Routing Table Report 00:00 GMT Mon 19 Jun, 2006 Analysis Summary ---------------- BGP routing table entries examined: 204200 Prefixes after maximum aggregation: 106822 Unique aggregates announced to Internet: 93343 Total ASes present in the Internet Routing Table: 22530 Origin-only ASes present in the Internet Routing Table: 19569 Origin ASes announcing only one prefix: 9345 Transit ASes present in the Internet Routing Table: 2961 Transit-only ASes present in the Internet Routing Table: 71 Average AS path length visible in the Internet Routing Table: 3.8 Max AS path length visible: 20 Max AS path prepend of ASN (34527) 16 Prefixes from unregistered ASNs in the Routing Table: 20 Unregistered ASNs in the Routing Table: 15 Special use prefixes present in the Routing Table: 5 Prefixes being announced from unallocated address space: 60 Number of addresses announced to Internet: 2016048054 Equivalent to 120 /8s, 42 /16s and 115 /24s Percentage of available address space announced: 54.4 Percentage of allocated address space announced: 78.7 Percentage of available address space allocated: 69.1 Total number of prefixes smaller than registry allocations: 104799 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42131 Total APNIC prefixes after maximum aggregation: 17021 Prefixes being announced from the APNIC address blocks: 39755 Unique aggregates announced from the APNIC address blocks: 18334 APNIC Region origin ASes present in the Internet Routing Table: 2620 APNIC Region origin ASes announcing only one prefix: 747 APNIC Region transit ASes present in the Internet Routing Table: 400 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 19 Number of APNIC addresses announced to Internet: 294944676 Equivalent to 17 /8s, 148 /16s and 127 /24s Percentage of available APNIC address space announced: 92.2 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911 APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 108664 Total ARIN prefixes after maximum aggregation: 59375 Prefixes being announced from the ARIN address blocks: 80974 Unique aggregates announced from the ARIN address blocks: 26884 ARIN Region origin ASes present in the Internet Routing Table: 10782 ARIN Region origin ASes announcing only one prefix: 4047 ARIN Region transit ASes present in the Internet Routing Table: 1015 Average ARIN Region AS path length visible: 3.6 Max ARIN Region AS path length visible: 20 Number of ARIN addresses announced to Internet: 294190881 Equivalent to 17 /8s, 136 /16s and 255 /24s Percentage of available ARIN address space announced: 76.2 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 ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 39570 Total RIPE prefixes after maximum aggregation: 25786 Prefixes being announced from the RIPE address blocks: 36954 Unique aggregates announced from the RIPE address blocks: 23779 RIPE Region origin ASes present in the Internet Routing Table: 8201 RIPE Region origin ASes announcing only one prefix: 4276 RIPE Region transit ASes present in the Internet Routing Table: 1355 Average RIPE Region AS path length visible: 3.7 Max RIPE Region AS path length visible: 20 Number of RIPE addresses announced to Internet: 254203264 Equivalent to 15 /8s, 38 /16s and 213 /24s Percentage of available RIPE address space announced: 79.7 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 40960-41983 RIPE Address Blocks 62/8, 80/5, 88/6, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 