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Routing Table Report 00:00 GMT Sat 24 Feb, 2007
Analysis Summary ----------------
BGP routing table entries examined: 224233 Prefixes after maximum aggregation: 116316 Deaggregation factor: 1.93 Unique aggregates announced to Internet: 103815 Total ASes present in the Internet Routing Table: 24519 Origin-only ASes present in the Internet Routing Table: 21315 Origin ASes announcing only one prefix: 10275 Transit ASes present in the Internet Routing Table: 3204 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: 11 Number of addresses announced to Internet: 1688924388 Equivalent to 100 /8s, 170 /16s and 240 /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: 118912
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 49563 Total APNIC prefixes after maximum aggregation: 19645 APNIC Deaggregation factor: 2.52 Prefixes being announced from the APNIC address blocks: 46567 Unique aggregates announced from the APNIC address blocks: 20407 APNIC Region origin ASes present in the Internet Routing Table: 2886 APNIC Region origin ASes announcing only one prefix: 776 APNIC Region transit ASes present in the Internet Routing Table: 437 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 19 Number of APNIC addresses announced to Internet: 290427456 Equivalent to 17 /8s, 79 /16s and 146 /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: 112756 Total ARIN prefixes after maximum aggregation: 62506 ARIN Deaggregation factor: 1.80 Prefixes being announced from the ARIN address blocks: 83830 Unique aggregates announced from the ARIN address blocks: 29553 ARIN Region origin ASes present in the Internet Routing Table: 11373 ARIN Region origin ASes announcing only one prefix: 4368 ARIN Region transit ASes present in the Internet Routing Table: 1055 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 321155552 Equivalent to 19 /8s, 36 /16s and 113 /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: 45126 Total RIPE prefixes after maximum aggregation: 29121 RIPE Deaggregation factor: 1.55 Prefixes being announced from the RIPE address blocks: 42031 Unique aggregates announced from the RIPE address blocks: 27115 RIPE Region origin ASes present in the Internet Routing Table: 9235 RIPE Region origin ASes announcing only one prefix: 4823 RIPE Region transit ASes present in the Internet Routing Table: 1507 Average RIPE Region AS path length visible: 4.2 Max RIPE Region AS path length visible: 31 Number of RIPE addresses announced to Internet: 291989632 Equivalent to 17 /8s, 103 /16s and 104 /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: 14072 Total LACNIC prefixes after maximum aggregation: 4050 LACNIC Deaggregation factor: 3.47 Prefixes being announced from the LACNIC address blocks: 12166 Unique aggregates announced from the LACNIC address blocks: 7006 LACNIC Region origin ASes present in the Internet Routing Table: 762 LACNIC Region origin ASes announcing only one prefix: 246 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: 37669120 Equivalent to 2 /8s, 62 /16s and 201 /24s Percentage of available LACNIC address space announced: 56.1
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: 2656 Total AfriNIC prefixes after maximum aggregation: 992 AfriNIC Deaggregation factor: 2.68 Prefixes being announced from the AfriNIC address blocks: 1960 Unique aggregates announced from the AfriNIC address blocks: 1182 AfriNIC Region origin ASes present in the Internet Routing Table: 182 AfriNIC Region origin ASes announcing only one prefix: 61 AfriNIC Region transit ASes present in the Internet Routing Table: 37 Average AfriNIC Region AS path length visible: 4.1 Max AfriNIC Region AS path length visible: 25 Number of AfriNIC addresses announced to Internet: 5420544 Equivalent to 0 /8s, 82 /16s and 182 /24s Percentage of available AfriNIC address space announced: 16.2
