Routing Table Report 08:04 +10GMT Fri 14 Jan, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/london/ Analysis Summary ---------------- BGP routing table entries examined: 336699 Prefixes after maximum aggregation: 153490 Deaggregation factor: 2.19 Unique aggregates announced to Internet: 168470 Total ASes present in the Internet Routing Table: 35474 Prefixes per ASN: 9.49 Origin-only ASes present in the Internet Routing Table: 30707 Origin ASes announcing only one prefix: 14948 Transit ASes present in the Internet Routing Table: 4767 Transit-only ASes present in the Internet Routing Table: 102 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 31 Max AS path prepend of ASN (36992) 29 Prefixes from unregistered ASNs in the Routing Table: 321 Unregistered ASNs in the Routing Table: 123 Number of 32-bit ASNs allocated by the RIRs: 1005 Prefixes from 32-bit ASNs in the Routing Table: 1531 Special use prefixes present in the Routing Table: 6 Prefixes being announced from unallocated address space: 232 Number of addresses announced to Internet: 2568915200 Equivalent to 153 /8s, 30 /16s and 137 /24s Percentage of available address space announced: 69.3 Percentage of allocated address space announced: 71.6 Percentage of available address space allocated: 96.8 Percentage of address space in use by end-sites: 87.4 Total number of prefixes smaller than registry allocations: 137082 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 81005 Total APNIC prefixes after maximum aggregation: 27707 APNIC Deaggregation factor: 2.92 Prefixes being announced from the APNIC address blocks: 78669 Unique aggregates announced from the APNIC address blocks: 35316 APNIC Region origin ASes present in the Internet Routing Table: 4238 APNIC Prefixes per ASN: 18.56 APNIC Region origin ASes announcing only one prefix: 1219 APNIC Region transit ASes present in the Internet Routing Table: 648 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 25 Number of APNIC addresses announced to Internet: 579197440 Equivalent to 34 /8s, 133 /16s and 218 /24s Percentage of available APNIC address space announced: 78.5 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, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 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: 134850 Total ARIN prefixes after maximum aggregation: 69039 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 107890 Unique aggregates announced from the ARIN address blocks: 44276 ARIN Region origin ASes present in the Internet Routing Table: 14038 ARIN Prefixes per ASN: 7.69 ARIN Region origin ASes announcing only one prefix: 5389 ARIN Region transit ASes present in the Internet Routing Table: 1393 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 22 Number of ARIN addresses announced to Internet: 778355968 Equivalent to 46 /8s, 100 /16s and 197 /24s Percentage of available ARIN address space announced: 65.3 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, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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, 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: 80468 Total RIPE prefixes after maximum aggregation: 45841 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 73902 Unique aggregates announced from the RIPE address blocks: 47942 RIPE Region origin ASes present in the Internet Routing Table: 15195 RIPE Prefixes per ASN: 4.86 RIPE Region origin ASes announcing only one prefix: 7761 RIPE Region transit ASes present in the Internet Routing Table: 2334 Average RIPE Region AS path length visible: 3.4 Max RIPE Region AS path length visible: 25 Number of RIPE addresses announced to Internet: 454857216 Equivalent to 27 /8s, 28 /16s and 146 /24s Percentage of available RIPE address space announced: 75.3 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, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 30671 Total LACNIC prefixes after maximum aggregation: 7128 LACNIC Deaggregation