11537 Total LACNIC prefixes after maximum aggregation: 3716 Prefixes being announced from the LACNIC address blocks: 9697 Unique aggregates announced from the LACNIC address blocks: 5517 LACNIC Region origin ASes present in the Internet Routing Table: 697 LACNIC Region origin ASes announcing only one prefix: 231 LACNIC Region transit ASes present in the Internet Routing Table: 135 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 27427328 Equivalent to 1 /8s, 162 /16s and 130 /24s Percentage of available LACNIC address space announced: 40.9 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 189/8, 190/8, 200/7 AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 2279 Total AfriNIC prefixes after maximum aggregation: 924 Prefixes being announced from the AfriNIC address blocks: 1555 Unique aggregates announced from the AfriNIC address blocks: 964 AfriNIC Region origin ASes present in the Internet Routing Table: 159 AfriNIC Region origin ASes announcing only one prefix: 44 AfriNIC Region transit ASes present in the Internet Routing Table: 26 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 4135936 Equivalent to 0 /8s, 63 /16s and 28 /24s Percentage of available AfriNIC address space announced: 12.3 AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4134 1240 7244 229 CHINANET-BACKBONE 4755 922 256 73 Videsh Sanchar Nigam Ltd. Aut 9583 903 109 16 Sify Limited 4766 715 4436 310 Korea Telecom (KIX) 9498 659 211 68 BHARTI BT INTERNET LTD. 1221 650 1668 482 Telstra Pty Ltd 7545 547 124 71 TPG Internet Pty Ltd 17488 519 32 10 Hathway IP Over Cable Interne 17676 488 7061 109 Softbank BB Corp. 9443 450 110 81 Primus Telecommunications 4538 437 2717 31 China Education and Research 18101 413 85 24 Reliance Infocom Ltd Internet 17557 398 31 178 Pakistan Telecom 9929 385 253 63 China Netcom Corp. 4802 383 80 170 Wantree Development 17974 382 129 14 PT TELEKOMUNIKASI INDONESIA 4780 365 225 27 Digital United Inc. 7474 364 211 229 SingTel Optus Pty Ltd 2907 339 1733 313 SINET Japan 4804 305 295 58 Microplex PTY LTD RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 688 1951 451 UUNET - Commercial IP service 3215 403 1680 93 France Telecom Transpac 3301 314 1343 299 TeliaNet Sweden 3352 306 1643 30 Ibernet, Internet Access Netw 3320 287 3988 241 Deutsche Telekom AG 8220 281 471 265 COLT Telecommunications 680 245 2025 242 DFN-IP service G-WiN 5089 237 1691 46 NTL Group Limited 6746 236 89 211 Dynamic Network Technologies, 3246 235 499 225 Song Networks 1257 219 741 164 SWIPnet Swedish IP Network 8708 216 275 202 Romania Data Systems S.A. 24863 215 42 10 LINKdotNET AS number 3269 201 2182 72 TELECOM ITALIA 8551 201 198 24 Bezeq International 30890 194 17 72 SC Kappa Invexim SRL 8866 183 37 15 Bulgarian Telecommunication C 5400 175 348 141 BT Ignite European Backbone 6830 173 781 36 UPC Distribution Services 786 172 1778 172 The JANET IP Service ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 5036 6752 773 UUNET Technologies, Inc. 4323 3142 743 263 Time Warner Telecom 705 1581 579 704 UUNET Technologies, Inc. 7018 1468 6267 950 AT&T WorldNet Services 721 1013 21982 313 DLA Systems Automation Center 6197 1012 629 473 BellSouth Network Solutions, 174 968 5771 902 Cogent Communications 19029 948 151 109 New Edge Networks 18566 943 272 8 Covad Communications 2386 910 560 703 AT&T Data Communications Serv 1239 852 2797 604 Sprint 7046 845 253 701 UUNET Technologies, Inc. 20115 