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Routing Table Report 00:00 GMT Wed 16 Aug, 2006
Analysis Summary ----------------
BGP routing table entries examined: 209198 Prefixes after maximum aggregation: 108964 Unique aggregates announced to Internet: 95364 Total ASes present in the Internet Routing Table: 22963 Origin-only ASes present in the Internet Routing Table: 19888 Origin ASes announcing only one prefix: 9522 Transit ASes present in the Internet Routing Table: 3075 Transit-only ASes present in the Internet Routing Table: 83 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 31 Max AS path prepend of ASN (31258) 21 Prefixes from unregistered ASNs in the Routing Table: 47 Unregistered ASNs in the Routing Table: 17 Special use prefixes present in the Routing Table: 7 Prefixes being announced from unallocated address space: 10 Number of addresses announced to Internet: 1559507005 Equivalent to 92 /8s, 244 /16s and 48 /24s Percentage of available address space announced: 42.1 Percentage of allocated address space announced: 60.9 Percentage of available address space allocated: 69.1 Total number of prefixes smaller than registry allocations: 107930
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 44127 Total APNIC prefixes after maximum aggregation: 17621 Prefixes being announced from the APNIC address blocks: 41718 Unique aggregates announced from the APNIC address blocks: 18712 APNIC Region origin ASes present in the Internet Routing Table: 2686 APNIC Region origin ASes announcing only one prefix: 754 APNIC Region transit ASes present in the Internet Routing Table: 410 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 26 Number of APNIC addresses announced to Internet: 244528516 Equivalent to 14 /8s, 147 /16s and 53 /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: 109950 Total ARIN prefixes after maximum aggregation: 60227 Prefixes being announced from the ARIN address blocks: 81924 Unique aggregates announced from the ARIN address blocks: 27335 ARIN Region origin ASes present in the Internet Routing Table: 10911 ARIN Region origin ASes announcing only one prefix: 4096 ARIN Region transit ASes present in the Internet Routing Table: 1051 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 20 Number of ARIN addresses announced to Internet: 295161185 Equivalent to 17 /8s, 151 /16s and 205 /24s Percentage of available ARIN address space announced: 76.5
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: 40510 Total RIPE prefixes after maximum aggregation: 26431 Prefixes being announced from the RIPE address blocks: 37819 Unique aggregates announced from the RIPE address blocks: 24320 RIPE Region origin ASes present in the Internet Routing Table: 8410 RIPE Region origin ASes announcing only one prefix: 4390 RIPE Region transit ASes present in the Internet Routing Table: 1415 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 31 Number of RIPE addresses announced to Internet: 261779936 Equivalent to 15 /8s, 154 /16s and 113 /24s Percentage of available RIPE address space announced: 82.1
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: 12239 Total LACNIC prefixes after maximum aggregation: 3752 Prefixes being announced from the LACNIC address blocks: 10312 Unique aggregates announced from the LACNIC address blocks: 5941 LACNIC Region origin ASes present in the Internet Routing Table: 711 LACNIC Region origin ASes announcing only one prefix: 235 LACNIC Region transit ASes present in the Internet Routing Table: 135 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 25 Number of LACNIC addresses announced to Internet: 32132608 Equivalent to 1 /8s, 234 /16s and 78 /24s Percentage of available LACNIC address space announced: 47.9
