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Routing Table Report 00:00 GMT Sat 05 Aug, 2006
Analysis Summary ----------------
BGP routing table entries examined: 207892 Prefixes after maximum aggregation: 108581 Unique aggregates announced to Internet: 94965 Total ASes present in the Internet Routing Table: 22867 Origin-only ASes present in the Internet Routing Table: 19879 Origin ASes announcing only one prefix: 9486 Transit ASes present in the Internet Routing Table: 2988 Transit-only ASes present in the Internet Routing Table: 72 Average AS path length visible in the Internet Routing Table: 3.9 Max AS path length visible: 26 Max AS path prepend of ASN (24076) 20 Prefixes from unregistered ASNs in the Routing Table: 41 Unregistered ASNs in the Routing Table: 17 Special use prefixes present in the Routing Table: 7 Prefixes being announced from unallocated address space: 11 Number of addresses announced to Internet: 1578689021 Equivalent to 94 /8s, 24 /16s and 225 /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: 107010
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 43849 Total APNIC prefixes after maximum aggregation: 17612 Prefixes being announced from the APNIC address blocks: 41444 Unique aggregates announced from the APNIC address blocks: 18600 APNIC Region origin ASes present in the Internet Routing Table: 2673 APNIC Region origin ASes announcing only one prefix: 751 APNIC Region transit ASes present in the Internet Routing Table: 403 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 24 Number of APNIC addresses announced to Internet: 244270724 Equivalent to 14 /8s, 143 /16s and 70 /24s Percentage of available APNIC address space announced: 76.4
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: 109340 Total ARIN prefixes after maximum aggregation: 60028 Prefixes being announced from the ARIN address blocks: 81567 Unique aggregates announced from the ARIN address blocks: 27248 ARIN Region origin ASes present in the Internet Routing Table: 10879 ARIN Region origin ASes announcing only one prefix: 4084 ARIN Region transit ASes present in the Internet Routing Table: 1009 Average ARIN Region AS path length visible: 3.5 Max ARIN Region AS path length visible: 19 Number of ARIN addresses announced to Internet: 298976033 Equivalent to 17 /8s, 210 /16s and 3 /24s Percentage of available ARIN address space announced: 77.5
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: 40218 Total RIPE prefixes after maximum aggregation: 26298 Prefixes being announced from the RIPE address blocks: 37510 Unique aggregates announced from the RIPE address blocks: 24257 RIPE Region origin ASes present in the Internet Routing Table: 8367 RIPE Region origin ASes announcing only one prefix: 4367 RIPE Region transit ASes present in the Internet Routing Table: 1387 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 25 Number of RIPE addresses announced to Internet: 260933344 Equivalent to 15 /8s, 141 /16s and 134 /24s Percentage of available RIPE address space announced: 81.9
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: 12148 Total LACNIC prefixes after maximum aggregation: 3727 Prefixes being announced from the LACNIC address blocks: 10217 Unique aggregates announced from the LACNIC address blocks: 5853 LACNIC Region origin ASes present in the Internet Routing Table: 715 LACNIC Region origin ASes announcing only one prefix: 237 LACNIC Region transit ASes present in the Internet Routing Table: 130 Average LACNIC Region AS path length visible: 4.6 Max LACNIC Region AS path length visible: 26 Number of LACNIC addresses announced to Internet: 31797248 Equivalent to 1 /8s, 229 /16s and 48 /24s Percentage of available LACNIC address space announced: 47.4
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: 2297 Total AfriNIC prefixes after maximum aggregation: 916 Prefixes being announced from the AfriNIC address blocks: 1585 Unique aggregates announced from the AfriNIC address blocks: 967 AfriNIC Region origin ASes present in the Internet Routing Table: 161 AfriNIC Region origin ASes announcing only one prefix: 47 AfriNIC Region transit ASes present in the Internet Routing Table: 24 Average AfriNIC Region AS path length visible: 4.1 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 4202752 Equivalent to 0 /8s, 64 /16s and 33 /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 1293 7914 239 CHINANET-BACKBONE 4755 957 255 62 Videsh Sanchar Nigam Ltd. Aut 9583 944 109 15 Sify Limited 9498 763 211 70 BHARTI BT INTERNET LTD. 4766 724 4435 306 Korea Telecom (KIX) 1221 647 1779 477 Telstra Pty Ltd 7545 553 124 73 TPG Internet Pty Ltd 4538 523 2717 32 China Education and Research 17488 520 32 18 Hathway IP Over Cable Interne 17676 490 7093 110 Softbank BB Corp. 9443 450 111 83 Primus Telecommunications 18101 433 85 22 Reliance Infocom Ltd Internet 4812 415 740 61 China Telecom (Shanghai) 17849 412 30 123 Telecommunications Technology 17557 381 30 174 Pakistan Telecom 4802 378 81 167 Wantree Development 17974 377 129 14 PT TELEKOMUNIKASI INDONESIA 7474 357 211 229 SingTel Optus Pty Ltd 2907 339 1733 312 SINET Japan 9929 323 213 42 China Netcom Corp.
