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Routing Table Report 00:00 GMT Sun 25 Feb, 2007
Analysis Summary ----------------
BGP routing table entries examined: 224106 Prefixes after maximum aggregation: 116343 Deaggregation factor: 1.93 Unique aggregates announced to Internet: 103793 Total ASes present in the Internet Routing Table: 24522 Origin-only ASes present in the Internet Routing Table: 21329 Origin ASes announcing only one prefix: 10269 Transit ASes present in the Internet Routing Table: 3193 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: 31 Max AS path prepend of ASN (20858) 18 Prefixes from unregistered ASNs in the Routing Table: 62 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: 1689022948 Equivalent to 100 /8s, 172 /16s and 113 /24s Percentage of available address space announced: 45.6 Percentage of allocated address space announced: 62.6 Percentage of available address space allocated: 72.8 Total number of prefixes smaller than registry allocations: 118824
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 49538 Total APNIC prefixes after maximum aggregation: 19638 APNIC Deaggregation factor: 2.52 Prefixes being announced from the APNIC address blocks: 46540 Unique aggregates announced from the APNIC address blocks: 20392 APNIC Region origin ASes present in the Internet Routing Table: 2891 APNIC Region origin ASes announcing only one prefix: 779 APNIC Region transit ASes present in the Internet Routing Table: 436 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 19 Number of APNIC addresses announced to Internet: 290447680 Equivalent to 17 /8s, 79 /16s and 225 /24s Percentage of available APNIC address space announced: 71.9
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: 112682 Total ARIN prefixes after maximum aggregation: 62495 ARIN Deaggregation factor: 1.80 Prefixes being announced from the ARIN address blocks: 83791 Unique aggregates announced from the ARIN address blocks: 29562 ARIN Region origin ASes present in the Internet Routing Table: 11374 ARIN Region origin ASes announcing only one prefix: 4362 ARIN Region transit ASes present in the Internet Routing Table: 1056 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 321156064 Equivalent to 19 /8s, 36 /16s and 115 /24s Percentage of available ARIN address space announced: 70.9
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: 45149 Total RIPE prefixes after maximum aggregation: 29134 RIPE Deaggregation factor: 1.55 Prefixes being announced from the RIPE address blocks: 42052 Unique aggregates announced from the RIPE address blocks: 27142 RIPE Region origin ASes present in the Internet Routing Table: 9233 RIPE Region origin ASes announcing only one prefix: 4822 RIPE Region transit ASes present in the Internet Routing Table: 1496 Average RIPE Region AS path length visible: 4.2 Max RIPE Region AS path length visible: 31 Number of RIPE addresses announced to Internet: 292068736 Equivalent to 17 /8s, 104 /16s and 157 /24s Percentage of available RIPE address space announced: 79.1
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: 14024 Total LACNIC prefixes after maximum aggregation: 4085 LACNIC Deaggregation factor: 3.43 Prefixes being announced from the LACNIC address blocks: 12139 Unique aggregates announced from the LACNIC address blocks: 6995 LACNIC Region origin ASes present in the Internet Routing Table: 763 LACNIC Region origin ASes announcing only one prefix: 245 LACNIC Region transit ASes present in the Internet Routing Table: 134 Average LACNIC Region AS path length visible: 4.8 Max LACNIC Region AS path length visible: 22 Number of LACNIC addresses announced to Internet: 37607680 Equivalent to 2 /8s, 61 /16s and 217 /24s Percentage of available LACNIC address space announced: 56.0
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: 2653 Total AfriNIC prefixes after maximum aggregation: 989 AfriNIC Deaggregation factor: 2.68 Prefixes being announced from the AfriNIC address blocks: 1954 Unique aggregates announced from the AfriNIC address blocks: 1185 AfriNIC Region origin ASes present in the Internet Routing Table: 180 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: 4.2 Max AfriNIC Region AS path length visible: 25 Number of AfriNIC addresses announced to Internet: 5412864 Equivalent to 0 /8s, 82 /16s and 152 /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 1268 8690 272 CHINANET-BACKBONE 4755 1122 383 74 Videsh Sanchar Nigam Ltd. Aut 9583 1077 77 365 Sify Limited 9498 967 468 66 BHARTI BT INTERNET LTD. 23577 779 35 707 Korea Telecom (ATM-MPLS) 4766 766 4942 309 Korea Telecom (KIX) 1221 620 1686 452 Telstra Pty Ltd 17488 598 39 24 Hathway IP Over Cable Interne 7545 586 142 76 TPG Internet Pty Ltd 18101 528 103 23 Reliance Infocom Ltd Internet 17676 503 10935 65 Softbank BB Corp. 4812 499 763 72 China Telecom (Shanghai) 4668 461 68 10 LG-EDS Systems Inc. 7474 455 216 260 SingTel Optus Pty Ltd 9443 444 111 75 Primus Telecommunications 9942 430 85 125 COMindico Australia 17849 370 35 94 Telecommunications Technology 4802 362 86 149 Wantree Development 17557 354 34 166 Pakistan Telecom 2907 340 1749 311 SINET Japan
