prefix: 7695 RIPE Region transit ASes present in the Internet Routing Table: 2306 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 30 Number of RIPE addresses announced to Internet: 442325120 Equivalent to 26 /8s, 93 /16s and 88 /24s Percentage of available RIPE address space announced: 77.5 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, 47104-52223, 196608-197631 RIPE Address Blocks 2/8, 25/8, 31/8, 46/8, 51/8, 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, 109/8, 176/8, 178/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 30290 Total LACNIC prefixes after maximum aggregation: 7185 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 28964 Unique aggregates announced from the LACNIC address blocks: 15428 LACNIC Region origin ASes present in the Internet Routing Table: 1371 LACNIC Prefixes per ASN: 21.13 LACNIC Region origin ASes announcing only one prefix: 427 LACNIC Region transit ASes present in the Internet Routing Table: 238 Average LACNIC Region AS path length visible: 4.3 Max LACNIC Region AS path length visible: 18 Number of LACNIC addresses announced to Internet: 76358016 Equivalent to 4 /8s, 141 /16s and 33 /24s Percentage of available LACNIC address space announced: 56.9 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 7519 Total AfriNIC prefixes after maximum aggregation: 1866 AfriNIC Deaggregation factor: 4.03 Prefixes being announced from the AfriNIC address blocks: 5824 Unique aggregates announced from the AfriNIC address blocks: 1725 AfriNIC Region origin ASes present in the Internet Routing Table: 410 AfriNIC Prefixes per ASN: 14.20 AfriNIC Region origin ASes announcing only one prefix: 124 AfriNIC Region transit ASes present in the Internet Routing Table: 91 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC addresses announced to Internet: 20921088 Equivalent to 1 /8s, 63 /16s and 59 /24s Percentage of available AfriNIC address space announced: 62.3 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 1875 9453 513 Korea Telecom (KIX) 7545 1417 299 78 TPG Internet Pty Ltd 4755 1373 382 158 TATA Communications formerly 17488 1364 156 121 Hathway IP Over Cable Interne 17974 1274 304 79 PT TELEKOMUNIKASI INDONESIA 24560 1051 309 180 Bharti Airtel Ltd., Telemedia 9583 1030 76 493 Sify Limited 4808 977 1722 266 CNCGROUP IP network: China169 18101 892 116 134 Reliance Infocom Ltd Internet 9829 827 694 27 BSNL National Internet Backbo Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3765 3667 278 bellsouth.net, inc. 4323 2621 1103 394 Time Warner Telecom 1785 1794 698 130 PaeTec Communications, Inc. 19262 1777 4833 279 Verizon Global Networks 20115 1506 1528 647 Charter Communications 7018 1437 5692 920 AT&T WorldNet Services 6478 1387 279 98 AT&T Worldnet Services 2386 1311 556 927 AT&T Data Communications Serv 11492 1236 231 74 Cable One 22773 1207 2859 62 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 3292 444 2027 389 TDC Tele Danmark 8866 420 133 25 Bulgarian Telecommunication C 8551 402 353 46 Bezeq International 702 397 1866 311 UUNET - Commercial IP service 34984 381 91 188 BILISIM TELEKOM 3301 379 1688 335 TeliaNet Sweden 3320 377 7332 330 Deutsche Telekom AG 30890 376 80 205 Evolva Telecom 12479 364 576 5 Uni2 Autonomous System 31148 359 19 79 FreeNet ISP Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 10620 1332 247 150 TVCABLE BOGOTA 8151 1327 2597 363 UniNet S.A. de C.V. 28573 1220 920 84 NET Servicos de Comunicao S.A 7303 831 441 107 Telecom Argentina Stet-France 6503 785 223 258 AVANTEL, S.A. 22047 564 310 15 VTR PUNTO NET S.A. 14420 545 39 76 CORPORACION NACIONAL DE TELEC 3816 484 210 95 Empresa Nacional de Telecomun 7738 478 922 30 Telecomunicacoes da Bahia S.A 14117 448 32 27 Telefonica del Sur S.A. Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 8452 1060 445 10 TEDATA 24863 742 147 39 LINKdotNET AS number 36992 639 278 159 Etisalat MISR 3741 268 907 225 The Internet Solution 24835 210 78 10 RAYA Telecom - Egypt 6713 203 199 12 Itissalat Al-MAGHRIB 29571 203 19 11 Ci Telecom Autonomous system 2018 197 277 64 Tertiary Education Network 33776 196 12 14 Starcomms Nigeria Limited 16637 154 440 91 MTN Network Solutions Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3765 3667 278 bellsouth.net, inc. 4323 2621 1103 394 Time Warner Telecom 4766 1875 9453 513 Korea Telecom (KIX) 1785 1794 698 130 PaeTec Communications, Inc. 19262 1777 4833 279 Verizon Global Networks 20115 1506 1528 647 Charter Communications 7018 1437 5692 920 AT&T WorldNet Services 7545 1417 299 78 TPG Internet Pty Ltd 6478 1387 279 98 AT&T Worldnet Services 4755 1373 382 158 TATA Communications formerly Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 2621 2227 Time Warner Telecom 1785 1794 1664 PaeTec Communications, Inc. 19262 1777 1498 Verizon Global Networks 4766 1875 1362 Korea Telecom (KIX) 7545 1417 1339 TPG Internet Pty Ltd 6478 1387 1289 AT&T Worldnet Services 17488 1364 1243 Hathway IP Over Cable Interne 4755 1373 1215 TATA Communications formerly 17974 1274 1195 PT TELEKOMUNIKASI INDONESIA 10620 1332 1182 TVCABLE BOGOTA Complete listing at http://thyme.rand.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 7018 AT&T WorldNet Servic 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 31.0.0.0/16 12654 RIPE NCC RIS Project 31.1.0.0/21 12654 RIPE NCC RIS Project 31.1.24.0/24 12654 RIPE NCC RIS Project 41.222.79.0/24 36938 >>UNKNOWN<< 41.223.92.0/22 36936 >>UNKNOWN<< 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 62.61.221.0/24 24974 Tachyon Europe BV - Wireless 64.21.192.0/20 11610 Internet Nebraska Corporation 64.21.212.0/22 11610 Internet Nebraska Corporation 64.21.216.0/21 11610 Internet Nebraska Corporation Complete listing at http://thyme.rand.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 /9:10 /10:25 /11:68 /12:207 /13:420 /14:744 /15:1345 /16:11370 /17:5497 /18:9345 /19:18553 /20:23802 /21:23849 /22:31438 /23:30643 /24:174207 /25:999 /26:1129 /27:583 /28:155 /29:12 /30:2 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2330 3765 bellsouth.net, inc. 4323 1410 2621 Time Warner Telecom 6478 1349 1387 AT&T Worldnet Services 10620 1220 1332 TVCABLE BOGOTA 11492 1193 1236 Cable One 1785 1077 1794 PaeTec Communications, Inc. 18566 1069 1088 Covad Communications 7011 1058 1159 Citizens Utilities 8452 967 1060 TEDATA 19262 903 1777 Verizon Global Networks Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:87 2:12 4:13 8:313 12:2010 13:8 14:44 15:20 16:3 17:9 20:9 24:1386 27:383 31:1 32:61 33:12 38:696 40:97 41:2563 44:3 46:164 47:10 49:4 50:1 52:12 55:5 56:2 57:31 58:837 59:498 60:480 61:1112 62:1012 63:1964 64:3748 65:2344 66:4066 67:1819 68:1139 69:2850 70:757 71:376 72:1937 73:2 74:2334 75:295 76:326 77:868 78:691 79:445 80:1047 81:805 82:499 83:453 84:690 85:1020 86:433 87:694 88:326 89:1569 90:110 91:3125 92:431 93:1019 94:1110 95:700 96:395 97:222 98:628 99:33 101:3 108:64 109:708 110:434 111:608 112:305 113:305 114:483 115:607 116:1137 117:662 118:541 119:983 120:164 121:720 122:1596 123:917 124:1226 125:1270 128:228 129:152 130:167 131:566 132:275 133:20 134:207 135:46 136:212 137:139 138:280 139:109 140:479 141:198 142:347 143:383 144:498 145:55 146:432 147:174 148:621 149:308 150:146 151:231 152:293 153:175 154:3 155:369 156:166 157:334 158:112 159:361 160:313 161:198 162:271 163:166 164:424 165:349 166:469 167:424 168:683 169:154 170:718 171:61 172:2 173:1042 174:496 175:241 176:1 177:1 178:542 180:682 181:1 182:240 183:236 184:131 186:740 187:541 188:850 189:804 190:4189 192:5761 193:4752 194:3434 195:2826 196:1199 198:3542 199:3632 200:5419 201:1575 202:8158 203:8282 204:4008 205:2316 206:2566 207:3028 208:3907 209:3476 210:2559 211:1281 212:1798 213:1719 214:686 215:66 216:4769 217:1558 218:521 219:401 220:1182 221:429 222:343 223:58 End of report