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Routing Table Report 00:00 GMT Wed 02 Aug, 2006
Analysis Summary ----------------
BGP routing table entries examined: 207827 Prefixes after maximum aggregation: 108453 Unique aggregates announced to Internet: 94679 Total ASes present in the Internet Routing Table: 22841 Origin-only ASes present in the Internet Routing Table: 19941 Origin ASes announcing only one prefix: 9495 Transit ASes present in the Internet Routing Table: 2900 Transit-only ASes present in the Internet Routing Table: 62 Average AS path length visible in the Internet Routing Table: 2.7 Max AS path length visible: 23 Max AS path prepend of ASN (24076) 20 Prefixes from unregistered ASNs in the Routing Table: 41 Unregistered ASNs in the Routing Table: 18 Special use prefixes present in the Routing Table: 7 Prefixes being announced from unallocated address space: 10 Number of addresses announced to Internet: 1577286141 Equivalent to 94 /8s, 3 /16s and 121 /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: 106926
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 43752 Total APNIC prefixes after maximum aggregation: 17610 Prefixes being announced from the APNIC address blocks: 41380 Unique aggregates announced from the APNIC address blocks: 18646 APNIC Region origin ASes present in the Internet Routing Table: 2671 APNIC Region origin ASes announcing only one prefix: 751 APNIC Region transit ASes present in the Internet Routing Table: 397 Average APNIC Region AS path length visible: 3.0 Max APNIC Region AS path length visible: 23 Number of APNIC addresses announced to Internet: 243949188 Equivalent to 14 /8s, 138 /16s and 94 /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: 109503 Total ARIN prefixes after maximum aggregation: 59950 Prefixes being announced from the ARIN address blocks: 81636 Unique aggregates announced from the ARIN address blocks: 27143 ARIN Region origin ASes present in the Internet Routing Table: 10870 ARIN Region origin ASes announcing only one prefix: 4089 ARIN Region transit ASes present in the Internet Routing Table: 985 Average ARIN Region AS path length visible: 2.4 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 298526753 Equivalent to 17 /8s, 203 /16s and 40 /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: 40129 Total RIPE prefixes after maximum aggregation: 26245 Prefixes being announced from the RIPE address blocks: 37504 Unique aggregates announced from the RIPE address blocks: 24202 RIPE Region origin ASes present in the Internet Routing Table: 8364 RIPE Region origin ASes announcing only one prefix: 4370 RIPE Region transit ASes present in the Internet Routing Table: 1339 Average RIPE Region AS path length visible: 2.9 Max RIPE Region AS path length visible: 17 Number of RIPE addresses announced to Internet: 261305312 Equivalent to 15 /8s, 147 /16s and 51 /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: 12046 Total LACNIC prefixes after maximum aggregation: 3729 Prefixes being announced from the LACNIC address blocks: 10149 Unique aggregates announced from the LACNIC address blocks: 5781 LACNIC Region origin ASes present in the Internet Routing Table: 714 LACNIC Region origin ASes announcing only one prefix: 241 LACNIC Region transit ASes present in the Internet Routing Table: 126 Average LACNIC Region AS path length visible: 3.0 Max LACNIC Region AS path length visible: 15 Number of LACNIC addresses announced to Internet: 31422464 Equivalent to 1 /8s, 223 /16s and 120 /24s Percentage of available LACNIC address space announced: 46.8
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: 2357 Total AfriNIC prefixes after maximum aggregation: 919 Prefixes being announced from the AfriNIC address blocks: 1587 Unique aggregates announced from the AfriNIC address blocks: 986 AfriNIC Region origin ASes present in the Internet Routing Table: 160 AfriNIC Region origin ASes announcing only one prefix: 44 AfriNIC Region transit ASes present in the Internet Routing Table: 24 Average AfriNIC Region AS path length visible: 2.8 Max AfriNIC Region AS path length visible: 10 Number of AfriNIC addresses announced to Internet: 4200192 Equivalent to 0 /8s, 64 /16s and 23 /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 7918 240 CHINANET-BACKBONE 4755 953 255 66 Videsh Sanchar Nigam Ltd. Aut 9583 927 109 15 Sify Limited 9498 763 211 70 BHARTI BT INTERNET LTD. 4766 723 4435 305 Korea Telecom (KIX) 1221 647 1779 478 Telstra Pty Ltd 7545 551 124 72 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 429 85 22 Reliance Infocom Ltd Internet 4812 415 740 61 China Telecom (Shanghai) 17849 412 30 123 Telecommunications Technology 17557 383 30 174 Pakistan Telecom 4802 377 81 166 Wantree Development 17974 375 129 14 PT TELEKOMUNIKASI INDONESIA 7474 357 211 229 SingTel Optus Pty Ltd 2907 340 1733 313 SINET Japan 9929 324 216 43 China Netcom Corp.
