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, TRNOG, 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 18 Feb, 2012 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 398152 Prefixes after maximum aggregation: 169962 Deaggregation factor: 2.34 Unique aggregates announced to Internet: 192387 Total ASes present in the Internet Routing Table: 40142 Prefixes per ASN: 9.92 Origin-only ASes present in the Internet Routing Table: 32774 Origin ASes announcing only one prefix: 15521 Transit ASes present in the Internet Routing Table: 5396 Transit-only ASes present in the Internet Routing Table: 143 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: 324 Unregistered ASNs in the Routing Table: 127 Number of 32-bit ASNs allocated by the RIRs: 2284 Number of 32-bit ASNs visible in the Routing Table: 1972 Prefixes from 32-bit ASNs in the Routing Table: 4748 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 225 Number of addresses announced to Internet: 2516085584 Equivalent to 149 /8s, 248 /16s and 107 /24s Percentage of available address space announced: 67.9 Percentage of allocated address space announced: 67.9 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 92.0 Total number of prefixes smaller than registry allocations: 169239 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 98012 Total APNIC prefixes after maximum aggregation: 31831 APNIC Deaggregation factor: 3.08 Prefixes being announced from the APNIC address blocks: 94322 Unique aggregates announced from the APNIC address blocks: 39128 APNIC Region origin ASes present in the Internet Routing Table: 4661 APNIC Prefixes per ASN: 20.24 APNIC Region origin ASes announcing only one prefix: 1240 APNIC Region transit ASes present in the Internet Routing Table: 738 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 149 Number of APNIC addresses announced to Internet: 636127072 Equivalent to 37 /8s, 234 /16s and 135 /24s Percentage of available APNIC address space announced: 80.7 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: 148390 Total ARIN prefixes after maximum aggregation: 75337 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 120289 Unique aggregates announced from the ARIN address blocks: 49478 ARIN Region origin ASes present in the Internet Routing Table: 14911 ARIN Prefixes per ASN: 8.07 ARIN Region origin ASes announcing only one prefix: 5685 ARIN Region transit ASes present in the Internet Routing Table: 1565 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 22 Number of ARIN region 32-bit ASNs visible in the Routing Table: 15 Number of ARIN addresses announced to Internet: 805086400 Equivalent to 47 /8s, 252 /16s and 164 /24s Percentage of available ARIN address space announced: 64.0 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: 99249 Total RIPE prefixes after maximum aggregation: 52504 RIPE Deaggregation factor: 1.89 Prefixes being announced from the RIPE address blocks: 90947 Unique aggregates announced from the RIPE address blocks: 55992 RIPE Region origin ASes present in the Internet Routing Table: 16316 RIPE Prefixes per ASN: 5.57 RIPE Region origin ASes announcing only one prefix: 7989 RIPE Region transit ASes present in the Internet Routing Table: 2603 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: 1356 Number of RIPE addresses announced to Internet: 501182472 Equivalent to 29 /8s, 223 /16s and 112 /24s Percentage of available RIPE address space announced: 80.7 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: 38624 Total LACNIC prefixes after maximum aggregation: 