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Routing Table Report 00:00 GMT Fri 04 Aug, 2006
Analysis Summary ----------------
BGP routing table entries examined: 208042 Prefixes after maximum aggregation: 108636 Unique aggregates announced to Internet: 94880 Total ASes present in the Internet Routing Table: 22857 Origin-only ASes present in the Internet Routing Table: 19880 Origin ASes announcing only one prefix: 9473 Transit ASes present in the Internet Routing Table: 2977 Transit-only ASes present in the Internet Routing Table: 73 Average AS path length visible in the Internet Routing Table: 3.8 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: 7 Prefixes being announced from unallocated address space: 11 Number of addresses announced to Internet: 1578020349 Equivalent to 94 /8s, 14 /16s and 173 /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: 107026
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 43859 Total APNIC prefixes after maximum aggregation: 17655 Prefixes being announced from the APNIC address blocks: 41458 Unique aggregates announced from the APNIC address blocks: 18567 APNIC Region origin ASes present in the Internet Routing Table: 2681 APNIC Region origin ASes announcing only one prefix: 754 APNIC Region transit ASes present in the Internet Routing Table: 405 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 24 Number of APNIC addresses announced to Internet: 244170116 Equivalent to 14 /8s, 141 /16s and 189 /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: 109593 Total ARIN prefixes after maximum aggregation: 60040 Prefixes being announced from the ARIN address blocks: 81757 Unique aggregates announced from the ARIN address blocks: 27240 ARIN Region origin ASes present in the Internet Routing Table: 10863 ARIN Region origin ASes announcing only one prefix: 4074 ARIN Region transit ASes present in the Internet Routing Table: 1005 Average ARIN Region AS path length visible: 3.2 Max ARIN Region AS path length visible: 19 Number of ARIN addresses announced to Internet: 298676513 Equivalent to 17 /8s, 205 /16s and 113 /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: 40163 Total RIPE prefixes after maximum aggregation: 26294 Prefixes being announced from the RIPE address blocks: 37482 Unique aggregates announced from the RIPE address blocks: 24254 RIPE Region origin ASes present in the Internet Routing Table: 8364 RIPE Region origin ASes announcing only one prefix: 4360 RIPE Region transit ASes present in the Internet Routing Table: 1382 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 261198560 Equivalent to 15 /8s, 145 /16s and 146 /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: 12106 Total LACNIC prefixes after maximum aggregation: 3728 Prefixes being announced from the LACNIC address blocks: 10189 Unique aggregates announced from the LACNIC address blocks: 5801 LACNIC Region origin ASes present in the Internet Routing Table: 715 LACNIC Region origin ASes announcing only one prefix: 239 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: 18 Number of LACNIC addresses announced to Internet: 31430912 Equivalent to 1 /8s, 223 /16s and 153 /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: 2281 Total AfriNIC prefixes after maximum aggregation: 919 Prefixes being announced from the AfriNIC address blocks: 1582 Unique aggregates announced from the AfriNIC address blocks: 974 AfriNIC Region origin ASes present in the Internet Routing Table: 161 AfriNIC Region origin ASes announcing only one prefix: 46 AfriNIC Region transit ASes present in the Internet Routing Table: 25 Average AfriNIC Region AS path length visible: 4.0 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 4204032 Equivalent to 0 /8s, 64 /16s and 38 /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 953 255 62 Videsh Sanchar Nigam Ltd. Aut 9583 943 109 15 Sify Limited 9498 765 211 70 BHARTI BT INTERNET LTD. 4766 724 4435 306 Korea Telecom (KIX) 1221 646 1779 476 Telstra Pty Ltd 7545 552 124 