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Routing Table Report 00:00 GMT Tue 18 Jul, 2006
Analysis Summary ----------------
BGP routing table entries examined: 200898 Prefixes after maximum aggregation: 106911 Unique aggregates announced to Internet: 94113 Total ASes present in the Internet Routing Table: 22741 Origin-only ASes present in the Internet Routing Table: 19766 Origin ASes announcing only one prefix: 9445 Transit ASes present in the Internet Routing Table: 2975 Transit-only ASes present in the Internet Routing Table: 74 Average AS path length visible in the Internet Routing Table: 3.3 Max AS path length visible: 27 Max AS path prepend of ASN (34527) 16 Prefixes from unregistered ASNs in the Routing Table: 28 Unregistered ASNs in the Routing Table: 18 Special use prefixes present in the Routing Table: 7 Prefixes being announced from unallocated address space: 10 Number of addresses announced to Internet: 1552779189 Equivalent to 92 /8s, 141 /16s and 135 /24s Percentage of available address space announced: 41.9 Percentage of allocated address space announced: 60.6 Percentage of available address space allocated: 69.1 Total number of prefixes smaller than registry allocations: 101305
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 42849 Total APNIC prefixes after maximum aggregation: 17267 Prefixes being announced from the APNIC address blocks: 40439 Unique aggregates announced from the APNIC address blocks: 18394 APNIC Region origin ASes present in the Internet Routing Table: 2640 APNIC Region origin ASes announcing only one prefix: 744 APNIC Region transit ASes present in the Internet Routing Table: 402 Average APNIC Region AS path length visible: 3.8 Max APNIC Region AS path length visible: 19 Number of APNIC addresses announced to Internet: 239340964 Equivalent to 14 /8s, 68 /16s and 13 /24s Percentage of available APNIC address space announced: 74.8
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: 103518 Total ARIN prefixes after maximum aggregation: 58872 Prefixes being announced from the ARIN address blocks: 75800 Unique aggregates announced from the ARIN address blocks: 27053 ARIN Region origin ASes present in the Internet Routing Table: 10853 ARIN Region origin ASes announcing only one prefix: 4075 ARIN Region transit ASes present in the Internet Routing Table: 1026 Average ARIN Region AS path length visible: 3.0 Max ARIN Region AS path length visible: 20 Number of ARIN addresses announced to Internet: 296357921 Equivalent to 17 /8s, 170 /16s and 16 /24s Percentage of available ARIN address space announced: 76.8
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: 40190 Total RIPE prefixes after maximum aggregation: 26114 Prefixes being announced from the RIPE address blocks: 37423 Unique aggregates announced from the RIPE address blocks: 24077 RIPE Region origin ASes present in the Internet Routing Table: 8308 RIPE Region origin ASes announcing only one prefix: 4343 RIPE Region transit ASes present in the Internet Routing Table: 1359 Average RIPE Region AS path length visible: 3.5 Max RIPE Region AS path length visible: 27 Number of RIPE addresses announced to Internet: 260343168 Equivalent to 15 /8s, 132 /16s and 133 /24s Percentage of available RIPE address space announced: 81.7
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: 11987 Total LACNIC prefixes after maximum aggregation: 3760 Prefixes being announced from the LACNIC address blocks: 10043 Unique aggregates announced from the LACNIC address blocks: 5658 LACNIC Region origin ASes present in the Internet Routing Table: 706 LACNIC Region origin ASes announcing only one prefix: 238 LACNIC Region transit ASes present in the Internet Routing Table: 131 Average LACNIC Region AS path length visible: 4.2 Max LACNIC Region AS path length visible: 25 Number of LACNIC addresses announced to Internet: 31119872 Equivalent to 1 /8s, 218 /16s and 218 /24s Percentage of available LACNIC address space announced: 46.4