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: 2326 Total AfriNIC prefixes after maximum aggregation: 933 Prefixes being announced from the AfriNIC address blocks: 1615 Unique aggregates announced from the AfriNIC address blocks: 983 AfriNIC Region origin ASes present in the Internet Routing Table: 162 AfriNIC Region origin ASes announcing only one prefix: 47 AfriNIC Region transit ASes present in the Internet Routing Table: 25 Average AfriNIC Region AS path length visible: 4.4 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 4207360 Equivalent to 0 /8s, 64 /16s and 51 /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 1288 7819 236 CHINANET-BACKBONE 4755 966 255 66 Videsh Sanchar Nigam Ltd. Aut 9583 947 109 15 Sify Limited 9498 785 211 70 BHARTI BT INTERNET LTD. 4766 726 4435 306 Korea Telecom (KIX) 1221 651 1779 481 Telstra Pty Ltd 4538 604 2717 31 China Education and Research 7545 546 124 73 TPG Internet Pty Ltd 17488 522 32 18 Hathway IP Over Cable Interne 17676 491 7109 111 Softbank BB Corp. 9443 450 111 83 Primus Telecommunications 18101 437 85 22 Reliance Infocom Ltd Internet 4812 413 739 59 China Telecom (Shanghai) 17849 412 30 123 Telecommunications Technology 17974 390 129 12 PT TELEKOMUNIKASI INDONESIA 7474 358 211 230 SingTel Optus Pty Ltd 17557 358 29 169 Pakistan Telecom 4802 356 84 149 Wantree Development 2907 339 1733 312 SINET Japan 4837 318 3523 136 chinanet IDC center beijing n
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 565 1947 441 UUNET - Commercial IP service 3215 497 1760 97 France Telecom Transpac 3301 315 1186 300 TeliaNet Sweden 3320 296 5013 239 Deutsche Telekom AG 8220 282 472 266 COLT Telecommunications 24863 253 42 10 LINKdotNET AS number 1257 249 744 168 SWIPnet Swedish IP Network 680 247 2041 244 DFN-IP service G-WiN 6746 244 91 222 Dynamic Network Technologies, 3246 233 462 223 Song Networks 5089 231 1658 46 NTL Group Limited 8708 216 278 203 Romania Data Systems S.A. 3269 202 2246 73 TELECOM ITALIA 8551 202 182 27 Bezeq International 30890 201 19 84 SC Kappa Invexim SRL 6830 195 879 43 UPC Distribution Services 8866 183 37 15 Bulgarian Telecommunication C 5416 181 12 7 BATELCO-BH 3300 176 171 98 AUCS Communications Services 786 172 1779 172 The JANET IP Service
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 701 4975 6781 782 UUNET Technologies, Inc. 4323 3208 747 282 Time Warner Telecom 705 1494 558 653 UUNET Technologies, Inc. 7018 1473 6250 952 AT&T WorldNet Services 174 1137 5771 895 Cogent Communications 6197 1017 636 478 BellSouth Network Solutions, 721 1003 21942 310 DLA Systems Automation Center 18566 954 272 8 Covad Communications 2386 943 559 711 AT&T Data Communications Serv 1239 843 2787 595 Sprint 7046 821 251 680 UUNET Technologies, Inc. 20115 729 652 379 Charter Communications 19262 728 2218 183 Verizon Global Networks 11492 723 90 16 Cable One 22773 691 1744 46 Cox Communications, Inc. 209 684 3657 538 Qwest 7011 678 226 433 Citizens Utilities 6461 604 228 83 AboveNet Communications, Inc. 852 602 1068 384 Telus Advanced Communications 6198 597 554 237 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4323 3208 2926 Time Warner Telecom 4134 1288 1052 CHINANET-BACKBONE 18566 954 946 Covad Communications 9583 947 932 Sify Limited 4755 966 900 Videsh Sanchar Nigam Ltd. Aut 705 1494 841 UUNET Technologies, Inc. 9498 