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Routing Table Report 00:00 GMT Mon 17 Jul, 2006
Analysis Summary ----------------
BGP routing table entries examined: 205573 Prefixes after maximum aggregation: 107697 Unique aggregates announced to Internet: 94146 Total ASes present in the Internet Routing Table: 22771 Origin-only ASes present in the Internet Routing Table: 19725 Origin ASes announcing only one prefix: 9465 Transit ASes present in the Internet Routing Table: 3046 Transit-only ASes present in the Internet Routing Table: 79 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 28 Max AS path prepend of ASN (34527) 16 Prefixes from unregistered ASNs in the Routing Table: 20 Unregistered ASNs in the Routing Table: 14 Special use prefixes present in the Routing Table: 6 Prefixes being announced from unallocated address space: 10 Number of addresses announced to Internet: 1548664533 Equivalent to 92 /8s, 78 /16s and 190 /24s Percentage of available address space announced: 41.8 Percentage of allocated address space announced: 60.4 Percentage of available address space allocated: 69.1 Total number of prefixes smaller than registry allocations: 105439
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 42631 Total APNIC prefixes after maximum aggregation: 17190 Prefixes being announced from the APNIC address blocks: 40244 Unique aggregates announced from the APNIC address blocks: 18446 APNIC Region origin ASes present in the Internet Routing Table: 2637 APNIC Region origin ASes announcing only one prefix: 743 APNIC Region transit ASes present in the Internet Routing Table: 405 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 20 Number of APNIC addresses announced to Internet: 235652292 Equivalent to 14 /8s, 11 /16s and 196 /24s Percentage of available APNIC address space announced: 73.7
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: 108704 Total ARIN prefixes after maximum aggregation: 59729 Prefixes being announced from the ARIN address blocks: 80934 Unique aggregates announced from the ARIN address blocks: 27035 ARIN Region origin ASes present in the Internet Routing Table: 10878 ARIN Region origin ASes announcing only one prefix: 4096 ARIN Region transit ASes present in the Internet Routing Table: 1045 Average ARIN Region AS path length visible: 3.1 Max ARIN Region AS path length visible: 20 Number of ARIN addresses announced to Internet: 296055841 Equivalent to 17 /8s, 165 /16s and 116 /24s Percentage of available ARIN address space announced: 76.7
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: 39849 Total RIPE prefixes after maximum aggregation: 26083 Prefixes being announced from the RIPE address blocks: 37253 Unique aggregates announced from the RIPE address blocks: 24094 RIPE Region origin ASes present in the Internet Routing Table: 8309 RIPE Region origin ASes announcing only one prefix: 4343 RIPE Region transit ASes present in the Internet Routing Table: 1391 Average RIPE Region AS path length visible: 3.8 Max RIPE Region AS path length visible: 28 Number of RIPE addresses announced to Internet: 260247424 Equivalent to 15 /8s, 131 /16s and 15 /24s Percentage of available RIPE address space announced: 81.6
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: 11993 Total LACNIC prefixes after maximum aggregation: 3779 Prefixes being announced from the LACNIC address blocks: 10033 Unique aggregates announced from the LACNIC address blocks: 5684 LACNIC Region origin ASes present in the Internet Routing Table: 707 LACNIC Region origin ASes announcing only one prefix: 238 LACNIC Region transit ASes present in the Internet Routing Table: 141 Average LACNIC Region AS path length visible: 4.9 Max LACNIC Region AS path length visible: 25 Number of LACNIC addresses announced to Internet: 31135488 Equivalent to 1 /8s, 219 /16s and 23 /24s Percentage of available LACNIC address space announced: 46.4
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: 2377 Total AfriNIC prefixes after maximum aggregation: 916 Prefixes being announced from the AfriNIC address blocks: 1577 Unique aggregates announced from the AfriNIC address blocks: 939 AfriNIC Region origin ASes present in the Internet Routing Table: 161 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: 3.5 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 4183552 Equivalent to 0 /8s, 63 /16s and 214 /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 1176 6669 225 CHINANET-BACKBONE 4755 944 255 67 Videsh Sanchar Nigam Ltd. Aut 9583 914 109 15 Sify Limited 9498 769 211 71 BHARTI BT INTERNET LTD. 4766 715 4435 309 Korea Telecom (KIX) 1221 645 1779 477 Telstra Pty Ltd 7545 551 124 74 TPG Internet Pty Ltd 17488 519 32 17 Hathway IP Over Cable Interne 4538 511 2715 30 China Education and Research 17676 490 7093 110 Softbank BB Corp. 9443 452 111 83 Primus Telecommunications 18101 427 85 23 Reliance Infocom Ltd Internet 17974 405 129 14 PT TELEKOMUNIKASI INDONESIA 17849 398 28 124 Telecommunications Technology 9929 397 268 61 China Netcom Corp. 17557 383 30 172 Pakistan Telecom 4802 379 81 168 Wantree Development 7474 357 211 230 SingTel Optus Pty Ltd 2907 335 1733 308 SINET Japan 4804 310 295 58 Microplex PTY LTD
