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 23 Jan, 2010 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 309323 Prefixes after maximum aggregation: 143748 Deaggregation factor: 2.15 Unique aggregates announced to Internet: 152029 Total ASes present in the Internet Routing Table: 33159 Prefixes per ASN: 9.33 Origin-only ASes present in the Internet Routing Table: 28791 Origin ASes announcing only one prefix: 14048 Transit ASes present in the Internet Routing Table: 4368 Transit-only ASes present in the Internet Routing Table: 106 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 23 Max AS path prepend of ASN ( 9503) 21 Prefixes from unregistered ASNs in the Routing Table: 764 Unregistered ASNs in the Routing Table: 132 Number of 32-bit ASNs allocated by the RIRs: 406 Prefixes from 32-bit ASNs in the Routing Table: 351 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 186 Number of addresses announced to Internet: 2178191808 Equivalent to 129 /8s, 212 /16s and 145 /24s Percentage of available address space announced: 58.8 Percentage of allocated address space announced: 65.9 Percentage of available address space allocated: 89.1 Percentage of address space in use by end-sites: 80.8 Total number of prefixes smaller than registry allocations: 149077 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 74725 Total APNIC prefixes after maximum aggregation: 25834 APNIC Deaggregation factor: 2.89 Prefixes being announced from the APNIC address blocks: 71407 Unique aggregates announced from the APNIC address blocks: 31479 APNIC Region origin ASes present in the Internet Routing Table: 3922 APNIC Prefixes per ASN: 18.21 APNIC Region origin ASes announcing only one prefix: 1070 APNIC Region transit ASes present in the Internet Routing Table: 619 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 23 Number of APNIC addresses announced to Internet: 489484832 Equivalent to 29 /8s, 44 /16s and 242 /24s Percentage of available APNIC address space announced: 76.8 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, 27/8, 43/8, 58/8, 59/8, 60/8, 61/8, 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, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 129460 Total ARIN prefixes after maximum aggregation: 67652 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 103566 Unique aggregates announced from the ARIN address blocks: 39277 ARIN Region origin ASes present in the Internet Routing Table: 13475 ARIN Prefixes per ASN: 7.69 ARIN Region origin ASes announcing only one prefix: 5213 ARIN Region transit ASes present in the Internet Routing Table: 1336 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 22 Number of ARIN addresses announced to Internet: 735487520 Equivalent to 43 /8s, 214 /16s and 166 /24s Percentage of available ARIN address space announced: 64.5 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, 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, 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: 71135 Total RIPE prefixes after maximum aggregation: 41584 RIPE Deaggregation factor: 1.71 Prefixes being announced from the RIPE address blocks: 64228 Unique aggregates announced from the RIPE address blocks: 42817 RIPE Region origin ASes present in the Internet Routing Table: 14007 RIPE Prefixes per ASN: 4.59 RIPE Region origin ASes announcing only one prefix: 7277 RIPE Region transit ASes present in the Internet Routing Table: 2094 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 21 Number of RIPE addresses announced to Internet: 414369024 Equivalent to 24 /8s, 178 /16s and 197 /24s Percentage of available RIPE address space announced: 77.2 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, 