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Routing Table Report 00:00 GMT Thu 10 Aug, 2006
Analysis Summary ----------------
BGP routing table entries examined: 208418 Prefixes after maximum aggregation: 108827 Unique aggregates announced to Internet: 95170 Total ASes present in the Internet Routing Table: 22904 Origin-only ASes present in the Internet Routing Table: 19945 Origin ASes announcing only one prefix: 9495 Transit ASes present in the Internet Routing Table: 2959 Transit-only ASes present in the Internet Routing Table: 69 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 24 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: 6 Prefixes being announced from unallocated address space: 11 Number of addresses announced to Internet: 1580036989 Equivalent to 94 /8s, 45 /16s and 115 /24s Percentage of available address space announced: 42.6 Percentage of allocated address space announced: 61.7 Percentage of available address space allocated: 69.1 Total number of prefixes smaller than registry allocations: 107334
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 44071 Total APNIC prefixes after maximum aggregation: 17657 Prefixes being announced from the APNIC address blocks: 41651 Unique aggregates announced from the APNIC address blocks: 18677 APNIC Region origin ASes present in the Internet Routing Table: 2683 APNIC Region origin ASes announcing only one prefix: 750 APNIC Region transit ASes present in the Internet Routing Table: 405 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 24 Number of APNIC addresses announced to Internet: 244724100 Equivalent to 14 /8s, 150 /16s and 49 /24s Percentage of available APNIC address space announced: 76.5
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: 109525 Total ARIN prefixes after maximum aggregation: 60154 Prefixes being announced from the ARIN address blocks: 81683 Unique aggregates announced from the ARIN address blocks: 27281 ARIN Region origin ASes present in the Internet Routing Table: 10891 ARIN Region origin ASes announcing only one prefix: 4090 ARIN Region transit ASes present in the Internet Routing Table: 1000 Average ARIN Region AS path length visible: 3.1 Max ARIN Region AS path length visible: 19 Number of ARIN addresses announced to Internet: 299150113 Equivalent to 17 /8s, 212 /16s and 171 /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: 40338 Total RIPE prefixes after maximum aggregation: 26376 Prefixes being announced from the RIPE address blocks: 37648 Unique aggregates announced from the RIPE address blocks: 24331 RIPE Region origin ASes present in the Internet Routing Table: 8393 RIPE Region origin ASes announcing only one prefix: 4375 RIPE Region transit ASes present in the Internet Routing Table: 1375 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 261477088 Equivalent to 15 /8s, 149 /16s and 210 /24s Percentage of available RIPE address space announced: 82.0
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: 12128 Total LACNIC prefixes after maximum aggregation: 3719 Prefixes being announced from the LACNIC address blocks: 10220 Unique aggregates announced from the LACNIC address blocks: 5865 LACNIC Region origin ASes present in the Internet Routing Table: 707 LACNIC Region origin ASes announcing only one prefix: 235 LACNIC Region transit ASes present in the Internet Routing Table: 126 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 24 Number of LACNIC addresses announced to Internet: 31840256 Equivalent to 1 /8s, 229 /16s and 216 /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: 2316 Total AfriNIC prefixes after maximum aggregation: 921 Prefixes being announced from the AfriNIC address blocks: 1592 Unique aggregates announced from the AfriNIC address blocks: 981 AfriNIC Region origin ASes present in the Internet Routing Table: 161 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: 3.8 Max AfriNIC Region AS path length visible: 16 Number of AfriNIC addresses announced to Internet: 4204288 Equivalent to 0 /8s, 64 /16s and 39 /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 1294 7916 240 CHINANET-BACKBONE 4755 962 255 63 Videsh Sanchar Nigam Ltd. Aut 9583 936 109 15 Sify Limited 9498 779 211 70 BHARTI BT INTERNET LTD. 4766 726 4435 306 Korea Telecom (KIX) 1221 647 1779 477 Telstra Pty Ltd 4538 604 2717 31 China Education and Research 7545 554 124 73 TPG Internet Pty Ltd 17488 522 32 18 Hathway IP Over Cable Interne 17676 490 7093 110 Softbank BB Corp. 9443 450 111 83 Primus Telecommunications 18101 436 85 22 Reliance Infocom Ltd Internet 4812 412 739 59 China Telecom (Shanghai) 17849 412 30 123 Telecommunications Technology 17974 379 129 12 PT TELEKOMUNIKASI INDONESIA 4802 363 80 151 Wantree Development 17557 360 29 167 Pakistan Telecom 7474 357 211 229 SingTel Optus Pty Ltd 2907 339 1733 312 SINET Japan 9929 313 198 38 China Netcom Corp.
