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[routing-wg] Weekly Routing Table Report
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Routing Analysis Role Account
cscora at apnic.net
Fri Dec 10 21:35:53 CET 2010
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 at lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfs at cisco.com>. Routing Table Report 04:00 +10GMT Sat 11 Dec, 2010 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 338487 Prefixes after maximum aggregation: 152765 Deaggregation factor: 2.22 Unique aggregates announced to Internet: 166476 Total ASes present in the Internet Routing Table: 35460 Prefixes per ASN: 9.55 Origin-only ASes present in the Internet Routing Table: 30540 Origin ASes announcing only one prefix: 14921 Transit ASes present in the Internet Routing Table: 4920 Transit-only ASes present in the Internet Routing Table: 118 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: 684 Unregistered ASNs in the Routing Table: 323 Number of 32-bit ASNs allocated by the RIRs: 939 Prefixes from 32-bit ASNs in the Routing Table: 4 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 193 Number of addresses announced to Internet: 2317458720 Equivalent to 138 /8s, 33 /16s and 157 /24s Percentage of available address space announced: 62.5 Percentage of allocated address space announced: 64.6 Percentage of available address space allocated: 96.8 Percentage of address space in use by end-sites: 86.6 Total number of prefixes smaller than registry allocations: 139176 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 83574 Total APNIC prefixes after maximum aggregation: 28342 APNIC Deaggregation factor: 2.95 Prefixes being announced from the APNIC address blocks: 80522 Unique aggregates announced from the APNIC address blocks: 34882 APNIC Region origin ASes present in the Internet Routing Table: 4270 APNIC Prefixes per ASN: 18.86 APNIC Region origin ASes announcing only one prefix: 1209 APNIC Region transit ASes present in the Internet Routing Table: 691 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 20 Number of APNIC addresses announced to Internet: 571740448 Equivalent to 34 /8s, 20 /16s and 17 /24s Percentage of available APNIC address space announced: 77.5 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: 136853 Total ARIN prefixes after maximum aggregation: 69866 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 107840 Unique aggregates announced from the ARIN address blocks: 43908 ARIN Region origin ASes present in the Internet Routing Table: 14068 ARIN Prefixes per ASN: 7.67 ARIN Region origin ASes announcing only one prefix: 5390 ARIN Region transit ASes present in the Internet Routing Table: 1494 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 23 Number of ARIN addresses announced to Internet: 741824128 Equivalent to 44 /8s, 55 /16s and 86 /24s Percentage of available ARIN address space announced: 62.3 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 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, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 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, 100/8, 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: 79084 Total RIPE prefixes after maximum aggregation: 45393 RIPE Deaggregation factor: 1.74 Prefixes being announced from the RIPE address blocks: 72578 Unique aggregates announced from the RIPE address blocks: 47126 RIPE Region origin ASes present in the Internet Routing Table: 15108 RIPE Prefixes per ASN: 4.80 RIPE Region origin ASes announcing only one prefix: 7748 RIPE Region transit ASes present in the Internet Routing Table: 2336 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 30 Number of RIPE addresses announced to Internet: 450700800 Equivalent to 26 /8s, 221 /16s and 38 /24s Percentage of available RIPE address space announced: 74.6 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, 