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 25 Feb, 2012 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 398370 Prefixes after maximum aggregation: 170083 Deaggregation factor: 2.34 Unique aggregates announced to Internet: 193498 Total ASes present in the Internet Routing Table: 40222 Prefixes per ASN: 9.90 Origin-only ASes present in the Internet Routing Table: 32798 Origin ASes announcing only one prefix: 15535 Transit ASes present in the Internet Routing Table: 5416 Transit-only ASes present in the Internet Routing Table: 144 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: 321 Unregistered ASNs in the Routing Table: 131 Number of 32-bit ASNs allocated by the RIRs: 2294 Number of 32-bit ASNs visible in the Routing Table: 2008 Prefixes from 32-bit ASNs in the Routing Table: 4823 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 303 Number of addresses announced to Internet: 2521478992 Equivalent to 150 /8s, 74 /16s and 183 /24s Percentage of available address space announced: 68.0 Percentage of allocated address space announced: 68.0 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: 169400 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 97749 Total APNIC prefixes after maximum aggregation: 31742 APNIC Deaggregation factor: 3.08 Prefixes being announced from the APNIC address blocks: 94211 Unique aggregates announced from the APNIC address blocks: 39264 APNIC Region origin ASes present in the Internet Routing Table: 4664 APNIC Prefixes per ASN: 20.20 APNIC Region origin ASes announcing only one prefix: 1235 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: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 151 Number of APNIC addresses announced to Internet: 639946592 Equivalent to 38 /8s, 36 /16s and 207 /24s Percentage of available APNIC address space announced: 81.2 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: 148408 Total ARIN prefixes after maximum aggregation: 75382 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 120229 Unique aggregates announced from the ARIN address blocks: 49575 ARIN Region origin ASes present in the Internet Routing Table: 14921 ARIN Prefixes per ASN: 8.06 ARIN Region origin ASes announcing only one prefix: 5683 ARIN Region transit ASes present in the Internet Routing Table: 1575 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: 805439424 Equivalent to 48 /8s, 2 /16s and 7 /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: 99486 Total RIPE prefixes after maximum aggregation: 52692 RIPE Deaggregation factor: 1.89 Prefixes being announced from the RIPE address blocks: 91151 Unique aggregates announced from the RIPE address blocks: 56714 RIPE Region origin ASes present in the Internet Routing Table: 16336 RIPE Prefixes per ASN: 5.58 RIPE Region origin ASes announcing only one prefix: 8012 RIPE Region transit ASes present in the Internet Routing Table: 2613 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: 1380 Number of RIPE addresses announced to Internet: 500978952 Equivalent to 29 /8s, 220 /16s and 85 /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: 38762 Total LACNIC prefixes after maximum aggregation: 8083 LACNIC Deaggregation factor: 4.80 Prefixes being announced from the LACNIC address blocks: 38441 Unique aggregates announced from the LACNIC address blocks: 19555 LACNIC Region origin ASes present in the Internet Routing Table: 1576 LACNIC Prefixes per ASN: 24.39 LACNIC Region origin ASes announcing only one prefix: 442 LACNIC Region transit ASes present in the Internet Routing Table: 289 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 17 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 458 Number of LACNIC addresses announced to Internet: 97295240 Equivalent to 5 /8s, 204 /16s and 155 /24s Percentage of available LACNIC address space announced: 64.4 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: 8970 Total AfriNIC prefixes after maximum aggregation: 2091 AfriNIC Deaggregation factor: 4.29 Prefixes being announced from the AfriNIC address blocks: 6985 Unique aggregates announced from the AfriNIC address blocks: 2124 AfriNIC Region origin ASes present in the Internet Routing Table: 517 AfriNIC Prefixes per ASN: 13.51 AfriNIC Region origin ASes announcing only one prefix: 163 AfriNIC Region transit ASes present in the Internet Routing Table: 116 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: 31523072 Equivalent to 1 /8s, 225 /16s and 1 /24s Percentage of available AfriNIC address space announced: 47.0 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 991 Korea Telecom (KIX) 17974 1725 503 36 PT TELEKOMUNIKASI INDONESIA 7545 1642 303 86 TPG Internet Pty Ltd 4755 1557 385 157 TATA Communications formerly 7552 1282 1064 7 Vietel Corporation 4808 1148 