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Routing Table Report 00:00 GMT Wed 21 Feb, 2007
Analysis Summary ----------------
BGP routing table entries examined: 222407 Prefixes after maximum aggregation: 116363 Deaggregation factor: 1.91 Unique aggregates announced to Internet: 103618 Total ASes present in the Internet Routing Table: 24468 Origin-only ASes present in the Internet Routing Table: 21294 Origin ASes announcing only one prefix: 10247 Transit ASes present in the Internet Routing Table: 3174 Transit-only ASes present in the Internet Routing Table: 72 Average AS path length visible in the Internet Routing Table: 4.2 Max AS path length visible: 31 Max AS path prepend of ASN (17697) 13 Prefixes from unregistered ASNs in the Routing Table: 63 Unregistered ASNs in the Routing Table: 25 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 12 Number of addresses announced to Internet: 1687444040 Equivalent to 100 /8s, 148 /16s and 90 /24s Percentage of available address space announced: 45.5 Percentage of allocated address space announced: 62.6 Percentage of available address space allocated: 72.8 Total number of prefixes smaller than registry allocations: 117348
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 49012 Total APNIC prefixes after maximum aggregation: 19489 APNIC Deaggregation factor: 2.51 Prefixes being announced from the APNIC address blocks: 46097 Unique aggregates announced from the APNIC address blocks: 20291 APNIC Region origin ASes present in the Internet Routing Table: 2877 APNIC Region origin ASes announcing only one prefix: 777 APNIC Region transit ASes present in the Internet Routing Table: 434 Average APNIC Region AS path length visible: 4.8 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 290846880 Equivalent to 17 /8s, 85 /16s and 248 /24s Percentage of available APNIC address space announced: 72.0
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, 116/6, 120/6, 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: 111572 Total ARIN prefixes after maximum aggregation: 62731 ARIN Deaggregation factor: 1.78 Prefixes being announced from the ARIN address blocks: 82526 Unique aggregates announced from the ARIN address blocks: 29507 ARIN Region origin ASes present in the Internet Routing Table: 11355 ARIN Region origin ASes announcing only one prefix: 4340 ARIN Region transit ASes present in the Internet Routing Table: 1047 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 320297696 Equivalent to 19 /8s, 23 /16s and 90 /24s Percentage of available ARIN address space announced: 70.7
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, 96/6, 199/8, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary ----------------------------
Prefixes being announced by RIPE Region ASes: 45061 Total RIPE prefixes after maximum aggregation: 29068 RIPE Deaggregation factor: 1.55 Prefixes being announced from the RIPE address blocks: 41966 Unique aggregates announced from the RIPE address blocks: 27073 RIPE Region origin ASes present in the Internet Routing Table: 9216 RIPE Region origin ASes announcing only one prefix: 4819 RIPE Region transit ASes present in the Internet Routing Table: 1486 Average RIPE Region AS path length visible: 3.8 Max RIPE Region AS path length visible: 31 Number of RIPE addresses announced to Internet: 291077760 Equivalent to 17 /8s, 89 /16s and 126 /24s Percentage of available RIPE address space announced: 78.9
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 40960-43007 RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary ------------------------------
Prefixes being announced by LACNIC Region ASes: 14035 Total LACNIC prefixes after maximum aggregation: 4075 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 12106 Unique aggregates announced from the LACNIC address blocks: 7032 LACNIC Region origin ASes present in the Internet Routing Table: 763 LACNIC Region origin ASes announcing only one prefix: 250 LACNIC Region transit ASes present in the Internet Routing Table: 134 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 37512448 Equivalent to 2 /8s, 60 /16s and 101 /24s Percentage of available LACNIC address space announced: 55.9
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: 2666 Total AfriNIC prefixes after maximum aggregation: 998 AfriNIC Deaggregation factor: 2.67 Prefixes being announced from the AfriNIC address blocks: 1960 Unique aggregates announced from the AfriNIC address blocks: 1180 AfriNIC Region origin ASes present in the Internet Routing Table: 184 AfriNIC Region origin ASes announcing only one prefix: 60 AfriNIC Region transit ASes present in the Internet Routing Table: 35 Average AfriNIC Region AS path length visible: 4.1 Max AfriNIC Region AS path length visible: 16 Number of AfriNIC addresses announced to Internet: 5416192 Equivalent to 0 /8s, 82 /16s and 165 /24s Percentage of available AfriNIC address space announced: 16.1