785 715 BHARTI BT INTERNET LTD. 11492 723 707 Cable One 721 1003 693 DLA Systems Automation Center 22773 691 645 Cox Communications, Inc. 8151 802 577 UniNet S.A. de C.V. 4538 604 573 China Education and Research 19262 728 545 Verizon Global Networks 6197 1017 539 BellSouth Network Solutions, 5668 542 523 CenturyTel Internet Holdings, 7018 1473 521 AT&T WorldNet Services 6461 604 521 AboveNet Communications, Inc. 19916 563 509 OLM LLC 17488 522 504 Hathway IP Over Cable Interne 855 559 485 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 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 65101 PRIVATE 84.16.28.0/24 12956 Telefonica Data Auto 65101 PRIVATE 84.16.29.0/24 12956 Telefonica Data Auto 65101 PRIVATE 84.16.30.0/24 12956 Telefonica Data Auto 65515 PRIVATE 87.251.34.0/24 12859 Business Internet Tr 65515 PRIVATE 87.251.36.0/24 12859 Business Internet Tr 65350 PRIVATE 124.236.0.0/19 17672 asn for Hebei Provin 65350 PRIVATE 124.236.240.0/20 17672 asn for Hebei Provin 65350 PRIVATE 124.239.192.0/24 17672 asn for Hebei Provin 65014 PRIVATE 135.196.176.96/27 8190 VIATEL 65106 PRIVATE 195.219.161.0/27 6453 Teleglobe Inc. 65014 PRIVATE 203.117.240.0/21 4657 Starhub Internet, Si 24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com 65000 PRIVATE 211.72.199.0/24 3462 Data Communication B 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 192.168.192.0/24 16062 Talks Ltd.
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 /8:18 /9:9 /10:10 /11:28 /12:96 /13:212 /14:378 /15:740 /16:8983 /17:3488 /18:5702 /19:12370 /20:14065 /21:12489 /22:15945 /23:17329 /24:115015 /25:486 /26:456 /27:303 /28:227 /29:199 /30:539 /31:0 /32:111
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 701 3712 4975 UUNET Technologies, Inc. 4323 1903 3208 Time Warner Telecom 705 943 1494 UUNET Technologies, Inc. 18566 937 954 Covad Communications 6197 798 1017 BellSouth Network Solutions, 9583 778 947 Sify Limited 7018 772 1473 AT&T WorldNet Services 11492 711 723 Cable One 2386 663 943 AT&T Data Communications Serv 7046 583 821 UUNET Technologies, Inc. 7011 582 678 Citizens Utilities 19916 557 563 OLM LLC 4766 537 726 Korea Telecom (KIX) 6461 531 604 AboveNet Communications, Inc. 2686 516 561 IBM 9498 466 785 BHARTI BT INTERNET LTD. 6198 443 597 BellSouth Network Solutions, 855 433 559 Canadian Research Network 15270 427 458 PaeTec.net -a division of Pae 5668 423 542 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global) ----------------------------------------------
2:1 4:9 8:50 12:1630 13:1 15:15 16:3 17:3 18:4 20:41 24:814 25:1 30:2 32:269 38:266 40:53 41:13 44:3 45:12 47:6 52:4 55:1 56:3 57:54 58:216 59:280 60:190 61:951 62:956 63:3393 64:3576 65:3655 66:3844 67:661 68:679 69:1588 70:393 71:87 72:883 74:73 75:5 80:819 81:716 82:705 83:408 84:411 85:595 86:398 87:457 88:157 89:392 91:1 121:14 122:3 123:1 124:342 125:601 128:163 129:199 130:122 131:314 132:35 133:8 134:165 135:48 136:178 137:86 138:214 139:135 140:528 141:135 142:389 143:189 144:239 145:40 146:317 147:145 148:351 149:192 150:114 151:97 152:74 153:118 154:6 155:215 156:179 157:172 158:167 159:173 160:94 161:83 162:218 163:164 164:278 165:226 166:182 167:244 168:602 169:125 170:353 171:14 190:158 192:5837 193:3461 194:2780 195:2178 196:898 198:4034 199:3377 200:4632 201:1056 202:6937 203:7138 204:4077 205:2142 206:2821 207:3587 208:3038 209:3884 210:2261 211:882 212:1343 213:1515 214:370 215:41 216:4411 217:1360 218:349 219:293 220:730 221:380 222:247
End of report
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