Routing Table Report 04:00 +10GMT Thu 01 Dec, 2005
Analysis Summary
----------------
BGP routing table entries examined: 175959
Prefixes after maximum aggregation: 99100
Unique aggregates announced to Internet: 85225
Total ASes present in the Internet Routing Table: 21027
Origin-only ASes present in the Internet Routing Table: 18299
Origin ASes announcing only one prefix: 8663
Transit ASes present in the Internet Routing Table: 2728
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 29
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: 1469150848
Equivalent to 87 /8s, 145 /16s and 118 /24s
Percentage of available address space announced: 39.6
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84410
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36855
Total APNIC prefixes after maximum aggregation: 15709
Prefixes being announced from the APNIC address blocks: 34596
Unique aggregates announced from the APNIC address blocks: 16915
APNIC Region origin ASes present in the Internet Routing Table: 2418
APNIC Region origin ASes announcing only one prefix: 700
APNIC Region transit ASes present in the Internet Routing Table: 363
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 207737280
Equivalent to 12 /8s, 97 /16s and 209 /24s
Percentage of available APNIC address space announced: 77.1
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, 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: 92932
Total ARIN prefixes after maximum aggregation: 56007
Prefixes being announced from the ARIN address blocks: 72420
Unique aggregates announced from the ARIN address blocks: 27539
ARIN Region origin ASes present in the Internet Routing Table: 10376
ARIN Region origin ASes announcing only one prefix: 3846
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: 278259968
Equivalent to 16 /8s, 149 /16s and 233 /24s
Percentage of available ARIN address space announced: 69.1
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: 34395
Total RIPE prefixes after maximum aggregation: 23219
Prefixes being announced from the RIPE address blocks: 31332
Unique aggregates announced from the RIPE address blocks: 21030
RIPE Region origin ASes present in the Internet Routing Table: 7363
RIPE Region origin ASes announcing only one prefix: 3861
RIPE Region transit ASes present in the Internet Routing Table: 1216
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 225737728
Equivalent to 13 /8s, 116 /16s and 124 /24s
Percentage of available RIPE address space announced: 67.3
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: 9995
Total LACNIC prefixes after maximum aggregation: 3311
Prefixes being announced from the LACNIC address blocks: 8282
Unique aggregates announced from the LACNIC address blocks: 4819
LACNIC Region origin ASes present in the Internet Routing Table: 653
LACNIC Region origin ASes announcing only one prefix: 209
LACNIC Region transit ASes present in the Internet Routing Table: 121
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 29
Number of LACNIC addresses announced to Internet: 22959616
Equivalent to 1 /8s, 94 /16s and 86 /24s
Percentage of available LACNIC address space announced: 34.2
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: 1776
Total AfriNIC prefixes after maximum aggregation: 854
Prefixes being announced from the AfriNIC address blocks: 1157
Unique aggregates announced from the AfriNIC address blocks: 836
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: 21
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2877184
Equivalent to 0 /8s, 43 /16s and 231 /24s
Percentage of available AfriNIC address space announced: 8.6
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 1017 6348 217 CHINANET-BACKBONE
9583 830 77 12 Sify Limited
4755 756 259 69 Videsh Sanchar Nigam Ltd. Aut
1221 727 1373 512 Telstra Pty Ltd
4766 652 3927 287 Korea Telecom (KIX)
7545 511 108 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
17488 434 26 11 Hathway IP Over Cable Interne
9498 409 216 65 BHARTI BT INTERNET LTD.
9443 394 87 80 Primus Telecommunications
4802 342 73 157 Wantree Development
2907 340 1764 317 SINET Japan
9929 331 217 48 China Netcom Corp.
17557 331 24 161 Pakistan Telecom
18302 330 152 25 SK Global co., Ltd
7474 327 226 225 SingTel Optus Pty Ltd
17974 282 65 16 PT TELEKOMUNIKASI INDONESIA
9837 273 79 175 Powertel Ltd
18101 271 68 19 Reliance Infocom Ltd Internet
9800 254 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1470 6314 963 AT&T WorldNet Services
4323 1189 706 233 Time Warner Telecom
174 1076 5846 995 Cogent Communications
721 1056 21938 308 DLA Systems Automation Center
701 986 8133 829 UUNET Technologies, Inc.
6197 962 407 497 BellSouth Network Solutions,
2386 915 530 686 AT&T Data Communications Serv
18566 878 240 7 Covad Communications
1239 845 2801 599 Sprint
209 657 3607 520 Qwest
20115 653 531 345 Charter Communications
11492 635 81 10 Cable One
852 574 1093 382 Telus Advanced Communications
19262 565 1594 137 Verizon Global Networks
22773 565 1468 25 Cox Communications, Inc.
19916 563 49 54 OLM LLC
855 559 247 64 Canadian Research Network
3602 532 126 103 Sprint Canada, Inc.
3356 514 10633 401 Level 3 Communications, LLC
6478 502 1432 280 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 614 1959 482 UUNET - Commercial IP service
3301 303 1085 289 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 271 475 266 COLT Telecommunications
680 245 2040 239 DFN-IP service G-WiN
8708 236 274 217 Romania Data Systems S.A.
3246 230 477 223 Song Networks
6746 200 51 171 Dynamic Network Technologies,
1257 194 712 170 SWIPnet Swedish IP Network
3269 182 1829 68 TELECOM ITALIA
5515 180 840 127 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
5400 166 317 136 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
8866 160 37 9 Bulgarian Telecommunication C
3300 159 169 93 AUCS Communications Services
24863 151 37 6 LINKdotNET AS number
3215 150 1275 81 France Telecom Transpac
12479 150 322 5 Uni2 Autonomous System
25186 148 211 104 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 397 709 170 UniNet S.A. de C.V.
16814 295 18 7 NSS, S.A.
11172 288 105 73 Servicios Alestra S.A de C.V
11664 219 22 28 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 179 128 7 VTR PUNTO NET S.A.
6147 158 118 21 Telefonica Del Peru
7303 152 72 19 Telecom Argentina Stet-France
13999 138 52 9 Mega Cable S.A. de C.V.
11556 132 64 3 Cable-Wireless Panama
19169 127 8 20 Telconet
10481 121 48 8 Prima S.A.
18822 114 8 11 TELEFONICA MANQUEHUE
6503 113 132 74 AVANTEL, S.A.
5639 112 12 9 Telecommunications Services o
21826 112 14 18 INTERCABLE
6505 107 88 80 Global One Communicaoes Ltda
11311 99 8 10 Sinectis S.A.
4270 94 17 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 271 812 229 The Internet Solution
8452 146 44 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
2905 74 155 67 The Internetworking Company o
6713 67 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 59 34 6 RAYA Telecom - Egypt
15475 57 84 4 Nile Online
5713 38 151 34 Telkom SA Ltd
33774 33 4 24 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
23889 23 5 9 MAURITIUS TELECOM
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
21491 17 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1189 956 Time Warner Telecom
18566 878 871 Covad Communications
9583 830 818 Sify Limited
4134 1017 800 CHINANET-BACKBONE
721 1056 748 DLA Systems Automation Center
4755 756 687 Videsh Sanchar Nigam Ltd. Aut
11492 635 625 Cable One
22773 565 540 Cox Communications, Inc.
19916 563 509 OLM LLC
855 559 495 Canadian Research Network
6197 962 465 BellSouth Network Solutions,
5668 476 450 CenturyTel Internet Holdings,
7545 511 440 TPG Internet Pty Ltd
3602 532 429 Sprint Canada, Inc.
19262 565 428 Verizon Global Networks
17488 434 423 Hathway IP Over Cable Interne
17676 470 370 Softbank BB Corp.
4766 652 365 Korea Telecom (KIX)
6467 405 357 E.Spire Communications, Inc.
9498 409 344 BHARTI BT INTERNET LTD.
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
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
24406 UNALLOCATED 203.119.26.0/24 4808 CNCGROUP IP network:
24406 UNALLOCATED 203.119.27.0/24 4808 CNCGROUP IP network:
24406 UNALLOCATED 203.119.29.0/24 4808 CNCGROUP IP network:
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 /11:17 /12:84
/13:190 /14:343 /15:668 /16:8608 /17:2902 /18:4895
/19:11063 /20:12219 /21:10243 /22:13510 /23:14621 /24:95619
/25:349 /26:292 /27:205 /28:25 /29:12 /30:30
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 862 878 Covad Communications
6197 783 962 BellSouth Network Solutions,
7018 721 1470 AT&T WorldNet Services
9583 653 830 Sify Limited
2386 641 915 AT&T Data Communications Serv
11492 625 635 Cable One
4323 568 1189 Time Warner Telecom
19916 557 563 OLM LLC
4766 457 652 Korea Telecom (KIX)
855 432 559 Canadian Research Network
7011 399 462 Citizens Utilities
702 393 614 UUNET - Commercial IP service
5668 376 476 CenturyTel Internet Holdings,
1239 365 845 Sprint
6198 355 493 BellSouth Network Solutions,
6517 322 347 Yipes Communications, Inc.
