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Routing Table Report 00:00 GMT Fri 16 Jun, 2006
Analysis Summary ----------------
BGP routing table entries examined: 202479 Prefixes after maximum aggregation: 106623 Unique aggregates announced to Internet: 93337 Total ASes present in the Internet Routing Table: 22566 Origin-only ASes present in the Internet Routing Table: 19557 Origin ASes announcing only one prefix: 9385 Transit ASes present in the Internet Routing Table: 3009 Transit-only ASes present in the Internet Routing Table: 80 Average AS path length visible in the Internet Routing Table: 3.8 Max AS path length visible: 27 Max AS path prepend of ASN (34204) 23 Prefixes from unregistered ASNs in the Routing Table: 42 Unregistered ASNs in the Routing Table: 23 Special use prefixes present in the Routing Table: 5 Prefixes being announced from unallocated address space: 60 Number of addresses announced to Internet: 2005694871 Equivalent to 119 /8s, 140 /16s and 121 /24s Percentage of available address space announced: 54.1 Percentage of allocated address space announced: 78.3 Percentage of available address space allocated: 69.1 Total number of prefixes smaller than registry allocations: 103951
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 40354 Total APNIC prefixes after maximum aggregation: 16793 Prefixes being announced from the APNIC address blocks: 37989 Unique aggregates announced from the APNIC address blocks: 18473 APNIC Region origin ASes present in the Internet Routing Table: 2607 APNIC Region origin ASes announcing only one prefix: 747 APNIC Region transit ASes present in the Internet Routing Table: 403 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 19 Number of APNIC addresses announced to Internet: 285561029 Equivalent to 17 /8s, 5 /16s and 80 /24s Percentage of available APNIC address space announced: 89.3
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: 108790 Total ARIN prefixes after maximum aggregation: 59480 Prefixes being announced from the ARIN address blocks: 80966 Unique aggregates announced from the ARIN address blocks: 26715 ARIN Region origin ASes present in the Internet Routing Table: 10831 ARIN Region origin ASes announcing only one prefix: 4080 ARIN Region transit ASes present in the Internet Routing Table: 1039 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 294168865 Equivalent to 17 /8s, 136 /16s and 169 /24s Percentage of available ARIN address space announced: 76.2
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: 39458 Total RIPE prefixes after maximum aggregation: 25715 Prefixes being announced from the RIPE address blocks: 36854 Unique aggregates announced from the RIPE address blocks: 23757 RIPE Region origin ASes present in the Internet Routing Table: 8190 RIPE Region origin ASes announcing only one prefix: 4284 RIPE Region transit ASes present in the Internet Routing Table: 1368 Average RIPE Region AS path length visible: 4.1 Max RIPE Region AS path length visible: 27 Number of RIPE addresses announced to Internet: 252938048 Equivalent to 15 /8s, 19 /16s and 135 /24s Percentage of available RIPE address space announced: 79.3
