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 <pfs@cisco.com>. Routing Table Report 04:00 +10GMT Sat 12 Mar, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 350049 Prefixes after maximum aggregation: 157788 Deaggregation factor: 2.22 Unique aggregates announced to Internet: 172931 Total ASes present in the Internet Routing Table: 36036 Prefixes per ASN: 9.71 Origin-only ASes present in the Internet Routing Table: 31061 Origin ASes announcing only one prefix: 14941 Transit ASes present in the Internet Routing Table: 4975 Transit-only ASes present in the Internet Routing Table: 124 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: 392 Unregistered ASNs in the Routing Table: 178 Number of 32-bit ASNs allocated by the RIRs: 1191 Prefixes from 32-bit ASNs in the Routing Table: 2 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 252 Number of addresses announced to Internet: 2467281824 Equivalent to 147 /8s, 15 /16s and 187 /24s Percentage of available address space announced: 66.6 Percentage of allocated address space announced: 66.6 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 89.1 Total number of prefixes smaller than registry allocations: 145075 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 87220 Total APNIC prefixes after maximum aggregation: 29669 APNIC Deaggregation factor: 2.94 Prefixes being announced from the APNIC address blocks: 84042 Unique aggregates announced from the APNIC address blocks: 36224 APNIC Region origin ASes present in the Internet Routing Table: 4339 APNIC Prefixes per ASN: 19.37 APNIC Region origin ASes announcing only one prefix: 1194 APNIC Region transit ASes present in the Internet Routing Table: 690 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 18 Number of APNIC addresses announced to Internet: 595474464 Equivalent to 35 /8s, 126 /16s and 56 /24s Percentage of available APNIC address space announced: 75.5 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, 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: 140487 Total ARIN prefixes after maximum aggregation: 71719 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 110994 Unique aggregates announced from the ARIN address blocks: 44983 ARIN Region origin ASes present in the Internet Routing Table: 14247 ARIN Prefixes per ASN: 7.79 ARIN Region origin ASes announcing only one prefix: 5417 ARIN Region transit ASes present in the Internet Routing Table: 1472 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 23 Number of ARIN addresses announced to Internet: 796431232 Equivalent to 47 /8s, 120 /16s and 147 /24s Percentage of available ARIN address space announced: 63.3 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, 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: 82683 Total RIPE prefixes after maximum aggregation: 47102 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 76020 Unique aggregates announced from the RIPE address blocks: 49879 RIPE Region origin ASes present in the Internet Routing Table: 15397 RIPE Prefixes per ASN: 4.94 RIPE Region origin ASes announcing only one prefix: 7770 RIPE Region transit ASes present in the Internet Routing Table: 2401 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 480842752 Equivalent to 28 /8s, 169 /16s and 20 /24s Percentage of available RIPE address space announced: 77.5 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: 31952 Total LACNIC prefixes after maximum aggregation: 7382 LACNIC Deaggregation factor: 4.33 Prefixes being announced from the LACNIC address blocks: 30818 Unique aggregates announced from the LACNIC address blocks: 16131 LACNIC Region origin ASes present in the Internet Routing Table: 1438 LACNIC Prefixes per ASN: 21.43 LACNIC Region origin ASes announcing only one prefix: 431 LACNIC Region transit ASes present in the Internet Routing Table: 264 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 81386624 Equivalent to 4 /8s, 217 /16s and 220 /24s Percentage of available LACNIC address space announced: 53.9 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: 7497 Total AfriNIC prefixes after maximum aggregation: 1812 AfriNIC Deaggregation factor: 4.14 Prefixes being announced from the AfriNIC address blocks: 5880 Unique aggregates announced from the AfriNIC address blocks: 1850 AfriNIC Region origin ASes present in the Internet Routing Table: 434 AfriNIC Prefixes per ASN: 13.55 AfriNIC Region origin ASes announcing only one prefix: 129 AfriNIC Region transit ASes present in the Internet Routing Table: 94 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC addresses announced to Internet: 22031360 Equivalent to 1 /8s, 80 /16s and 44 /24s Percentage of available AfriNIC address space announced: 32.8 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 2421 9508 892 Korea Telecom (KIX) 7545 1594 301 84 TPG Internet Pty Ltd 4755 1473 653 157 TATA Communications formerly 17974 1413 468 29 PT TELEKOMUNIKASI INDONESIA 24560 1120 324 186 Bharti Airtel Ltd., Telemedia 9583 1048 77 488 Sify Limited 4808 1046 2142 294 CNCGROUP IP network: China169 9829 1005 868 53 BSNL National Internet Backbo 17488 944 162 100 Hathway IP Over Cable Interne 18101 938 117 144 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 3681 3839 259 bellsouth.net, inc. 4323 2584 1109 403 Time Warner