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 541 1895 419 UUNET - Commercial IP service 2119 396 812 333 Telenor Internet Access 24863 328 45 22 LINKdotNET AS number 3301 311 1199 290 TeliaNet Sweden 3320 297 4993 248 Deutsche Telekom AG 8220 273 469 263 COLT Telecommunications 6746 269 95 248 Dynamic Network Technologies, 1257 262 1116 173 SWIPnet Swedish IP Network 680 257 2044 251 DFN-IP service G-WiN 8708 242 284 228 Romania Data Systems S.A. 5089 240 1657 52 NTL Group Limited 3215 239 2224 92 France Telecom Transpac 5416 220 14 11 BATELCO-BH 3269 212 2423 72 TELECOM ITALIA 3246 208 355 197 Song Networks 30890 207 17 97 SC Kappa Invexim SRL 8551 206 197 25 Bezeq International 3352 200 1783 33 Ibernet, Internet Access Netw 20858 197 34 3 EgyNet 3300 186 171 89 AUCS Communications Services
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 701 4793 6692 746 UUNET Technologies, Inc. 7018 1504 10229 985 AT&T WorldNet Services 4323 1447 1005 351 Time Warner Telecom 7015 1385 983 92 AT&T Broadband 705 1303 557 598 UUNET Technologies, Inc. 6478 1125 443 193 AT&T Worldnet Services 2386 1114 570 738 AT&T Data Communications Serv 6197 1025 667 500 BellSouth Network Solutions, 18566 992 288 9 Covad Communications 11492 981 101 16 Cable One 174 945 6792 868 Cogent Communications 1239 804 2713 564 Sprint 20115 801 706 421 Charter Communications 7046 795 267 657 UUNET Technologies, Inc. 7011 789 227 474 Citizens Utilities 19262 757 2591 178 Verizon Global Networks 22773 732 1872 41 Cox Communications, Inc. 209 716 3744 572 Qwest 721 632 21787 274 DLA Systems Automation Center 852 605 1088 379 Telus Advanced Communications
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 7015 1385 1293 AT&T Broadband 4323 1447 1096 Time Warner Telecom 4755 1122 1048 Videsh Sanchar Nigam Ltd. Aut 4134 1268 996 CHINANET-BACKBONE 18566 992 983 Covad Communications 11492 981 965 Cable One 6478 1125 932 AT&T Worldnet Services 9498 967 901 BHARTI BT INTERNET LTD. 8151 1041 832 UniNet S.A. de C.V. 9583 1077 712 Sify Limited 705 1303 705 UUNET Technologies, Inc. 22773 732 691 Cox Communications, Inc. 19262 757 579 Verizon Global Networks 17488 598 574 Hathway IP Over Cable Interne 5668 571 555 CenturyTel Internet Holdings, 6197 1025 525 BellSouth Network Solutions, 7018 1504 519 AT&T WorldNet Services 19916 568 514 OLM LLC 7545 586 510 TPG Internet Pty Ltd 18101 528 505 Reliance Infocom Ltd Internet
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 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 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 65001 PRIVATE 216.240.208.0/20 6325 Illinois Century Net 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 2854 RoSprint AS (Global One Russi
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 /14:429 /15:830 /16:9284 /17:3806 /18:6283 /19:13397 /20:15212 /21:13986 /22:18105 /23:19616 /24:119705 /25:873 /26:689 /27:525 /28:215 /29:173 /30:471 /31:0 /32:75
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 701 3552 4793 UUNET Technologies, Inc. 7015 1240 1385 AT&T Broadband 6478 1077 1125 AT&T Worldnet Services 18566 974 992 Covad Communications 11492 967 981 Cable One 9583 913 1077 Sify Limited 2386 837 1114 AT&T Data Communications Serv 7018 811 1504 AT&T WorldNet Services 705 810 1303 UUNET Technologies, Inc. 6197 796 1025 BellSouth Network Solutions, 23577 765 779 Korea Telecom (ATM-MPLS) 7011 689 789 Citizens Utilities 4323 632 1447 Time Warner Telecom 9498 619 967 BHARTI BT INTERNET LTD. 4766 575 766 Korea Telecom (KIX) 19916 563 568 OLM LLC 7046 546 795 UUNET Technologies, Inc. 4755 528 1122 Videsh Sanchar Nigam Ltd. Aut 15270 475 507 PaeTec.net -a division of Pae 18101 459 528 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:9 7:1 8:62 9:1 12:1808 13:1 15:16 16:3 17:3 18:5 20:38 24:920 25:1 32:173 38:281 40:57 41:91 44:2 47:7 52:4 55:1 56:3 57:52 58:324 59:391 60:211 61:956 62:1093 63:3333 64:3300 65:3670 66:3259 67:747 68:661 69:1742 70:458 71:98 72:1222 73:7 74:376 75:81 76:47 77:34 80:838 81:788 82:700 83:375 84:509 85:758 86:442 87:494 88:246 89:803 90:3 91:184 97:1 116:1 117:1 118:1 119:1 120:1 121:142 122:421 123:49 124:597 125:933 128:303 129:219 130:125 131:348 132:49 133:10 134:188 135:38 136:181 137:96 138:195 139:104 140:502 141:142 142:374 143:211 144:268 145:43 146:314 147:150 148:376 149:190 150:114 151:116 152:97 153:118 154:6 155:247 156:151 157:161 158:168 159:151 160:99 161:91 162:231 163:162 164:459 165:385 166:245 167:283 168:515 169:119 170:380 171:15 172:1 189:196 190:426 192:5792 193:3743 194:3037 195:2295 196:1007 198:3880 199:3351 200:4606 201:983 202:7257 203:7392 204:4109 205:2178 206:2636 207:3108 208:3180 209:3718 210:2395 211:975 212:1360 213:1476 214:407 215:39 216:4253 217:1179 218:368 219:271 220:873 221:374 222:264
End of report
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