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 642 1932 442 UUNET - Commercial IP service 3215 404 1760 97 France Telecom Transpac 3301 316 1187 301 TeliaNet Sweden 3352 304 1637 32 Ibernet, Internet Access Netw 3320 284 5012 233 Deutsche Telekom AG 8220 284 471 267 COLT Telecommunications 680 246 2041 243 DFN-IP service G-WiN 6746 233 89 210 Dynamic Network Technologies, 3246 232 463 222 Song Networks 5089 230 1657 44 NTL Group Limited 1257 220 741 164 SWIPnet Swedish IP Network 24863 218 42 10 LINKdotNET AS number 8708 212 275 201 Romania Data Systems S.A. 8551 209 198 29 Bezeq International 30890 207 19 81 SC Kappa Invexim SRL 3269 201 2182 72 TELECOM ITALIA 8866 188 37 15 Bulgarian Telecommunication C 6830 176 813 37 UPC Distribution Services 3300 172 171 98 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 5022 6753 777 UUNET Technologies, Inc. 4323 3180 746 274 Time Warner Telecom 705 1530 561 672 UUNET Technologies, Inc. 7018 1469 6206 938 AT&T WorldNet Services 6197 1015 635 479 BellSouth Network Solutions, 721 1013 21918 308 DLA Systems Automation Center 18566 947 272 8 Covad Communications 174 933 5688 879 Cogent Communications 2386 919 558 708 AT&T Data Communications Serv 1239 853 2786 604 Sprint 7046 834 252 690 UUNET Technologies, Inc. 19262 720 2142 185 Verizon Global Networks 20115 716 622 382 Charter Communications 209 692 3647 545 Qwest 22773 674 1741 40 Cox Communications, Inc. 11492 657 89 11 Cable One 7011 648 218 412 Citizens Utilities 6461 612 228 83 AboveNet Communications, Inc. 6198 599 556 236 BellSouth Network Solutions, 852 594 1068 378 Telus Advanced Communications
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4323 3180 2906 Time Warner Telecom 4134 1176 951 CHINANET-BACKBONE 18566 947 939 Covad Communications 9583 914 899 Sify Limited 4755 944 877 Videsh Sanchar Nigam Ltd. Aut 705 1530 858 UUNET Technologies, Inc. 721 1013 705 DLA Systems Automation Center 9498 769 698 BHARTI BT INTERNET LTD. 11492 657 646 Cable One 22773 674 634 Cox Communications, Inc. 6197 1015 536 BellSouth Network Solutions, 19262 720 535 Verizon Global Networks 7018 1469 531 AT&T WorldNet Services 6461 612 529 AboveNet Communications, Inc. 5668 533 510 CenturyTel Internet Holdings, 19916 563 509 OLM LLC 17488 519 502 Hathway IP Over Cable Interne 855 568 499 Canadian Research Network 4538 511 481 China Education and Research 7545 551 477 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 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 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, 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
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 198.18.1.0/24 3301 TeliaNet Sweden
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 /8:18 /9:9 /10:11 /11:28 /12:93 /13:205 /14:366 /15:726 /16:8911 /17:3353 /18:5565 /19:12135 /20:13844 /21:12264 /22:15622 /23:16945 /24:113317 /25:447 /26:364 /27:283 /28:208 /29:228 /30:516 /31:0 /32:115
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 701 3775 5022 UUNET Technologies, Inc. 4323 1886 3180 Time Warner Telecom 705 973 1530 UUNET Technologies, Inc. 18566 930 947 Covad Communications 6197 795 1015 BellSouth Network Solutions, 7018 778 1469 AT&T WorldNet Services 9583 744 914 Sify Limited 11492 645 657 Cable One 2386 635 919 AT&T Data Communications Serv 7046 589 834 UUNET Technologies, Inc. 19916 557 563 OLM LLC 7011 556 648 Citizens Utilities 6461 540 612 AboveNet Communications, Inc. 4766 526 715 Korea Telecom (KIX) 2686 513 558 IBM 855 447 568 Canadian Research Network 6198 443 599 BellSouth Network Solutions, 9498 431 769 BHARTI BT INTERNET LTD. 702 429 642 UUNET - Commercial IP service 5668 416 533 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global) ----------------------------------------------
2:1 4:9 8:43 11:1 12:1629 13:1 15:15 16:3 17:3 18:4 20:41 24:783 25:1 30:2 32:264 38:234 40:54 41:7 44:3 47:6 52:4 55:1 56:3 57:48 58:201 59:279 60:194 61:873 62:942 63:3417 64:3592 65:3663 66:3752 67:641 68:678 69:1570 70:390 71:86 72:821 74:56 75:1 80:788 81:678 82:685 83:396 84:397 85:580 86:409 87:410 88:117 89:338 91:1 121:3 122:3 123:1 124:279 125:555 128:166 129:183 130:120 131:313 132:35 133:9 134:159 135:49 136:177 137:84 138:206 139:139 140:490 141:135 142:406 143:169 144:230 145:40 146:317 147:142 148:341 149:194 150:114 151:96 152:73 153:108 154:6 155:205 156:187 157:145 158:166 159:173 160:93 161:80 162:246 163:160 164:287 165:229 166:174 167:243 168:614 169:125 170:353 171:14 183:1 190:88 192:5812 193:3363 194:2760 195:2123 196:882 198:4096 199:3359 200:4629 201:971 202:6872 203:7133 204:4073 205:2178 206:2793 207:3564 208:3006 209:3811 210:2134 211:757 212:1362 213:1582 214:366 215:41 216:4365 217:1394 218:314 219:252 220:735 221:351 222:199
End of report
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