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[routing-wg] Weekly Routing Table Report
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Routing Analysis Role Account
cscora at apnic.net
Fri Nov 4 20:17:41 CET 2011
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 <pfsinoz at gmail.com>. Routing Table Report 04:00 +10GMT Sat 05 Nov, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 380959 Prefixes after maximum aggregation: 166564 Deaggregation factor: 2.29 Unique aggregates announced to Internet: 187114 Total ASes present in the Internet Routing Table: 39222 Prefixes per ASN: 9.71 Origin-only ASes present in the Internet Routing Table: 32367 Origin ASes announcing only one prefix: 15483 Transit ASes present in the Internet Routing Table: 5264 Transit-only ASes present in the Internet Routing Table: 133 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 33 Max AS path prepend of ASN (48687) 24 Prefixes from unregistered ASNs in the Routing Table: 1628 Unregistered ASNs in the Routing Table: 862 Number of 32-bit ASNs allocated by the RIRs: 1925 Number of 32-bit ASNs visible in the Routing Table: 1591 Prefixes from 32-bit ASNs in the Routing Table: 3686 Special use prefixes present in the Routing Table: 3 Prefixes being announced from unallocated address space: 86 Number of addresses announced to Internet: 2489977408 Equivalent to 148 /8s, 106 /16s and 10 /24s Percentage of available address space announced: 67.2 Percentage of allocated address space announced: 67.2 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.6 Total number of prefixes smaller than registry allocations: 160771 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 94863 Total APNIC prefixes after maximum aggregation: 31059 APNIC Deaggregation factor: 3.05 Prefixes being announced from the APNIC address blocks: 91315 Unique aggregates announced from the APNIC address blocks: 38279 APNIC Region origin ASes present in the Internet Routing Table: 4595 APNIC Prefixes per ASN: 19.87 APNIC Region origin ASes announcing only one prefix: 1270 APNIC Region transit ASes present in the Internet Routing Table: 716 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 21 Number of APNIC region 32-bit ASNs visible in the Routing Table: 101 Number of APNIC addresses announced to Internet: 629651296 Equivalent to 37 /8s, 135 /16s and 183 /24s Percentage of available APNIC address space announced: 79.9 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 131072-132095, 132096-133119 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 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: 145925 Total ARIN prefixes after maximum aggregation: 74475 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 117809 Unique aggregates announced from the ARIN address blocks: 48321 ARIN Region origin ASes present in the Internet Routing Table: 14739 ARIN Prefixes per ASN: 7.99 ARIN Region origin ASes announcing only one prefix: 5639 ARIN Region transit ASes present in the Internet Routing Table: 1559 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 25 Number of ARIN region 32-bit ASNs visible in the Routing Table: 12 Number of ARIN addresses announced to Internet: 804645888 Equivalent to 47 /8s, 245 /16s and 236 /24s Percentage of available ARIN address space announced: 63.9 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, 45/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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, 104/8, 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: 91828 Total RIPE prefixes after maximum aggregation: 51035 RIPE Deaggregation factor: 1.80 Prefixes being announced from the RIPE address blocks: 84299 Unique aggregates announced from the RIPE address blocks: 54500 RIPE Region origin ASes present in the Internet Routing Table: 16084 RIPE Prefixes per ASN: 5.24 RIPE Region origin ASes announcing only one prefix: 7968 RIPE Region transit ASes present in the Internet Routing Table: 2531 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 33 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1108 Number of RIPE addresses announced to Internet: 491707840 Equivalent to 29 /8s, 78 /16s and 221 /24s