15270 319 346 PaeTec.net -a division of Pae
18302 299 330 SK Global co., Ltd
13609 298 340 Choice One Communications Inc
22773 291 565 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:38 12:1626 13:1 15:11 16:3
17:3 18:3 20:42 24:676 30:2 32:64
38:185 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:87 59:95 60:159 61:806
62:797 63:1898 64:2916 65:2131 66:2896 67:640
68:686 69:1329 70:240 71:36 72:473 80:692
81:582 82:479 83:324 84:335 85:373 86:214
87:103 125:130 128:149 129:169 130:99 131:304
132:35 133:1 134:151 135:45 136:167 137:68
138:174 139:75 140:445 141:146 142:402 143:145
144:219 145:34 146:304 147:131 148:271 149:186
150:109 151:71 152:111 153:94 154:5 155:153
156:88 157:118 158:147 159:176 160:85 161:76
162:241 163:172 164:190 165:184 166:146 167:243
168:461 169:143 170:312 171:12 192:5763 193:3365
194:2438 195:1638 196:716 198:3918 199:3264 200:4303
201:464 202:6298 203:6594 204:3841 205:2081 206:2433
207:2932 208:2030 209:3452 210:1777 211:794 212:1217
213:1381 214:313 215:42 216:3827 217:1164 218:220
219:128 220:540 221:319 222:129
End of report
Routing Table Report 04:00 +10GMT Wed 30 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 175900
Prefixes after maximum aggregation: 99149
Unique aggregates announced to Internet: 83192
Total ASes present in the Internet Routing Table: 21014
Origin-only ASes present in the Internet Routing Table: 18286
Origin ASes announcing only one prefix: 8659
Transit ASes present in the Internet Routing Table: 2728
Transit-only ASes present in the Internet Routing Table: 72
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: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1471028096
Equivalent to 87 /8s, 174 /16s and 27 /24s
Percentage of available address space announced: 39.7
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84426
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36803
Total APNIC prefixes after maximum aggregation: 15840
Prefixes being announced from the APNIC address blocks: 34559
Unique aggregates announced from the APNIC address blocks: 16858
APNIC Region origin ASes present in the Internet Routing Table: 2415
APNIC Region origin ASes announcing only one prefix: 698
APNIC Region transit ASes present in the Internet Routing Table: 365
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 207713472
Equivalent to 12 /8s, 97 /16s and 116 /24s
Percentage of available APNIC address space announced: 77.1
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, 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: 92990
Total ARIN prefixes after maximum aggregation: 55949
Prefixes being announced from the ARIN address blocks: 72495
Unique aggregates announced from the ARIN address blocks: 25605
ARIN Region origin ASes present in the Internet Routing Table: 10375
ARIN Region origin ASes announcing only one prefix: 3849
ARIN Region transit ASes present in the Internet Routing Table: 964
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 280378624
Equivalent to 16 /8s, 182 /16s and 61 /24s
Percentage of available ARIN address space announced: 69.6
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: 34348
Total RIPE prefixes after maximum aggregation: 23204
Prefixes being announced from the RIPE address blocks: 31278
Unique aggregates announced from the RIPE address blocks: 21007
RIPE Region origin ASes present in the Internet Routing Table: 7355
RIPE Region origin ASes announcing only one prefix: 3858
RIPE Region transit ASes present in the Internet Routing Table: 1212
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 225663232
Equivalent to 13 /8s, 115 /16s and 89 /24s
Percentage of available RIPE address space announced: 67.3
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: 9978
Total LACNIC prefixes after maximum aggregation: 3305
Prefixes being announced from the LACNIC address blocks: 8269
Unique aggregates announced from the LACNIC address blocks: 4807
LACNIC Region origin ASes present in the Internet Routing Table: 652
LACNIC Region origin ASes announcing only one prefix: 208
LACNIC Region transit ASes present in the Internet Routing Table: 122
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22938624
Equivalent to 1 /8s, 94 /16s and 4 /24s
Percentage of available LACNIC address space announced: 34.2
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: 1775
Total AfriNIC prefixes after maximum aggregation: 851
Prefixes being announced from the AfriNIC address blocks: 1160
Unique aggregates announced from the AfriNIC address blocks: 835
AfriNIC Region origin ASes present in the Internet Routing Table: 144
AfriNIC Region origin ASes announcing only one prefix: 46
AfriNIC Region transit ASes present in the Internet Routing Table: 22
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2875136
Equivalent to 0 /8s, 43 /16s and 223 /24s
Percentage of available AfriNIC address space announced: 8.6
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 1018 6348 217 CHINANET-BACKBONE
9583 832 77 12 Sify Limited
4755 755 259 69 Videsh Sanchar Nigam Ltd. Aut
1221 724 1342 514 Telstra Pty Ltd
4766 651 3927 287 Korea Telecom (KIX)
7545 511 108 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
17488 434 26 11 Hathway IP Over Cable Interne
9498 409 216 66 BHARTI BT INTERNET LTD.
9443 394 87 80 Primus Telecommunications
4802 341 73 156 Wantree Development
2907 339 1764 316 SINET Japan
17557 331 24 161 Pakistan Telecom
9929 330 217 48 China Netcom Corp.
7474 329 258 227 SingTel Optus Pty Ltd
18302 315 142 169 SK Global co., Ltd
9837 275 79 176 Powertel Ltd
17974 270 46 12 PT TELEKOMUNIKASI INDONESIA
18101 270 68 19 Reliance Infocom Ltd Internet
9800 257 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1464 6313 957 AT&T WorldNet Services
4323 1189 706 233 Time Warner Telecom
174 1075 5846 994 Cogent Communications
721 1065 21938 308 DLA Systems Automation Center
701 987 8134 831 UUNET Technologies, Inc.
6197 961 407 502 BellSouth Network Solutions,
2386 915 528 688 AT&T Data Communications Serv
18566 878 240 7 Covad Communications
1239 844 2801 598 Sprint
209 657 3607 520 Qwest
20115 654 531 345 Charter Communications
11492 632 81 10 Cable One
852 574 1093 382 Telus Advanced Communications
19262 565 1594 137 Verizon Global Networks
855 563 247 64 Canadian Research Network
19916 563 49 54 OLM LLC
22773 561 1468 25 Cox Communications, Inc.
3602 528 126 101 Sprint Canada, Inc.
3356 514 10633 401 Level 3 Communications, LLC
6478 502 1432 280 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 615 1960 483 UUNET - Commercial IP service
3301 303 1085 289 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 271 475 266 COLT Telecommunications
680 245 2040 239 DFN-IP service G-WiN
8708 237 274 218 Romania Data Systems S.A.
3246 230 477 223 Song Networks
6746 200 51 171 Dynamic Network Technologies,
1257 194 712 170 SWIPnet Swedish IP Network
3269 182 1829 68 TELECOM ITALIA
5515 180 840 127 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
5400 166 317 136 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 160 170 94 AUCS Communications Services
8866 160 37 9 Bulgarian Telecommunication C
24863 151 37 6 LINKdotNET AS number
3215 150 1275 81 France Telecom Transpac
12479 150 322 5 Uni2 Autonomous System
25186 147 209 103 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 396 709 169 UniNet S.A. de C.V.
16814 295 18 7 NSS, S.A.
11172 285 104 70 Servicios Alestra S.A de C.V
11664 219 22 28 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 180 128 8 VTR PUNTO NET S.A.
6147 158 118 21 Telefonica Del Peru
7303 152 72 19 Telecom Argentina Stet-France
13999 140 52 9 Mega Cable S.A. de C.V.
11556 130 64 3 Cable-Wireless Panama
19169 127 8 20 Telconet
10481 121 48 8 Prima S.A.
18822 114 8 11 TELEFONICA MANQUEHUE
21826 112 14 18 INTERCABLE
5639 111 12 9 Telecommunications Services o
6503 111 148 72 AVANTEL, S.A.
6505 107 88 80 Global One Communicaoes Ltda
11311 99 8 10 Sinectis S.A.
14522 94 12 8 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 270 812 229 The Internet Solution
8452 145 44 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
2905 74 155 67 The Internetworking Company o
6713 67 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 59 34 6 RAYA Telecom - Egypt
15475 56 84 4 Nile Online
5713 38 151 34 Telkom SA Ltd
33774 33 4 24 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
23889 23 5 9 MAURITIUS TELECOM
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
21491 17 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1189 956 Time Warner Telecom
18566 878 871 Covad Communications
9583 832 820 Sify Limited
4134 1018 801 CHINANET-BACKBONE
721 1065 757 DLA Systems Automation Center
4755 755 686 Videsh Sanchar Nigam Ltd. Aut
11492 632 622 Cable One
22773 561 536 Cox Communications, Inc.
