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Routing Table Report 00:00 GMT Sun 27 Aug, 2006
Analysis Summary ----------------
BGP routing table entries examined: 210062 Prefixes after maximum aggregation: 109119 Unique aggregates announced to Internet: 95190 Total ASes present in the Internet Routing Table: 23027 Origin-only ASes present in the Internet Routing Table: 20050 Origin ASes announcing only one prefix: 9555 Transit ASes present in the Internet Routing Table: 2977 Transit-only ASes present in the Internet Routing Table: 69 Average AS path length visible in the Internet Routing Table: 3.4 Max AS path length visible: 29 Max AS path prepend of ASN (36728) 27 Prefixes from unregistered ASNs in the Routing Table: 27 Unregistered ASNs in the Routing Table: 18 Special use prefixes present in the Routing Table: 6 Prefixes being announced from unallocated address space: 10 Number of addresses announced to Internet: 1577999805 Equivalent to 94 /8s, 14 /16s and 93 /24s Percentage of available address space announced: 42.6 Percentage of allocated address space announced: 61.6 Percentage of available address space allocated: 69.1 Total number of prefixes smaller than registry allocations: 108334
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 44401 Total APNIC prefixes after maximum aggregation: 17473 Prefixes being announced from the APNIC address blocks: 41974 Unique aggregates announced from the APNIC address blocks: 18268 APNIC Region origin ASes present in the Internet Routing Table: 2692 APNIC Region origin ASes announcing only one prefix: 754 APNIC Region transit ASes present in the Internet Routing Table: 411 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 24 Number of APNIC addresses announced to Internet: 261913728 Equivalent to 15 /8s, 156 /16s and 124 /24s Percentage of available APNIC address space announced: 81.9
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: 110343 Total ARIN prefixes after maximum aggregation: 60428 Prefixes being announced from the ARIN address blocks: 82305 Unique aggregates announced from the ARIN address blocks: 27424 ARIN Region origin ASes present in the Internet Routing Table: 10962 ARIN Region origin ASes announcing only one prefix: 4128 ARIN Region transit ASes present in the Internet Routing Table: 1001 Average ARIN Region AS path length visible: 2.9 Max ARIN Region AS path length visible: 29 Number of ARIN addresses announced to Internet: 296170593 Equivalent to 17 /8s, 167 /16s and 52 /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: 40515 Total RIPE prefixes after maximum aggregation: 26500 Prefixes being announced from the RIPE address blocks: 37819 Unique aggregates announced from the RIPE address blocks: 24468 RIPE Region origin ASes present in the Internet Routing Table: 8427 RIPE Region origin ASes announcing only one prefix: 4396 RIPE Region transit ASes present in the Internet Routing Table: 1383 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 28 Number of RIPE addresses announced to Internet: 261880416 Equivalent to 15 /8s, 155 /16s and 250 /24s Percentage of available RIPE address space announced: 82.2
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: 12376 Total LACNIC prefixes after maximum aggregation: 3772 Prefixes being announced from the LACNIC address blocks: 10403 Unique aggregates announced from the LACNIC address blocks: 5980 LACNIC Region origin ASes present in the Internet Routing Table: 714 LACNIC Region origin ASes announcing only one prefix: 232 LACNIC Region transit ASes present in the Internet Routing Table: 128 Average LACNIC Region AS path length visible: 4.2 Max LACNIC Region AS path length visible: 16 Number of LACNIC addresses announced to Internet: 32251136 Equivalent to 1 /8s, 236 /16s and 29 /24s Percentage of available LACNIC address space announced: 48.1