47104-52223, 196608-197631 RIPE Address Blocks 2/8, 25/8, 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, 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: 27183 Total LACNIC prefixes after maximum aggregation: 6541 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 25544 Unique aggregates announced from the LACNIC address blocks: 13806 LACNIC Region origin ASes present in the Internet Routing Table: 1232 LACNIC Prefixes per ASN: 20.73 LACNIC Region origin ASes announcing only one prefix: 396 LACNIC Region transit ASes present in the Internet Routing Table: 202 Average LACNIC Region AS path length visible: 4.0 Max LACNIC Region AS path length visible: 20 Number of LACNIC addresses announced to Internet: 70307584 Equivalent to 4 /8s, 48 /16s and 207 /24s Percentage of available LACNIC address space announced: 69.8 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 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: 6246 Total AfriNIC prefixes after maximum aggregation: 1788 AfriNIC Deaggregation factor: 3.49 Prefixes being announced from the AfriNIC address blocks: 4629 Unique aggregates announced from the AfriNIC address blocks: 1565 AfriNIC Region origin ASes present in the Internet Routing Table: 337 AfriNIC Prefixes per ASN: 13.74 AfriNIC Region origin ASes announcing only one prefix: 92 AfriNIC Region transit ASes present in the Internet Routing Table: 75 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 16 Number of AfriNIC addresses announced to Internet: 14803712 Equivalent to 0 /8s, 225 /16s and 227 /24s Percentage of available AfriNIC address space announced: 44.1 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 1857 7510 470 Korea Telecom (KIX) 4755 1310 303 137 TATA Communications formerly 17488 1273 131 140 Hathway IP Over Cable Interne 18101 1079 220 37 Reliance Infocom Ltd Internet 4134 1020 19605 398 CHINANET-BACKBONE 9583 986 72 491 Sify Limited 7545 931 198 98 TPG Internet Pty Ltd 17974 880 272 54 PT TELEKOMUNIKASI INDONESIA 9829 839 683 24 BSNL National Internet Backbo 24560 837 299 172 Bharti Airtel Ltd., Telemedia 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 4149 3875 316 bellsouth.net, inc. 4323 3783 1088 395 Time Warner Telecom 1785 1817 699 132 PaeTec Communications, Inc. 7018 1593 5778 1029 AT&T WorldNet Services 20115 1542 1490 671 Charter Communications 2386 1292 616 917 AT&T Data Communications Serv 3356 1203 10929 425 Level 3 Communications, LLC 11492 1128 222 14 Cable One 22773 1125 2600 66 Cox Communications, Inc. 6478 1103 241 262 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 35805 475 40 5 United Telecom of Georgia 3292 451 1904 395 TDC Tele Danmark 30890 439 99 205 Evolva Telecom 702 422 1821 336 UUNET - Commercial IP service 8551 397 353 37 Bezeq International 8866 374 110 24 Bulgarian Telecommunication C 3320 361 7068 308 Deutsche Telekom AG 3215 351 3176 108 France Telecom Transpac 3301 349 1412 310 TeliaNet Sweden 12479 320 576 5 Uni2 Autonomous System 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 1573 2886 240 UniNet S.A. de C.V. 10620 1007 225 131 TVCABLE BOGOTA 28573 840 674 85 NET Servicos de Comunicao S.A 7303 671 356 100 Telecom Argentina Stet-France 22047 548 302 14 VTR PUNTO NET S.A. 11830 472 308 59 Instituto Costarricense de El 6503 446 163 185 AVANTEL, S.A. 11172 444 99 69 Servicios Alestra S.A de C.V 14117 438 29 12 Telefonica del Sur S.A. 3816 432 194 70 Empresa Nacional de Telecomun 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 8452 1017 445 9 TEDATA 24863 723 143 53 LINKdotNET AS number 36992 282 75 172 Etisalat MISR 3741 274 857 234 The Internet Solution 2018 190 197 111 Tertiary Education Network 6713 177 167 12 