713 617 387 Charter Communications 19262 710 2105 183 Verizon Global Networks 209 708 3687 550 Qwest 22773 666 1741 40 Cox Communications, Inc. 7011 638 218 414 Citizens Utilities 11492 632 87 23 Cable One 6461 606 227 84 AboveNet Communications, Inc. 852 597 1084 382 Telus Advanced Communications Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 3142 2879 Time Warner Telecom 4134 1240 1011 CHINANET-BACKBONE 18566 943 935 Covad Communications 9583 903 887 Sify Limited 705 1581 877 UUNET Technologies, Inc. 4755 922 849 Videsh Sanchar Nigam Ltd. Aut 19029 948 839 New Edge Networks 721 1013 700 DLA Systems Automation Center 22773 666 626 Cox Communications, Inc. 11492 632 609 Cable One 9498 659 591 BHARTI BT INTERNET LTD. 6197 1012 539 BellSouth Network Solutions, 19262 710 527 Verizon Global Networks 6461 606 522 AboveNet Communications, Inc. 7018 1468 518 AT&T WorldNet Services 19916 563 509 OLM LLC 17488 519 509 Hathway IP Over Cable Interne 5668 529 506 CenturyTel Internet Holdings, 855 550 486 Canadian Research Network 8151 709 484 UniNet S.A. de C.V. List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 64666 PRIVATE 2.2.2.0/24 8001 Net Access Corporati 65000 PRIVATE 64.25.139.64/29 21947 Cutthroat Communicat 65473 PRIVATE 66.246.179.0/24 8001 Net Access Corporati 64500 RESERVED 81.17.39.128/27 24587 AS for Internet Onli 65516 PRIVATE 84.222.96.0/22 3257 Tiscali Intl Network 64704 PRIVATE 86.70.139.0/24 34383 TELOISE 65515 PRIVATE 87.251.34.0/24 12859 Business Internet Tr 65515 PRIVATE 87.251.36.0/24 12859 Business Internet Tr 65517 PRIVATE 198.32.176.0/24 293 Energy Sciences Netw 24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com 65010 PRIVATE 212.2.12.160/28 8190 VIATEL 64565 PRIVATE 212.111.35.128/27 4513 PFM Communications, 65515 PRIVATE 213.154.234.0/27 12859 Business Internet Tr 65517 PRIVATE 213.154.248.0/28 12859 Business Internet Tr 64560 PRIVATE 213.219.53.192/26 4513 PFM Communications, 65000 PRIVATE 216.136.11.0/24 27182 Peregrine Capital Ma 64512 PRIVATE 217.134.164.0/22 5428 Energis Communicatio 64512 PRIVATE 217.134.168.0/21 5428 Energis Communicatio 64512 PRIVATE 217.134.176.0/21 5428 Energis Communicatio 64512 PRIVATE 217.134.184.0/22 5428 Energis Communicatio Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 0.0.0.0/8 3303 Swisscom Ltd 172.16.2.32/27 6325 Illinois Century Network 172.16.2.80/28 6325 Illinois Century Network 172.31.31.0/30 6325 Illinois Century Network 192.168.83.0/24 292 Energy Sciences Network Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 2.2.2.0/24 64666 PRIVATE ASN 96.0.0.0/9 1660 ANS Communications 96.128.0.0/9 1660 ANS Communications 97.0.0.0/9 1660 ANS Communications 97.128.0.0/9 1660 ANS Communications 98.0.0.0/9 1660 ANS Communications 98.128.0.0/9 1660 ANS Communications 99.0.0.0/9 1660 ANS Communications 99.128.0.0/9 1660 ANS Communications 100.0.0.0/9 1660 ANS Communications 100.128.0.0/9 1660 ANS Communications 101.0.0.0/9 1660 ANS Communications 101.128.0.0/9 1660 ANS Communications 102.0.0.0/9 1660 ANS Communications 102.128.0.0/9 1660 ANS Communications 103.0.0.0/9 1660 ANS Communications 103.128.0.0/9 1660 ANS Communications 104.0.0.0/9 1660 ANS Communications 104.128.0.0/9 1660 ANS Communications 105.0.0.0/9 1660 ANS Communications 105.128.0.0/9 1660 ANS Communications 106.0.0.0/9 1660 ANS Communications 106.128.0.0/9 1660 ANS Communications 107.0.0.0/9 1660 ANS Communications 107.128.0.0/9 1660 ANS Communications 