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 433 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 373 129 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 239 90 217 Dynamic Network Technologies, 24863 239 42 11 LINKdotNET AS number 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 203 2246 73 TELECOM ITALIA 8551 202 182 27 Bezeq International 30890 201 19 84 SC Kappa Invexim SRL 5416 180 12 7 BATELCO-BH 8866 180 37 15 Bulgarian Telecommunication C 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 5025 6785 793 UUNET Technologies, Inc. 4323 3194 746 277 Time Warner Telecom 7018 1509 6266 969 AT&T WorldNet Services 705 1504 559 658 UUNET Technologies, Inc. 6197 1020 636 478 BellSouth Network Solutions, 721 1009 21926 312 DLA Systems Automation Center 18566 951 272 8 Covad Communications 174 942 5769 887 Cogent Communications 2386 915 574 696 AT&T Data Communications Serv 1239 862 2800 610 Sprint 7046 830 252 686 UUNET Technologies, Inc. 19262 728 2228 187 Verizon Global Networks 20115 723 627 377 Charter Communications 11492 722 89 15 Cable One 209 692 3660 540 Qwest 22773 679 1741 38 Cox Communications, Inc. 7011 661 220 419 Citizens Utilities 4355 607 305 87 EarthLink, Inc. 6461 607 228 85 AboveNet Communications, Inc. 6198 600 556 238 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4323 3194 2917 Time Warner Telecom 4134 1293 1054 CHINANET-BACKBONE 18566 951 943 Covad Communications 9583 943 928 Sify Limited 4755 953 891 Videsh Sanchar Nigam Ltd. Aut 705 1504 846 UUNET Technologies, Inc. 11492 722 707 Cable One 721 1009 697 DLA Systems Automation Center 9498 765 695 BHARTI BT INTERNET LTD. 22773 679 641 Cox Communications, Inc. 8151 788 560 UniNet S.A. de C.V. 6197 1020 542 BellSouth Network Solutions, 19262 728 541 Verizon Global Networks 7018 1509 540 AT&T WorldNet Services 6461 607 522 AboveNet Communications, Inc. 4355 607 520 EarthLink, Inc. 5668 540 517 CenturyTel Internet Holdings, 19916 563 509 OLM LLC 17488 520 502 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 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 /14:374 /15:735 /16:8970 /17:3458 /18:5660 /19:12305 /20:13938 /21:12359 /22:15823 /23:17149 /24:114745 /25:458 /26:364 /27:301 /28:218 /29:191 /30:510 /31:0 /32:109
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 701 3753 5025 UUNET Technologies, Inc. 4323 1898 3194 Time Warner Telecom 705 951 1504 UUNET Technologies, Inc. 18566 934 951 Covad Communications 6197 800 1020 BellSouth Network Solutions, 7018 798 1509 AT&T WorldNet Services 9583 774 943 Sify Limited 11492 710 722 Cable One 2386 636 915 AT&T Data Communications Serv 7046 587 830 UUNET Technologies, Inc. 7011 568 661 Citizens Utilities 19916 557 563 OLM LLC 4766 535 724 Korea Telecom (KIX) 6461 533 607 AboveNet Communications, Inc. 2686 515 559 IBM 9498 447 765 BHARTI BT INTERNET LTD. 6198 443 600 BellSouth Network Solutions, 855 441 567 Canadian Research Network 5668 423 540 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 12:1613 13:1 15:15 16:3 17:3 18:4 20:41 24:811 25:1 30:2 32:264 38:241 40:53 41:10 44:3 45:9 47:6 52:4 55:1 56:3 57:54 58:213 59:278 60:191 61:951 62:952 63:3399 64:3607 65:3673 66:3806 67:650 68:681 69:1584 70:395 71:87 72:870 74:66 75:4 80:776 81:686 82:689 83:408 84:409 85:586 86:398 87:462 88:141 89:364 91:1 121:13 122:3 123:1 124:346 125:575 128:162 129:188 130:119 131:318 132:35 133:8 134:160 135:49 136:178 137:86 138:214 139:137 140:491 141:137 142:395 143:186 144:247 145:40 146:317 147:145 148:351 149:191 150:114 151:97 152:74 153:117 154:6 155:213 156:180 157:142 158:167 159:173 160:93 161:81 162:245 163:164 164:280 165:231 166:182 167:244 168:598 169:125 170:354 171:14 190:99 192:5826 193:3422 194:2804 195:2169 196:890 198:4040 199:3363 200:4645 201:1046 202:6948 203:7170 204:4088 205:2152 206:2818 207:3643 208:3014 209:3950 210:2247 211:880 212:1365 213:1513 214:363 215:41 216:4384 217:1361 218:343 219:281 220:752 221:377 222:235
End of report
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