Itissalat Al-MAGHRIB 29571 167 19 9 Ci Telecom Autonomous system 29975 134 506 15 Vodacom 33776 123 7 11 Starcomms Nigeria Limited 5536 117 7 17 Internet Egypt Network 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 4149 3875 316 bellsouth.net, inc. 4323 3783 1088 395 Time Warner Telecom 4766 1857 7510 470 Korea Telecom (KIX) 1785 1817 699 132 PaeTec Communications, Inc. 7018 1593 5778 1029 AT&T WorldNet Services 8151 1573 2886 240 UniNet S.A. de C.V. 20115 1542 1490 671 Charter Communications 4755 1310 303 137 TATA Communications formerly 2386 1292 616 917 AT&T Data Communications Serv 17488 1273 131 140 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 4323 3783 3388 Time Warner Telecom 1785 1817 1685 PaeTec Communications, Inc. 4766 1857 1387 Korea Telecom (KIX) 8151 1573 1333 UniNet S.A. de C.V. 4755 1310 1173 TATA Communications formerly 17488 1273 1133 Hathway IP Over Cable Interne 11492 1128 1114 Cable One 22773 1125 1059 Cox Communications, Inc. 18566 1059 1049 Covad Communications 18101 1079 1042 Reliance Infocom Ltd Internet 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 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 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic 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.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 2.0.0.0/16 12654 RIPE NCC RIS Project 2.1.0.0/21 12654 RIPE NCC RIS Project 2.1.24.0/24 12654 RIPE NCC RIS Project 41.223.92.0/22 36936 >>UNKNOWN<< 41.223.188.0/24 22351 Intelsat 41.223.189.0/24 26452 Local Communications Networks 46.0.0.0/16 12654 RIPE NCC RIS Project 46.1.0.0/21 12654 RIPE NCC RIS Project 46.1.24.0/24 12654 RIPE NCC RIS Project 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 /8:21 /9:10 /10:25 /11:66 /12:183 /13:385 /14:660 /15:1243 /16:10875 /17:5102 /18:8646 /19:17799 /20:21717 /21:21723 /22:28019 /23:28196 /24:161741 /25:928 /26:1160 /27:585 /28:215 /29:9 /30:7 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2707 4149 bellsouth.net, inc. 4323 2359 3783 Time Warner Telecom 4766 1475 1857 Korea Telecom (KIX) 1785 1285 1817 PaeTec Communications, Inc. 17488 1049 1273 Hathway IP Over Cable Interne 11492 1048 1128 Cable One 18566 1040 1059 Covad Communications 7018 960 1593 AT&T WorldNet Services 18101 958 1079 Reliance Infocom Ltd Internet 8452 913 1017 TEDATA Complete listing at http://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 2:1 4:13 8:234 12:2012 13:10 15:22 16:3 17:8 20:37 24:1301 32:49 38:642 40:99 41:1910 44:3 46:1 47:26 52:6 55:2 56:2 57:23 58:632 59:637 60:390 61:1100 62:977 63:2027 64:3796 65:2360 66:4102 67:1813 68:1052 69:2842 70:690 71:227 72:1874 73:2 74:2073 75:232 76:354 77:827 78:580 79:408 80:968 81:787 82:450 83:438 84:561 85:1003 86:383 87:706 88:418 89:1537 90:67 91:2686 92:413 93:1153 94:1287 95:794 96:208 97:294 98:493 99:23 100:1 109:235 110:265 111:418 112:184 113:225 114:309 115:513 116:1042 117:609 118:373 119:809 120:142 121:839 122:1376 123:834 124:1076 125:1298 128:198 129:203 130:138 131:461 132:82 133:16 134:195 135:41 136:222 137:172 138:235 139:80 140:464 141:123 142:375 143:348 144:391 145:51 146:417 147:179 148:566 149:195 150:146 151:171 152:248 153:165 154:2 155:271 156:178 157:330 158:97 159:355 160:304 161:176 162:272 163:187 164:311 165:470 166:493 167:388 168:759 169:157 170:568 171:48 172:2 173:444 174:530 175:26 180:284 183:212 184:3 186:261 187:211 188:1263 189:613 190:3444 192:5727 193:4410 194:3354 195:2778 196:1187 198:3559 199:3385 200:5295 201:1467 202:8087 203:8315 204:3996 205:2167 206:2420 207:3062 208:3898 209:3407 210:2531 211:1177 212:1648 213:1643 214:256 215:61 216:4441 217:1471 218:495 219:444 220:1129 221:465 222:309 End of report