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Routing Table Report 00:00 GMT Thu 03 Aug, 2006
Analysis Summary ----------------
BGP routing table entries examined: 207983 Prefixes after maximum aggregation: 108574 Unique aggregates announced to Internet: 94730 Total ASes present in the Internet Routing Table: 22860 Origin-only ASes present in the Internet Routing Table: 19884 Origin ASes announcing only one prefix: 9475 Transit ASes present in the Internet Routing Table: 2976 Transit-only ASes present in the Internet Routing Table: 71 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: 40 Unregistered ASNs in the Routing Table: 16 Special use prefixes present in the Routing Table: 7 Prefixes being announced from unallocated address space: 11 Number of addresses announced to Internet: 1578298109 Equivalent to 94 /8s, 18 /16s and 234 /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: 106917
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 43897 Total APNIC prefixes after maximum aggregation: 17623 Prefixes being announced from the APNIC address blocks: 41495 Unique aggregates announced from the APNIC address blocks: 18582 APNIC Region origin ASes present in the Internet Routing Table: 2679 APNIC Region origin ASes announcing only one prefix: 752 APNIC Region transit ASes present in the Internet Routing Table: 407 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 24 Number of APNIC addresses announced to Internet: 244112004 Equivalent to 14 /8s, 140 /16s and 218 /24s Percentage of available APNIC address space announced: 76.3
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, 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: 109641 Total ARIN prefixes after maximum aggregation: 60047 Prefixes being announced from the ARIN address blocks: 81762 Unique aggregates announced from the ARIN address blocks: 27233 ARIN Region origin ASes present in the Internet Routing Table: 10873 ARIN Region origin ASes announcing only one prefix: 4082 ARIN Region transit ASes present in the Internet Routing Table: 1006 Average ARIN Region AS path length visible: 3.1 Max ARIN Region AS path length visible: 19 Number of ARIN addresses announced to Internet: 298702369 Equivalent to 17 /8s, 205 /16s and 214 /24s Percentage of available ARIN address space announced: 77.4
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: 40096 Total RIPE prefixes after maximum aggregation: 26280 Prefixes being announced from the RIPE address blocks: 37404 Unique aggregates announced from the RIPE address blocks: 24223 RIPE Region origin ASes present in the Internet Routing Table: 8366 RIPE Region origin ASes announcing only one prefix: 4358 RIPE Region transit ASes present in the Internet Routing Table: 1379 Average RIPE Region AS path length visible: 4.1 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 261326560 Equivalent to 15 /8s, 147 /16s and 134 /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: 12023 Total LACNIC prefixes after maximum aggregation: 3710 Prefixes being announced from the LACNIC address blocks: 10146 Unique aggregates announced from the LACNIC address blocks: 5784 LACNIC Region origin ASes present in the Internet Routing Table: 712 LACNIC Region origin ASes announcing only one prefix: 238 LACNIC Region transit ASes present in the Internet Routing Table: 128 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 24 Number of LACNIC addresses announced to Internet: 31351040 Equivalent to 1 /8s, 222 /16s and 97 /24s Percentage of available LACNIC address space announced: 46.7
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: 2287 Total AfriNIC prefixes after maximum aggregation: 914 Prefixes being announced from the AfriNIC address blocks: 1590 Unique aggregates announced from the AfriNIC address blocks: 975 AfriNIC Region origin ASes present in the Internet Routing Table: 159 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: 3.9 Max AfriNIC Region AS path length visible: 14 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 1293 7914 239 CHINANET-BACKBONE 4755 951 255 62 Videsh Sanchar Nigam Ltd. Aut 9583 941 109 15 Sify Limited 9498 765 211 70 BHARTI BT INTERNET LTD. 4766 723 4435 305 Korea Telecom (KIX) 1221 646 1779 477 Telstra Pty Ltd 7545 552 124 73 TPG Internet Pty Ltd 4538 523 2717 32 China Education and Research 17488 519 32 17 Hathway IP Over Cable Interne 17676 490 7093 110 Softbank BB Corp. 9443 450 111 83 Primus Telecommunications 18101 434 85 22 Reliance Infocom Ltd Internet 4812 416 740 61 China Telecom (Shanghai) 17849 412 30 