5/8, 25/8, 31/8, 37/8, 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: 31053 Total LACNIC prefixes after maximum aggregation: 7139 LACNIC Deaggregation factor: 4.35 Prefixes being announced from the LACNIC address blocks: 29788 Unique aggregates announced from the LACNIC address blocks: 15473 LACNIC Region origin ASes present in the Internet Routing Table: 1408 LACNIC Prefixes per ASN: 21.16 LACNIC Region origin ASes announcing only one prefix: 439 LACNIC Region transit ASes present in the Internet Routing Table: 253 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 18 Number of LACNIC addresses announced to Internet: 78606336 Equivalent to 4 /8s, 175 /16s and 112 /24s Percentage of available LACNIC address space announced: 58.6 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: 7683 Total AfriNIC prefixes after maximum aggregation: 1907 AfriNIC Deaggregation factor: 4.03 Prefixes being announced from the AfriNIC address blocks: 5972 Unique aggregates announced from the AfriNIC address blocks: 1792 AfriNIC Region origin ASes present in the Internet Routing Table: 426 AfriNIC Prefixes per ASN: 14.02 AfriNIC Region origin ASes announcing only one prefix: 135 AfriNIC Region transit ASes present in the Internet Routing Table: 92 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC addresses announced to Internet: 21769216 Equivalent to 1 /8s, 76 /16s and 44 /24s Percentage of available AfriNIC address space announced: 43.3 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 105/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 1874 9453 520 Korea Telecom (KIX) 7545 1573 299 79 TPG Internet Pty Ltd 4755 1422 648 141 TATA Communications formerly 17974 1331 459 27 PT TELEKOMUNIKASI INDONESIA 17488 1102 158 113 Hathway IP Over Cable Interne 9583 1043 107 487 Sify Limited 24560 1035 309 170 Bharti Airtel Ltd., Telemedia 4808 990 1715 271 CNCGROUP IP network: China169 18101 939 116 138 Reliance Infocom Ltd Internet 9829 838 696 31 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 3736 3887 269 bellsouth.net, inc. 4323 2641 1077 400 Time Warner Telecom 19262 1834 4869 282 Verizon Global Networks 1785 1795 697 132 PaeTec Communications, Inc. 20115 1512 1531 640 Charter Communications 6478 1427 289 75 AT&T Worldnet Services 7018 1360 5652 873 AT&T WorldNet Services 2386 1308 571 926 AT&T Data Communications Serv 22773 1261 2864 74 Cox Communications, Inc. 11492 1256 234 73 Cable One 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 6830 502 1763 309 UPC Distribution Services 3292 443 2010 385 TDC Tele Danmark 8866 435 137 24 Bulgarian Telecommunication C 9121 431 1690 29 TTnet Autonomous System 34984 422 92 191 BILISIM TELEKOM 9198 414 202 13 Kazakhtelecom Data Network Ad 8551 402 353 46 Bezeq International 702 397 1864 311 UUNET - Commercial IP service 12479 397 577 6 Uni2 Autonomous System 3301 385 1696 341 TeliaNet Sweden 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 8151 1351 2649 369 UniNet S.A. de C.V. 10620 1344 250 156 TVCABLE BOGOTA 28573 1209 932 79 NET Servicos de Comunicao S.A 6503 1175 355 80 AVANTEL, S.A. 7303 830 441 106 Telecom Argentina Stet-France 14420 584 49 88 CORPORACION NACIONAL DE TELEC 22047 563 310 15 VTR PUNTO NET S.A. 3816 492 214 100 Empresa Nacional de Telecomun 7738 478 922 30 Telecomunicacoes da Bahia S.A 14117 452 32 30 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 1109 445 10 TEDATA 24863 746 147 39 LINKdotNET AS number 36992 657 274 160 Etisalat MISR 3741 263 986 225 The Internet Solution 6713 203 199 12 Itissalat Al-MAGHRIB 29571 199 19 11 Ci Telecom Autonomous system 24835 198 78 10 RAYA Telecom - Egypt 2018 196 277 64 Tertiary Education Network 33776 184 12 14 Starcomms Nigeria Limited 16637 162 440 89 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 3736 3887 269 bellsouth.net, inc. 4323 2641 1077 400 Time Warner Telecom 4766 1874 9453 520 Korea