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: 2327 Total AfriNIC prefixes after maximum aggregation: 898 Prefixes being announced from the AfriNIC address blocks: 1568 Unique aggregates announced from the AfriNIC address blocks: 961 AfriNIC Region origin ASes present in the Internet Routing Table: 160 AfriNIC Region origin ASes announcing only one prefix: 45 AfriNIC Region transit ASes present in the Internet Routing Table: 24 Average AfriNIC Region AS path length visible: 3.6 Max AfriNIC Region AS path length visible: 11 Number of AfriNIC addresses announced to Internet: 4195840 Equivalent to 0 /8s, 64 /16s and 6 /24s Percentage of available AfriNIC address space announced: 12.5
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 1246 7503 236 CHINANET-BACKBONE 4755 947 256 70 Videsh Sanchar Nigam Ltd. Aut 9583 913 109 15 Sify Limited 9498 768 211 71 BHARTI BT INTERNET LTD. 4766 711 4435 305 Korea Telecom (KIX) 1221 646 1779 478 Telstra Pty Ltd 7545 552 124 75 TPG Internet Pty Ltd 17488 519 32 17 Hathway IP Over Cable Interne 4538 513 2715 30 China Education and Research 17676 490 7093 110 Softbank BB Corp. 9443 449 111 83 Primus Telecommunications 18101 427 85 23 Reliance Infocom Ltd Internet 17974 405 129 14 PT TELEKOMUNIKASI INDONESIA 9929 398 268 61 China Netcom Corp. 17849 398 28 124 Telecommunications Technology 17557 384 30 173 Pakistan Telecom 4802 379 81 168 Wantree Development 7474 357 211 230 SingTel Optus Pty Ltd 2907 339 1733 312 SINET Japan 4804 309 295 57 Microplex PTY LTD
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 642 1948 444 UUNET - Commercial IP service 3215 404 1760 97 France Telecom Transpac 1103 367 1990 80 SURFnet, The Netherlands 3301 316 1187 301 TeliaNet Sweden 3352 305 1639 33 Ibernet, Internet Access Netw 3320 285 5012 233 Deutsche Telekom AG 8220 283 471 266 COLT Telecommunications 680 246 2041 243 DFN-IP service G-WiN 6746 233 89 210 Dynamic Network Technologies, 3246 232 463 222 Song Networks 5089 229 1657 44 NTL Group Limited 1257 223 741 167 SWIPnet Swedish IP Network 24863 218 42 10 LINKdotNET AS number 8708 216 276 205 Romania Data Systems S.A. 8551 209 198 29 Bezeq International 30890 207 19 80 SC Kappa Invexim SRL 3269 201 2182 72 TELECOM ITALIA 8866 182 37 15 Bulgarian Telecommunication C 6830 176 813 37 UPC Distribution Services 3300 172 171 98 AUCS Communications Services
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 4323 3180 746 274 Time Warner Telecom 7018 1470 6238 944 AT&T WorldNet Services 721 1022 21934 310 DLA Systems Automation Center 6197 1015 635 481 BellSouth Network Solutions, 705 995 526 350 UUNET Technologies, Inc. 701 949 6753 777 UUNET Technologies, Inc. 18566 947 272 8 Covad Communications 174 944 5737 889 Cogent Communications 2386 917 558 707 AT&T Data Communications Serv 1239 850 2777 601 Sprint 19262 724 2206 188 Verizon Global Networks 20115 715 622 381 Charter Communications 209 694 3663 547 Qwest 11492 686 89 14 Cable One 22773 675 1741 40 Cox Communications, Inc. 7011 648 218 412 Citizens Utilities 6461 612 228 83 AboveNet Communications, Inc. 6198 601 583 226 BellSouth Network Solutions, 852 599 1084 383 Telus Advanced Communications 855 569 183 70 Canadian Research Network