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 623 1948 442 UUNET - Commercial IP service 3215 401 1760 97 France Telecom Transpac 3301 316 1187 301 TeliaNet Sweden 3320 294 5013 238 Deutsche Telekom AG 8220 283 471 266 COLT Telecommunications 680 246 2041 243 DFN-IP service G-WiN 6746 241 90 219 Dynamic Network Technologies, 24863 239 42 11 LINKdotNET AS number 3246 232 462 222 Song Networks 5089 230 1657 45 NTL Group Limited 1257 224 742 168 SWIPnet Swedish IP Network 8708 215 278 203 Romania Data Systems S.A. 3269 203 2246 73 TELECOM ITALIA 8551 202 182 27 Bezeq International 30890 201 19 84 SC Kappa Invexim SRL 8866 187 37 15 Bulgarian Telecommunication C 5416 180 12 7 BATELCO-BH 6830 177 813 37 UPC Distribution Services 3300 175 171 98 AUCS Communications Services 786 170 1762 170 The JANET IP Service
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 701 5018 6786 790 UUNET Technologies, Inc. 4323 3197 746 277 Time Warner Telecom 7018 1508 6266 969 AT&T WorldNet Services 705 1501 559 657 UUNET Technologies, Inc. 6197 1016 634 486 BellSouth Network Solutions, 721 1009 21926 311 DLA Systems Automation Center 18566 952 272 8 Covad Communications 174 938 5769 884 Cogent Communications 2386 918 574 698 AT&T Data Communications Serv 1239 862 2799 611 Sprint 7046 829 251 685 UUNET Technologies, Inc. 19262 728 2228 187 Verizon Global Networks 20115 725 651 379 Charter Communications 11492 722 89 15 Cable One 209 691 3660 539 Qwest 22773 678 1741 38 Cox Communications, Inc. 7011 669 222 426 Citizens Utilities 6461 607 228 85 AboveNet Communications, Inc. 6198 599 556 238 BellSouth Network Solutions, 852 596 1068 382 Telus Advanced Communications
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4323 3197 2920 Time Warner Telecom 4134 1293 1054 CHINANET-BACKBONE 18566 952 944 Covad Communications 9583 944 929 Sify Limited 4755 957 895 Videsh Sanchar Nigam Ltd. Aut 705 1501 844 UUNET Technologies, Inc. 11492 722 707 Cable One 721 1009 698 DLA Systems Automation Center 9498 763 693 BHARTI BT INTERNET LTD. 22773 678 640 Cox Communications, Inc. 8151 788 561 UniNet S.A. de C.V. 19262 728 541 Verizon Global Networks 7018 1508 539 AT&T WorldNet Services 6197 1016 530 BellSouth Network Solutions, 6461 607 522 AboveNet Communications, Inc. 5668 538 515 CenturyTel Internet Holdings, 19916 563 509 OLM LLC 17488 520 502 Hathway IP Over Cable Interne 855 567 493 Canadian Research Network 4538 523 491 China Education and Research
List of Unregistered Origin ASNs (Global) -----------------------------------------
Bad AS Designation Network Transit AS Description 65333 PRIVATE 1.0.0.0/8 23342 UnitedLayer, Inc. 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 65350 PRIVATE 124.236.240.0/20 17672 asn for Hebei Provin 65014 PRIVATE 135.196.176.96/27 8190 VIATEL 65106 PRIVATE 195.219.161.0/27 6453 Teleglobe Inc. 