Routing Table Report 00:00 GMT Thu 19 Apr, 2007 Analysis Summary ---------------- BGP routing table entries examined: 227993 Prefixes after maximum aggregation: 118692 Deaggregation factor: 1.92 Unique aggregates announced to Internet: 106054 Total ASes present in the Internet Routing Table: 25027 Prefixes per ASN: 9.11 Origin-only ASes present in the Internet Routing Table: 21771 Origin ASes announcing only one prefix: 10488 Transit ASes present in the Internet Routing Table: 3256 Transit-only ASes present in the Internet Routing Table: 82 Average AS path length visible in the Internet Routing Table: 3.8 Max AS path length visible: 28 Max AS path prepend of ASN (34204) 23 Prefixes from unregistered ASNs in the Routing Table: 42 Unregistered ASNs in the Routing Table: 27 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 11 Number of addresses announced to Internet: 1710640960 Equivalent to 101 /8s, 246 /16s and 79 /24s Percentage of available address space announced: 46.2 Percentage of allocated address space announced: 62.7 Percentage of available address space allocated: 73.7 Total number of prefixes smaller than registry allocations: 121594 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 51141 Total APNIC prefixes after maximum aggregation: 20300 APNIC Deaggregation factor: 2.52 Prefixes being announced from the APNIC address blocks: 48066 Unique aggregates announced from the APNIC address blocks: 21146 APNIC Region origin ASes present in the Internet Routing Table: 2927 APNIC Prefixes per ASN: 16.42 APNIC Region origin ASes announcing only one prefix: 781 APNIC Region transit ASes present in the Internet Routing Table: 441 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 291848020 Equivalent to 17 /8s, 101 /16s and 63 /24s Percentage of available APNIC address space announced: 72.3 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, 116/6, 120/6, 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: 112894 Total ARIN prefixes after maximum aggregation: 63118 ARIN Deaggregation factor: 1.79 Prefixes being announced from the ARIN address blocks: 84104 Unique aggregates announced from the ARIN address blocks: 30297 ARIN Region origin ASes present in the Internet Routing Table: 11519 ARIN Prefixes per ASN: 7.30 ARIN Region origin ASes announcing only one prefix: 4397 ARIN Region transit ASes present in the Internet Routing Table: 1068 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 20 Number of ARIN addresses announced to Internet: 329064928 Equivalent to 19 /8s, 157 /16s and 33 /24s Percentage of available ARIN address space announced: 72.6 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, 96/6, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 46617 Total RIPE prefixes after maximum aggregation: 30140 RIPE Deaggregation factor: 1.55 Prefixes being announced from the RIPE address blocks: 43270 Unique aggregates announced from the RIPE address blocks: 27712 RIPE Region origin ASes present in the Internet Routing Table: 9532 RIPE Prefixes per ASN: 4.54 RIPE Region origin ASes announcing only one prefix: 5003 RIPE Region transit ASes present in the Internet Routing Table: 1534 Average RIPE Region AS path length visible: 4.2 Max RIPE Region AS path length visible: 28 Number of RIPE addresses announced to Internet: 303185344 Equivalent to 18 /8s, 18 /16s and 61 /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 40960-43007 RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 92/7, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 14645 Total LACNIC prefixes after maximum aggregation: 4097 LACNIC Deaggregation factor: 3.57 Prefixes being announced from the LACNIC address blocks: 12740 Unique aggregates announced from the LACNIC address blocks: 7117 LACNIC Region origin ASes present in the Internet Routing Table: 777 LACNIC Prefixes per ASN: 16.40 LACNIC Region origin ASes announcing only one prefix: 248 LACNIC Region transit ASes present in the Internet Routing Table: 141 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 38290688 Equivalent to 2 /8s, 72 /16s and 69 /24s Percentage of available LACNIC address space announced: 57.1 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: 2653 Total AfriNIC prefixes after maximum aggregation: 1029 AfriNIC Deaggregation factor: 2.58 