19916 563 509 OLM LLC
855 563 499 Canadian Research Network
6197 961 459 BellSouth Network Solutions,
5668 476 450 CenturyTel Internet Holdings,
7545 511 440 TPG Internet Pty Ltd
19262 565 428 Verizon Global Networks
3602 528 427 Sprint Canada, Inc.
17488 434 423 Hathway IP Over Cable Interne
17676 470 370 Softbank BB Corp.
4766 651 364 Korea Telecom (KIX)
6467 401 353 E.Spire Communications, Inc.
9498 409 343 BHARTI BT INTERNET LTD.
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
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
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 /8:20 /9:5 /10:8 /11:17 /12:84
/13:190 /14:343 /15:668 /16:8607 /17:2898 /18:4887
/19:11056 /20:12208 /21:10244 /22:13502 /23:14618 /24:95601
/25:348 /26:295 /27:202 /28:25 /29:12 /30:29
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 862 878 Covad Communications
6197 782 961 BellSouth Network Solutions,
7018 720 1464 AT&T WorldNet Services
9583 655 832 Sify Limited
2386 642 915 AT&T Data Communications Serv
11492 624 632 Cable One
4323 569 1189 Time Warner Telecom
19916 557 563 OLM LLC
4766 456 651 Korea Telecom (KIX)
855 436 563 Canadian Research Network
7011 399 462 Citizens Utilities
702 394 615 UUNET - Commercial IP service
5668 376 476 CenturyTel Internet Holdings,
1239 365 844 Sprint
6198 355 493 BellSouth Network Solutions,
6517 321 346 Yipes Communications, Inc.
15270 318 345 PaeTec.net -a division of Pae
18302 299 315 SK Global co., Ltd
13609 298 340 Choice One Communications Inc
701 286 987 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:38 12:1622 13:1 15:11 16:3
17:3 18:3 20:42 24:677 30:2 32:64
38:184 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:89 59:95 60:155 61:803
62:800 63:1898 64:2915 65:2129 66:2946 67:639
68:685 69:1314 70:240 71:36 72:471 80:692
81:583 82:482 83:322 84:334 85:372 86:211
87:103 125:128 128:150 129:170 130:98 131:301
132:33 133:1 134:151 135:45 136:167 137:69
138:174 139:75 140:444 141:146 142:402 143:144
144:218 145:34 146:304 147:131 148:271 149:186
150:108 151:73 152:111 153:94 154:5 155:152
156:87 157:118 158:147 159:175 160:85 161:71
162:241 163:160 164:189 165:185 166:146 167:244
168:459 169:143 170:313 171:12 192:5763 193:3357
194:2436 195:1627 196:720 198:3916 199:3249 200:4303
201:457 202:6290 203:6594 204:3837 205:2081 206:2426
207:2928 208:2032 209:3510 210:1778 211:798 212:1205
213:1377 214:315 215:39 216:3849 217:1158 218:221
219:128 220:535 221:320 222:122
End of report
Routing Table Report 04:00 +10GMT Tue 29 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 175776
Prefixes after maximum aggregation: 99124
Unique aggregates announced to Internet: 84984
Total ASes present in the Internet Routing Table: 20993
Origin-only ASes present in the Internet Routing Table: 18266
Origin ASes announcing only one prefix: 8642
Transit ASes present in the Internet Routing Table: 2727
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 25
Prefixes from unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1466022272
Equivalent to 87 /8s, 97 /16s and 185 /24s
Percentage of available address space announced: 39.6
Percentage of allocated address space announced: 59.6
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84323
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36857
Total APNIC prefixes after maximum aggregation: 15846
Prefixes being announced from the APNIC address blocks: 34541
Unique aggregates announced from the APNIC address blocks: 16817
APNIC Region origin ASes present in the Internet Routing Table: 2412
APNIC Region origin ASes announcing only one prefix: 698
APNIC Region transit ASes present in the Internet Routing Table: 365
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 207811520
Equivalent to 12 /8s, 98 /16s and 243 /24s
Percentage of available APNIC address space announced: 77.1
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, 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: 92856
Total ARIN prefixes after maximum aggregation: 55942
Prefixes being announced from the ARIN address blocks: 72354
Unique aggregates announced from the ARIN address blocks: 27494
ARIN Region origin ASes present in the Internet Routing Table: 10367
ARIN Region origin ASes announcing only one prefix: 3845
ARIN Region transit ASes present in the Internet Routing Table: 965
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 276893184
Equivalent to 16 /8s, 129 /16s and 14 /24s
Percentage of available ARIN address space announced: 68.8
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: 34318
Total RIPE prefixes after maximum aggregation: 23183
Prefixes being announced from the RIPE address blocks: 31256
Unique aggregates announced from the RIPE address blocks: 21000
RIPE Region origin ASes present in the Internet Routing Table: 7344
RIPE Region origin ASes announcing only one prefix: 3846
RIPE Region transit ASes present in the Internet Routing Table: 1210
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 225619968
Equivalent to 13 /8s, 114 /16s and 176 /24s
Percentage of available RIPE address space announced: 67.2
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: 9958
Total LACNIC prefixes after maximum aggregation: 3299
Prefixes being announced from the LACNIC address blocks: 8263
Unique aggregates announced from the LACNIC address blocks: 4771
LACNIC Region origin ASes present in the Internet Routing Table: 651
LACNIC Region origin ASes announcing only one prefix: 208
LACNIC Region transit ASes present in the Internet Routing Table: 122
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22934528
Equivalent to 1 /8s, 93 /16s and 244 /24s
Percentage of available LACNIC address space announced: 34.2
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: 1780
Total AfriNIC prefixes after maximum aggregation: 854
Prefixes being announced from the AfriNIC address blocks: 1162
Unique aggregates announced from the AfriNIC address blocks: 835
AfriNIC Region origin ASes present in the Internet Routing Table: 144
AfriNIC Region origin ASes announcing only one prefix: 45
AfriNIC Region transit ASes present in the Internet Routing Table: 21
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2875136
Equivalent to 0 /8s, 43 /16s and 223 /24s
Percentage of available AfriNIC address space announced: 8.6
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 1017 6348 217 CHINANET-BACKBONE
9583 830 77 12 Sify Limited
4755 755 259 69 Videsh Sanchar Nigam Ltd. Aut
1221 740 1342 512 Telstra Pty Ltd
4766 651 3927 287 Korea Telecom (KIX)
7545 511 108 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
17488 434 26 11 Hathway IP Over Cable Interne
9498 413 216 66 BHARTI BT INTERNET LTD.
9443 394 87 80 Primus Telecommunications
4802 341 73 156 Wantree Development
2907 340 1764 317 SINET Japan
17557 331 24 161 Pakistan Telecom
9929 330 217 48 China Netcom Corp.
7474 329 258 227 SingTel Optus Pty Ltd
18302 315 142 169 SK Global co., Ltd
17974 279 65 16 PT TELEKOMUNIKASI INDONESIA
1659 278 956 35 Tiawan Academic Network (TANe
9837 275 79 176 Powertel Ltd
18101 270 68 19 Reliance Infocom Ltd Internet
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1470 6316 963 AT&T WorldNet Services
4323 1191 706 233 Time Warner Telecom
174 1076 5846 995 Cogent Communications
721 1070 21938 308 DLA Systems Automation Center
701 984 8134 830 UUNET Technologies, Inc.
6197 963 407 496 BellSouth Network Solutions,
2386 914 528 687 AT&T Data Communications Serv
18566 878 240 7 Covad Communications
1239 845 2801 599 Sprint
209 657 3607 520 Qwest
20115 655 532 345 Charter Communications
11492 631 81 10 Cable One
852 574 1093 382 Telus Advanced Communications
855 564 247 64 Canadian Research Network
19262 563 1593 135 Verizon Global Networks
19916 563 49 54 OLM LLC
22773 557 1468 25 Cox Communications, Inc.
3602 540 126 103 Sprint Canada, Inc.
3356 515 10633 402 Level 3 Communications, LLC
6478 495 1427 276 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 614 1960 482 UUNET - Commercial IP service
3301 303 1085 289 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 271 475 266 COLT Telecommunications
680 245 2040 239 DFN-IP service G-WiN
8708 234 274 215 Romania Data Systems S.A.
3246 230 477 223 Song Networks
6746 202 51 173 Dynamic Network Technologies,
1257 195 712 171 SWIPnet Swedish IP Network
3269 182 1829 68 TELECOM ITALIA
5515 180 840 127 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
5400 166 317 136 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 160 170 94 AUCS Communications Services
8866 160 37 9 Bulgarian Telecommunication C
12479 151 322 5 Uni2 Autonomous System
24863 151 37 6 LINKdotNET AS number
3215 150 1275 81 France Telecom Transpac
25186 148 211 104 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 397 709 170 UniNet S.A. de C.V.
16814 295 18 7 NSS, S.A.
11172 283 104 69 Servicios Alestra S.A de C.V
11664 222 22 14 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 180 128 8 VTR PUNTO NET S.A.