Telecom 19262 1829 4953 282 Verizon Global Networks 1785 1792 681 131 PaeTec Communications, Inc. 6478 1538 298 75 AT&T Worldnet Services 20115 1526 1534 650 Charter Communications 18566 1524 326 180 Covad Communications 7018 1365 6706 887 AT&T WorldNet Services 11492 1311 236 66 Cable One 2386 1294 537 934 AT&T Data Communications Serv 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 515 1780 318 UPC Distribution Services 9198 470 267 15 Kazakhtelecom Data Network Ad 3292 450 1996 389 TDC Tele Danmark 34984 449 95 200 BILISIM TELEKOM 8866 443 133 23 Bulgarian Telecommunication C 20940 411 98 314 Akamai Technologies European 3320 407 7604 353 Deutsche Telekom AG 8551 403 353 46 Bezeq International 12479 401 577 6 Uni2 Autonomous System 8402 397 320 11 Corbina telecom 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 1384 258 163 TVCABLE BOGOTA 8151 1243 2700 368 UniNet S.A. de C.V. 28573 1234 963 83 NET Servicos de Comunicao S.A 6503 1181 354 72 AVANTEL, S.A. 7303 919 464 148 Telecom Argentina Stet-France 14420 644 56 93 CORPORACION NACIONAL DE TELEC 22047 541 310 15 VTR PUNTO NET S.A. 3816 514 225 97 Empresa Nacional de Telecomun 11172 488 83 82 Servicios Alestra S.A de C.V 7738 479 922 30 Telecomunicacoes da Bahia 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 791 445 11 TEDATA 24863 762 147 36 LINKdotNET AS number 15475 419 90 8 Nile Online 36992 300 271 14 Etisalat MISR 3741 266 987 228 The Internet Solution 33776 230 13 5 Starcomms Nigeria Limited 24835 228 78 10 RAYA Telecom - Egypt 6713 204 199 11 Itissalat Al-MAGHRIB 29571 192 17 11 Ci Telecom Autonomous system 16637 141 422 85 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 3681 3839 259 bellsouth.net, inc. 4323 2584 1109 403 Time Warner Telecom 4766 2421 9508 892 Korea Telecom (KIX) 19262 1829 4953 282 Verizon Global Networks 1785 1792 681 131 PaeTec Communications, Inc. 7545 1594 301 84 TPG Internet Pty Ltd 6478 1538 298 75 AT&T Worldnet Services 20115 1526 1534 650 Charter Communications 18566 1524 326 180 Covad Communications 4755 1473 653 157 TATA Communications formerly 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 2584 2181 Time Warner Telecom 1785 1792 1661 PaeTec Communications, Inc. 19262 1829 1547 Verizon Global Networks 4766 2421 1529 Korea Telecom (KIX) 7545 1594 1510 TPG Internet Pty Ltd 6478 1538 1463 AT&T Worldnet Services 17974 1413 1384 PT TELEKOMUNIKASI INDONESIA 18566 1524 1344 Covad Communications 4755 1473 1316 TATA Communications formerly 11492 1311 1245 Cable One 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 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic 13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 1.5.0.0/16 38639 NTT Communications Corporatio 1.6.0.0/15 38639 NTT Communications Corporatio 1.8.0.0/16 38639 NTT Communications Corporatio 1.20.0.0/16 38639 NTT Communications Corporatio 1.32.0.0/16 38639 NTT Communications Corporatio 1.37.0.0/16 38639 NTT Communications Corporatio 1.187.0.0/16 38639 NTT Communications Corporatio 14.0.0.0/24 38639 NTT Communications Corporatio 14.0.1.0/24 38639 NTT Communications Corporatio 14.0.2.0/23 38639 NTT Communications Corporatio 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 /8:24 /9:11 /10:26 /11:73 /12:216 /13:447 /14:768 /15:1370 /16:11556 /17:5669 /18:9352 /19:19025 /20:24651 /21:25208 /22:33478 /23:32020 /24:182909 /25:1136 /26:1330 /27:720 /28:42 /29:9 /30:3 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2271 3681 bellsouth.net, inc. 18566 1502 1524 Covad Communications 6478 1492 1538 AT&T Worldnet Services 4323 1391 2584 Time Warner Telecom 10620 1275 1384 TVCABLE BOGOTA 11492 1268 1311 Cable One 7011 1058 1158 Citizens Utilities 1785 1055 1792 PaeTec Communications, Inc. 6503 959 1181 AVANTEL, S.A. 19262 941 1829 Verizon Global Networks Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:271 2:57 4:14 5:1 8:340 12:2027 13:1 14:429 15:15 16:3 17:8 20:9 23:3 24:1515 27:608 31:2 32:60 33:4 34:2 36:2 37:1 38:714 39:1 40:101 41:2306 42:13 44:3 46:703 47:4 49:164 50:197 52:13 55:2 56:2 57:32 58:860 59:495 60:386 61:1133 62:1013 63:1922 64:3867 65:2351 66:4339 67:1775 68:1063 69:2886 70:701 71:399 72:2007 73:1 74:2351 75:283 76:341 77:837 78:699 79:445 80:1093 81:801 82:514 83:462 84:644 85:1044 86:571 87:753 88:350 89:1568 90:174 91:3593 92:486 93:1045 94:1216 95:778 96:471 97:251 98:805 99:34 101:58 106:1 107:4 108:129 109:905 110:477 111:720 112:320 113:379 114:496 115:711 116:958 117:678 118:719 119:1036 120:256 121:753 122:1615 123:1042 124:1298 125:1262 128:266 129:168 130:171 131:560 132:110 133:20 134:220 135:49 136:212 137:146 138:298 139:110 140:487 141:203 142:377 143:379 144:493 145:52 146:424 147:194 148:640 149:276 150:161 151:229 152:298 153:180 154:3 155:377 156:179 157:345 158:131 159:371 160:312 161:211 162:277 163:160 164:487 165:352 166:496 167:410 168:728 169:156 170:760 171:69 172:2 173:1259 174:516 175:328 177:35 178:804 180:813 181:4 182:384 183:243 184:233 186:1044 187:837 188:919 189:1032 190:4561 192:5756 193:4780 194:3483 195:2948 196:1171 197:4 198:3581 199:3867 200:5585 201:1585 202:8302 203:8484 204:4106 205:2305 206:2653 207:3071 208:3909 209:3484 210:2686 211:1348 212:1932 213:1716 214:751 215:63 216:4844 217:1653 218:554 219:382 220:1199 221:476 222:318 223:101 End of report