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: 2401 Total AfriNIC prefixes after maximum aggregation: 946 Prefixes being announced from the AfriNIC address blocks: 1673 Unique aggregates announced from the AfriNIC address blocks: 999 AfriNIC Region origin ASes present in the Internet Routing Table: 163 AfriNIC Region origin ASes announcing only one prefix: 45 AfriNIC Region transit ASes present in the Internet Routing Table: 25 Average AfriNIC Region AS path length visible: 3.7 Max AfriNIC Region AS path length visible: 17 Number of AfriNIC addresses announced to Internet: 4216832 Equivalent to 0 /8s, 64 /16s and 88 /24s Percentage of available AfriNIC address space announced: 12.6
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 1305 7966 240 CHINANET-BACKBONE 4755 972 255 63 Videsh Sanchar Nigam Ltd. Aut 9583 947 109 15 Sify Limited 9498 802 211 71 BHARTI BT INTERNET LTD. 4766 751 4435 309 Korea Telecom (KIX) 1221 650 1779 479 Telstra Pty Ltd 4538 597 2717 31 China Education and Research 7545 543 124 74 TPG Internet Pty Ltd 17488 522 32 18 Hathway IP Over Cable Interne 17676 497 10933 62 Softbank BB Corp. 9443 450 111 83 Primus Telecommunications 18101 445 85 18 Reliance Infocom Ltd Internet 4812 415 739 59 China Telecom (Shanghai) 17849 412 30 123 Telecommunications Technology 4802 406 84 148 Wantree Development 17974 377 129 12 PT TELEKOMUNIKASI INDONESIA 7474 359 211 230 SingTel Optus Pty Ltd 17557 358 29 167 Pakistan Telecom 2907 338 1717 311 SINET Japan 4837 320 3539 138 chinanet IDC center beijing n
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 557 1947 438 UUNET - Commercial IP service 3215 399 1760 97 France Telecom Transpac 3301 315 1186 300 TeliaNet Sweden 3320 297 5013 240 Deutsche Telekom AG 8220 286 471 268 COLT Telecommunications 24863 254 42 11 LINKdotNET AS number 1257 249 744 168 SWIPnet Swedish IP Network 680 248 2041 244 DFN-IP service G-WiN 6746 243 91 222 Dynamic Network Technologies, 5089 237 1657 48 NTL Group Limited 3246 231 462 221 Song Networks 8708 216 278 203 Romania Data Systems S.A. 30890 203 18 84 SC Kappa Invexim SRL 3269 202 2246 73 TELECOM ITALIA 8551 202 182 27 Bezeq International 6830 195 879 43 UPC Distribution Services 8866 182 37 15 Bulgarian Telecommunication C 5416 181 12 7 BATELCO-BH 3300 174 171 95 AUCS Communications Services 786 171 1763 171 The JANET IP Service
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 701 5002 6796 786 UUNET Technologies, Inc. 4323 3215 768 288 Time Warner Telecom 7018 1485 6267 964 AT&T WorldNet Services 705 1478 556 649 UUNET Technologies, Inc. 174 1119 5754 885 Cogent Communications 6197 1019 637 479 BellSouth Network Solutions, 721 998 21926 310 DLA Systems Automation Center 2386 959 561 724 AT&T Data Communications Serv 18566 958 272 8 Covad Communications 1239 851 2799 602 Sprint 7046 822 250 680 UUNET Technologies, Inc. 20115 736 658 385 Charter Communications 19262 735 2268 189 Verizon Global Networks 11492 728 90 16 Cable One 22773 700 1744 43 Cox Communications, Inc. 209 684 3641 539 Qwest 7011 667 207 422 Citizens Utilities 852 604 1068 384 Telus Advanced Communications 6461 603 221 90 AboveNet Communications, Inc. 19916 563 49 54 OLM LLC
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4323 3215 2927 Time Warner Telecom 4134 1305 1065 CHINANET-BACKBONE 18566 958 950 Covad Communications 9583 947 932 Sify Limited 4755 972 909 Videsh Sanchar Nigam Ltd. Aut 705 1478 829 UUNET Technologies, Inc. 9498 802 731 BHARTI BT INTERNET LTD. 11492 728 712 Cable One 721 998 688 DLA Systems Automation Center 22773 700 657 Cox Communications, Inc. 4538 597 566 China Education and Research 8151 790 563 UniNet S.A. de C.V. 19262 735 546 Verizon Global Networks 6197 1019 540 BellSouth Network Solutions, 7018 1485 521 AT&T WorldNet Services 5668 533 515 CenturyTel Internet Holdings, 6461 603 513 AboveNet Communications, Inc. 19916 563 509 OLM LLC 17488 522 504 Hathway IP Over Cable Interne 855 559 489 Canadian Research Network