Prefixes being announced from the AfriNIC address blocks: 1996 Unique aggregates announced from the AfriNIC address blocks: 1176 AfriNIC Region origin ASes present in the Internet Routing Table: 189 AfriNIC Prefixes per ASN: 10.56 AfriNIC Region origin ASes announcing only one prefix: 59 AfriNIC Region transit ASes present in the Internet Routing Table: 38 Average AfriNIC Region AS path length visible: 4.1 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 5979904 Equivalent to 0 /8s, 91 /16s and 63 /24s Percentage of available AfriNIC address space announced: 17.8 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 1273 9471 270 CHINANET-BACKBONE 4755 1202 383 76 Videsh Sanchar Nigam Ltd. Aut 9583 1095 78 381 Sify Limited 9498 971 469 74 BHARTI BT INTERNET LTD. 4766 782 4943 312 Korea Telecom (KIX) 23577 781 35 709 Korea Telecom (ATM-MPLS) 17488 663 43 34 Hathway IP Over Cable Interne 1221 625 1957 466 Telstra Pty Ltd 7545 614 142 79 TPG Internet Pty Ltd 18101 529 116 26 Reliance Infocom Ltd Internet 4668 505 68 10 LG-EDS Systems Inc. 17676 503 10935 65 Softbank BB Corp. 7474 468 217 268 SingTel Optus Pty Ltd 4812 463 799 74 China Telecom (Shanghai) 9443 459 115 74 Primus Telecommunications 9942 443 79 119 COMindico Australia 17557 361 35 170 Pakistan Telecom 4802 358 86 148 Wantree Development 9829 357 274 14 BSNL National Internet Backbo 2907 343 1765 314 SINET Japan RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 2119 926 897 645 Telenor Internet Access 702 518 1941 412 UUNET - Commercial IP service 24863 342 47 32 LINKdotNET AS number 3301 308 1455 288 TeliaNet Sweden 3320 302 4993 250 Deutsche Telekom AG 6746 273 95 250 Dynamic Network Technologies, 8220 261 461 251 COLT Telecommunications 680 258 2044 250 DFN-IP service G-WiN 3215 239 2256 92 France Telecom Transpac 8708 236 288 229 Romania Data Systems S.A. 5089 231 1657 52 NTL Group Limited 1257 230 1172 168 SWIPnet Swedish IP Network 3269 215 2583 73 TELECOM ITALIA 3246 212 341 201 Song Networks 8551 208 197 27 Bezeq International 30890 205 17 95 SC Kappa Invexim SRL 3352 200 1799 33 Ibernet, Internet Access Netw 20858 196 34 4 EgyNet 3300 190 171 90 AUCS Communications Services 9116 188 134 24 Goldenlines main autonomous s ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 4815 6677 741 UUNET Technologies, Inc. 7018 1509 10214 989 AT&T WorldNet Services 4323 1266 1022 358 Time Warner Telecom 2386 1101 530 744 AT&T Data Communications Serv 6478 1094 334 149 AT&T Worldnet Services 705 1059 537 540 UUNET Technologies, Inc. 11492 1036 102 16 Cable One 6197 1035 686 501 BellSouth Network Solutions, 18566 999 288 9 Covad Communications 174 954 6792 869 Cogent Communications 20115 821 734 430 Charter Communications 1239 810 2715 565 Sprint 7011 783 225 465 Citizens Utilities 7046 779 262 650 UUNET Technologies, Inc. 209 720 3734 573 Qwest 19262 709 2554 172 Verizon Global Networks 22773 701 1871 40 Cox Communications, Inc. 577 642 778 206 Bell Advanced Communications 721 615 21756 273 DLA Systems Automation Center 852 610 1095 377 Telus Advanced Communications Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4755 1202 1126 Videsh Sanchar Nigam Ltd. Aut 11492 1036 1020 Cable One 4134 1273 1003 CHINANET-BACKBONE 18566 999 990 Covad Communications 6478 1094 945 AT&T Worldnet Services 4323 1266 908 Time Warner Telecom 9498 971 897 BHARTI BT INTERNET LTD. 8151 1049 840 UniNet S.A. de C.V. 9583 1095 714 Sify Limited 22773 701 661 Cox Communications, Inc. 17488 663 629 Hathway IP Over Cable Interne 5668 592 575 CenturyTel Internet Holdings, 19262 709 537 Verizon Global Networks 7545 614 535 TPG Internet Pty Ltd 6197 1035 534 BellSouth Network Solutions, 7018 1509 520 AT&T WorldNet Services 705 1059 519 UUNET Technologies, Inc. 19916 568 514 OLM LLC 18101 529 503 Reliance Infocom Ltd Internet 855 566 495 Canadian Research Network List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 65534 PRIVATE 10.11.12.0/24 10886 University of Maryla 65332 PRIVATE 63.166.106.192/27 1803 SPRINT 64519 PRIVATE 87.198.212.128/25 34245 Magnet Networks AS 65100 PRIVATE 129.6.112.0/24 10886 University of Maryla 65027 PRIVATE 135.196.97.168/29 8190 VIATEL 42379 UNALLOCATED 193.33.54.0/23 21488 Emplot Ltd. Kiev, Uk 64513 PRIVATE 194.149.101.192/28 6721 The Terminal Bar: In 64527 