123 Telecommunications Technology 17557 380 30 175 Pakistan Telecom 4802 378 81 167 Wantree Development 17974 376 129 14 PT TELEKOMUNIKASI INDONESIA 7474 357 211 229 SingTel Optus Pty Ltd 2907 339 1733 312 SINET Japan 9929 325 216 43 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 290 5012 235 Deutsche Telekom AG 8220 283 471 266 COLT Telecommunications 680 246 2041 243 DFN-IP service G-WiN 6746 239 90 217 Dynamic Network Technologies, 24863 238 42 10 LINKdotNET AS number 3246 232 462 222 Song Networks 5089 229 1657 45 NTL Group Limited 1257 220 742 168 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 202 19 82 SC Kappa Invexim SRL 8866 188 37 15 Bulgarian Telecommunication C 5416 180 12 7 BATELCO-BH 6830 177 813 37 UPC Distribution Services 3300 174 171 97 AUCS Communications Services 786 170 1778 170 The JANET IP Service
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 701 5032 6786 794 UUNET Technologies, Inc. 4323 3192 746 275 Time Warner Telecom 705 1500 558 656 UUNET Technologies, Inc. 7018 1495 6264 958 AT&T WorldNet Services 6197 1020 636 478 BellSouth Network Solutions, 721 1008 21926 310 DLA Systems Automation Center 18566 951 272 8 Covad Communications 174 940 5768 885 Cogent Communications 2386 918 574 698 AT&T Data Communications Serv 1239 864 2800 613 Sprint 7046 830 252 686 UUNET Technologies, Inc. 19262 725 2180 185 Verizon Global Networks 20115 724 627 378 Charter Communications 11492 721 89 15 Cable One 209 692 3660 540 Qwest 22773 678 1741 38 Cox Communications, Inc. 7011 655 218 414 Citizens Utilities 4355 607 305 87 EarthLink, Inc. 6461 607 228 85 AboveNet Communications, Inc. 6198 599 556 238 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4323 3192 2917 Time Warner Telecom 4134 1293 1054 CHINANET-BACKBONE 18566 951 943 Covad Communications 9583 941 926 Sify Limited 4755 951 889 Videsh Sanchar Nigam Ltd. Aut 705 1500 844 UUNET Technologies, Inc. 11492 721 706 Cable One 721 1008 698 DLA Systems Automation Center 9498 765 695 BHARTI BT INTERNET LTD. 22773 678 640 Cox Communications, Inc. 8151 782 550 UniNet S.A. de C.V. 6197 1020 542 BellSouth Network Solutions, 19262 725 540 Verizon Global Networks 7018 1495 537 AT&T WorldNet Services 6461 607 522 AboveNet Communications, Inc. 4355 607 520 EarthLink, Inc. 5668 542 519 CenturyTel Internet Holdings, 19916 563 509 OLM LLC 17488 519 502 Hathway IP Over Cable Interne 855 567 493 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 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 /14:374 /15:736 /16:8973 /17:3458 /18:5652 /19:12290 /20:13942 /21:12394 /22:15822 /23:17117 /24:114691 /25:456 /26:362 /27:297 /28:216 /29:194 /30:523 /31:0 /32:111
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 701 3760 5032 UUNET Technologies, Inc. 4323 1896 3192 Time Warner Telecom 705 947 1500 UUNET Technologies, Inc. 18566 934 951 Covad Communications 6197 800 1020 BellSouth Network Solutions, 7018 785 1495 AT&T WorldNet Services 9583 772 941 Sify Limited 11492 709 721 Cable One 2386 637 918 AT&T Data Communications Serv 7046 587 830 UUNET Technologies, Inc. 7011 563 655 Citizens Utilities 19916 557 563 OLM LLC 4766 534 723 Korea Telecom (KIX) 6461 533 607 AboveNet Communications, Inc. 2686 515 559 IBM 9498 447 765 BHARTI BT INTERNET LTD. 6198 442 599 BellSouth Network Solutions, 855 441 567 Canadian Research Network 5668 424 542 CenturyTel Internet Holdings, 15270 423 454 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global) ----------------------------------------------
2:1 4:10 8:50 12:1617 13:1 15:15 16:3 17:3 18:4 20:41 24:810 25:1 30:2 32:264 38:241 40:53 41:10 44:3 45:8 47:6 52:4 55:1 56:3 57:54 58:213 59:279 60:191 61:950 62:954 63:3405 64:3612 65:3677 66:3808 67:652 68:681 69:1590 70:394 71:87 72:867 74:63 75:1 80:765 81:667 82:686 83:406 84:414 85:585 86:397 87:460 88:119 89:381 91:1 121:13 122:3 123:1 124:343 125:576 128:166 129:188 130:119 131:318 132:35 133:8 134:160 135:49 136:178 137:86 138:214 139:134 140:490 141:137 142:397 143:184 144:244 145:40 146:317 147:145 148:330 149:191 150:114 151:97 152:74 153:117 154:6 155:212 156:180 157:141 158:167 159:173 160:93 161:80 162:245 163:165 164:282 165:232 166:182 167:244 168:599 169:125 170:354 171:14 190:97 192:5837 193:3410 194:2800 195:2165 196:895 198:4048 199:3367 200:4641 201:1047 202:6951 203:7199 204:4079 205:2146 206:2815 207:3658 208:3017 209:3930 210:2240 211:876 212:1350 213:1512 214:362 215:41 216:4386 217:1362 218:341 219:288 220:753 221:375 222:231
End of report
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