Percentage of available RIPE address space announced: 79.2 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, 56320-58367 196608-198655 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, 185/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 35936 Total LACNIC prefixes after maximum aggregation: 7912 LACNIC Deaggregation factor: 4.54 Prefixes being announced from the LACNIC address blocks: 35352 Unique aggregates announced from the LACNIC address blocks: 18553 LACNIC Region origin ASes present in the Internet Routing Table: 1545 LACNIC Prefixes per ASN: 22.88 LACNIC Region origin ASes announcing only one prefix: 446 LACNIC Region transit ASes present in the Internet Routing Table: 281 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 19 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 366 Number of LACNIC addresses announced to Internet: 92827520 Equivalent to 5 /8s, 136 /16s and 111 /24s Percentage of available LACNIC address space announced: 61.5 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 179/8, 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: 8537 Total AfriNIC prefixes after maximum aggregation: 2007 AfriNIC Deaggregation factor: 4.25 Prefixes being announced from the AfriNIC address blocks: 6608 Unique aggregates announced from the AfriNIC address blocks: 1974 AfriNIC Region origin ASes present in the Internet Routing Table: 491 AfriNIC Prefixes per ASN: 13.46 AfriNIC Region origin ASes announcing only one prefix: 160 AfriNIC Region transit ASes present in the Internet Routing Table: 108 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 25 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4 Number of AfriNIC addresses announced to Internet: 27570432 Equivalent to 1 /8s, 164 /16s and 177 /24s Percentage of available AfriNIC address space announced: 41.1 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 2514 11129 974 Korea Telecom (KIX) 17974 1630 511 36 PT TELEKOMUNIKASI INDONESIA 7545 1614 303 87 TPG Internet Pty Ltd 4755 1548 637 174 TATA Communications formerly 7552 1394 1064 7 Vietel Corporation 9829 1166 989 28 BSNL National Internet Backbo 9583 1092 80 500 Sify Limited 4808 1090 2103 312 CNCGROUP IP network: China169 24560 964 343 218 Bharti Airtel Ltd., Telemedia 18101 954 135 150 Reliance Infocom Ltd Internet 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 3547 3814 223 bellsouth.net, inc. 7029 2337 1016 198 Windstream Communications Inc 18566 2094 383 177 Covad Communications 1785 1844 680 122 PaeTec Communications, Inc. 4323 1623 1078 389 Time Warner Telecom 20115 1596 1547 621 Charter Communications 22773 1462 2907 100 Cox Communications, Inc. 30036 1402 254 671 Mediacom Communications Corp 19262 1395 4728 400 Verizon Global Networks 7018 1317 7045 862 AT&T WorldNet Services 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 8402 1449 416 14 Corbina telecom 6830 650 1927 414 UPC Distribution Services 34984 596 110 184 BILISIM TELEKOM 12479 545 628 51 Uni2 Autonomous System 20940 542 179 425 Akamai Technologies European 3320 507 8169 387 Deutsche Telekom AG 3292 481 2074 406 TDC Tele Danmark 8866 461 133 26 Bulgarian Telecommunication C 31148 406 22 114 FreeNet ISP 8551 402 354 43 Bezeq International 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 1699 314 156 TVCABLE BOGOTA 28573 1479 1043 79 NET Servicos de Comunicao S.A 8151 1430 2937 346 UniNet S.A. de C.V. 7303 1236 751 171 Telecom Argentina Stet-France 27947 591 72 84 Telconet S.A 22047 580 322 17 VTR PUNTO NET S.A. 6503 565 434 68 AVANTEL, S.A. 7738 553 1050 31 Telecomunicacoes da Bahia S.A 3816 537 233 95 Empresa Nacional de Telecomun 11172 524 85 95 Servicios Alestra S.A de C.V 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 24863 801 146 36 LINKdotNET AS number 8452 652 446 12 TEDATA 15475 443 74 8 Nile Online 36992 285 415 21 Etisalat MISR 3741 281 939 230 The Internet Solution 15706 240 32 6 Sudatel Internet Exchange Aut 33776 239 13 8 Starcomms Nigeria Limited 6713 235 519 14 Itissalat Al-MAGHRIB 29571 218 17 13 Ci Telecom Autonomous system 12258 196 28 57 Vodacom Internet Company 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 3547 3814 223 bellsouth.net, inc. 4766 