108.0.0.0/9 1660 ANS Communications 108.128.0.0/9 1660 ANS Communications 109.0.0.0/9 1660 ANS Communications 109.128.0.0/9 1660 ANS Communications 110.0.0.0/9 1660 ANS Communications 110.128.0.0/9 1660 ANS Communications 111.0.0.0/9 1660 ANS Communications 111.128.0.0/9 1660 ANS Communications 112.0.0.0/9 1660 ANS Communications 112.128.0.0/9 1660 ANS Communications 113.0.0.0/9 1660 ANS Communications 113.128.0.0/9 1660 ANS Communications 114.0.0.0/9 1660 ANS Communications 114.128.0.0/9 1660 ANS Communications 115.0.0.0/9 1660 ANS Communications 115.128.0.0/9 1660 ANS Communications 116.0.0.0/9 1660 ANS Communications 116.128.0.0/9 1660 ANS Communications 117.0.0.0/9 1660 ANS Communications 117.128.0.0/9 1660 ANS Communications 118.0.0.0/9 1660 ANS Communications 118.128.0.0/9 1660 ANS Communications 119.0.0.0/9 1660 ANS Communications 119.128.0.0/9 1660 ANS Communications 120.0.0.0/9 1660 ANS Communications 120.128.0.0/9 1660 ANS Communications 132.0.0.0/10 721 DLA Systems Automation Center 137.0.0.0/13 721 DLA Systems Automation Center 158.0.0.0/13 721 DLA Systems Automation Center 183.206.196.0/24 2188 FR-RENATER-ASTER 192.44.0.0/24 5501 Fraunhofer Gesellschaft 192.44.0.0/19 702 UUNET - Commercial IP service 192.70.164.0/24 25689 National Research Council of 192.84.205.0/24 719 LANLINK autonomous system 192.172.0.0/19 721 DLA Systems Automation Center Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:18 /9:67 /10:10 /11:28 /12:93 /13:207 /14:362 /15:713 /16:8881 /17:3324 /18:5505 /19:12027 /20:13603 /21:12135 /22:15563 /23:16754 /24:112759 /25:469 /26:400 /27:285 /28:211 /29:221 /30:463 /31:0 /32:102 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 3781 5036 UUNET Technologies, Inc. 4323 1866 3142 Time Warner Telecom 705 1016 1581 UUNET Technologies, Inc. 18566 926 943 Covad Communications 19029 879 948 New Edge Networks 6197 795 1012 BellSouth Network Solutions, 7018 779 1468 AT&T WorldNet Services 9583 734 903 Sify Limited 2386 631 910 AT&T Data Communications Serv 11492 623 632 Cable One 7046 599 845 UUNET Technologies, Inc. 19916 557 563 OLM LLC 7011 547 638 Citizens Utilities 6461 533 606 AboveNet Communications, Inc. 2686 531 576 IBM 4766 525 715 Korea Telecom (KIX) 702 471 688 UUNET - Commercial IP service 855 424 550 Canadian Research Network 5668 412 529 CenturyTel Internet Holdings, 15270 404 435 PaeTec.net -a division of Pae Number of /24s announced per /8 block (Global) ---------------------------------------------- 2:1 4:9 8:42 12:1635 13:1 15:16 16:3 17:3 18:4 20:41 24:753 25:1 30:2 32:277 38:231 40:54 41:3 44:3 47:6 52:4 55:1 56:3 57:46 58:190 59:247 60:189 61:876 62:917 63:3426 64:3544 65:3604 66:3734 67:652 68:671 69:1553 70:391 71:81 72:763 74:43 80:798 81:663 82:656 83:407 84:395 85:560 86:389 87:369 88:110 89:264 121:1 122:2 123:1 124:279 125:515 128:168 129:188 130:119 131:317 132:34 133:9 134:159 135:43 136:177 137:82 138:206 139:160 140:468 141:134 142:405 143:166 144:221 145:40 146:319 147:141 148:318 149:190 150:113 151:93 152:72 153:106 154:6 155:204 156:98 157:148 158:169 159:173 160:91 161:79 162:244 163:154 164:224 165:217 166:171 167:246 168:605 169:127 170:336 171:14 183:1 190:75 192:5853 193:3385 194:2767 195:2078 196:884 198:4032 199:3294 200:4487 201:986 202:6849 203:7119 204:4086 205:2173 206:2794 207:3552 208:2942 209:4186 210:2086 211:736 212:1412 213:1574 214:362 215:40 216:4598 217:1374 218:310 219:265 220:721 221:359 222:196 End of report