Telecom (KIX) 19262 1834 4869 282 Verizon Global Networks 1785 1795 697 132 PaeTec Communications, Inc. 7545 1573 299 79 TPG Internet Pty Ltd 20115 1512 1531 640 Charter Communications 6478 1427 289 75 AT&T Worldnet Services 4755 1422 648 141 TATA Communications formerly 7018 1360 5652 873 AT&T WorldNet Services 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 2641 2241 Time Warner Telecom 1785 1795 1663 PaeTec Communications, Inc. 19262 1834 1552 Verizon Global Networks 7545 1573 1494 TPG Internet Pty Ltd 4766 1874 1354 Korea Telecom (KIX) 6478 1427 1352 AT&T Worldnet Services 17974 1331 1304 PT TELEKOMUNIKASI INDONESIA 4755 1422 1281 TATA Communications formerly 10620 1344 1188 TVCABLE BOGOTA 22773 1261 1187 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 46164 UNALLOCATED 4.23.88.0/24 7018 AT&T WorldNet Servic 46164 UNALLOCATED 4.23.89.0/24 7018 AT&T WorldNet Servic 46164 UNALLOCATED 4.23.92.0/23 7018 AT&T WorldNet Servic 46164 UNALLOCATED 4.23.94.0/23 7018 AT&T WorldNet Servic 46164 UNALLOCATED 4.38.0.0/21 7018 AT&T WorldNet Servic 46164 UNALLOCATED 4.38.8.0/21 7018 AT&T WorldNet Servic 46164 UNALLOCATED 4.43.50.0/24 7018 AT&T WorldNet Servic 46164 UNALLOCATED 4.43.51.0/24 7018 AT&T WorldNet Servic 46164 UNALLOCATED 4.67.96.0/21 7018 AT&T WorldNet Servic 46164 UNALLOCATED 4.67.104.0/21 7018 AT&T WorldNet Servic Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 5.0.0.0/16 12654 RIPE NCC RIS Project 5.1.0.0/21 12654 RIPE NCC RIS Project 5.1.24.0/24 12654 RIPE NCC RIS Project 24.129.192.0/19 7922 Continental Cablevision 37.0.0.0/16 12654 RIPE NCC RIS Project 37.1.0.0/21 12654 RIPE NCC RIS Project 37.1.24.0/24 12654 RIPE NCC RIS Project 41.222.79.0/24 36938 >>UNKNOWN<< 41.223.92.0/22 36936 >>UNKNOWN<< 46.164.128.0/18 21219 Datacom Autonomous System 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 /11:70 /12:210 /13:429 /14:751 /15:1338 /16:11355 /17:5518 /18:9199 /19:18627 /20:23904 /21:24216 /22:31803 /23:30778 /24:177411 /25:997 /26:1075 /27:572 /28:158 /29:12 /30:2 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2307 3736 bellsouth.net, inc. 4323 1430 2641 Time Warner Telecom 6478 1384 1427 AT&T Worldnet Services 10620 1236 1344 TVCABLE BOGOTA 11492 1213 1256 Cable One 18566 1070 1089 Covad Communications 7011 1069 1172 Citizens Utilities 1785 1068 1795 PaeTec Communications, Inc. 8452 972 1109 TEDATA 6503 960 1175 AVANTEL, S.A. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:128 2:16 4:13 5:1 8:316 12:2029 13:6 14:88 15:17 16:3 17:8 20:9 24:1423 27:488 32:61 33:6 34:2 36:1 37:1 38:718 40:101 41:2635 42:1 44:3 46:323 47:4 49:38 50:17 52:12 55:6 56:2 57:29 58:856 59:515 60:418 61:1127 62:1025 63:1938 64:3713 65:2319 66:4068 67:1758 68:1002 69:2825 70:716 71:389 72:1947 74:2279 75:287 76:319 77:870 78:738 79:437 80:1059 81:803 82:511 83:445 84:632 85:1040 86:488 87:705 88:406 89:1589 90:137 91:3309 92:457 93:1018 94:1098 95:698 96:406 97:246 98:698 99:33 101:3 107:2 108:69 109:800 110:469 111:668 112:309 113:323 114:482 115:676 116:1000 117:664 118:608 119:1007 120:198 121:731 122:1572 123:1031 124:1224 125:1232 128:232 129:153 130:170 131:567 132:230 133:20 134:208 135:47 136:213 137:148 138:289 139:110 140:477 141:196 142:352 143:516 144:487 145:54 146:424 147:179 148:641 149:326 150:150 151:230 152:295 153:172 154:3 155:367 156:166 157:339 158:126 159:369 160:311 161:197 162:276 163:165 164:434 165:334 166:470 167:420 168:737 169:151 170:723 171:67 172:2 173:1132 174:466 175:274 176:1 178:641 180:734 182:532 183:241 184:190 186:893 187:759 188:875 189:1009 190:4265 192:5786 193:4802 194:3468 195:2894 196:1205 197:1 198:3533 199:3670 200:5539 201:1582 202:8246 203:8368 204:4045 205:2344 206:2517 207:2978 208:3851 209:3477 210:2543 211:1314 212:1875 213:1730 214:727 215:62 216:4795 217:1616 218:522 219:403 220:1207 221:442 222:341 223:76 End of report
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