2514 11129 974 Korea Telecom (KIX) 7029 2337 1016 198 Windstream Communications Inc 18566 2094 383 177 Covad Communications 1785 1844 680 122 PaeTec Communications, Inc. 10620 1699 314 156 TVCABLE BOGOTA 17974 1630 511 36 PT TELEKOMUNIKASI INDONESIA 4323 1623 1078 389 Time Warner Telecom 7545 1614 303 87 TPG Internet Pty Ltd 20115 1596 1547 621 Charter Communications Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 7029 2337 2139 Windstream Communications Inc 18566 2094 1917 Covad Communications 1785 1844 1722 PaeTec Communications, Inc. 17974 1630 1594 PT TELEKOMUNIKASI INDONESIA 10620 1699 1543 TVCABLE BOGOTA 4766 2514 1540 Korea Telecom (KIX) 7545 1614 1527 TPG Internet Pty Ltd 8402 1449 1435 Corbina telecom 28573 1479 1400 NET Servicos de Comunicao S.A 7552 1394 1387 Vietel Corporation Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom 32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic 13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic 23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic 17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic 17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies, 16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic 32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser Complete listing at http://thyme.rand.apnic.net/current/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 128.0.0.0/21 12654 RIPE NCC RIS Project 128.0.0.0/16 12654 RIPE NCC RIS Project 128.0.24.0/24 12654 RIPE NCC RIS Project Complete listing at http://thyme.rand.apnic.net/current/data-dsua Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.225.128.0/18 36377 Comcast Telecommunications, I 24.225.192.0/23 36377 Comcast Telecommunications, I 24.225.192.0/18 36377 Comcast Telecommunications, I 24.225.224.0/21 36377 Comcast Telecommunications, I 24.225.237.0/24 36377 Comcast Telecommunications, I 24.225.248.0/21 36377 Comcast Telecommunications, I 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 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 /9:12 /10:27 /11:81 /12:236 /13:465 /14:809 /15:1422 /16:12027 /17:6052 /18:10085 /19:19946 /20:27559 /21:27705 /22:37171 /23:35262 /24:198635 /25:1153 /26:1357 /27:761 /28:166 /29:4 /30:0 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2187 3547 bellsouth.net, inc. 18566 2043 2094 Covad Communications 7029 2005 2337 Windstream Communications Inc 10620 1594 1699 TVCABLE BOGOTA 8402 1424 1449 Corbina telecom 30036 1363 1402 Mediacom Communications Corp 11492 1117 1155 Cable One 1785 1057 1844 PaeTec Communications, Inc. 7011 1051 1169 Citizens Utilities 22773 950 1462 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:416 2:476 4:15 5:1 6:3 8:361 12:1955 13:1 14:541 15:11 16:3 17:7 20:9 23:58 24:1682 27:1024 31:673 32:65 33:2 34:2 36:4 38:758 40:110 41:2691 42:55 44:3 46:1025 47:3 49:299 50:443 52:13 55:6 56:2 57:47 58:902 59:497 60:361 61:1115 62:1086 63:1966 64:4057 65:2302 66:4278 67:2003 68:1163 69:3184 70:882 71:384 72:1802 74:2608 75:388 76:316 77:963 78:874 79:480 80:1131 81:844 82:520 83:528 84:619 85:1153 86:398 87:976 88:356 89:1593 90:235 91:4255 92:535 93:1536 94:1300 95:1088 96:428 97:286 98:936 99:37 101:225 103:432 106:70 107:84 108:72 109:1155 110:661 111:797 112:341 113:486 114:620 115:715 116:882 117:723 118:877 119:1265 120:344 121:695 122:1572 123:1007 124:1352 125:1355 128:245 129:189 130:164 131:627 132:148 133:21 134:221 135:54 136:212 137:142 138:286 139:122 140:489 141:317 142:389 143:410 144:491 145:64 146:465 147:220 148:641 149:267 150:169 151:194 152:447 153:178 154:7 155:385 156:208 157:361 158:155 159:485 160:333 161:214 162:371 163:173 164:511 165:369 166:540 167:439 168:820 169:145 170:880 171:86 172:4 173:1708 174:679 175:417 176:278 177:369 178:1082 180:1139 181:38 182:653 183:221 184:387 185:1 186:1328 187:764 188:1061 189:1147 190:5167 192:5931 193:5050 194:3558 195:3112 196:1265 197:167 198:3629 199:4175 200:5513 201:1695 202:8573 203:8478 204:4315 205:2370 206:2674 207:2820 208:4037 209:3580 210:2720 211:1457 212:2083 213:1780 214:813 215:95 216:4918 217:1603 218:564 219:342 220:1254 221:517 222:322 223:269 End of report
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