Routing Table Report 04:00 +10GMT Wed 11 Jan, 2006
Analysis Summary
----------------
BGP routing table entries examined: 177967
Prefixes after maximum aggregation: 100001
Unique aggregates announced to Internet: 86509
Total ASes present in the Internet Routing Table: 21288
Origin-only ASes present in the Internet Routing Table: 18519
Origin ASes announcing only one prefix: 8779
Transit ASes present in the Internet Routing Table: 2769
Transit-only ASes present in the Internet Routing Table: 69
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 25
Prefixes from unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1478648064
Equivalent to 88 /8s, 34 /16s and 97 /24s
Percentage of available address space announced: 39.9
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 85849
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37367
Total APNIC prefixes after maximum aggregation: 15830
Prefixes being announced from the APNIC address blocks: 35153
Unique aggregates announced from the APNIC address blocks: 17231
APNIC Region origin ASes present in the Internet Routing Table: 2456
APNIC Region origin ASes announcing only one prefix: 695
APNIC Region transit ASes present in the Internet Routing Table: 377
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 210117824
Equivalent to 12 /8s, 134 /16s and 36 /24s
Percentage of available APNIC address space announced: 65.7
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: 93704
Total ARIN prefixes after maximum aggregation: 56264
Prefixes being announced from the ARIN address blocks: 73050
Unique aggregates announced from the ARIN address blocks: 27990
ARIN Region origin ASes present in the Internet Routing Table: 10417
ARIN Region origin ASes announcing only one prefix: 3873
ARIN Region transit ASes present in the Internet Routing Table: 963
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 281947136
Equivalent to 16 /8s, 206 /16s and 44 /24s
Percentage of available ARIN address space announced: 70.0
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 34876
Total RIPE prefixes after maximum aggregation: 23632
Prefixes being announced from the RIPE address blocks: 31867
Unique aggregates announced from the RIPE address blocks: 21433
RIPE Region origin ASes present in the Internet Routing Table: 7538
RIPE Region origin ASes announcing only one prefix: 3952
RIPE Region transit ASes present in the Internet Routing Table: 1237
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 229320064
Equivalent to 13 /8s, 171 /16s and 37 /24s
Percentage of available RIPE address space announced: 68.3
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
RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 10163
Total LACNIC prefixes after maximum aggregation: 3413
Prefixes being announced from the LACNIC address blocks: 8341
Unique aggregates announced from the LACNIC address blocks: 4824
LACNIC Region origin ASes present in the Internet Routing Table: 662
LACNIC Region origin ASes announcing only one prefix: 212
LACNIC Region transit ASes present in the Internet Routing Table: 125
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 23565056
Equivalent to 1 /8s, 103 /16s and 147 /24s
Percentage of available LACNIC address space announced: 35.1
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: 1851
Total AfriNIC prefixes after maximum aggregation: 862
Prefixes being announced from the AfriNIC address blocks: 1212
Unique aggregates announced from the AfriNIC address blocks: 857
AfriNIC Region origin ASes present in the Internet Routing Table: 145
AfriNIC Region origin ASes announcing only one prefix: 47
AfriNIC Region transit ASes present in the Internet Routing Table: 26
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2972672
Equivalent to 0 /8s, 45 /16s and 92 /24s
Percentage of available AfriNIC address space announced: 8.9
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 996 6450 206 CHINANET-BACKBONE
9583 827 77 12 Sify Limited
4755 769 258 64 Videsh Sanchar Nigam Ltd. Aut
4766 722 3930 299 Korea Telecom (KIX)
1221 670 1364 476 Telstra Pty Ltd
7545 514 108 70 TPG Internet Pty Ltd
9498 487 211 69 BHARTI BT INTERNET LTD.
17676 477 6885 101 Softbank BB Corp.
17488 436 26 9 Hathway IP Over Cable Interne
9443 399 89 85 Primus Telecommunications
4802 354 74 160 Wantree Development
2907 338 1763 315 SINET Japan
9929 332 217 50 China Netcom Corp.