factor: 4.30 Prefixes being announced from the LACNIC address blocks: 29583 Unique aggregates announced from the LACNIC address blocks: 15620 LACNIC Region origin ASes present in the Internet Routing Table: 1407 LACNIC Prefixes per ASN: 21.03 LACNIC Region origin ASes announcing only one prefix: 439 LACNIC Region transit ASes present in the Internet Routing Table: 241 Average LACNIC Region AS path length visible: 3.9 Max LACNIC Region AS path length visible: 18 Number of LACNIC addresses announced to Internet: 79051776 Equivalent to 4 /8s, 182 /16s and 60 /24s Percentage of available LACNIC address space announced: 58.9 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 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: 7483 Total AfriNIC prefixes after maximum aggregation: 1961 AfriNIC Deaggregation factor: 3.82 Prefixes being announced from the AfriNIC address blocks: 5756 Unique aggregates announced from the AfriNIC address blocks: 1846 AfriNIC Region origin ASes present in the Internet Routing Table: 433 AfriNIC Prefixes per ASN: 13.29 AfriNIC Region origin ASes announcing only one prefix: 140 AfriNIC Region transit ASes present in the Internet Routing Table: 93 Average AfriNIC Region AS path length visible: 3.4 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC addresses announced to Internet: 21696768 Equivalent to 1 /8s, 75 /16s and 17 /24s Percentage of available AfriNIC address space announced: 43.1 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 105/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 1755 9484 511 Korea Telecom (KIX) 7545 1547 298 75 TPG Internet Pty Ltd 17974 1412 459 28 PT TELEKOMUNIKASI INDONESIA 4755 1393 636 158 TATA Communications formerly 24560 1085 317 181 Bharti Airtel Ltd., Telemedia 9583 1042 76 489 Sify Limited 17488 943 159 109 Hathway IP Over Cable Interne 4808 921 2012 264 CNCGROUP IP network: China169 18101 913 116 138 Reliance Infocom Ltd Internet 9829 861 728 47 BSNL National Internet Backbo Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3716 3855 267 bellsouth.net, inc. 4323 2645 1093 402 Time Warner Telecom 19262 1916 4941 286 Verizon Global Networks 1785 1788 697 132 PaeTec Communications, Inc. 20115 1509 1530 642 Charter Communications 6478 1445 287 76 AT&T Worldnet Services 7018 1386 5685 898 AT&T WorldNet Services 2386 1297 554 933 AT&T Data Communications Serv 11492 1277 234 71 Cable One 22773 1265 2864 74 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6830 498 1763 306 UPC Distribution Services 9116 487 328 31 Goldenlines main autonomous s 34984 457 97 137 BILISIM TELEKOM 3292 441 2010 385 TDC Tele Danmark 8866 439 133 23 Bulgarian Telecommunication C 9198 423 266 14 Kazakhtelecom Data Network Ad 8551 404 355 38 Bezeq International 702 403 1851 316 UUNET - Commercial IP service 12479 403 577 6 Uni2 Autonomous System 3320 397 7618 347 Deutsche Telekom AG Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 10620 1350 251 166 TVCABLE BOGOTA 28573 1210 951 79 NET Servicos de Comunicao S.A 8151 1202 2591 356 UniNet S.A. de C.V. 6503 1130 355 80 AVANTEL, S.A. 7303 843 458 101 Telecom Argentina Stet-France 14420 601 50 87 ANDINATEL S.A. 22047 566 310 15 VTR PUNTO NET S.A. 3816 497 217 100 Empresa Nacional de Telecomun 7738 478 922 30 Telecomunicacoes da Bahia S.A 14117 455 33 33 Telefonica del Sur S.A. Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 8452 791 445 11 TEDATA 24863 746 147 36 LINKdotNET AS number 36992 653 283 155 Etisalat MISR 3741 264 987 226 The Internet Solution 24835 217 78 10 RAYA Telecom - Egypt 6713 203 199 12 Itissalat Al-MAGHRIB 29571 202 19 13 Ci Telecom Autonomous system 2018 198 277 64 Tertiary Education Network 33776 184 12 14 Starcomms Nigeria Limited 16637 162 440 89 MTN Network Solutions Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3716 3855 267 bellsouth.net, inc. 4323 2645 1093 402 Time Warner Telecom 19262 1916 4941 286 Verizon Global Networks 1785 1788 697 132 PaeTec Communications, Inc. 