6147 158 118 21 Telefonica Del Peru
7303 152 72 19 Telecom Argentina Stet-France
13999 142 52 9 Mega Cable S.A. de C.V.
11556 130 64 3 Cable-Wireless Panama
19169 126 8 23 Telconet
10481 121 48 8 Prima S.A.
18822 114 8 11 TELEFONICA MANQUEHUE
6503 113 148 74 AVANTEL, S.A.
21826 112 14 18 INTERCABLE
6505 107 88 80 Global One Communicaoes Ltda
5639 99 12 9 Telecommunications Services o
11311 99 8 10 Sinectis S.A.
14522 94 12 8 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 270 812 229 The Internet Solution
8452 147 44 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
2905 74 155 67 The Internetworking Company o
6713 67 71 10 Itissalat Al-MAGHRIB
24835 59 34 6 RAYA Telecom - Egypt
20928 57 16 2 Noor Advanced Technologies AS
15475 56 84 4 Nile Online
5713 38 151 34 Telkom SA Ltd
33774 33 4 24 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
23889 23 5 9 MAURITIUS TELECOM
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
12455 18 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 1191 958 Time Warner Telecom
18566 878 871 Covad Communications
9583 830 818 Sify Limited
4134 1017 800 CHINANET-BACKBONE
721 1070 762 DLA Systems Automation Center
4755 755 686 Videsh Sanchar Nigam Ltd. Aut
11492 631 621 Cable One
22773 557 532 Cox Communications, Inc.
19916 563 509 OLM LLC
855 564 500 Canadian Research Network
6197 963 467 BellSouth Network Solutions,
5668 476 450 CenturyTel Internet Holdings,
7545 511 440 TPG Internet Pty Ltd
3602 540 437 Sprint Canada, Inc.
19262 563 428 Verizon Global Networks
17488 434 423 Hathway IP Over Cable Interne
17676 470 370 Softbank BB Corp.
4766 651 364 Korea Telecom (KIX)
6467 402 354 E.Spire Communications, Inc.
9498 413 347 BHARTI BT INTERNET LTD.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
38976 UNALLOCATED 62.192.224.0/19 21166 Satgate autonomous s
38976 UNALLOCATED 62.192.232.0/24 21166 Satgate autonomous s
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
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 /11:17 /12:82
/13:189 /14:343 /15:666 /16:8606 /17:2898 /18:4887
/19:11058 /20:12202 /21:10233 /22:13510 /23:14619 /24:95449
/25:348 /26:299 /27:202 /28:26 /29:12 /30:59
/31:3 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 862 878 Covad Communications
6197 785 963 BellSouth Network Solutions,
7018 723 1470 AT&T WorldNet Services
9583 653 830 Sify Limited
2386 641 914 AT&T Data Communications Serv
11492 623 631 Cable One
4323 569 1191 Time Warner Telecom
19916 557 563 OLM LLC
4766 456 651 Korea Telecom (KIX)
855 437 564 Canadian Research Network
7011 399 461 Citizens Utilities
702 393 614 UUNET - Commercial IP service
5668 376 476 CenturyTel Internet Holdings,
1239 365 845 Sprint
6198 355 493 BellSouth Network Solutions,
6517 321 346 Yipes Communications, Inc.
15270 317 344 PaeTec.net -a division of Pae
18302 299 315 SK Global co., Ltd
13609 298 340 Choice One Communications Inc
701 284 984 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:38 12:1620 13:1 15:11 16:3
17:3 18:3 20:42 24:679 30:2 32:64
38:184 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:95 59:95 60:155 61:804
62:799 63:1897 64:2916 65:2126 66:2895 67:640
68:686 69:1310 70:238 71:36 72:470 80:705
81:583 82:476 83:322 84:314 85:373 86:207
87:100 125:127 128:144 129:170 130:99 131:301
132:34 133:1 134:151 135:45 136:167 137:71
138:174 139:75 140:473 141:146 142:401 143:144
144:218 145:34 146:304 147:131 148:271 149:190
150:108 151:73 152:111 153:94 154:5 155:152
156:84 157:118 158:146 159:176 160:85 161:76
162:241 163:159 164:185 165:177 166:144 167:245
168:462 169:142 170:312 171:12 192:5765 193:3355
194:2435 195:1637 196:721 198:3915 199:3258 200:4300
201:452 202:6241 203:6588 204:3838 205:2091 206:2439
207:2927 208:2031 209:3451 210:1782 211:797 212:1206
213:1379 214:316 215:42 216:3819 217:1155 218:222
219:127 220:538 221:317 222:129
End of report
Routing Table Report 04:00 +10GMT Mon 28 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 175668
Prefixes after maximum aggregation: 99051
Unique aggregates announced to Internet: 84988
Total ASes present in the Internet Routing Table: 20976
Origin-only ASes present in the Internet Routing Table: 18245
Origin ASes announcing only one prefix: 8636
Transit ASes present in the Internet Routing Table: 2731
Transit-only ASes present in the Internet Routing Table: 74
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: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1465039744
Equivalent to 87 /8s, 82 /16s and 187 /24s
Percentage of available address space announced: 39.5
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84236
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36738
Total APNIC prefixes after maximum aggregation: 15831
Prefixes being announced from the APNIC address blocks: 34494
Unique aggregates announced from the APNIC address blocks: 16851
APNIC Region origin ASes present in the Internet Routing Table: 2409
APNIC Region origin ASes announcing only one prefix: 699
APNIC Region transit ASes present in the Internet Routing Table: 365
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 207811264
Equivalent to 12 /8s, 98 /16s and 242 /24s
Percentage of available APNIC address space announced: 77.1
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, 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: 92832
Total ARIN prefixes after maximum aggregation: 55912
Prefixes being announced from the ARIN address blocks: 72334
Unique aggregates announced from the ARIN address blocks: 27488
ARIN Region origin ASes present in the Internet Routing Table: 10363
ARIN Region origin ASes announcing only one prefix: 3844
ARIN Region transit ASes present in the Internet Routing Table: 966
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 276894464
Equivalent to 16 /8s, 129 /16s and 19 /24s
Percentage of available ARIN address space announced: 68.8
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: 34338
Total RIPE prefixes after maximum aggregation: 23165
Prefixes being announced from the RIPE address blocks: 31294
Unique aggregates announced from the RIPE address blocks: 20980
RIPE Region origin ASes present in the Internet Routing Table: 7336
RIPE Region origin ASes announcing only one prefix: 3839
RIPE Region transit ASes present in the Internet Routing Table: 1212
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 224968448
Equivalent to 13 /8s, 104 /16s and 191 /24s
Percentage of available RIPE address space announced: 67.0
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: 9957
Total LACNIC prefixes after maximum aggregation: 3289
Prefixes being announced from the LACNIC address blocks: 8266
Unique aggregates announced from the LACNIC address blocks: 4777
LACNIC Region origin ASes present in the Internet Routing Table: 651
LACNIC Region origin ASes announcing only one prefix: 208
LACNIC Region transit ASes present in the Internet Routing Table: 124
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22936832
Equivalent to 1 /8s, 93 /16s and 253 /24s
Percentage of available LACNIC address space announced: 34.2
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: 1796
Total AfriNIC prefixes after maximum aggregation: 854
Prefixes being announced from the AfriNIC address blocks: 1163
Unique aggregates announced from the AfriNIC address blocks: 835
AfriNIC Region origin ASes present in the Internet Routing Table: 143
AfriNIC Region origin ASes announcing only one prefix: 46
AfriNIC Region transit ASes present in the Internet Routing Table: 22
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2875136
Equivalent to 0 /8s, 43 /16s and 223 /24s
Percentage of available AfriNIC address space announced: 8.6
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 1017 6348 217 CHINANET-BACKBONE
9583 830 77 12 Sify Limited
4755 754 259 69 Videsh Sanchar Nigam Ltd. Aut
1221 742 1342 514 Telstra Pty Ltd
4766 651 3927 287 Korea Telecom (KIX)
7545 511 108 70 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9498 411 216 66 BHARTI BT INTERNET LTD.
9443 394 87 80 Primus Telecommunications
17488 370 22 10 Hathway IP Over Cable Interne
4802 348 74 160 Wantree Development
2907 340 1764 317 SINET Japan
17557 331 24 161 Pakistan Telecom
9929 330 217 48 China Netcom Corp.
7474 329 258 227 SingTel Optus Pty Ltd
18302 314 142 168 SK Global co., Ltd
17974 282 65 16 PT TELEKOMUNIKASI INDONESIA
9837 276 79 177 Powertel Ltd
18101 270 68 19 Reliance Infocom Ltd Internet
9800 257 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1469 6316 965 AT&T WorldNet Services
4323 1190 706 233 Time Warner Telecom
174 1078 5847 1000 Cogent Communications
721 1068 21938 308 DLA Systems Automation Center
701 985 8134 830 UUNET Technologies, Inc.
