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 <pfsinoz@gmail.com>. Routing Table Report 04:00 +10GMT Sat 10 Dec, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 384553 Prefixes after maximum aggregation: 167591 Deaggregation factor: 2.29 Unique aggregates announced to Internet: 188778 Total ASes present in the Internet Routing Table: 39528 Prefixes per ASN: 9.73 Origin-only ASes present in the Internet Routing Table: 32469 Origin ASes announcing only one prefix: 15507 Transit ASes present in the Internet Routing Table: 5346 Transit-only ASes present in the Internet Routing Table: 144 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 33 Max AS path prepend of ASN (48687) 24 Prefixes from unregistered ASNs in the Routing Table: 1864 Unregistered ASNs in the Routing Table: 973 Number of 32-bit ASNs allocated by the RIRs: 2059 Number of 32-bit ASNs visible in the Routing Table: 1713 Prefixes from 32-bit ASNs in the Routing Table: 4069 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 82 Number of addresses announced to Internet: 2499466496 Equivalent to 148 /8s, 250 /16s and 213 /24s Percentage of available address space announced: 67.4 Percentage of allocated address space announced: 67.4 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.7 Total number of prefixes smaller than registry allocations: 162332 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 95338 Total APNIC prefixes after maximum aggregation: 31228 APNIC Deaggregation factor: 3.05 Prefixes being announced from the APNIC address blocks: 91808 Unique aggregates announced from the APNIC address blocks: 38427 APNIC Region origin ASes present in the Internet Routing Table: 4601 APNIC Prefixes per ASN: 19.95 APNIC Region origin ASes announcing only one prefix: 1248 APNIC Region transit ASes present in the Internet Routing Table: 727 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 119 Number of APNIC addresses announced to Internet: 631071072 Equivalent to 37 /8s, 157 /16s and 97 /24s Percentage of available APNIC address space announced: 80.0 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: 146344 Total ARIN prefixes after maximum aggregation: 74781 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 118441 Unique aggregates announced from the ARIN address blocks: 48663 ARIN Region origin ASes present in the Internet Routing Table: 14799 ARIN Prefixes per ASN: 8.00 ARIN Region origin ASes announcing only one prefix: 5662 ARIN Region transit ASes present in the Internet Routing Table: 1579 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: 803365568 Equivalent to 47 /8s, 226 /16s and 98 /24s Percentage of available ARIN address space announced: 63.8 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, 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: 93411 Total RIPE prefixes after maximum aggregation: 51508 RIPE Deaggregation factor: 1.81 Prefixes being announced from the RIPE address blocks: 85799 Unique aggregates announced from the RIPE address blocks: 55001 RIPE Region origin ASes present in the Internet Routing Table: 16170 RIPE Prefixes per ASN: 5.31 RIPE Region origin ASes announcing only one prefix: 7996 RIPE Region transit ASes present in the Internet Routing Table: 2557 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: 1199 Number of RIPE addresses announced to Internet: 493969856 Equivalent to 29 /8s, 113 /16s and 97 /24s Percentage of available RIPE address space announced: 79.6 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, 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: 36815 Total LACNIC prefixes after maximum aggregation: 7940 LACNIC Deaggregation factor: 4.64 Prefixes being announced from the LACNIC address blocks: 36277 Unique aggregates announced from the LACNIC address blocks: 18889 LACNIC Region origin ASes present in the Internet Routing Table: 1556 LACNIC Prefixes per ASN: 23.31 LACNIC Region origin ASes announcing only one prefix: 441 LACNIC Region transit ASes present in the Internet Routing Table: 289 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 18 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 379 Number of LACNIC addresses announced to Internet: 94673024 Equivalent to 5 /8s, 164 /16s and 152 /24s Percentage of available LACNIC address space announced: 62.7 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: 8406 Total AfriNIC prefixes after maximum aggregation: 2062 AfriNIC Deaggregation factor: 4.08 Prefixes being announced from the AfriNIC address blocks: 6460 Unique aggregates announced from the AfriNIC address blocks: 2059 AfriNIC Region origin ASes present in the Internet Routing Table: 503 AfriNIC Prefixes per ASN: 12.84 AfriNIC Region origin ASes announcing only one prefix: 160 AfriNIC Region transit ASes present in the Internet Routing Table: 110 Average AfriNIC Region AS path length visible: 4.5 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: 30395392 Equivalent to 1 /8s, 207 /16s and 204 /24s Percentage of available AfriNIC address space announced: 45.3 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 2509 11104 970 Korea Telecom (KIX) 17974 1694 503 38 PT TELEKOMUNIKASI INDONESIA 7545 1631 303 86 TPG Internet Pty Ltd 4755 1511 385 158 TATA Communications formerly 7552 1392 1064 7 Vietel Corporation 9829 1170 989 28 