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Routing Table Report 00:00 GMT Fri 30 Jun, 2006
Analysis Summary ----------------
BGP routing table entries examined: 204255 Prefixes after maximum aggregation: 107197 Unique aggregates announced to Internet: 92863 Total ASes present in the Internet Routing Table: 22616 Origin-only ASes present in the Internet Routing Table: 19737 Origin ASes announcing only one prefix: 9407 Transit ASes present in the Internet Routing Table: 2879 Transit-only ASes present in the Internet Routing Table: 65 Average AS path length visible in the Internet Routing Table: 2.7 Max AS path length visible: 19 Max AS path prepend of ASN (32609) 16 Prefixes from unregistered ASNs in the Routing Table: 22 Unregistered ASNs in the Routing Table: 13 Special use prefixes present in the Routing Table: 5 Prefixes being announced from unallocated address space: 10 Number of addresses announced to Internet: 1539125429 Equivalent to 91 /8s, 189 /16s and 48 /24s Percentage of available address space announced: 41.5 Percentage of allocated address space announced: 60.1 Percentage of available address space allocated: 69.1 Total number of prefixes smaller than registry allocations: 104524
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 42323 Total APNIC prefixes after maximum aggregation: 17070 Prefixes being announced from the APNIC address blocks: 39928 Unique aggregates announced from the APNIC address blocks: 17604 APNIC Region origin ASes present in the Internet Routing Table: 2628 APNIC Region origin ASes announcing only one prefix: 743 APNIC Region transit ASes present in the Internet Routing Table: 396 Average APNIC Region AS path length visible: 3.0 Max APNIC Region AS path length visible: 19 Number of APNIC addresses announced to Internet: 235187108 Equivalent to 14 /8s, 4 /16s and 171 /24s Percentage of available APNIC address space announced: 73.5
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: 108115 Total ARIN prefixes after maximum aggregation: 59569 Prefixes being announced from the ARIN address blocks: 80456 Unique aggregates announced from the ARIN address blocks: 26999 ARIN Region origin ASes present in the Internet Routing Table: 10812 ARIN Region origin ASes announcing only one prefix: 4077 ARIN Region transit ASes present in the Internet Routing Table: 976 Average ARIN Region AS path length visible: 2.4 Max ARIN Region AS path length visible: 18 Number of ARIN addresses announced to Internet: 294960417 Equivalent to 17 /8s, 148 /16s and 189 /24s Percentage of available ARIN address space announced: 76.4
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: 39768 Total RIPE prefixes after maximum aggregation: 25909 Prefixes being announced from the RIPE address blocks: 37161 Unique aggregates announced from the RIPE address blocks: 23888 RIPE Region origin ASes present in the Internet Routing Table: 8251 RIPE Region origin ASes announcing only one prefix: 4306 RIPE Region transit ASes present in the Internet Routing Table: 1325 Average RIPE Region AS path length visible: 2.9 Max RIPE Region AS path length visible: 17 Number of RIPE addresses announced to Internet: 255133056 Equivalent to 15 /8s, 53 /16s and 5 /24s Percentage of available RIPE address space announced: 80.0
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: 11689 Total LACNIC prefixes after maximum aggregation: 3738 Prefixes being announced from the LACNIC address blocks: 9818 Unique aggregates announced from the LACNIC address blocks: 5586 LACNIC Region origin ASes present in the Internet Routing Table: 703 LACNIC Region origin ASes announcing only one prefix: 236 LACNIC Region transit ASes present in the Internet Routing Table: 128 Average LACNIC Region AS path length visible: 3.0 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 28056320 Equivalent to 1 /8s, 172 /16s and 27 /24s Percentage of available LACNIC address space announced: 41.8