6197 963 407 496 BellSouth Network Solutions,
2386 914 528 687 AT&T Data Communications Serv
18566 878 240 7 Covad Communications
1239 843 2801 597 Sprint
209 656 3607 520 Qwest
20115 655 532 345 Charter Communications
11492 630 81 10 Cable One
852 574 1093 382 Telus Advanced Communications
19262 563 1593 135 Verizon Global Networks
19916 563 49 54 OLM LLC
855 557 247 64 Canadian Research Network
22773 557 1468 25 Cox Communications, Inc.
3602 540 126 103 Sprint Canada, Inc.
3356 515 10633 402 Level 3 Communications, LLC
6478 495 1427 276 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 615 1960 483 UUNET - Commercial IP service
3301 303 1085 289 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 271 475 266 COLT Telecommunications
680 245 2040 239 DFN-IP service G-WiN
8708 233 272 215 Romania Data Systems S.A.
3246 230 477 223 Song Networks
6746 202 51 173 Dynamic Network Technologies,
1257 195 712 171 SWIPnet Swedish IP Network
3269 182 1829 68 TELECOM ITALIA
5515 182 840 128 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
5400 166 317 136 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 160 170 94 AUCS Communications Services
8866 159 37 9 Bulgarian Telecommunication C
24863 151 37 6 LINKdotNET AS number
3215 150 1275 81 France Telecom Transpac
12479 150 322 5 Uni2 Autonomous System
25186 148 211 104 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 397 709 170 UniNet S.A. de C.V.
16814 295 18 7 NSS, S.A.
11172 282 104 69 Servicios Alestra S.A de C.V
11664 222 22 14 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 180 128 8 VTR PUNTO NET S.A.
6147 158 118 21 Telefonica Del Peru
7303 152 72 19 Telecom Argentina Stet-France
13999 142 52 9 Mega Cable S.A. de C.V.
11556 130 64 3 Cable-Wireless Panama
19169 126 8 23 Telconet
10481 121 48 8 Prima S.A.
6503 113 148 74 AVANTEL, S.A.
18822 113 7 10 TELEFONICA MANQUEHUE
21826 112 14 18 INTERCABLE
6505 107 88 80 Global One Communicaoes Ltda
5639 99 12 9 Telecommunications Services o
11311 99 8 10 Sinectis S.A.
14522 94 12 8 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 272 812 229 The Internet Solution
8452 147 44 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
2905 76 163 69 The Internetworking Company o
6713 67 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 59 34 6 RAYA Telecom - Egypt
15475 56 84 4 Nile Online
5713 38 151 34 Telkom SA Ltd
12455 33 6 3 Jambonet Autonomous system
33774 33 4 24 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
23889 23 5 9 MAURITIUS TELECOM
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
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 1190 957 Time Warner Telecom
18566 878 871 Covad Communications
9583 830 818 Sify Limited
4134 1017 800 CHINANET-BACKBONE
721 1068 760 DLA Systems Automation Center
4755 754 685 Videsh Sanchar Nigam Ltd. Aut
11492 630 620 Cable One
22773 557 532 Cox Communications, Inc.
19916 563 509 OLM LLC
855 557 493 Canadian Research Network
6197 963 467 BellSouth Network Solutions,
5668 476 450 CenturyTel Internet Holdings,
7545 511 441 TPG Internet Pty Ltd
3602 540 437 Sprint Canada, Inc.
19262 563 428 Verizon Global Networks
17676 470 370 Softbank BB Corp.
4766 651 364 Korea Telecom (KIX)
17488 370 360 Hathway IP Over Cable Interne
6467 406 358 E.Spire Communications, Inc.
9498 411 345 BHARTI BT INTERNET LTD.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
38976 UNALLOCATED 62.192.224.0/19 21166 Satgate autonomous s
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
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 /11:17 /12:82
/13:188 /14:343 /15:666 /16:8603 /17:2897 /18:4886
/19:11045 /20:12198 /21:10229 /22:13499 /23:14631 /24:95411
/25:346 /26:288 /27:203 /28:23 /29:12 /30:37
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 862 878 Covad Communications
6197 785 963 BellSouth Network Solutions,
7018 722 1469 AT&T WorldNet Services
9583 653 830 Sify Limited
2386 641 914 AT&T Data Communications Serv
11492 622 630 Cable One
4323 569 1190 Time Warner Telecom
19916 557 563 OLM LLC
4766 456 651 Korea Telecom (KIX)
855 430 557 Canadian Research Network
702 394 615 UUNET - Commercial IP service
7011 381 432 Citizens Utilities
5668 376 476 CenturyTel Internet Holdings,
1239 365 843 Sprint
6198 355 493 BellSouth Network Solutions,
6517 321 346 Yipes Communications, Inc.
15270 317 344 PaeTec.net -a division of Pae
13609 298 340 Choice One Communications Inc
18302 298 314 SK Global co., Ltd
701 285 985 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:38 12:1618 13:1 15:11 16:3
17:3 18:3 20:42 24:680 30:2 32:64
38:183 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:96 59:95 60:155 61:804
62:801 63:1893 64:2912 65:2126 66:2894 67:636
68:685 69:1315 70:236 71:35 72:468 80:696
81:583 82:482 83:316 84:310 85:373 86:204
87:100 125:63 128:143 129:170 130:99 131:301
132:34 133:1 134:151 135:45 136:162 137:71
138:174 139:75 140:444 141:146 142:400 143:145
144:218 145:34 146:304 147:131 148:271 149:190
150:108 151:73 152:111 153:94 154:5 155:152
156:84 157:118 158:146 159:177 160:85 161:76
162:241 163:159 164:189 165:183 166:146 167:245
168:462 169:142 170:309 171:12 192:5758 193:3360
194:2438 195:1639 196:722 198:3917 199:3258 200:4301
201:453 202:6258 203:6596 204:3829 205:2099 206:2436
207:2922 208:2031 209:3450 210:1781 211:797 212:1219
213:1382 214:315 215:42 216:3844 217:1171 218:222
219:127 220:540 221:317 222:129
End of report
Routing Table Report 04:00 +10GMT Sun 27 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 175592
Prefixes after maximum aggregation: 99057
Unique aggregates announced to Internet: 84975
Total ASes present in the Internet Routing Table: 20971
Origin-only ASes present in the Internet Routing Table: 18246
Origin ASes announcing only one prefix: 8633
Transit ASes present in the Internet Routing Table: 2725
Transit-only ASes present in the Internet Routing Table: 74
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: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1465298816
Equivalent to 87 /8s, 86 /16s and 175 /24s
Percentage of available address space announced: 39.5
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84217
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36677
Total APNIC prefixes after maximum aggregation: 15842
Prefixes being announced from the APNIC address blocks: 34437
Unique aggregates announced from the APNIC address blocks: 16858
APNIC Region origin ASes present in the Internet Routing Table: 2407
APNIC Region origin ASes announcing only one prefix: 700
APNIC Region transit ASes present in the Internet Routing Table: 366
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 207801024
Equivalent to 12 /8s, 98 /16s and 202 /24s
Percentage of available APNIC address space announced: 77.1
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, 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: 92836
Total ARIN prefixes after maximum aggregation: 55918
Prefixes being announced from the ARIN address blocks: 72350
Unique aggregates announced from the ARIN address blocks: 27487
ARIN Region origin ASes present in the Internet Routing Table: 10368
ARIN Region origin ASes announcing only one prefix: 3848
ARIN Region transit ASes present in the Internet Routing Table: 964
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 276894208
Equivalent to 16 /8s, 129 /16s and 18 /24s
Percentage of available ARIN address space announced: 68.8
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: 34325
Total RIPE prefixes after maximum aggregation: 23163
Prefixes being announced from the RIPE address blocks: 31279
Unique aggregates announced from the RIPE address blocks: 20970
RIPE Region origin ASes present in the Internet Routing Table: 7331
RIPE Region origin ASes announcing only one prefix: 3834
RIPE Region transit ASes present in the Internet Routing Table: 1211
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 225044736
Equivalent to 13 /8s, 105 /16s and 233 /24s
Percentage of available RIPE address space announced: 67.1
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
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: 9951
Total LACNIC prefixes after maximum aggregation: 3284
Prefixes being announced from the LACNIC address blocks: 8252
Unique aggregates announced from the LACNIC address blocks: 4767
LACNIC Region origin ASes present in the Internet Routing Table: 650
LACNIC Region origin ASes announcing only one prefix: 208
LACNIC Region transit ASes present in the Internet Routing Table: 123
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22934016
Equivalent to 1 /8s, 93 /16s and 242 /24s
Percentage of available LACNIC address space announced: 34.2
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: 1796
Total AfriNIC prefixes after maximum aggregation: 850
Prefixes being announced from the AfriNIC address blocks: 1159
Unique aggregates announced from the AfriNIC address blocks: 835
AfriNIC Region origin ASes present in the Internet Routing Table: 141
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 19
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2875136
Equivalent to 0 /8s, 43 /16s and 223 /24s
Percentage of available AfriNIC address space announced: 8.6
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 1017 6348 217 CHINANET-BACKBONE
9583 830 77 12 Sify Limited
4755 753 259 69 Videsh Sanchar Nigam Ltd. Aut
1221 741 1342 513 Telstra Pty Ltd
4766 651 3927 287 Korea Telecom (KIX)
7545 511 108 70 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9498 411 216 66 BHARTI BT INTERNET LTD.