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: 11572 Total LACNIC prefixes after maximum aggregation: 3723 Prefixes being announced from the LACNIC address blocks: 9689 Unique aggregates announced from the LACNIC address blocks: 5544 LACNIC Region origin ASes present in the Internet Routing Table: 700 LACNIC Region origin ASes announcing only one prefix: 230 LACNIC Region transit ASes present in the Internet Routing Table: 139 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 24 Number of LACNIC addresses announced to Internet: 27422464 Equivalent to 1 /8s, 162 /16s and 111 /24s Percentage of available LACNIC address space announced: 40.9
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: 2264 Total AfriNIC prefixes after maximum aggregation: 912 Prefixes being announced from the AfriNIC address blocks: 1547 Unique aggregates announced from the AfriNIC address blocks: 962 AfriNIC Region origin ASes present in the Internet Routing Table: 158 AfriNIC Region origin ASes announcing only one prefix: 44 AfriNIC Region transit ASes present in the Internet Routing Table: 26 Average AfriNIC Region AS path length visible: 4.0 Max AfriNIC Region AS path length visible: 11 Number of AfriNIC addresses announced to Internet: 4121856 Equivalent to 0 /8s, 62 /16s and 229 /24s Percentage of available AfriNIC address space announced: 12.3
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 4755 919 257 70 Videsh Sanchar Nigam Ltd. Aut 9583 903 109 16 Sify Limited 4766 715 4436 310 Korea Telecom (KIX) 4134 709 4999 164 CHINANET-BACKBONE 1221 649 1668 481 Telstra Pty Ltd 9498 573 211 68 BHARTI BT INTERNET LTD. 7545 547 124 71 TPG Internet Pty Ltd 17488 519 32 10 Hathway IP Over Cable Interne 17676 487 7045 108 Softbank BB Corp. 9443 450 110 81 Primus Telecommunications 4538 434 2685 30 China Education and Research 18101 414 85 24 Reliance Infocom Ltd Internet 17557 402 31 179 Pakistan Telecom 9929 386 254 64 China Netcom Corp. 4802 381 80 168 Wantree Development 17974 379 129 14 PT TELEKOMUNIKASI INDONESIA 4780 364 225 27 Digital United Inc. 7474 364 211 229 SingTel Optus Pty Ltd 2907 344 1782 318 SINET Japan 4804 305 295 58 Microplex PTY LTD
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 687 1935 450 UUNET - Commercial IP service 3215 403 1680 93 France Telecom Transpac 3301 307 1343 294 TeliaNet Sweden 3352 306 1643 30 Ibernet, Internet Access Netw 3320 289 3989 242 Deutsche Telekom AG 8220 279 470 264 COLT Telecommunications 680 239 2008 236 DFN-IP service G-WiN 3246 238 505 228 Song Networks 5089 238 1691 46 NTL Group Limited 6746 237 90 212 Dynamic Network Technologies, 8708 216 275 202 Romania Data Systems S.A. 24863 216 42 10 LINKdotNET AS number 1257 214 740 168 SWIPnet Swedish IP Network 3269 201 2182 72 TELECOM ITALIA 8551 195 191 28 Bezeq International 30890 194 17 72 SC Kappa Invexim SRL 8866 183 37 15 Bulgarian Telecommunication C 5400 175 348 141 BT Ignite European Backbone 6830 173 781 36 UPC Distribution Services 786 172 1778 172 The JANET IP Service
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 701 5022 6751 767 UUNET Technologies, Inc. 4323 3145 743 262 Time Warner Telecom 705 1581 579 704 UUNET Technologies, Inc. 7018 1503 6271 948 AT&T WorldNet Services 174 1074 5706 889 Cogent Communications 721 1012 21998 313 DLA Systems Automation Center 6197 1011 625 473 BellSouth Network Solutions, 19029 948 151 109 New Edge Networks 18566 943 272 8 Covad Communications 2386 910 560 704 AT&T Data Communications Serv 7046 846 253 702 UUNET Technologies, Inc. 1239 837 2772 591 Sprint 20115 713 617 381 Charter Communications 19262 707 2057 181 Verizon Global Networks 209 704 3671 547 Qwest 22773 661 1741 37 Cox Communications, Inc. 7011 639 218 415 Citizens Utilities 11492 632 87 23 Cable One 6461 606 227 84 AboveNet Communications, Inc. 852 595 1084 380 Telus Advanced Communications