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: 2339 Total AfriNIC prefixes after maximum aggregation: 911 Prefixes being announced from the AfriNIC address blocks: 1572 Unique aggregates announced from the AfriNIC address blocks: 947 AfriNIC Region origin ASes present in the Internet Routing Table: 157 AfriNIC Region origin ASes announcing only one prefix: 45 AfriNIC Region transit ASes present in the Internet Routing Table: 23 Average AfriNIC Region AS path length visible: 2.8 Max AfriNIC Region AS path length visible: 10 Number of AfriNIC addresses announced to Internet: 4145920 Equivalent to 0 /8s, 63 /16s and 67 /24s Percentage of available AfriNIC address space announced: 12.4
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 1246 7278 224 CHINANET-BACKBONE 4755 947 258 72 Videsh Sanchar Nigam Ltd. Aut 9583 918 109 15 Sify Limited 4766 714 4435 309 Korea Telecom (KIX) 9498 682 211 68 BHARTI BT INTERNET LTD. 1221 650 1668 481 Telstra Pty Ltd 7545 547 124 71 TPG Internet Pty Ltd 17488 519 32 17 Hathway IP Over Cable Interne 4538 492 2717 31 China Education and Research 17676 490 7093 110 Softbank BB Corp. 9443 452 111 83 Primus Telecommunications 18101 421 85 24 Reliance Infocom Ltd Internet 17974 385 129 14 PT TELEKOMUNIKASI INDONESIA 4802 382 81 169 Wantree Development 17557 381 30 170 Pakistan Telecom 9929 377 254 65 China Netcom Corp. 7474 361 211 228 SingTel Optus Pty Ltd 2907 341 1750 315 SINET Japan 4804 304 295 57 Microplex PTY LTD 10139 283 19 5 Meridian Telekoms
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 673 1948 445 UUNET - Commercial IP service 3215 405 1720 96 France Telecom Transpac 3301 312 1327 297 TeliaNet Sweden 3352 305 1643 30 Ibernet, Internet Access Netw 3320 282 3988 237 Deutsche Telekom AG 8220 281 471 266 COLT Telecommunications 680 246 2041 243 DFN-IP service G-WiN 6746 239 90 214 Dynamic Network Technologies, 5089 234 1643 43 NTL Group Limited 3246 231 463 221 Song Networks 8708 218 276 204 Romania Data Systems S.A. 24863 215 42 10 LINKdotNET AS number 8551 209 198 29 Bezeq International 3269 202 2184 73 TELECOM ITALIA 30890 199 18 76 SC Kappa Invexim SRL 1257 195 741 167 SWIPnet Swedish IP Network 8866 187 37 15 Bulgarian Telecommunication C 6830 176 813 37 UPC Distribution Services 786 170 1778 170 The JANET IP Service 3300 169 171 96 AUCS Communications Services
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 701 5045 6769 782 UUNET Technologies, Inc. 4323 3162 744 266 Time Warner Telecom 705 1556 574 683 UUNET Technologies, Inc. 7018 1494 6272 952 AT&T WorldNet Services 721 1021 21998 314 DLA Systems Automation Center 6197 1017 636 478 BellSouth Network Solutions, 174 966 5771 897 Cogent Communications 2386 920 561 714 AT&T Data Communications Serv 18566 876 272 8 Covad Communications 1239 848 2799 604 Sprint 7046 844 253 701 UUNET Technologies, Inc. 19262 719 2168 188 Verizon Global Networks 20115 713 619 381 Charter Communications 209 697 3683 550 Qwest 22773 667 1741 37 Cox Communications, Inc. 7011 646 217 410 Citizens Utilities 11492 642 89 10 Cable One 6461 611 228 86 AboveNet Communications, Inc. 6198 601 568 237 BellSouth Network Solutions, 852 597 1084 382 Telus Advanced Communications