9443 394 87 80 Primus Telecommunications
17488 370 22 10 Hathway IP Over Cable Interne
4802 348 74 160 Wantree Development
2907 340 1764 317 SINET Japan
17557 331 24 161 Pakistan Telecom
9929 330 217 48 China Netcom Corp.
7474 329 258 227 SingTel Optus Pty Ltd
18302 313 142 168 SK Global co., Ltd
17974 281 65 16 PT TELEKOMUNIKASI INDONESIA
9837 276 79 177 Powertel Ltd
18101 270 68 19 Reliance Infocom Ltd Internet
9800 257 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1470 6316 963 AT&T WorldNet Services
4323 1191 706 233 Time Warner Telecom
174 1078 5847 1000 Cogent Communications
721 1069 21938 308 DLA Systems Automation Center
701 985 8134 830 UUNET Technologies, Inc.
6197 962 407 496 BellSouth Network Solutions,
2386 915 543 680 AT&T Data Communications Serv
18566 878 240 7 Covad Communications
1239 845 2801 599 Sprint
209 657 3607 520 Qwest
20115 655 532 345 Charter Communications
11492 629 81 10 Cable One
852 574 1093 382 Telus Advanced Communications
19262 563 1593 135 Verizon Global Networks
19916 563 49 54 OLM LLC
855 557 247 64 Canadian Research Network
22773 557 1468 25 Cox Communications, Inc.
3602 540 126 103 Sprint Canada, Inc.
3356 515 10633 402 Level 3 Communications, LLC
6478 495 1427 276 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 615 1960 483 UUNET - Commercial IP service
3301 304 1101 290 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 271 475 266 COLT Telecommunications
680 245 2040 239 DFN-IP service G-WiN
3246 230 477 223 Song Networks
8708 229 272 213 Romania Data Systems S.A.
6746 202 51 173 Dynamic Network Technologies,
1257 195 712 171 SWIPnet Swedish IP Network
3269 182 1829 68 TELECOM ITALIA
5515 182 840 128 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
5400 166 317 136 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 160 170 94 AUCS Communications Services
8866 159 37 9 Bulgarian Telecommunication C
3215 150 1275 81 France Telecom Transpac
12479 150 322 5 Uni2 Autonomous System
24863 150 37 6 LINKdotNET AS number
25186 148 211 104 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 394 709 167 UniNet S.A. de C.V.
16814 295 18 7 NSS, S.A.
11172 282 104 69 Servicios Alestra S.A de C.V
11664 222 22 14 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 180 128 8 VTR PUNTO NET S.A.
6147 158 118 21 Telefonica Del Peru
7303 152 72 19 Telecom Argentina Stet-France
13999 142 52 9 Mega Cable S.A. de C.V.
11556 130 64 3 Cable-Wireless Panama
19169 126 8 23 Telconet
10481 121 48 8 Prima S.A.
6503 113 148 74 AVANTEL, S.A.
18822 113 7 10 TELEFONICA MANQUEHUE
21826 112 14 18 INTERCABLE
5639 111 12 9 Telecommunications Services o
6505 107 88 80 Global One Communicaoes Ltda
11311 99 8 10 Sinectis S.A.
14522 94 12 8 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 272 812 229 The Internet Solution
8452 146 44 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
2905 76 163 69 The Internetworking Company o
6713 67 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 59 34 6 RAYA Telecom - Egypt
15475 56 84 4 Nile Online
5713 38 151 34 Telkom SA Ltd
12455 33 6 3 Jambonet Autonomous system
33774 33 4 24 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
23889 23 5 9 MAURITIUS TELECOM
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
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 1191 958 Time Warner Telecom
18566 878 871 Covad Communications
9583 830 818 Sify Limited
4134 1017 800 CHINANET-BACKBONE
721 1069 761 DLA Systems Automation Center
4755 753 684 Videsh Sanchar Nigam Ltd. Aut
11492 629 619 Cable One
22773 557 532 Cox Communications, Inc.
19916 563 509 OLM LLC
855 557 493 Canadian Research Network
6197 962 466 BellSouth Network Solutions,
5668 476 450 CenturyTel Internet Holdings,
7545 511 441 TPG Internet Pty Ltd
3602 540 437 Sprint Canada, Inc.
19262 563 428 Verizon Global Networks
17676 470 370 Softbank BB Corp.
4766 651 364 Korea Telecom (KIX)
17488 370 360 Hathway IP Over Cable Interne
6467 407 359 E.Spire Communications, Inc.
9498 411 345 BHARTI BT INTERNET LTD.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
38976 UNALLOCATED 62.192.224.0/19 21166 Satgate autonomous s
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
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 /11:17 /12:82
/13:188 /14:343 /15:666 /16:8607 /17:2896 /18:4884
/19:11037 /20:12187 /21:10223 /22:13509 /23:14631 /24:95344
/25:347 /26:292 /27:200 /28:26 /29:12 /30:37
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 862 878 Covad Communications
6197 784 962 BellSouth Network Solutions,
7018 722 1470 AT&T WorldNet Services
9583 653 830 Sify Limited
2386 641 915 AT&T Data Communications Serv
11492 621 629 Cable One
4323 569 1191 Time Warner Telecom
19916 557 563 OLM LLC
4766 456 651 Korea Telecom (KIX)
855 430 557 Canadian Research Network
702 394 615 UUNET - Commercial IP service
7011 381 432 Citizens Utilities
5668 376 476 CenturyTel Internet Holdings,
1239 365 845 Sprint
6198 355 493 BellSouth Network Solutions,
6517 321 346 Yipes Communications, Inc.
15270 317 344 PaeTec.net -a division of Pae
13609 298 340 Choice One Communications Inc
18302 297 313 SK Global co., Ltd
701 285 985 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:38 12:1620 13:1 15:11 16:3
17:3 18:3 20:42 24:680 30:2 32:64
38:183 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:96 59:95 60:154 61:803
62:797 63:1894 64:2909 65:2125 66:2894 67:636
68:685 69:1315 70:236 71:35 72:469 80:695
81:579 82:481 83:320 84:307 85:371 86:204
87:100 125:63 128:140 129:165 130:99 131:301
132:34 133:1 134:151 135:45 136:164 137:71
138:173 139:75 140:443 141:146 142:400 143:145
144:218 145:34 146:304 147:131 148:270 149:190
150:108 151:73 152:111 153:94 154:5 155:152
156:84 157:118 158:146 159:176 160:85 161:76
162:241 163:159 164:189 165:183 166:146 167:245
168:461 169:142 170:308 171:12 192:5756 193:3359
194:2438 195:1640 196:718 198:3921 199:3258 200:4294
201:455 202:6239 203:6583 204:3834 205:2094 206:2438
207:2923 208:2032 209:3459 210:1775 211:796 212:1216
213:1378 214:314 215:42 216:3844 217:1171 218:222
219:127 220:539 221:317 222:129
End of report
Routing Table Report 04:00 +10GMT Sat 26 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 175412
Prefixes after maximum aggregation: 98989
Unique aggregates announced to Internet: 84958
Total ASes present in the Internet Routing Table: 20974
Origin-only ASes present in the Internet Routing Table: 18252
Origin ASes announcing only one prefix: 8628
Transit ASes present in the Internet Routing Table: 2722
Transit-only ASes present in the Internet Routing Table: 73
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: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1464975232
Equivalent to 87 /8s, 81 /16s and 191 /24s
Percentage of available address space announced: 39.5
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84231
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36699
Total APNIC prefixes after maximum aggregation: 15833
Prefixes being announced from the APNIC address blocks: 34450
Unique aggregates announced from the APNIC address blocks: 16836
APNIC Region origin ASes present in the Internet Routing Table: 2408
APNIC Region origin ASes announcing only one prefix: 700
APNIC Region transit ASes present in the Internet Routing Table: 367
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 207770304
Equivalent to 12 /8s, 98 /16s and 82 /24s
Percentage of available APNIC address space announced: 77.1
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, 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: 92643
Total ARIN prefixes after maximum aggregation: 55837
Prefixes being announced from the ARIN address blocks: 72165
Unique aggregates announced from the ARIN address blocks: 27489
ARIN Region origin ASes present in the Internet Routing Table: 10369
ARIN Region origin ASes announcing only one prefix: 3846
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: 276880896
Equivalent to 16 /8s, 128 /16s and 222 /24s
Percentage of available ARIN address space announced: 68.8
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: 34319
Total RIPE prefixes after maximum aggregation: 23169
Prefixes being announced from the RIPE address blocks: 31276
Unique aggregates announced from the RIPE address blocks: 20972
RIPE Region origin ASes present in the Internet Routing Table: 7333
RIPE Region origin ASes announcing only one prefix: 3833
RIPE Region transit ASes present in the Internet Routing Table: 1210
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 224984832
Equivalent to 13 /8s, 104 /16s and 255 /24s
Percentage of available RIPE address space announced: 67.1
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
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: 9957
Total LACNIC prefixes after maximum aggregation: 3298
Prefixes being announced from the LACNIC address blocks: 8248
Unique aggregates announced from the LACNIC address blocks: 4765
LACNIC Region origin ASes present in the Internet Routing Table: 650
LACNIC Region origin ASes announcing only one prefix: 207
LACNIC Region transit ASes present in the Internet Routing Table: 122
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22922752
Equivalent to 1 /8s, 93 /16s and 198 /24s
Percentage of available LACNIC address space announced: 34.2
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: 1787
Total AfriNIC prefixes after maximum aggregation: 852
Prefixes being announced from the AfriNIC address blocks: 1150
Unique aggregates announced from the AfriNIC address blocks: 833
AfriNIC Region origin ASes present in the Internet Routing Table: 141
AfriNIC Region origin ASes announcing only one prefix: 42
AfriNIC Region transit ASes present in the Internet Routing Table: 18
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2862848
Equivalent to 0 /8s, 43 /16s and 175 /24s
Percentage of available AfriNIC address space announced: 8.5
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 1017 6348 217 CHINANET-BACKBONE
9583 830 77 12 Sify Limited
4755 753 259 69 Videsh Sanchar Nigam Ltd. Aut
1221 742 1342 514 Telstra Pty Ltd
4766 651 3927 287 Korea Telecom (KIX)
7545 510 108 69 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9498 410 216 65 BHARTI BT INTERNET LTD.