BSNL National Internet Backbo 9583 1099 81 496 Sify Limited 4808 1076 2034 303 CNCGROUP IP network: China169 24560 982 381 162 Bharti Airtel Ltd., Telemedia 18101 960 122 155 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 3481 3814 218 bellsouth.net, inc. 7029 2916 1017 200 Windstream Communications Inc 18566 2093 383 177 Covad Communications 1785 1855 680 121 PaeTec Communications, Inc. 4323 1617 1073 385 Time Warner Telecom 20115 1602 1548 628 Charter Communications 22773 1505 2909 104 Cox Communications, Inc. 30036 1443 258 675 Mediacom Communications Corp 19262 1388 4683 401 Verizon Global Networks 7018 1309 7029 858 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 1581 480 15 Corbina telecom 6830 644 1927 412 UPC Distribution Services 34984 624 132 201 BILISIM TELEKOM 2118 550 99 14 EUnet/RELCOM Autonomous Syste 20940 544 174 434 Akamai Technologies European 3320 528 8161 394 Deutsche Telekom AG 12479 493 601 12 Uni2 Autonomous System 3292 480 2106 407 TDC Tele Danmark 8866 462 133 26 Bulgarian Telecommunication C 8551 423 366 45 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 1720 318 155 TVCABLE BOGOTA 28573 1549 1059 72 NET Servicos de Comunicao S.A 8151 1459 2985 349 UniNet S.A. de C.V. 7303 1239 751 174 Telecom Argentina Stet-France 27947 617 72 91 Telconet S.A 22047 582 322 17 VTR PUNTO NET S.A. 6503 554 434 68 AVANTEL, S.A. 7738 553 1050 31 Telecomunicacoes da Bahia S.A 3816 547 237 89 Empresa Nacional de Telecomun 11172 528 86 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 8452 963 958 13 TEDATA 24863 785 146 35 LINKdotNET AS number 3741 281 939 230 The Internet Solution 15706 242 32 6 Sudatel Internet Exchange Aut 33776 240 13 8 Starcomms Nigeria Limited 6713 235 519 14 Itissalat Al-MAGHRIB 29571 217 17 13 Ci Telecom Autonomous system 12258 195 28 60 Vodacom Internet Company 24835 193 80 8 RAYA Telecom - Egypt 16637 164 664 83 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 3481 3814 218 bellsouth.net, inc. 7029 2916 1017 200 Windstream Communications Inc 4766 2509 11104 970 Korea Telecom (KIX) 18566 2093 383 177 Covad Communications 1785 1855 680 121 PaeTec Communications, Inc. 10620 1720 318 155 TVCABLE BOGOTA 17974 1694 503 38 PT TELEKOMUNIKASI INDONESIA 7545 1631 303 86 TPG Internet Pty Ltd 4323 1617 1073 385 Time Warner Telecom 20115 1602 1548 628 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 2916 2716 Windstream Communications Inc 18566 2093 1916 Covad Communications 1785 1855 1734 PaeTec Communications, Inc. 17974 1694 1656 PT TELEKOMUNIKASI INDONESIA 8402 1581 1566 Corbina telecom 10620 1720 1565 TVCABLE BOGOTA 7545 1631 1545 TPG Internet Pty Ltd 4766 2509 1539 Korea Telecom (KIX) 28573 1549 1477 NET Servicos de Comunicao S.A 22773 1505 1401 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 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 128.0.24.0/24 12654 RIPE NCC RIS Project Complete listing at http://thyme.rand.apnic.net/current/data-dsua Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 37.0.24.0/21 50794 AS Levira 37.1.88.0/21 50763 MCKAYCOM LTD 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 66.171.32.0/20 705 UUNET Technologies, Inc. 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 /14:812 /15:1442 /16:12042 /17:6104 /18:10146 /19:20068 /20:27797 /21:28040 /22:38213 /23:35782 /24:199713 /25:1176 /26:1417 /27:783 /28:170 /29:3 /30:0 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 7029 2545 2916 Windstream Communications Inc 6389 2124 3481 bellsouth.net, inc. 18566 2042 2093 Covad Communications 10620 1615 1720 TVCABLE BOGOTA 8402 1556 1581 Corbina telecom 30036 1403 1443 Mediacom Communications Corp 11492 1116 1153 Cable One 1785 1060 1855 PaeTec Communications, Inc. 7011 1050 1166 Citizens Utilities 22773 966 1505 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:445 2:483 4:15 5:1 6:3 8:360 12:1944 13:1 14:557 15:11 16:3 17:7 20:9 23:72 24:1699 27:1113 31:721 32:67 33:2 34:2 36:4 38:771 39:1 40:114 41:2895 42:69 43:1 44:3 46:1127 47:3 49:228 50:459 52:13 55:5 56:2 57:45 58:945 59:487 60:342 61:1176 62:912 63:1970 64:4079 65:2307 66:4364 67:2004 68:1178 69:3141 70:916 71:362 72:1776 74:2639 75:431 76:319 77:937 78:886 79:439 80:1142 81:847 82:521 83:529 84:470 85:1169 86:409 87:910 88:353 89:1589 90:247 91:4340 92:539 93:1408 94:1324 95:1131 96:395 97:285 98:784 99:38 101:122 103:538 106:8 107:106 108:95 109:1096 110:670 111:823 112:375 113:485 114:617 115:703 116:876 117:712 118:878 119:1240 120:343 121:681 122:1557 123:1022 124:1365 125:1341 128:275 129:189 130:181 131:579 132:158 133:21 134:221 135:55 136:212 137:147 138:286 139:123 140:491 141:254 142:382 143:404 144:505 145:66 146:474 147:222 148:638 149:272 150:165 151:192 152:445 153:171 154:7 155:380 156:209 157:358 158:156 159:503 160:334 161:221 162:363 163:183 164:523 165:387 166:542 167:459 168:818 169:146 170:823 171:90 172:4 173:1786 174:591 175:415 176:339 177:429 178:1138 180:1173 181:38 182:675 183:253 184:399 185:1 186:1480 187:785 188:939 189:1173 190:5288 192:5969 193:5121 194:3797 195:3366 196:1273 197:172 198:3618 199:4216 200:5543 201:1702 202:8486 203:8523 204:4328 205:2404 206:2670 207:2842 208:4015 209:3558 210:2755 211:1469 212:1982 213:1795 214:822 215:92 216:4934 217:1488 218:578 219:344 220:1250 221:529 222:326 223:262 End of report