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4323 3162 2896 Time Warner Telecom 4134 1246 1022 CHINANET-BACKBONE 9583 918 903 Sify Limited 4755 947 875 Videsh Sanchar Nigam Ltd. Aut 705 1556 873 UUNET Technologies, Inc. 18566 876 868 Covad Communications 721 1021 707 DLA Systems Automation Center 11492 642 632 Cable One 22773 667 630 Cox Communications, Inc. 9498 682 614 BHARTI BT INTERNET LTD. 7018 1494 542 AT&T WorldNet Services 6197 1017 539 BellSouth Network Solutions, 19262 719 531 Verizon Global Networks 6461 611 525 AboveNet Communications, Inc. 19916 563 509 OLM LLC 5668 529 506 CenturyTel Internet Holdings, 17488 519 502 Hathway IP Over Cable Interne 855 567 498 Canadian Research Network 8151 703 487 UniNet S.A. de C.V. 7545 547 476 TPG Internet Pty Ltd
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 65500 PRIVATE 80.68.8.0/24 20806 JSCITT Autonomous Sy 64500 RESERVED 81.17.39.128/27 24587 AS for Internet Onli 65007 PRIVATE 84.204.244.0/24 20632 PETERSTAR Autonomous 65007 PRIVATE 84.204.245.0/24 20632 PETERSTAR Autonomous 65007 PRIVATE 84.204.246.0/24 20632 PETERSTAR Autonomous 65007 PRIVATE 84.204.247.0/24 20632 PETERSTAR Autonomous 65007 PRIVATE 84.204.248.0/24 20632 PETERSTAR Autonomous 65007 PRIVATE 84.204.249.0/24 20632 PETERSTAR Autonomous 65535 PRIVATE 200.32.160.0/21 6429 AT&T Chile Internet 65535 PRIVATE 200.32.168.0/23 6429 AT&T Chile Internet 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, 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
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 192.168.83.0/24 292 Energy Sciences Network
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 183.206.196.0/24 2188 FR-RENATER-ASTER 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 /10:10 /11:28 /12:93 /13:207 /14:364 /15:719 /16:8883 /17:3346 /18:5533 /19:12077 /20:13737 /21:12234 /22:15552 /23:16770 /24:112551 /25:467 /26:356 /27:281 /28:213 /29:215 /30:492 /31:0 /32:99
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 701 3788 5045 UUNET Technologies, Inc. 4323 1881 3162 Time Warner Telecom 705 995 1556 UUNET Technologies, Inc. 18566 861 876 Covad Communications 6197 797 1017 BellSouth Network Solutions, 7018 794 1494 AT&T WorldNet Services 9583 748 918 Sify Limited 2386 636 920 AT&T Data Communications Serv 11492 630 642 Cable One 7046 598 844 UUNET Technologies, Inc. 19916 557 563 OLM LLC 7011 555 646 Citizens Utilities 6461 536 611 AboveNet Communications, Inc. 4766 525 714 Korea Telecom (KIX) 702 458 673 UUNET - Commercial IP service 2686 448 493 IBM 855 446 567 Canadian Research Network 6198 443 601 BellSouth Network Solutions, 5668 412 529 CenturyTel Internet Holdings, 15270 409 440 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global) ----------------------------------------------
2:1 4:9 8:42 12:1627 13:1 15:16 16:3 17:3 18:4 20:41 24:773 25:1 30:2 32:233 38:232 40:54 41:2 43:16 44:3 47:6 52:4 55:1 56:3 57:45 58:192 59:271 60:186 61:865 62:941 63:3429 64:3516 65:3673 66:3733 67:638 68:679 69:1545 70:388 71:83 72:798 74:50 75:1 80:781 81:657 82:688 83:401 84:393 85:572 86:391 87:381 88:112 89:309 121:2 122:2 123:1 124:181 125:525 128:155 129:189 130:120 131:313 132:35 133:9 134:160 135:48 136:178 137:83 138:206 139:138 140:483 141:136 142:406 143:168 144:224 145:39 146:320 147:142 148:341 149:194 150:114 151:94 152:72 153:106 154:6 155:206 156:183 157:148 158:167 159:171 160:91 161:80 162:245 163:158 164:228 165:214 166:172 167:243 168:609 169:128 170:352 171:14 183:1 190:80 192:5828 193:3372 194:2756 195:2095 196:896 198:4091 199:3306 200:4509 201:1002 202:6886 203:7099 204:4078 205:2178 206:2791 207:3561 208:2972 209:3802 210:2108 211:752 212:1394 213:1588 214:344 215:41 216:4354 217:1388 218:310 219:277 220:734 221:366 222:198
End of report
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