8109 LACNIC Deaggregation factor: 4.76 Prefixes being announced from the LACNIC address blocks: 38253 Unique aggregates announced from the LACNIC address blocks: 19501 LACNIC Region origin ASes present in the Internet Routing Table: 1574 LACNIC Prefixes per ASN: 24.30 LACNIC Region origin ASes announcing only one prefix: 443 LACNIC Region transit ASes present in the Internet Routing Table: 291 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 24 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 448 Number of LACNIC addresses announced to Internet: 96604808 Equivalent to 5 /8s, 194 /16s and 18 /24s Percentage of available LACNIC address space announced: 64.0 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: 8956 Total AfriNIC prefixes after maximum aggregation: 2096 AfriNIC Deaggregation factor: 4.27 Prefixes being announced from the AfriNIC address blocks: 6976 Unique aggregates announced from the AfriNIC address blocks: 2176 AfriNIC Region origin ASes present in the Internet Routing Table: 514 AfriNIC Prefixes per ASN: 13.57 AfriNIC Region origin ASes announcing only one prefix: 164 AfriNIC Region transit ASes present in the Internet Routing Table: 118 Average AfriNIC Region AS path length visible: 4.4 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: 30956544 Equivalent to 1 /8s, 216 /16s and 92 /24s Percentage of available AfriNIC address space announced: 46.1 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 2485 11107 989 Korea Telecom (KIX) 17974 1729 501 36 PT TELEKOMUNIKASI INDONESIA 7545 1643 303 86 TPG Internet Pty Ltd 4755 1550 385 160 TATA Communications formerly 7552 1267 1064 7 Vietel Corporation 9829 1181 997 29 BSNL National Internet Backbo 4808 1149 2114 318 CNCGROUP IP network: China169 9583 1124 84 482 Sify Limited 24560 1019 385 167 Bharti Airtel Ltd., Telemedia 18101 950 130 156 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 3440 3807 201 bellsouth.net, inc. 7029 3389 1014 159 Windstream Communications Inc 18566 2091 382 177 Covad Communications 1785 1871 680 126 PaeTec Communications, Inc. 20115 1627 1550 630 Charter Communications 4323 1608 1062 384 Time Warner Telecom 22773 1527 2910 110 Cox Communications, Inc. 30036 1400 248 750 Mediacom Communications Corp 19262 1388 4703 397 Verizon Global Networks 7018 1307 6996 848 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 1768 480 15 Corbina telecom 2118 1399 97 13 EUnet/RELCOM Autonomous Syste 15557 1098 2184 60 LDCOM NETWORKS 34984 653 188 173 BILISIM TELEKOM 6830 644 1927 413 UPC Distribution Services 20940 615 198 472 Akamai Technologies European 12479 605 643 54 Uni2 Autonomous System 8551 576 360 81 Bezeq International 31148 538 37 9 FreeNet ISP 3320 533 8450 399 Deutsche Telekom AG 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 1744 323 172 TVCABLE BOGOTA 28573 1671 1085 65 NET Servicos de Comunicao S.A 8151 1475 3007 345 UniNet S.A. de C.V. 7303 1263 758 182 Telecom Argentina Stet-France 26615 860 672 33 Tim Brasil S.A. 27947 661 67 108 Telconet S.A 11172 631 91 73 Servicios Alestra S.A de C.V 22047 581 322 17 VTR PUNTO NET S.A. 6503 552 418 66 AVANTEL, S.A. 3816 551 237 91 Empresa Nacional de Telecomun 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 1232 958 13 TEDATA 24863 830 156 44 LINKdotNET AS number 6713 489 649 18 Itissalat Al-MAGHRIB 3741 278 939 229 The Internet Solution 33776 237 13 14 Starcomms Nigeria Limited 15706 222 32 6 Sudatel Internet Exchange Aut 29571 214 17 12 Ci Telecom Autonomous system 12258 197 28 62 Vodacom Internet Company 24835 194 80 8 