PRIVATE 194.149.115.64/28 6721 The Terminal Bar: In 64524 PRIVATE 194.149.116.64/28 6721 The Terminal Bar: In 64514 PRIVATE 194.149.116.176/28 6721 The Terminal Bar: In 64532 PRIVATE 195.22.48.64/27 6721 The Terminal Bar: In 64526 PRIVATE 195.47.13.96/28 6721 The Terminal Bar: In 64542 PRIVATE 195.47.24.112/28 6721 The Terminal Bar: In 64542 PRIVATE 195.47.24.128/27 6721 The Terminal Bar: In 64542 PRIVATE 195.47.25.192/27 6721 The Terminal Bar: In 64519 PRIVATE 195.47.33.160/27 6721 The Terminal Bar: In 64519 PRIVATE 195.47.33.192/28 6721 The Terminal Bar: In 64526 PRIVATE 195.47.39.128/26 6721 The Terminal Bar: In 64513 PRIVATE 195.47.40.128/26 6721 The Terminal Bar: In 64513 PRIVATE 195.47.40.128/25 6721 The Terminal Bar: In 64513 PRIVATE 195.47.40.192/26 6721 The Terminal Bar: In 64540 PRIVATE 195.47.75.48/28 6721 The Terminal Bar: In 64516 PRIVATE 195.47.88.128/25 6721 The Terminal Bar: In 64526 PRIVATE 195.47.100.0/25 6721 The Terminal Bar: In 65000 PRIVATE 195.47.102.0/25 6721 The Terminal Bar: In 64514 PRIVATE 195.144.99.0/26 6721 The Terminal Bar: In 64514 PRIVATE 195.144.99.64/27 6721 The Terminal Bar: In 64514 PRIVATE 195.144.99.96/28 6721 The Terminal Bar: In 64514 PRIVATE 195.144.99.112/28 6721 The Terminal Bar: In 64514 PRIVATE 195.144.99.128/25 6721 The Terminal Bar: In 65106 PRIVATE 195.219.161.0/27 6453 Teleglobe Inc. 65011 PRIVATE 203.116.243.0/24 4657 Starhub Internet, Si 24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE 64588 PRIVATE 207.107.179.0/24 2491 fONOROLA 64512 PRIVATE 208.103.63.0/24 32703 Indiana Fiber Networ 65517 PRIVATE 213.154.248.0/29 12859 Business Internet Tr 65517 PRIVATE 213.154.248.8/29 12859 Business Internet Tr 22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So 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 10.11.12.0/24 65534 * 192.0.2.0/24 812 Rogers WAVE Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 7.1.1.0/24 1239 Sprint 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 172.33.1.0/24 7018 AT&T WorldNet Services 192.0.10.0/24 9498 BHARTI BT INTERNET LTD. 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 192.153.136.0/21 721 DLA Systems Automation Center 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 /8:19 /9:9 /10:13 /11:34 /12:125 /13:248 /14:450 /15:864 /16:9375 /17:3876 /18:6427 /19:13570 /20:15445 /21:13924 /22:18389 /23:19925 /24:121753 /25:1017 /26:1105 /27:569 /28:186 /29:162 /30:418 /31:0 /32:90 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 3591 4815 UUNET Technologies, Inc. 6478 1085 1094 AT&T Worldnet Services 11492 1022 1036 Cable One 18566 981 999 Covad Communications 9583 934 1095 Sify Limited 2119 829 926 Telenor Internet Access 2386 820 1101 AT&T Data Communications Serv 7018 820 1509 AT&T WorldNet Services 6197 797 1035 BellSouth Network Solutions, 23577 767 781 Korea Telecom (ATM-MPLS) 7011 686 783 Citizens Utilities 705 675 1059 UUNET Technologies, Inc. 9498 636 971 BHARTI BT INTERNET LTD. 4755 591 1202 Videsh Sanchar Nigam Ltd. Aut 4766 588 782 Korea Telecom (KIX) 19916 563 568 OLM LLC 7046 547 779 UUNET Technologies, Inc. 4323 527 1266 Time Warner Telecom 4668 495 505 LG-EDS Systems Inc. 15270 494 527 PaeTec.net -a division of Pae Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:9 7:1 8:70 9:1 10:1 12:1815 15:19 16:3 17:3 18:8 20:37 24:955 25:1 32:174 38:296 40:57 41:120 43:6 44:2 47:4 52:4 55:1 56:3 57:53 58:365 59:368 60:265 61:925 62:1026 63:3361 64:3226 65:3655 66:3361 67:813 68:646 69:1806 70:499 71:111 72:1257 73:1 74:395 75:254 76:36 77:142 80:844 81:815 82:736 83:403 84:437 85:803 86:445 87:450 88:244 89:841 90:21 91:256 97:1 116:18 121:177 122:525 123:96 124:775 125:932 128:272 129:222 130:123 131:349 132:52 133:10 134:194 135:39 136:180 137:88 138:194 139:114 140:479 141:149 142:393 143:210 144:290 145:43 146:323 147:148 148:398 149:145 150:115 151:123 152:96 153:121 154:5 155:252 156:152 157:185 158:160 159:155 160:104 161:91 162:236 163:144 164:462 165:404 166:249 167:278 168:502 169:120 170:396 171:15 172:1 189:263 190:570 192:5810 193:3795 194:3087 195:2275 196:985 198:3881 199:3347 200:4680 201:1021 202:7274 203:7469 204:4101 205:2216 206:2608 207:3164 208:3285 209:3750 210:2477 211:977 212:1338 213:1505 214:410 215:39 216:4177 217:1159 218:373 219:361 220:942 221:401 222:258 End of report