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 625 1948 442 UUNET - Commercial IP service 3215 401 1760 97 France Telecom Transpac 3301 316 1187 301 TeliaNet Sweden 3320 292 5013 238 Deutsche Telekom AG 8220 283 471 266 COLT Telecommunications 680 246 2041 243 DFN-IP service G-WiN 6746 240 90 218 Dynamic Network Technologies, 24863 237 42 11 LINKdotNET AS number 3246 232 462 222 Song Networks 5089 228 1641 44 NTL Group Limited 1257 224 742 168 SWIPnet Swedish IP Network 8708 213 277 201 Romania Data Systems S.A. 3269 203 2246 73 TELECOM ITALIA 30890 202 19 82 SC Kappa Invexim SRL 8551 193 182 28 Bezeq International 8866 188 37 15 Bulgarian Telecommunication C 5416 179 12 11 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 5030 6785 791 UUNET Technologies, Inc. 4323 3192 746 275 Time Warner Telecom 705 1501 559 657 UUNET Technologies, Inc. 7018 1489 6255 961 AT&T WorldNet Services 6197 1018 636 478 BellSouth Network Solutions, 721 1009 21926 313 DLA Systems Automation Center 18566 950 272 8 Covad Communications 174 933 5736 878 Cogent Communications 2386 914 559 704 AT&T Data Communications Serv 1239 866 2800 611 Sprint 7046 830 252 686 UUNET Technologies, Inc. 19262 728 2228 187 Verizon Global Networks 11492 719 89 15 Cable One 20115 717 623 383 Charter Communications 209 698 3663 546 Qwest 22773 678 1741 38 Cox Communications, Inc. 7011 655 218 414 Citizens Utilities 6461 611 228 83 AboveNet Communications, Inc. 4355 606 305 86 EarthLink, 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 1294 1054 CHINANET-BACKBONE 18566 950 942 Covad Communications 9583 927 912 Sify Limited 4755 953 887 Videsh Sanchar Nigam Ltd. Aut 705 1501 844 UUNET Technologies, Inc. 11492 719 704 Cable One 721 1009 696 DLA Systems Automation Center 9498 763 693 BHARTI BT INTERNET LTD. 22773 678 640 Cox Communications, Inc. 19262 728 541 Verizon Global Networks 6197 1018 540 BellSouth Network Solutions, 8151 758 540 UniNet S.A. de C.V. 7018 1489 528 AT&T WorldNet Services 6461 611 528 AboveNet Communications, Inc. 5668 545 522 CenturyTel Internet Holdings, 4355 606 520 EarthLink, Inc. 19916 563 509 OLM LLC 17488 520 502 Hathway IP Over Cable Interne 855 563 492 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 65014 PRIVATE 135.196.176.96/27 8190 VIATEL 65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu 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
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 /16:8962 /17:3459 /18:5642 /19:12291 /20:13921 /21:12377 /22:15786 /23:17121 /24:114616 /25:461 /26:365 /27:299 /28:218 /29:192 /30:521 /31:0 /32:111
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 701 3760 5030 UUNET Technologies, Inc. 4323 1896 3192 Time Warner Telecom 705 947 1501 UUNET Technologies, Inc. 18566 933 950 Covad Communications 6197 798 1018 BellSouth Network Solutions, 7018 787 1489 AT&T WorldNet Services 9583 758 927 Sify Limited 11492 707 719 Cable One 2386 633 914 AT&T Data Communications Serv 7046 587 830 UUNET Technologies, Inc. 7011 563 655 Citizens Utilities 19916 557 563 OLM LLC 6461 539 611 AboveNet Communications, Inc. 4766 534 723 Korea Telecom (KIX) 2686 514 559 IBM 9498 445 763 BHARTI BT INTERNET LTD. 6198 442 599 BellSouth Network Solutions, 855 441 563 Canadian Research Network 5668 427 545 CenturyTel Internet Holdings, 15270 422 453 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global) ----------------------------------------------
2:1 4:10 8:50 12:1611 13:1 15:15 16:3 17:3 18:4 20:41 24:811 25:1 30:2 32:264 38:241 40:53 41:9 44:3 45:17 47:6 52:4 55:1 56:3 57:54 58:220 59:273 60:178 61:951 62:944 63:3392 64:3607 65:3668 66:3807 67:647 68:681 69:1587 70:393 71:86 72:866 74:63 75:1 80:781 81:691 82:692 83:389 84:410 85:579 86:398 87:461 88:144 89:381 91:1 121:13 122:3 123:1 124:342 125:576 128:162 129:188 130:119 131:319 132:35 133:8 134:160 135:49 136:174 137:86 138:212 139:134 140:491 141:136 142:396 143:187 144:244 145:40 146:317 147:145 148:350 149:190 150:114 151:98 152:74 153:117 154:6 155:212 156:180 157:142 158:157 159:174 160:93 161:80 162:245 163:164 164:282 165:232 166:182 167:244 168:599 169:125 170:354 171:14 190:97 192:5835 193:3408 194:2795 195:2163 196:893 198:4041 199:3360 200:4642 201:1033 202:6960 203:7145 204:4056 205:2150 206:2815 207:3653 208:3022 209:3932 210:2244 211:873 212:1356 213:1516 214:360 215:41 216:4377 217:1408 218:341 219:288 220:751 221:366 222:231
End of report
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