RAYA Telecom - Egypt 16637 163 664 82 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 3440 3807 201 bellsouth.net, inc. 7029 3389 1014 159 Windstream Communications Inc 4766 2485 11107 989 Korea Telecom (KIX) 18566 2091 382 177 Covad Communications 1785 1871 680 126 PaeTec Communications, Inc. 8402 1768 480 15 Corbina telecom 10620 1744 323 172 TVCABLE BOGOTA 17974 1729 501 36 PT TELEKOMUNIKASI INDONESIA 28573 1671 1085 65 NET Servicos de Comunicao S.A 7545 1643 303 86 TPG Internet Pty Ltd 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 3389 3230 Windstream Communications Inc 18566 2091 1914 Covad Communications 8402 1768 1753 Corbina telecom 1785 1871 1745 PaeTec Communications, Inc. 17974 1729 1693 PT TELEKOMUNIKASI INDONESIA 28573 1671 1606 NET Servicos de Comunicao S.A 10620 1744 1572 TVCABLE BOGOTA 7545 1643 1557 TPG Internet Pty Ltd 4766 2485 1496 Korea Telecom (KIX) 22773 1527 1417 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 14.192.0.0/22 45464 Room 201, TGU Bldg 14.192.4.0/22 45464 Room 201, TGU Bldg 14.192.8.0/22 45464 Room 201, TGU Bldg 14.192.12.0/22 45464 Room 201, TGU Bldg 14.192.16.0/22 45464 Room 201, TGU Bldg 14.192.20.0/22 45464 Room 201, TGU Bldg 14.192.24.0/22 45464 Room 201, TGU Bldg 14.192.28.0/22 45464 Room 201, TGU Bldg 23.27.0.0/16 18779 Guru.com 27.112.114.0/24 23884 Proimage Engineering and Comm 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 /11:80 /12:231 /13:458 /14:814 /15:1471 /16:12149 /17:6211 /18:10346 /19:20464 /20:28291 /21:29265 /22:39904 /23:37028 /24:207711 /25:1186 /26:1449 /27:779 /28:168 /29:57 /30:14 /31:0 /32:18 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 7029 3045 3389 Windstream Communications Inc 6389 2110 3440 bellsouth.net, inc. 18566 2040 2091 Covad Communications 8402 1747 1768 Corbina telecom 10620 1641 1744 TVCABLE BOGOTA 30036 1354 1400 Mediacom Communications Corp 11492 1118 1155 Cable One 1785 1064 1871 PaeTec Communications, Inc. 15557 1045 1098 LDCOM NETWORKS 8452 1042 1232 TEDATA Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:505 2:740 4:14 5:1 6:3 8:384 12:1960 13:1 14:597 15:11 16:3 17:7 20:8 23:135 24:1730 27:1186 31:945 32:65 33:2 34:2 36:9 37:186 38:781 40:115 41:3149 42:96 43:1 44:3 46:1298 47:3 49:331 50:501 52:13 54:2 55:10 56:3 57:38 58:966 59:494 60:344 61:1195 62:949 63:2005 64:4148 65:2284 66:4452 67:2034 68:1174 69:3163 70:934 71:412 72:1795 74:2658 75:463 76:320 77:979 78:948 79:486 80:1212 81:879 82:604 83:523 84:587 85:1153 86:749 87:914 88:338 89:1556 90:282 91:4472 92:530 93:1349 94:1378 95:1116 96:418 97:311 98:812 99:38 100:4 101:144 103:805 106:65 107:155 108:168 109:1489 110:700 111:851 112:437 113:527 114:602 115:765 116:862 117:710 118:903 119:1254 120:361 121:685 122:1624 123:1082 124:1333 125:1325 128:538 129:190 130:216 131:588 132:166 133:21 134:234 135:62 136:215 137:182 138:288 139:145 140:490 141:263 142:394 143:403 144:509 145:69 146:483 147:237 148:732 149:282 150:172 151:198 152:447 153:170 154:7 155:408 156:212 157:367 158:160 159:512 160:321 161:245 162:341 163:187 164:531 165:395 166:558 167:458 168:762 169:147 170:838 171:114 172:4 173:1722 174:592 175:421 176:516 177:503 178:1255 180:1180 181:67 182:726 183:280 184:430 185:1 186:2013 187:846 188:1070 189:1172 190:5504 192:5979 193:5532 194:4341 195:3402 196:1289 197:164 198:3622 199:4393 200:5704 201:1742 202:8419 203:8619 204:4369 205:2440 206:2744 207:2781 208:4076 209:3557 210:2760 211:1481 212:2011 213:1838 214:857 215:91 216:5029 217:1488 218:551 219:337 220:1225 221:561 222:324 223:313 End of report