9443 394 87 80 Primus Telecommunications
17488 370 22 10 Hathway IP Over Cable Interne
4802 348 74 160 Wantree Development
2907 340 1764 317 SINET Japan
17557 331 24 161 Pakistan Telecom
9929 330 217 48 China Netcom Corp.
7474 329 258 227 SingTel Optus Pty Ltd
18302 312 142 173 SK Global co., Ltd
17974 280 65 16 PT TELEKOMUNIKASI INDONESIA
9837 276 79 177 Powertel Ltd
18101 271 68 19 Reliance Infocom Ltd Internet
9800 257 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1477 6316 964 AT&T WorldNet Services
4323 1191 706 233 Time Warner Telecom
174 1069 5846 992 Cogent Communications
721 1066 21935 310 DLA Systems Automation Center
701 987 8135 832 UUNET Technologies, Inc.
6197 962 407 496 BellSouth Network Solutions,
2386 914 528 687 AT&T Data Communications Serv
18566 878 240 7 Covad Communications
1239 845 2801 599 Sprint
209 656 3607 520 Qwest
20115 655 532 345 Charter Communications
11492 629 81 10 Cable One
852 573 1093 381 Telus Advanced Communications
19262 563 1593 135 Verizon Global Networks
19916 563 49 54 OLM LLC
855 557 247 64 Canadian Research Network
22773 557 1468 25 Cox Communications, Inc.
3602 543 126 103 Sprint Canada, Inc.
3356 515 10633 402 Level 3 Communications, LLC
6478 495 1427 276 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 616 1960 484 UUNET - Commercial IP service
3301 304 1101 290 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 271 475 266 COLT Telecommunications
680 245 2040 239 DFN-IP service G-WiN
8708 233 274 219 Romania Data Systems S.A.
3246 230 477 223 Song Networks
6746 202 51 173 Dynamic Network Technologies,
1257 195 712 171 SWIPnet Swedish IP Network
3269 182 1829 68 TELECOM ITALIA
5515 182 840 128 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
5400 166 317 136 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 160 170 94 AUCS Communications Services
8866 159 37 9 Bulgarian Telecommunication C
3215 150 1275 81 France Telecom Transpac
24863 150 37 6 LINKdotNET AS number
12479 148 322 5 Uni2 Autonomous System
25186 148 211 104 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 397 709 170 UniNet S.A. de C.V.
16814 295 18 7 NSS, S.A.
11172 282 104 69 Servicios Alestra S.A de C.V
11664 222 22 14 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 180 128 8 VTR PUNTO NET S.A.
6147 158 118 21 Telefonica Del Peru
7303 152 72 19 Telecom Argentina Stet-France
13999 142 52 9 Mega Cable S.A. de C.V.
11556 130 64 3 Cable-Wireless Panama
19169 126 8 23 Telconet
10481 121 48 8 Prima S.A.
6503 113 148 74 AVANTEL, S.A.
6505 113 89 83 Global One Communicaoes Ltda
18822 113 7 10 TELEFONICA MANQUEHUE
21826 112 14 18 INTERCABLE
5639 111 12 9 Telecommunications Services o
11311 99 8 10 Sinectis S.A.
4270 92 17 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 708 228 The Internet Solution
8452 147 44 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
2905 78 211 71 The Internetworking Company o
20928 61 16 2 Noor Advanced Technologies AS
24835 59 34 6 RAYA Telecom - Egypt
6713 56 71 10 Itissalat Al-MAGHRIB
15475 56 84 4 Nile Online
5713 38 151 34 Telkom SA Ltd
12455 33 6 3 Jambonet Autonomous system
33774 33 4 24 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
23889 23 5 9 MAURITIUS TELECOM
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
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 1191 958 Time Warner Telecom
18566 878 871 Covad Communications
9583 830 818 Sify Limited
4134 1017 800 CHINANET-BACKBONE
721 1066 756 DLA Systems Automation Center
4755 753 684 Videsh Sanchar Nigam Ltd. Aut
11492 629 619 Cable One
22773 557 532 Cox Communications, Inc.
19916 563 509 OLM LLC
855 557 493 Canadian Research Network
6197 962 466 BellSouth Network Solutions,
5668 476 450 CenturyTel Internet Holdings,
7545 510 441 TPG Internet Pty Ltd
3602 543 440 Sprint Canada, Inc.
19262 563 428 Verizon Global Networks
17676 470 370 Softbank BB Corp.
4766 651 364 Korea Telecom (KIX)
17488 370 360 Hathway IP Over Cable Interne
6467 403 355 E.Spire Communications, Inc.
9498 410 345 BHARTI BT INTERNET LTD.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
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 /11:17 /12:82
/13:188 /14:342 /15:666 /16:8606 /17:2895 /18:4883
/19:11042 /20:12165 /21:10216 /22:13506 /23:14613 /24:95210
/25:347 /26:291 /27:203 /28:26 /29:12 /30:37
/31:3 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 862 878 Covad Communications
6197 784 962 BellSouth Network Solutions,
7018 728 1477 AT&T WorldNet Services
9583 653 830 Sify Limited
2386 641 914 AT&T Data Communications Serv
11492 621 629 Cable One
4323 569 1191 Time Warner Telecom
19916 557 563 OLM LLC
4766 456 651 Korea Telecom (KIX)
855 430 557 Canadian Research Network
702 395 616 UUNET - Commercial IP service
7011 381 432 Citizens Utilities
5668 376 476 CenturyTel Internet Holdings,
1239 365 845 Sprint
6198 355 493 BellSouth Network Solutions,
6517 318 343 Yipes Communications, Inc.