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4134 1246 1010 CHINANET-BACKBONE 18566 947 939 Covad Communications 9583 913 898 Sify Limited 4755 947 877 Videsh Sanchar Nigam Ltd. Aut 721 1022 712 DLA Systems Automation Center 9498 768 697 BHARTI BT INTERNET LTD. 11492 686 672 Cable One 705 995 645 UUNET Technologies, Inc. 22773 675 635 Cox Communications, Inc. 19262 724 536 Verizon Global Networks 6197 1015 534 BellSouth Network Solutions, 6461 612 529 AboveNet Communications, Inc. 7018 1470 526 AT&T WorldNet Services 5668 533 510 CenturyTel Internet Holdings, 19916 563 509 OLM LLC 17488 519 502 Hathway IP Over Cable Interne 855 569 499 Canadian Research Network 4538 513 483 China Education and Research 7545 552 477 TPG Internet Pty Ltd 8151 703 476 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 65515 PRIVATE 87.251.34.0/24 12859 Business Internet Tr 65515 PRIVATE 87.251.36.0/24 12859 Business Internet Tr 65109 PRIVATE 193.162.110.0/24 3292 TDC Tele Danmark 65109 PRIVATE 193.162.111.0/24 3292 TDC Tele Danmark 65505 PRIVATE 195.190.149.0/24 3292 TDC Tele Danmark 65100 PRIVATE 199.85.124.0/24 26788 Enersource Telecom I 65535 PRIVATE 200.32.160.0/21 6429 AT&T Chile Internet 65535 PRIVATE 200.32.168.0/23 6429 AT&T Chile Internet 24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com 65100 PRIVATE 205.189.141.0/24 26788 Enersource Telecom I 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 213.154.248.0/29 12859 Business Internet Tr 65517 PRIVATE 213.154.248.8/29 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 65108 PRIVATE 217.28.160.0/24 3292 TDC Tele Danmark 65108 PRIVATE 217.28.161.0/24 3292 TDC Tele Danmark 65108 PRIVATE 217.28.162.0/24 3292 TDC Tele Danmark 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 192.0.2.0/24 812 Rogers WAVE 192.168.83.0/24 292 Energy Sciences Network 198.18.1.0/24 3301 TeliaNet Sweden
Advertised Unallocated Addresses --------------------------------
Network Origin AS Description 2.2.2.0/24 64666 PRIVATE ASN 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 /9:9 /10:11 /11:28 /12:95 /13:208 /14:369 /15:727 /16:8936 /17:3382 /18:5577 /19:12172 /20:13823 /21:12226 /22:15477 /23:16587 /24:109062 /25:458 /26:365 /27:298 /28:209 /29:228 /30:519 /31:0 /32:114
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 4323 1886 3180 Time Warner Telecom 18566 930 947 Covad Communications 6197 795 1015 BellSouth Network Solutions, 7018 776 1470 AT&T WorldNet Services 9583 743 913 Sify Limited 11492 674 686 Cable One 2386 634 917 AT&T Data Communications Serv 705 558 995 UUNET Technologies, Inc. 19916 557 563 OLM LLC 7011 556 648 Citizens Utilities 6461 540 612 AboveNet Communications, Inc. 4766 522 711 Korea Telecom (KIX) 2686 488 533 IBM 855 447 569 Canadian Research Network 6198 443 601 BellSouth Network Solutions, 9498 431 768 BHARTI BT INTERNET LTD. 702 428 642 UUNET - Commercial IP service 5668 416 533 CenturyTel Internet Holdings, 15270 414 445 PaeTec.net -a division of Pae 1239 395 850 Sprint
Number of /24s announced per /8 block (Global) ----------------------------------------------
2:1 4:9 8:43 12:1627 13:1 15:15 16:3 17:3 18:4 20:41 24:793 25:1 30:2 32:259 38:236 40:54 41:7 44:3 47:6 52:4 55:1 56:3 57:48 58:201 59:280 60:195 61:872 62:936 63:2109 64:3504 65:2270 66:3682 67:644 68:678 69:1572 70:390 71:85 72:823 74:57 75:1 80:788 81:679 82:686 83:398 84:399 85:582 86:410 87:407 88:117 89:345 91:1 121:3 122:3 123:1 124:277 125:557 128:169 129:185 130:120 131:315 132:35 133:9 134:159 135:49 136:178 137:85 138:206 139:138 140:488 141:135 142:400 143:169 144:230 145:42 146:317 147:142 148:347 149:194 150:115 151:96 152:72 153:118 154:6 155:206 156:187 157:144 158:166 159:173 160:93 161:80 162:246 163:161 164:279 165:230 166:174 167:243 168:613 169:125 170:354 171:14 183:1 190:97 192:5898 193:3372 194:2816 195:2165 196:875 198:4040 199:3325 200:4627 201:970 202:6935 203:7130 204:3972 205:2047 206:2607 207:3374 208:2256 209:3706 210:2149 211:755 212:1368 213:1580 214:362 215:41 216:4215 217:1398 218:313 219:261 220:734 221:351 222:199
End of report
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