7474 329 227 227 SingTel Optus Pty Ltd
18101 324 68 23 Reliance Infocom Ltd Internet
17557 308 24 161 Pakistan Telecom
17974 301 72 31 PT TELEKOMUNIKASI INDONESIA
4780 283 226 16 Digital United Inc.
9837 270 78 169 Powertel Ltd
9394 260 690 7 CHINA RAILWAY Internet(CRNET)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1456 6312 948 AT&T WorldNet Services
4323 1202 723 235 Time Warner Telecom
174 1042 5825 960 Cogent Communications
721 1031 21938 309 DLA Systems Automation Center
6197 966 434 508 BellSouth Network Solutions,
701 961 8082 806 UUNET Technologies, Inc.
2386 914 517 686 AT&T Data Communications Serv
18566 890 272 8 Covad Communications
1239 845 2805 600 Sprint
209 659 3606 527 Qwest
20115 657 537 339 Charter Communications
11492 640 89 12 Cable One
22773 602 1478 33 Cox Communications, Inc.
19262 593 1707 146 Verizon Global Networks
852 570 1092 379 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 561 243 65 Canadian Research Network
6478 526 1448 289 AT&T Worldnet Services
3602 523 127 106 Sprint Canada, Inc.
3356 519 10617 399 Level 3 Communications, LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 590 1954 468 UUNET - Commercial IP service
3301 303 1071 289 TeliaNet Sweden
3320 286 3486 240 Deutsche Telekom AG
8220 274 474 268 COLT Telecommunications
680 244 2024 238 DFN-IP service G-WiN
3246 229 487 218 Song Networks
8708 222 274 206 Romania Data Systems S.A.
6746 207 52 179 Dynamic Network Technologies,
1257 190 712 170 SWIPnet Swedish IP Network
3269 184 1893 69 TELECOM ITALIA
5515 180 840 127 Sonera Solution Autonomous Sy
786 173 1794 173 The JANET IP Service
8866 172 37 11 Bulgarian Telecommunication C
5400 166 328 135 BT Ignite European Backbone
24863 166 38 9 LINKdotNET AS number
3215 163 1334 80 France Telecom Transpac
6830 162 669 33 UPC Distribution Services
3300 159 169 90 AUCS Communications Services
12479 158 322 5 Uni2 Autonomous System
25186 150 211 105 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 543 792 212 UniNet S.A. de C.V.
22047 380 141 43 VTR PUNTO NET S.A.
11172 296 109 77 Servicios Alestra S.A de C.V
16814 294 18 7 NSS, S.A.
14117 184 11 6 Telefonica del Sur S.A.
13999 175 52 9 Mega Cable S.A. de C.V.
7303 153 73 18 Telecom Argentina Stet-France
6147 150 118 21 Telefonica Del Peru
11556 130 64 3 Cable-Wireless Panama
19169 126 8 29 Telconet
10481 121 48 8 Prima S.A.
6503 115 148 76 AVANTEL, S.A.
21826 113 14 19 INTERCABLE
5639 112 12 9 Telecommunications Services o
6505 107 88 80 Global One Communicaoes Ltda
11311 101 8 14 Sinectis S.A.
18822 99 8 10 TELEFONICA MANQUEHUE
14522 97 12 8 SatNet S.A.
7315 96 6 3 Grupo Rey Moreno
4270 93 17 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 273 812 230 The Internet Solution
8452 141 60 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
15475 101 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
6713 71 71 10 Itissalat Al-MAGHRIB
24835 67 34 6 RAYA Telecom - Egypt
20928 61 16 2 Noor Advanced Technologies AS
5713 39 167 35 Telkom SA Ltd
33774 35 5 26 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
23889 25 7 10 MAURITIUS TELECOM
8524 23 1 4 AUCEGYPT Autonomous System
21280 23 4 4 Swift Global Kenya Ltd.Is an
10798 22 1 13 Standard Bank of South Africa
16637 22 10 20 Johnnic e-Ventures
12455 19 6 5 Jambonet Autonomous system
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1202 967 Time Warner Telecom
18566 890 882 Covad Communications
9583 827 815 Sify Limited
4134 996 790 CHINANET-BACKBONE
721 1031 722 DLA Systems Automation Center
4755 769 705 Videsh Sanchar Nigam Ltd. Aut
11492 640 628 Cable One
22773 602 569 Cox Communications, Inc.