2112 319 CNCGROUP IP network: China169 9583 1126 84 483 Sify Limited 9829 1106 996 29 BSNL National Internet Backbo 24560 1011 385 167 Bharti Airtel Ltd., Telemedia 18101 949 130 155 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 3433 3807 199 bellsouth.net, inc. 7029 3416 1014 159 Windstream Communications Inc 18566 2091 382 177 Covad Communications 1785 1873 680 126 PaeTec Communications, Inc. 20115 1629 1551 630 Charter Communications 4323 1607 1043 381 Time Warner Telecom 22773 1536 2910 110 Cox Communications, Inc. 30036 1415 254 745 Mediacom Communications Corp 19262 1388 4703 398 Verizon Global Networks 7018 1311 6980 851 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 1753 480 15 Corbina telecom 2118 1398 97 13 EUnet/RELCOM Autonomous Syste 15557 1099 2184 60 LDCOM NETWORKS 34984 656 188 173 BILISIM TELEKOM 6830 644 1927 413 UPC Distribution Services 20940 627 203 480 Akamai Technologies European 12479 608 644 55 Uni2 Autonomous System 8551 565 360 81 Bezeq International 31148 541 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 1751 324 171 TVCABLE BOGOTA 28573 1685 1088 62 NET Servicos de Comunicao S.A 8151 1483 3011 349 UniNet S.A. de C.V. 7303 1326 822 186 Telecom Argentina Stet-France 26615 881 668 32 Tim Brasil S.A. 27947 662 67 108 Telconet S.A 11172 632 91 72 Servicios Alestra S.A de C.V 22047 581 322 17 VTR PUNTO NET S.A. 6503 576 418 66 AVANTEL, S.A. 3816 554 237 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 1254 958 13 TEDATA 24863 834 274 37 LINKdotNET AS number 6713 489 649 18 Itissalat Al-MAGHRIB 3741 277 923 228 The Internet Solution 15706 227 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 33776 182 12 20 Starcomms Nigeria Limited 16637 157 647 81 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 3433 3807 199 bellsouth.net, inc. 7029 3416 1014 159 Windstream Communications Inc 4766 2485 11107 991 Korea Telecom (KIX) 18566 2091 382 177 Covad Communications 1785 1873 680 126 PaeTec Communications, Inc. 8402 1753 480 15 Corbina telecom 10620 1751 324 171 TVCABLE BOGOTA 17974 1725 503 36 PT TELEKOMUNIKASI INDONESIA 28573 1685 1088 62 NET Servicos de Comunicao S.A 7545 1642 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 3416 3257 Windstream Communications Inc 18566 2091 1914 Covad Communications 1785 1873 1747 PaeTec Communications, Inc. 8402 1753 1738 Corbina telecom 17974 1725 1689 PT TELEKOMUNIKASI INDONESIA 28573 1685 1623 NET Servicos de Comunicao S.A 10620 1751 1580 TVCABLE BOGOTA 7545 1642 1556 TPG Internet Pty Ltd 4766 2485 1494 Korea Telecom (KIX) 22773 1536 1426 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 /10:28 /11:81 /12:232 /13:459 /14:812 /15:1473 /16:12149 /17:6216 /18:10375 /19:20480 /20:28362 /21:29291 /22:39795 /23:37056 /24:207890 /25:1174 /26:1425 /27:782 /28:170 /29:56 /30:14 /31:0 /32:19 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 7029 3070 3416 Windstream Communications Inc 6389 2107 3433 bellsouth.net, inc. 18566 2040 2091 Covad Communications 8402 1732 1753 Corbina telecom 10620 1648 1751 TVCABLE BOGOTA 30036 1365 1415 Mediacom Communications Corp 11492 1122 1159 Cable One 1785 1064 1873 PaeTec Communications, Inc. 8452 1062 1254 TEDATA 15557 1046 1099 LDCOM NETWORKS Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:503 2:712 4:14 6:3 8:387 12:1962 13:1 14:595 15:11 16:3 17:7 20:8 23:134 24:1736 27:1195 31:944 32:65 33:2 34:2 36:9 37:198 38:781 40:116 41:3117 42:112 43:1 44:3 46:1324 47:3 49:319 50:509 52:13 54:2 55:7 56:3 57:38 58:965 59:494 60:344 61:1189 62:966 63:2010 64:4122 65:2285 66:4460 67:2020 68:1167 69:3163 70:909 71:406 72:1791 74:2648 75:470 76:320 77:970 78:958 79:509 80:1224 81:878 82:629 83:528 84:585 85:1155 86:728 87:912 88:334 89:1564 90:282 91:4501 92:510 93:1351 94:1386 95:1118 96:421 97:311 98:831 99:38 100:4 101:154 103:830 106:66 107:161 108:176 109:1542 110:708 111:853 112:435 113:528 114:601 115:779 116:870 117:710 118:906 119:1258 120:364 121:690 122:1617 123:1078 124:1329 125:1316 128:536 129:190 130:217 131:590 132:162 133:21 134:234 135:62 136:214 137:183 138:268 139:145 140:468 141:261 142:394 143:420 144:515 145:69 146:486 147:240 148:734 149:300 150:163 151:198 152:448 153:171 154:7 155:395 156:212 157:370 158:163 159:517 160:319 161:245 162:342 163:181 164:523 165:393 166:559 167:459 168:737 169:148 170:838 171:118 172:4 173:1721 174:598 175:422 176:507 177:507 178:1282 180:1184 181:68 182:736 183:281 184:432 185:1 186:2039 187:856 188:1084 189:1186 190:5463 192:5970 193:5539 194:4344 195:3394 196:1288 197:167 198:3622 199:4415 200:5710 201:1737 202:8401 203:8633 204:4362 205:2441 206:2741 207:2795 208:4067 209:3551 210:2752 211:1476 212:2015 213:1843 214:837 215:101 216:5030 217:1501 218:547 219:337 220:1224 221:562 222:324 223:312 End of report