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4323 3145 2883 Time Warner Telecom 18566 943 935 Covad Communications 9583 903 887 Sify Limited 705 1581 877 UUNET Technologies, Inc. 4755 919 849 Videsh Sanchar Nigam Ltd. Aut 19029 948 839 New Edge Networks 721 1012 699 DLA Systems Automation Center 22773 661 624 Cox Communications, Inc. 11492 632 609 Cable One 7018 1503 555 AT&T WorldNet Services 4134 709 545 CHINANET-BACKBONE 6197 1011 538 BellSouth Network Solutions, 19262 707 526 Verizon Global Networks 6461 606 522 AboveNet Communications, Inc. 19916 563 509 OLM LLC 17488 519 509 Hathway IP Over Cable Interne 5668 529 506 CenturyTel Internet Holdings, 9498 573 505 BHARTI BT INTERNET LTD. 855 545 486 Canadian Research Network 2686 580 479 IBM
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 65075 PRIVATE 65.127.220.0/23 10886 University of Maryla 65473 PRIVATE 66.246.179.0/24 8001 Net Access Corporati 64500 RESERVED 81.17.39.128/27 24587 AS for Internet Onli 65516 PRIVATE 84.222.96.0/22 3257 Tiscali Intl Network 64704 PRIVATE 86.70.139.0/24 34383 TELOISE 65515 PRIVATE 87.251.34.0/24 12859 Business Internet Tr 65515 PRIVATE 87.251.36.0/24 12859 Business Internet Tr 65005 PRIVATE 129.26.0.0/16 680 DFN-IP service G-WiN 64513 PRIVATE 164.78.0.0/17 7610 SINGAPORE ADVANCE RE 64513 PRIVATE 164.78.0.0/16 7610 SINGAPORE ADVANCE RE 64513 PRIVATE 164.78.128.0/17 7610 SINGAPORE ADVANCE RE 64513 PRIVATE 164.78.247.0/24 7610 SINGAPORE ADVANCE RE 64513 PRIVATE 164.78.248.0/24 7610 SINGAPORE ADVANCE RE 64513 PRIVATE 164.78.249.0/24 7610 SINGAPORE ADVANCE RE 64513 PRIVATE 164.78.252.0/24 7610 SINGAPORE ADVANCE RE 65005 PRIVATE 192.54.34.0/23 680 DFN-IP service G-WiN 65005 PRIVATE 192.76.241.0/24 680 DFN-IP service G-WiN 65005 PRIVATE 192.76.245.0/24 680 DFN-IP service G-WiN 65005 PRIVATE 192.76.246.0/23 680 DFN-IP service G-WiN 65005 PRIVATE 192.76.248.0/24 680 DFN-IP service G-WiN 65530 PRIVATE 192.147.68.0/24 2901 New Mexico Technet 65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu 65517 PRIVATE 198.32.176.0/24 293 Energy Sciences Netw 65000 PRIVATE 199.133.62.0/24 10886 University of Maryla 65000 PRIVATE 199.133.63.0/24 10886 University of Maryla 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 65500 PRIVATE 204.147.94.0/24 57 University of Minnes 65500 PRIVATE 205.215.222.0/24 57 University of Minnes 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 213.154.248.0/28 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
Advertised Unallocated Addresses --------------------------------
Network Origin AS Description 2.2.2.0/24 64666 PRIVATE ASN 96.0.0.0/9 1660 ANS Communications 96.128.0.0/9 1660 ANS Communications 97.0.0.0/9 1660 ANS Communications 97.128.0.0/9 1660 ANS Communications 98.0.0.0/9 1660 ANS Communications 98.128.0.0/9 1660 ANS Communications 99.0.0.0/9 1660 ANS Communications 99.128.0.0/9 1660 ANS Communications 100.0.0.0/9 1660 ANS Communications 100.128.0.0/9 1660 ANS Communications 101.0.0.0/9 1660 ANS Communications 101.128.0.0/9 1660 ANS Communications 102.0.0.0/9 1660 ANS Communications 102.128.0.0/9 1660 ANS Communications 103.0.0.0/9 1660 ANS Communications 103.128.0.0/9 