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 617 1947 440 UUNET - Commercial IP service 3215 401 1760 97 France Telecom Transpac 3301 315 1186 300 TeliaNet Sweden 3320 295 5013 239 Deutsche Telekom AG 8220 283 471 266 COLT Telecommunications 24863 248 42 11 LINKdotNET AS number 680 246 2041 243 DFN-IP service G-WiN 6746 240 90 218 Dynamic Network Technologies, 3246 232 462 222 Song Networks 5089 229 1657 45 NTL Group Limited 1257 224 742 168 SWIPnet Swedish IP Network 8708 215 278 203 Romania Data Systems S.A. 3269 202 2246 73 TELECOM ITALIA 8551 202 182 27 Bezeq International 30890 202 19 85 SC Kappa Invexim SRL 8866 187 37 15 Bulgarian Telecommunication C 5416 181 12 7 BATELCO-BH 6830 177 813 37 UPC Distribution Services 3300 174 171 97 AUCS Communications Services 786 171 1778 171 The JANET IP Service
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 701 5014 6788 791 UUNET Technologies, Inc. 4323 3204 747 278 Time Warner Telecom 705 1502 559 657 UUNET Technologies, Inc. 7018 1501 6268 969 AT&T WorldNet Services 6197 1017 635 477 BellSouth Network Solutions, 721 1002 21942 311 DLA Systems Automation Center 18566 953 272 8 Covad Communications 174 937 5769 884 Cogent Communications 2386 929 574 701 AT&T Data Communications Serv 1239 850 2814 602 Sprint 7046 826 251 682 UUNET Technologies, Inc. 20115 730 651 380 Charter Communications 19262 725 2212 183 Verizon Global Networks 11492 723 90 16 Cable One 209 687 3661 541 Qwest 22773 682 1742 41 Cox Communications, Inc. 7011 676 221 431 Citizens Utilities 6461 605 228 83 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 3204 2926 Time Warner Telecom 4134 1294 1054 CHINANET-BACKBONE 18566 953 945 Covad Communications 9583 936 921 Sify Limited 4755 962 899 Videsh Sanchar Nigam Ltd. Aut 705 1502 845 UUNET Technologies, Inc. 9498 779 709 BHARTI BT INTERNET LTD. 11492 723 707 Cable One 721 1002 691 DLA Systems Automation Center 22773 682 641 Cox Communications, Inc. 4538 604 573 China Education and Research 8151 787 559 UniNet S.A. de C.V. 19262 725 542 Verizon Global Networks 6197 1017 540 BellSouth Network Solutions, 7018 1501 532 AT&T WorldNet Services 6461 605 522 AboveNet Communications, Inc. 5668 541 522 CenturyTel Internet Holdings, 19916 563 509 OLM LLC 17488 522 504 Hathway IP Over Cable Interne 855 566 493 Canadian Research Network
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
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 /14:375 /15:737 /16:8986 /17:3472 /18:5686 /19:12314 /20:14017 /21:12447 /22:15882 /23:17183 /24:114742 /25:469 /26:366 /27:298 /28:225 /29:197 /30:537 /31:0 /32:110
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 701 3744 5014 UUNET Technologies, Inc. 4323 1905 3204 Time Warner Telecom 705 950 1502 UUNET Technologies, Inc. 18566 936 953 Covad Communications 6197 797 1017 BellSouth Network Solutions, 7018 788 1501 AT&T WorldNet Services 9583 769 936 Sify Limited 11492 711 723 Cable One 2386 648 929 AT&T Data Communications Serv 7046 584 826 UUNET Technologies, Inc. 7011 582 676 Citizens Utilities 19916 557 563 OLM LLC 4766 537 726 Korea Telecom (KIX) 6461 533 605 AboveNet Communications, Inc. 2686 516 560 IBM 9498 460 779 BHARTI BT INTERNET LTD. 6198 442 599 BellSouth Network Solutions, 855 441 566 Canadian Research Network 15270 425 456 PaeTec.net -a division of Pae 5668 422 541 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global) ----------------------------------------------
2:1 4:9 8:50 12:1627 13:1 15:15 16:3 17:3 18:4 20:41 24:819 25:1 30:2 32:268 38:241 40:52 41:11 44:3 45:12 47:6 52:4 55:1 56:3 57:54 58:214 59:278 60:191 61:945 62:961 63:3388 64:3601 65:3674 66:3802 67:657 68:680 69:1587 70:390 71:88 72:872 74:71 75:5 80:771 81:684 82:696 83:412 84:414 85:595 86:398 87:467 88:143 89:393 91:1 121:13 122:23 123:1 124:349 125:595 128:162 129:188 130:119 131:319 132:35 133:8 134:160 135:48 136:178 137:86 138:214 139:136 140:492 141:136 142:394 143:189 144:240 145:40 146:309 147:145 148:353 149:190 150:114 151:96 152:74 153:117 154:6 155:214 156:178 157:172 158:166 159:173 160:94 161:86 162:217 163:164 164:281 165:227 166:182 167:242 168:601 169:125 170:355 171:14 190:118 192:5833 193:3417 194:2796 195:2178 196:890 198:4033 199:3372 200:4643 201:1041 202:6963 203:7122 204:4084 205:2151 206:2815 207:3577 208:3019 209:3864 210:2264 211:886 212:1362 213:1521 214:366 215:41 216:4396 217:1367 218:347 219:280 220:754 221:371 222:242
End of report
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