List of Unregistered Origin ASNs (Global) -----------------------------------------
Bad AS Designation Network Transit AS Description 64666 PRIVATE 2.2.2.0/24 8001 Net Access Corporati 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 65014 PRIVATE 135.196.176.96/27 8190 VIATEL 65106 PRIVATE 195.219.161.0/27 6453 Teleglobe Inc. 65517 PRIVATE 198.32.176.0/24 293 Energy Sciences Netw 65000 PRIVATE 199.133.62.0/24 10886 University of Maryla 65000 PRIVATE 199.133.63.0/24 10886 University of Maryla 65010 PRIVATE 203.117.213.0/24 9255 Singapore Telecom 24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com 64659 PRIVATE 210.184.109.0/24 9729 iAdvantage Limited 65010 PRIVATE 212.2.12.160/28 8190 VIATEL 65016 PRIVATE 212.2.26.64/29 8190 VIATEL 65016 PRIVATE 212.2.31.184/30 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, 65013 PRIVATE 213.235.33.0/27 8190 VIATEL 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 192.0.2.0/24 812 Rogers WAVE 192.168.83.0/24 292 Energy Sciences Network
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 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 192.249.0.0/20 3450 University of Tennessee, Knox
Number of prefixes announced per prefix length (Global) -------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:9 /10:13 /11:31 /12:103 /13:217 /14:379 /15:742 /16:9007 /17:3505 /18:5725 /19:12415 /20:14163 /21:12552 /22:16071 /23:17392 /24:115361 /25:514 /26:479 /27:306 /28:225 /29:197 /30:521 /31:0 /32:116
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 701 3735 5002 UUNET Technologies, Inc. 4323 1905 3215 Time Warner Telecom 18566 941 958 Covad Communications 705 925 1478 UUNET Technologies, Inc. 6197 799 1019 BellSouth Network Solutions, 9583 778 947 Sify Limited 7018 776 1485 AT&T WorldNet Services 11492 716 728 Cable One 2386 679 959 AT&T Data Communications Serv 7046 584 822 UUNET Technologies, Inc. 7011 572 667 Citizens Utilities 4766 562 751 Korea Telecom (KIX) 19916 557 563 OLM LLC 6461 533 603 AboveNet Communications, Inc. 2686 517 562 IBM 9498 480 802 BHARTI BT INTERNET LTD. 855 436 559 Canadian Research Network 15270 434 465 PaeTec.net -a division of Pae 5668 416 533 CenturyTel Internet Holdings, 4755 409 972 Videsh Sanchar Nigam Ltd. Aut
Number of /24s announced per /8 block (Global) ----------------------------------------------
2:1 4:9 8:49 12:1637 13:1 15:15 16:3 17:3 18:4 20:41 24:815 25:1 32:269 38:271 40:54 41:17 44:3 47:6 52:4 55:1 56:3 57:54 58:219 59:290 60:189 61:927 62:951 63:3389 64:3588 65:3625 66:3848 67:666 68:668 69:1618 70:390 71:89 72:887 73:2 74:77 75:6 80:804 81:704 82:711 83:391 84:411 85:608 86:397 87:440 88:169 89:417 91:1 121:17 122:6 123:1 124:347 125:612 128:166 129:204 130:122 131:315 132:37 133:9 134:161 135:48 136:177 137:85 138:215 139:137 140:523 141:134 142:389 143:192 144:239 145:41 146:325 147:141 148:354 149:179 150:114 151:116 152:75 153:117 154:6 155:210 156:173 157:180 158:164 159:174 160:93 161:88 162:219 163:166 164:276 165:227 166:184 167:240 168:599 169:128 170:361 171:14 189:2 190:204 192:5840 193:3423 194:2796 195:2191 196:941 198:4042 199:3382 200:4630 201:1060 202:6969 203:7179 204:4081 205:2175 206:2831 207:3612 208:3053 209:3886 210:2229 211:903 212:1358 213:1522 214:370 215:41 216:4419 217:1307 218:354 219:300 220:783 221:382 222:253
End of report
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