19916 563 509 OLM LLC
855 561 496 Canadian Research Network
5668 511 487 CenturyTel Internet Holdings,
6197 966 458 BellSouth Network Solutions,
19262 593 447 Verizon Global Networks
7545 514 444 TPG Internet Pty Ltd
17488 436 427 Hathway IP Over Cable Interne
4766 722 423 Korea Telecom (KIX)
9498 487 418 BHARTI BT INTERNET LTD.
3602 523 417 Sprint Canada, Inc.
17676 477 376 Softbank BB Corp.
6467 403 356 E.Spire Communications, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
38976 UNALLOCATED 62.192.224.0/19 21166 Satgate autonomous s
38976 UNALLOCATED 62.192.232.0/24 21166 Satgate autonomous s
38972 UNALLOCATED 80.251.144.0/21 6828 Ekaterinburg Telegra
38972 UNALLOCATED 80.251.151.0/24 6828 Ekaterinburg Telegra
38972 UNALLOCATED 80.251.152.0/23 28947 CJSC InT, Ekaterinbu
29544 UNALLOCATED 82.151.64.0/19 12956 Telefonica Data Auto
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
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
192.43.230.0/24 7575 Australian Academic and Rease
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
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
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 /9:5 /10:8 /11:20 /12:87
/13:196 /14:346 /15:673 /16:8639 /17:2947 /18:4967
/19:11202 /20:12316 /21:10513 /22:13613 /23:14763 /24:96678
/25:345 /26:251 /27:198 /28:62 /29:26 /30:54
/31:3 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 873 890 Covad Communications
6197 781 966 BellSouth Network Solutions,
7018 728 1456 AT&T WorldNet Services
9583 650 827 Sify Limited
2386 637 914 AT&T Data Communications Serv
11492 631 640 Cable One
4323 577 1202 Time Warner Telecom
19916 557 563 OLM LLC
4766 522 722 Korea Telecom (KIX)
855 433 561 Canadian Research Network
5668 400 511 CenturyTel Internet Holdings,
7011 399 465 Citizens Utilities
702 374 590 UUNET - Commercial IP service
1239 365 845 Sprint
6198 356 499 BellSouth Network Solutions,
6517 331 358 Yipes Communications, Inc.
15270 330 357 PaeTec.net -a division of Pae
22773 310 602 Cox Communications, Inc.
13609 290 332 Choice One Communications Inc
701 276 961 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:43 12:1630 13:1 15:11 16:3
17:3 18:4 20:42 24:716 25:1 30:2
32:69 38:185 40:54 44:3 47:3 52:4
55:1 56:3 57:34 58:112 59:149 60:176
61:816 62:779 63:1891 64:2940 65:2145 66:2999
67:589 68:696 69:1345 70:267 71:41 72:562
73:16 80:690 81:593 82:498 83:350 84:337
85:404 86:252 87:127 88:16 125:146 128:149
129:170 130:101 131:307 132:33 133:1 134:151
135:45 136:170 137:65 138:179 139:92 140:446
141:136 142:402 143:146 144:228 145:39 146:311
147:134 148:348 149:187 150:113 151:71 152:115
153:98 154:6 155:183 156:90 157:119 158:152
159:173 160:87 161:68 162:247 163:174 164:167
165:170 166:147 167:237 168:473 169:141 170:309
171:12 192:5753 193:3348 194:2459 195:1706 196:738
198:3894 199:3270 200:4173 201:553 202:6389 203:6668
204:3822 205:2086 206:2414 207:2915 208:2015 209:3449
210:1837 211:794 212:1240 213:1403 214:317 215:40
216:3827 217:1149 218:232 219:134 220:638 221:331
222:141
End of report