4766 1755 9484 511 Korea Telecom (KIX) 7545 1547 298 75 TPG Internet Pty Ltd 23456 1531 388 852 32-bit ASN transition 20115 1509 1530 642 Charter Communications 6478 1445 287 76 AT&T Worldnet Services 17974 1412 459 28 PT TELEKOMUNIKASI INDONESIA Complete listing at http://thyme.rand.apnic.net/london/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 2645 2243 Time Warner Telecom 1785 1788 1656 PaeTec Communications, Inc. 19262 1916 1630 Verizon Global Networks 7545 1547 1472 TPG Internet Pty Ltd 17974 1412 1384 PT TELEKOMUNIKASI INDONESIA 6478 1445 1369 AT&T Worldnet Services 4766 1755 1244 Korea Telecom (KIX) 4755 1393 1235 TATA Communications formerly 11492 1277 1206 Cable One 22773 1265 1191 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 65333 PRIVATE 10.0.0.0/8 0 * 16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic 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 Complete listing at http://thyme.rand.apnic.net/london/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 10.0.0.0/8 65333 Internet Assigned Numbers Aut 169.254.0.0/16 65333 Internet Assigned Numbers Aut 172.16.0.0/12 65333 Internet Assigned Numbers Aut 192.0.2.0/24 65333 Internet Assigned Numbers Aut 192.168.0.0/16 0 * 198.18.0.0/15 65333 Internet Assigned Numbers Aut Complete listing at http://thyme.rand.apnic.net/london/data-dsua Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 5.0.0.0/16 12654 RIPE NCC RIS Project 5.0.0.0/8 237 Merit Network 5.1.0.0/21 12654 RIPE NCC RIS Project 5.1.24.0/24 12654 RIPE NCC RIS Project 24.129.192.0/19 7922 Continental Cablevision 37.0.0.0/16 12654 RIPE NCC RIS Project 37.0.0.0/8 237 Merit Network 37.1.0.0/21 12654 RIPE NCC RIS Project 37.1.24.0/24 12654 RIPE NCC RIS Project 41.75.112.0/24 37187 Skyband Corporation Ltd Complete listing at http://thyme.rand.apnic.net/london/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 /8:33 /9:10 /10:25 /11:70 /12:214 /13:436 /14:757 /15:1348 /16:11415 /17:5558 /18:9224 /19:18816 /20:24141 /21:24308 /22:32137 /23:30989 /24:176763 /25:11 /26:17 /27:26 /28:153 /29:93 /30:43 /31:0 /32:112 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2294 3716 bellsouth.net, inc. 4323 1428 2645 Time Warner Telecom 6478 1401 1445 AT&T Worldnet Services 10620 1241 1350 TVCABLE BOGOTA 11492 1233 1277 Cable One 7011 1068 1170 Citizens Utilities 18566 1066 1085 Covad Communications 1785 1060 1788 PaeTec Communications, Inc. 19262 1030 1916 Verizon Global Networks 6503 916 1130 AVANTEL, S.A. Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:154 2:22 4:13 5:1 8:325 12:2027 13:6 14:283 15:15 16:3 17:8 20:9 23:1 24:1458 27:532 32:57 33:5 34:2 36:1 37:1 38:683 40:101 41:2320 42:1 44:3 46:500 47:5 49:139 50:48 52:12 55:5 56:2 57:28 58:759 59:500 60:383 61:1009 62:1043 63:1925 64:3719 65:2347 66:4103 67:1777 68:1002 69:2861 70:716 71:396 72:2006 73:1 74:2289 75:288 76:326 77:852 78:702 79:436 80:1037 81:816 82:530 83:451 84:633 85:1044 86:521 87:729 88:339 89:1555 90:152 91:3405 92:485 93:1030 94:1155 95:745 96:439 97:248 98:760 99:33 100:1 101:19 107:3 108:85 109:841 110:468 111:658 112:307 113:359 114:470 115:597 116:871 117:669 118:627 119:1028 120:232 121:680 122:1582 123:1034 124:1238 125:1213 128:195 129:151 130:165 131:562 132:103 133:20 134:206 135:50 136:210 137:142 138:290 139:106 140:461 141:197 142:342 143:368 144:482 145:51 146:417 147:189 148:609 149:302 150:152 151:230 152:297 153:175 154:2 155:372 156:169 157:311 158:126 159:370 160:315 161:183 162:277 163:150 164:459 165:332 166:473 167:419 168:719 169:148 170:735 171:68 172:5 173:1195 174:503 175:306 176:1 177:2 178:717 180:737 182:373 183:253 184:199 186:910 187:772 188:880 189:1005 190:4233 192:5720 193:4775 194:3484 195:2891 196:1250 197:1 198:3474 199:3681 200:5565 201:1563 202:7987 203:8332 204:3983 205:2308 206:2426 207:2892 208:3866 209:3452 210:2573 211:1326 212:1847 213:1723 214:735 215:62 216:4815 217:1625 218:520 219:383 220:1188 221:429 222:315 223:82 End of report