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 1274 8702 278 CHINANET-BACKBONE 4755 1113 383 72 Videsh Sanchar Nigam Ltd. Aut 9583 1070 77 369 Sify Limited 9498 956 468 66 BHARTI BT INTERNET LTD. 23577 780 35 708 Korea Telecom (ATM-MPLS) 4766 767 4944 310 Korea Telecom (KIX) 1221 619 1686 451 Telstra Pty Ltd 17488 597 39 26 Hathway IP Over Cable Interne 7545 583 142 77 TPG Internet Pty Ltd 18101 522 103 23 Reliance Infocom Ltd Internet 17676 503 10935 65 Softbank BB Corp. 4812 499 763 72 China Telecom (Shanghai) 4668 461 67 12 LG-EDS Systems Inc. 7474 454 216 260 SingTel Optus Pty Ltd 9443 443 111 75 Primus Telecommunications 9942 432 85 127 COMindico Australia 17849 370 35 94 Telecommunications Technology 4802 360 86 148 Wantree Development 17557 346 33 162 Pakistan Telecom 2907 341 1765 312 SINET Japan
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 547 1896 425 UUNET - Commercial IP service 2119 397 829 334 Telenor Internet Access 24863 324 44 24 LINKdotNET AS number 3301 313 1199 291 TeliaNet Sweden 3320 298 4993 249 Deutsche Telekom AG 8220 271 469 261 COLT Telecommunications 6746 268 95 247 Dynamic Network Technologies, 1257 262 1112 173 SWIPnet Swedish IP Network 680 257 2044 251 DFN-IP service G-WiN 8708 242 284 228 Romania Data Systems S.A. 3215 238 2224 92 France Telecom Transpac 5089 238 1657 51 NTL Group Limited 5416 220 14 11 BATELCO-BH 3269 212 2423 72 TELECOM ITALIA 3246 208 355 197 Song Networks 8551 205 197 25 Bezeq International 30890 205 17 97 SC Kappa Invexim SRL 3352 200 1783 33 Ibernet, Internet Access Netw 20858 197 34 3 EgyNet 3300 188 171 92 AUCS Communications Services
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 701 4797 6695 751 UUNET Technologies, Inc. 7018 1497 6117 979 AT&T WorldNet Services 4323 1373 892 552 Time Warner Telecom 705 1328 558 599 UUNET Technologies, Inc. 6478 1130 451 198 AT&T Worldnet Services 2386 1107 570 732 AT&T Data Communications Serv 6197 1016 651 498 BellSouth Network Solutions, 18566 991 288 9 Covad Communications 11492 960 100 18 Cable One 174 937 6791 863 Cogent Communications 1239 818 2730 573 Sprint 20115 806 708 422 Charter Communications 7046 792 266 654 UUNET Technologies, Inc. 7011 785 226 474 Citizens Utilities 19262 757 2591 178 Verizon Global Networks 22773 732 1872 41 Cox Communications, Inc. 209 715 3744 571 Qwest 721 641 21787 274 DLA Systems Automation Center 852 620 1090 392 Telus Advanced Communications 577 587 760 204 Bell Advanced Communications
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4755 1113 1041 Videsh Sanchar Nigam Ltd. Aut 4134 1274 996 CHINANET-BACKBONE 18566 991 982 Covad Communications 11492 960 942 Cable One 6478 1130 932 AT&T Worldnet Services 9498 956 890 BHARTI BT INTERNET LTD. 4323 1373 821 Time Warner Telecom 8151 1015 804 UniNet S.A. de C.V. 705 1328 729 UUNET Technologies, Inc. 9583 1070 701 Sify Limited 22773 732 691 Cox Communications, Inc. 19262 757 579 Verizon Global Networks 17488 597 571 Hathway IP Over Cable Interne 5668 573 557 CenturyTel Internet Holdings, 7018 1497 518 AT&T WorldNet Services 6197 1016 518 BellSouth Network Solutions, 19916 568 514 OLM LLC 7545 583 506 TPG Internet Pty Ltd 18101 522 499 Reliance Infocom Ltd Internet 855 566 496 Canadian Research Network
List of Unregistered Origin ASNs (Global) -----------------------------------------
Bad AS Designation Network Transit AS Description 65533 PRIVATE 4.33.8.0/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.16/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.32/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.48/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.64/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.80/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.96/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.112/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.128/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.144/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.160/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.176/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.192/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.208/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.224/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.240/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.9.0/26 293 Energy Sciences Netw 65533 PRIVATE 4.33.9.128/27 293 Energy Sciences Netw 65533 PRIVATE 4.33.9.192/27 293 Energy Sciences Netw 65533 PRIVATE 4.33.9.224/27 293 Energy Sciences Netw 65533 PRIVATE 