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 1121 383 74 Videsh Sanchar Nigam Ltd. Aut 9583 1077 77 365 Sify Limited 9498 964 468 66 BHARTI BT INTERNET LTD. 23577 778 35 706 Korea Telecom (ATM-MPLS) 4766 768 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 522 103 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 17974 358 129 14 PT TELEKOMUNIKASI INDONESIA 17557 356 34 167 Pakistan Telecom
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 270 95 248 Dynamic Network Technologies, 1257 263 1116 174 SWIPnet Swedish IP Network 680 257 2044 251 DFN-IP service G-WiN 8708 242 284 228 Romania Data Systems S.A. 5089 241 1657 52 NTL Group Limited 3215 239 2224 92 France Telecom Transpac 5416 220 14 11 BATELCO-BH 3269 212 2423 72 TELECOM ITALIA 30890 207 17 97 SC Kappa Invexim SRL 8551 206 197 25 Bezeq International 3246 203 350 193 Song Networks 3352 201 1783 33 Ibernet, Internet Access Netw 20858 197 34 3 EgyNet 3300 188 171 91 AUCS Communications Services
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 701 4797 6694 750 UUNET Technologies, Inc. 7018 1506 10229 986 AT&T WorldNet Services 4323 1448 1005 351 Time Warner Telecom 7015 1385 983 92 AT&T Broadband 705 1327 557 598 UUNET Technologies, Inc. 6478 1125 443 193 AT&T Worldnet Services 2386 1116 570 740 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 805 2713 565 Sprint 20115 801 706 421 Charter Communications 7011 799 229 475 Citizens Utilities 7046 794 267 656 UUNET Technologies, Inc. 19262 757 2591 178 Verizon Global Networks 22773 732 1872 41 Cox Communications, Inc. 209 715 3744 571 Qwest 721 632 21787 274 DLA Systems Automation Center 852 610 1088 382 Telus Advanced Communications
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 7015 1385 1293 AT&T Broadband 4323 1448 1097 Time Warner Telecom 4755 1121 1047 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 964 898 BHARTI BT INTERNET LTD. 8151 1039 829 UniNet S.A. de C.V. 705 1327 729 UUNET Technologies, Inc. 9583 1077 712 Sify Limited 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 1506 520 AT&T WorldNet Services 19916 568 514 OLM LLC 7545 586 510 TPG Internet Pty Ltd 18101 522 499 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 192.153.136.0/21 721 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 /16:9283 /17:3807 /18:6284 /19:13409 /20:15218 /21:14011 /22:18098 /23:19621 /24:119754 /25:886 /26:691 /27:528 /28:219 /29:176 /30:473 /31:0 /32:84
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 701 3555 4797 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 839 1116 AT&T Data Communications Serv 705 823 1327 UUNET Technologies, Inc. 7018 812 1506 AT&T WorldNet Services 6197 796 1025 BellSouth Network Solutions, 23577 764 778 Korea Telecom (ATM-MPLS) 7011 698 799 Citizens Utilities 4323 633 1448 Time Warner Telecom 9498 617 964 BHARTI BT INTERNET LTD. 4766 577 768 Korea Telecom (KIX) 19916 563 568 OLM LLC 7046 545 794 UUNET Technologies, Inc. 4755 527 1121 Videsh Sanchar Nigam Ltd. Aut 15270 475 507 PaeTec.net -a division of Pae 855 465 565 Canadian Research Network
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:9 7:1 8:62 9:1 12:1815 13:1 15:16 16:3 17:3 18:5 20:38 24:920 25:1 32:173 38:282 40:57 41:92 44:2 47:7 52:4 55:1 56:3 57:52 58:322 59:391 60:211 61:961 62:1095 63:3335 64:3307 65:3673 66:3255 67:747 68:661 69:1743 70:459 71:98 72:1222 73:7 74:379 75:81 76:47 77:34 80:836 81:772 82:700 83:375 84:509 85:755 86:436 87:494 88:246 89:802 90:3 91:185 97:1 116:1 117:1 118:1 119:1 120:1 121:144 122:421 123:49 124:596 125:932 128:308 129:219 130:131 131:348 132:49 133:10 134:188 135:38 136:181 137:97 138:195 139:104 140:502 141:142 142:394 143:212 144:270 145:43 146:314 147:150 148:370 149:174 150:114 151:116 152:97 153:118 154:6 155:246 156:151 157:176 158:168 159:151 160:99 161:91 162:231 163:162 164:459 165:386 166:245 167:282 168:515 169:119 170:380 171:15 172:1 189:196 190:425 192:5782 193:3748 194:3031 195:2294 196:1008 198:3885 199:3346 200:4623 201:985 202:7260 203:7420 204:4106 205:2177 206:2638 207:3105 208:3175 209:3709 210:2399 211:975 212:1362 213:1473 214:405 215:39 216:4260 217:1179 218:368 219:271 220:868 221:374 222:264
End of report
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