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 213.154.248.0/29 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 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 65350 PRIVATE 219.148.0.0/22 17672 asn for Hebei Provin 65350 PRIVATE 219.148.4.0/23 17672 asn for Hebei Provin 65350 PRIVATE 219.148.8.0/21 17672 asn for Hebei Provin 65350 PRIVATE 219.148.24.0/21 17672 asn for Hebei Provin 65350 PRIVATE 219.148.32.0/19 17672 asn for Hebei Provin 65350 PRIVATE 222.222.0.0/21 17672 asn for Hebei Provin 65350 PRIVATE 222.222.8.0/21 17672 asn for Hebei Provin 65350 PRIVATE 222.222.16.0/20 17672 asn for Hebei Provin 65350 PRIVATE 222.222.32.0/20 17672 asn for Hebei Provin 65350 PRIVATE 222.222.48.0/20 17672 asn for Hebei Provin 65350 PRIVATE 222.222.208.0/21 17672 asn for Hebei Provin 65350 PRIVATE 222.222.216.0/21 17672 asn for Hebei Provin 65350 PRIVATE 222.223.187.0/24 17672 asn for Hebei Provin 65350 PRIVATE 222.223.188.0/22 17672 asn for Hebei Provin 65350 PRIVATE 222.223.192.0/22 17672 asn for Hebei Provin 65350 PRIVATE 222.223.196.0/23 17672 asn for Hebei Provin 65350 PRIVATE 222.223.200.0/22 17672 asn for Hebei Provin 65350 PRIVATE 222.223.206.0/23 17672 asn for Hebei Provin 65350 PRIVATE 222.223.224.0/19 17672 asn for Hebei Provin
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 1.0.0.0/8 65333 PRIVATE ASN 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 /10:11 /11:28 /12:97 /13:211 /14:373 /15:735 /16:8977 /17:3466 /18:5666 /19:12299 /20:13928 /21:12392 /22:15838 /23:17136 /24:114535 /25:461 /26:362 /27:300 /28:219 /29:194 /30:525 /31:0 /32:111
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 701 3748 5018 UUNET Technologies, Inc. 4323 1901 3197 Time Warner Telecom 705 947 1501 UUNET Technologies, Inc. 18566 935 952 Covad Communications 7018 798 1508 AT&T WorldNet Services 6197 796 1016 BellSouth Network Solutions, 9583 775 944 Sify Limited 11492 710 722 Cable One 2386 637 918 AT&T Data Communications Serv 7046 587 829 UUNET Technologies, Inc. 7011 575 669 Citizens Utilities 19916 557 563 OLM LLC 4766 535 724 Korea Telecom (KIX) 6461 533 607 AboveNet Communications, Inc. 2686 515 559 IBM 9498 445 763 BHARTI BT INTERNET LTD. 6198 443 599 BellSouth Network Solutions, 855 441 567 Canadian Research Network 15270 424 455 PaeTec.net -a division of Pae 5668 421 538 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global) ----------------------------------------------
2:1 4:9 8:50 12:1617 13:1 15:15 16:3 17:3 18:4 20:41 24:811 25:1 30:2 32:264 38:240 40:53 41:10 44:3 45:9 47:6 52:4 55:1 56:3 57:54 58:211 59:277 60:184 61:954 62:960 63:3403 64:3611 65:3670 66:3799 67:648 68:681 69:1591 70:395 71:87 72:873 74:66 75:5 80:769 81:684 82:691 83:393 84:412 85:580 86:401 87:469 88:143 89:381 91:1 121:13 122:3 123:1 124:346 125:579 128:163 129:188 130:119 131:319 132:35 133:8 134:160 135:49 136:177 137:86 138:213 139:136 140:490 141:137 142:395 143:186 144:243 145:40 146:317 147:144 148:352 149:191 150:114 151:96 152:73 153:117 154:6 155:213 156:180 157:140 158:166 159:173 160:93 161:80 162:245 163:164 164:281 165:228 166:182 167:244 168:598 169:125 170:354 171:14 190:115 192:5835 193:3416 194:2808 195:2171 196:887 198:4029 199:3368 200:4644 201:1046 202:6948 203:7131 204:4077 205:2159 206:2816 207:3564 208:3022 209:3847 210:2245 211:877 212:1362 213:1507 214:363 215:40 216:4381 217:1357 218:343 219:292 220:747 221:376 222:242
End of report
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