4.33.10.0/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.10.16/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.10.32/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.10.48/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.10.64/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.10.80/28 293 Energy Sciences Netw 65332 PRIVATE 63.166.106.192/27 1803 SPRINT 64512 PRIVATE 144.16.192.0/24 9583 Sify Limited 64513 PRIVATE 194.149.101.192/28 6721 The Terminal Bar: In 64527 PRIVATE 194.149.115.64/28 6721 The Terminal Bar: In 64524 PRIVATE 194.149.116.64/28 6721 The Terminal Bar: In 64514 PRIVATE 194.149.116.176/28 6721 The Terminal Bar: In 64532 PRIVATE 195.22.48.64/27 6721 The Terminal Bar: In 64526 PRIVATE 195.47.13.96/28 6721 The Terminal Bar: In 64542 PRIVATE 195.47.24.112/28 6721 The Terminal Bar: In 64542 PRIVATE 195.47.24.128/27 6721 The Terminal Bar: In 64542 PRIVATE 195.47.25.192/27 6721 The Terminal Bar: In 64519 PRIVATE 195.47.33.160/27 6721 The Terminal Bar: In 64519 PRIVATE 195.47.33.192/28 6721 The Terminal Bar: In 64526 PRIVATE 195.47.39.128/26 6721 The Terminal Bar: In 64513 PRIVATE 195.47.40.128/26 6721 The Terminal Bar: In 64513 PRIVATE 195.47.40.128/25 6721 The Terminal Bar: In 64513 PRIVATE 195.47.40.192/26 6721 The Terminal Bar: In 64540 PRIVATE 195.47.75.48/28 6721 The Terminal Bar: In 64516 PRIVATE 195.47.88.128/25 6721 The Terminal Bar: In 64526 PRIVATE 195.47.100.0/25 6721 The Terminal Bar: In 65000 PRIVATE 195.47.102.0/25 6721 The Terminal Bar: In 64514 PRIVATE 195.144.99.0/26 6721 The Terminal Bar: In 64514 PRIVATE 195.144.99.64/27 6721 The Terminal Bar: In 64514 PRIVATE 195.144.99.96/28 6721 The Terminal Bar: In 64514 PRIVATE 195.144.99.112/28 6721 The Terminal Bar: In 64514 PRIVATE 195.144.99.128/25 6721 The Terminal Bar: In 65106 PRIVATE 195.219.161.0/27 6453 Teleglobe Inc. 65011 PRIVATE 203.116.243.0/24 4657 Starhub Internet, Si 24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE 24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com 65517 PRIVATE 213.154.248.0/29 12859 Business Internet Tr 65517 PRIVATE 213.154.248.8/29 12859 Business Internet Tr 22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So 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 192.0.2.0/24 812 Rogers WAVE
Advertised Unallocated Addresses --------------------------------
Network Origin AS Description 7.1.1.0/24 1239 Sprint 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 172.33.1.0/24 7018 AT&T WorldNet Services 180.190.0.0/16 24003 JUBILANT ORGANOSYS LTD., INDI 192.0.10.0/24 9498 BHARTI BT INTERNET LTD. 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 192.153.136.0/21 721 DLA Systems Automation Center 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 /8:20 /9:9 /10:12 /11:34 /12:119 /13:238 /14:428 /15:831 /16:9263 /17:3788 /18:6258 /19:13367 /20:15107 /21:13739 /22:17814 /23:19177 /24:119192 /25:882 /26:659 /27:526 /28:218 /29:178 /30:470 /31:0 /32:78
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 701 3553 4797 UUNET Technologies, Inc. 6478 1077 1130 AT&T Worldnet Services 18566 973 991 Covad Communications 11492 946 960 Cable One 9583 907 1070 Sify Limited 2386 834 1107 AT&T Data Communications Serv 705 824 1328 UUNET Technologies, Inc. 7018 809 1497 AT&T WorldNet Services 6197 795 1016 BellSouth Network Solutions, 23577 766 780 Korea Telecom (ATM-MPLS) 7011 686 785 Citizens Utilities 9498 610 956 BHARTI BT INTERNET LTD. 4323 584 1373 Time Warner Telecom 4766 575 767 Korea Telecom (KIX) 19916 563 568 OLM LLC 7046 545 792 UUNET Technologies, Inc. 4755 521 1113 Videsh Sanchar Nigam Ltd. Aut 15270 475 507 PaeTec.net -a division of Pae 855 465 566 Canadian Research Network 4668 453 461 LG-EDS Systems Inc.
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:9 7:1 8:62 9:1 12:1809 13:1 15:16 16:3 17:3 18:5 20:38 24:908 25:1 32:172 38:281 40:57 41:89 44:2 47:7 52:4 55:1 56:3 57:52 58:320 59:388 60:211 61:961 62:1092 63:3332 64:3322 65:3667 66:3258 67:739 68:662 69:1744 70:459 71:98 72:1216 73:1 74:167 75:80 76:6 77:32 80:856 81:783 82:702 83:375 84:514 85:755 86:425 87:491 88:246 89:795 90:3 91:201 97:1 116:1 117:1 118:1 119:1 120:1 121:138 122:287 123:39 124:572 125:856 128:308 129:219 130:131 131:348 132:49 133:10 134:187 135:38 136:181 137:122 138:196 139:103 140:504 141:142 142:391 143:212 144:274 145:43 146:315 147:149 148:373 149:192 150:114 151:116 152:96 153:119 154:6 155:247 156:151 157:175 158:169 159:147 160:99 161:91 162:231 163:163 164:459 165:382 166:245 167:282 168:505 169:120 170:387 171:15 172:1 189:172 190:425 192:5796 193:3722 194:3010 195:2300 196:1016 198:3890 199:3355 200:4614 201:983 202:7223 203:7392 204:4109 205:2174 206:2620 207:3102 208:3162 209:3735 210:2388 211:974 212:1370 213:1479 214:405 215:39 216:4285 217:1179 218:367 219:272 220:870 221:373 222:260
End of report
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