1660 ANS Communications 104.0.0.0/9 1660 ANS Communications 104.128.0.0/9 1660 ANS Communications 105.0.0.0/9 1660 ANS Communications 105.128.0.0/9 1660 ANS Communications 106.0.0.0/9 1660 ANS Communications 106.128.0.0/9 1660 ANS Communications 107.0.0.0/9 1660 ANS Communications 107.128.0.0/9 1660 ANS Communications 108.0.0.0/9 1660 ANS Communications 108.128.0.0/9 1660 ANS Communications 109.0.0.0/9 1660 ANS Communications 109.128.0.0/9 1660 ANS Communications 110.0.0.0/9 1660 ANS Communications 110.128.0.0/9 1660 ANS Communications 111.0.0.0/9 1660 ANS Communications 111.128.0.0/9 1660 ANS Communications 112.0.0.0/9 1660 ANS Communications 112.128.0.0/9 1660 ANS Communications 113.0.0.0/9 1660 ANS Communications 113.128.0.0/9 1660 ANS Communications 114.0.0.0/9 1660 ANS Communications 114.128.0.0/9 1660 ANS Communications 115.0.0.0/9 1660 ANS Communications 115.128.0.0/9 1660 ANS Communications 116.0.0.0/9 1660 ANS Communications 116.128.0.0/9 1660 ANS Communications 117.0.0.0/9 1660 ANS Communications 117.128.0.0/9 1660 ANS Communications 118.0.0.0/9 1660 ANS Communications 118.128.0.0/9 1660 ANS Communications 119.0.0.0/9 1660 ANS Communications 119.128.0.0/9 1660 ANS Communications 120.0.0.0/9 1660 ANS Communications 120.128.0.0/9 1660 ANS Communications 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 /9:67 /10:10 /11:28 /12:89 /13:200 /14:346 /15:698 /16:8811 /17:3187 /18:5336 /19:11751 /20:13380 /21:11929 /22:15295 /23:16662 /24:112487 /25:484 /26:417 /27:284 /28:210 /29:219 /30:467 /31:0 /32:104
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 701 3770 5022 UUNET Technologies, Inc. 4323 1869 3145 Time Warner Telecom 705 1017 1581 UUNET Technologies, Inc. 18566 926 943 Covad Communications 19029 879 948 New Edge Networks 6197 795 1011 BellSouth Network Solutions, 7018 795 1503 AT&T WorldNet Services 9583 734 903 Sify Limited 2386 628 910 AT&T Data Communications Serv 11492 623 632 Cable One 7046 600 846 UUNET Technologies, Inc. 19916 557 563 OLM LLC 7011 548 639 Citizens Utilities 2686 536 580 IBM 6461 533 606 AboveNet Communications, Inc. 4766 525 715 Korea Telecom (KIX) 702 471 687 UUNET - Commercial IP service 855 424 545 Canadian Research Network 5668 412 529 CenturyTel Internet Holdings, 15270 404 435 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global) ----------------------------------------------
2:1 4:9 8:42 12:1637 13:1 15:16 16:3 17:3 18:4 20:41 24:749 25:1 30:2 32:277 38:310 40:54 41:2 44:3 47:6 52:4 55:1 56:3 57:46 58:191 59:218 60:188 61:836 62:908 63:3427 64:3547 65:3617 66:3688 67:656 68:671 69:1553 70:380 71:80 72:775 74:43 80:797 81:663 82:660 83:398 84:391 85:560 86:389 87:365 88:103 89:265 121:1 122:2 123:1 124:278 125:444 128:166 129:188 130:119 131:318 132:34 133:9 134:158 135:48 136:178 137:82 138:206 139:160 140:470 141:134 142:406 143:166 144:222 145:40 146:315 147:141 148:318 149:191 150:114 151:93 152:72 153:107 154:6 155:202 156:98 157:148 158:169 159:173 160:91 161:79 162:244 163:150 164:224 165:216 166:169 167:246 168:609 169:128 170:335 171:14 183:1 190:76 192:5870 193:3380 194:2763 195:2072 196:884 198:4046 199:3297 200:4486 201:981 202:6848 203:7115 204:4091 205:2185 206:2798 207:3551 208:2949 209:4189 210:2081 211:727 212:1384 213:1575 214:364 215:40 216:4556 217:1365 218:282 219:214 220:719 221:350 222:182
End of report
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