15270 317 344 PaeTec.net -a division of Pae
13609 298 340 Choice One Communications Inc
18302 296 312 SK Global co., Ltd
701 286 987 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:38 12:1621 13:1 15:11 16:3
17:3 18:3 20:42 24:680 30:2 32:64
38:182 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:94 59:95 60:153 61:803
62:791 63:1897 64:2909 65:2126 66:2895 67:636
68:685 69:1315 70:236 71:35 72:467 80:695
81:580 82:481 83:317 84:308 85:371 86:205
87:101 125:63 128:142 129:169 130:99 131:301
132:34 133:1 134:151 135:45 136:164 137:71
138:173 139:75 140:446 141:146 142:400 143:145
144:219 145:34 146:304 147:131 148:271 149:193
150:107 151:73 152:111 153:94 154:5 155:152
156:84 157:118 158:146 159:179 160:85 161:76
162:241 163:159 164:189 165:183 166:146 167:246
168:460 169:139 170:309 171:12 192:5749 193:3359
194:2437 195:1642 196:720 198:3910 199:3213 200:4288
201:455 202:6247 203:6586 204:3828 205:2040 206:2440
207:2886 208:2032 209:3454 210:1781 211:797 212:1219
213:1382 214:315 215:42 216:3842 217:1169 218:222
219:128 220:539 221:317 222:129
End of report
Routing Table Report 04:00 +10GMT Fri 25 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 175490
Prefixes after maximum aggregation: 99050
Unique aggregates announced to Internet: 84946
Total ASes present in the Internet Routing Table: 20979
Origin-only ASes present in the Internet Routing Table: 18255
Origin ASes announcing only one prefix: 8642
Transit ASes present in the Internet Routing Table: 2724
Transit-only ASes present in the Internet Routing Table: 75
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: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1465157248
Equivalent to 87 /8s, 84 /16s and 134 /24s
Percentage of available address space announced: 39.5
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84205
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36704
Total APNIC prefixes after maximum aggregation: 15840
Prefixes being announced from the APNIC address blocks: 34467
Unique aggregates announced from the APNIC address blocks: 16842
APNIC Region origin ASes present in the Internet Routing Table: 2412
APNIC Region origin ASes announcing only one prefix: 707
APNIC Region transit ASes present in the Internet Routing Table: 368
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 207794624
Equivalent to 12 /8s, 98 /16s and 177 /24s
Percentage of available APNIC address space announced: 77.1
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, 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: 92800
Total ARIN prefixes after maximum aggregation: 55915
Prefixes being announced from the ARIN address blocks: 72322
Unique aggregates announced from the ARIN address blocks: 27487
ARIN Region origin ASes present in the Internet Routing Table: 10370
ARIN Region origin ASes announcing only one prefix: 3849
ARIN Region transit ASes present in the Internet Routing Table: 967
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 276880384
Equivalent to 16 /8s, 128 /16s and 220 /24s
Percentage of available ARIN address space announced: 68.8
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: 34301
Total RIPE prefixes after maximum aggregation: 23145
Prefixes being announced from the RIPE address blocks: 31254
Unique aggregates announced from the RIPE address blocks: 20945
RIPE Region origin ASes present in the Internet Routing Table: 7329
RIPE Region origin ASes announcing only one prefix: 3834
RIPE Region transit ASes present in the Internet Routing Table: 1209
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 225015552
Equivalent to 13 /8s, 105 /16s and 119 /24s
Percentage of available RIPE address space announced: 67.1
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
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: 9882
Total LACNIC prefixes after maximum aggregation: 3297
Prefixes being announced from the LACNIC address blocks: 8172
Unique aggregates announced from the LACNIC address blocks: 4774
LACNIC Region origin ASes present in the Internet Routing Table: 651
LACNIC Region origin ASes announcing only one prefix: 209
LACNIC Region transit ASes present in the Internet Routing Table: 122
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22917888
Equivalent to 1 /8s, 93 /16s and 179 /24s
Percentage of available LACNIC address space announced: 34.2
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: 1796
Total AfriNIC prefixes after maximum aggregation: 853
Prefixes being announced from the AfriNIC address blocks: 1155
Unique aggregates announced from the AfriNIC address blocks: 834
AfriNIC Region origin ASes present in the Internet Routing Table: 142
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 19
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2866944
Equivalent to 0 /8s, 43 /16s and 191 /24s
Percentage of available AfriNIC address space announced: 8.5
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 1017 6348 217 CHINANET-BACKBONE
9583 828 77 12 Sify Limited
4755 753 259 69 Videsh Sanchar Nigam Ltd. Aut
1221 735 1342 513 Telstra Pty Ltd
4766 651 3927 287 Korea Telecom (KIX)
7545 511 106 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9498 409 216 65 BHARTI BT INTERNET LTD.
9443 394 87 80 Primus Telecommunications
17488 367 22 11 Hathway IP Over Cable Interne
4802 343 73 156 Wantree Development
2907 340 1764 317 SINET Japan
7474 332 258 228 SingTel Optus Pty Ltd
17557 331 24 161 Pakistan Telecom
9929 329 217 48 China Netcom Corp.
18302 312 142 173 SK Global co., Ltd
17974 282 65 16 PT TELEKOMUNIKASI INDONESIA
9837 276 79 177 Powertel Ltd
18101 271 68 19 Reliance Infocom Ltd Internet
9800 257 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1481 6316 964 AT&T WorldNet Services
4323 1191 706 233 Time Warner Telecom
174 1078 5847 1000 Cogent Communications
721 1070 21938 308 DLA Systems Automation Center
701 987 8136 831 UUNET Technologies, Inc.
6197 963 407 496 BellSouth Network Solutions,
2386 914 528 687 AT&T Data Communications Serv
18566 878 240 7 Covad Communications
1239 843 2801 597 Sprint
209 657 3607 520 Qwest
20115 655 532 345 Charter Communications
11492 629 81 10 Cable One
852 573 1093 381 Telus Advanced Communications
19262 563 1593 135 Verizon Global Networks
19916 563 49 54 OLM LLC
855 557 247 64 Canadian Research Network
22773 557 1468 25 Cox Communications, Inc.
3602 542 126 103 Sprint Canada, Inc.
3356 515 10633 402 Level 3 Communications, LLC
6478 495 1427 276 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 614 1960 483 UUNET - Commercial IP service
3301 304 1101 290 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 271 475 266 COLT Telecommunications
680 245 2040 239 DFN-IP service G-WiN
8708 234 275 220 Romania Data Systems S.A.
3246 230 477 223 Song Networks
6746 202 51 173 Dynamic Network Technologies,
1257 195 712 171 SWIPnet Swedish IP Network
3269 182 1829 68 TELECOM ITALIA
5515 182 840 128 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
5400 166 317 136 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 160 170 94 AUCS Communications Services
8866 159 37 9 Bulgarian Telecommunication C
12479 150 322 5 Uni2 Autonomous System
24863 150 37 6 LINKdotNET AS number
25186 148 211 104 France Telecom Transpac's Tra
3215 147 1269 78 France Telecom Transpac
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 396 708 169 UniNet S.A. de C.V.
16814 295 18 7 NSS, S.A.
11172 283 104 70 Servicios Alestra S.A de C.V
11664 223 22 14 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 178 128 7 VTR PUNTO NET S.A.
6147 158 118 21 Telefonica Del Peru
7303 152 72 19 Telecom Argentina Stet-France
13999 142 52 9 Mega Cable S.A. de C.V.
11556 129 64 2 Cable-Wireless Panama
19169 127 8 23 Telconet
10481 121 48 8 Prima S.A.
6505 119 89 85 Global One Communicaoes Ltda
6503 113 148 74 AVANTEL, S.A.
18822 113 7 10 TELEFONICA MANQUEHUE
21826 112 14 18 INTERCABLE
5639 111 12 9 Telecommunications Services o
11311 99 8 10 Sinectis S.A.
23216 93 23 11 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 708 228 The Internet Solution
8452 147 44 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
2905 78 211 71 The Internetworking Company o
6713 69 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 59 34 6 RAYA Telecom - Egypt
15475 56 84 4 Nile Online
5713 38 151 34 Telkom SA Ltd
12455 33 6 3 Jambonet Autonomous system
33774 33 4 24 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
23889 23 5 9 MAURITIUS TELECOM
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
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 1191 958 Time Warner Telecom
18566 878 871 Covad Communications
9583 828 816 Sify Limited
4134 1017 800 CHINANET-BACKBONE
721 1070 762 DLA Systems Automation Center
4755 753 684 Videsh Sanchar Nigam Ltd. Aut
11492 629 619 Cable One
22773 557 532 Cox Communications, Inc.
19916 563 509 OLM LLC
855 557 493 Canadian Research Network
6197 963 467 BellSouth Network Solutions,
5668 476 450 CenturyTel Internet Holdings,
7545 511 440 TPG Internet Pty Ltd
3602 542 439 Sprint Canada, Inc.
19262 563 428 Verizon Global Networks
17676 470 370 Softbank BB Corp.
4766 651 364 Korea Telecom (KIX)
6467 407 359 E.Spire Communications, Inc.
17488 367 356 Hathway IP Over Cable Interne
9498 409 344 BHARTI BT INTERNET LTD.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
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 /11:17 /12:82
/13:188 /14:342 /15:668 /16:8606 /17:2895 /18:4881
/19:11036 /20:12184 /21:10210 /22:13490 /23:14619 /24:95294
/25:346 /26:291 /27:202 /28:26 /29:12 /30:37
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 862 878 Covad Communications
6197 785 963 BellSouth Network Solutions,
7018 732 1481 AT&T WorldNet Services
9583 651 828 Sify Limited
2386 641 914 AT&T Data Communications Serv
11492 621 629 Cable One
4323 569 1191 Time Warner Telecom
19916 557 563 OLM LLC
4766 456 651 Korea Telecom (KIX)
855 430 557 Canadian Research Network
702 393 614 UUNET - Commercial IP service
7011 381 432 Citizens Utilities
5668 376 476 CenturyTel Internet Holdings,
1239 364 843 Sprint
6198 355 493 BellSouth Network Solutions,
6517 320 345 Yipes Communications, Inc.
15270 317 344 PaeTec.net -a division of Pae
13609 298 340 Choice One Communications Inc
18302 296 312 SK Global co., Ltd
701 285 987 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:38 12:1621 13:1 15:11 16:3
17:3 18:3 20:42 24:680 30:2 32:64
38:181 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:96 59:94 60:150 61:806
62:794 63:1895 64:2908 65:2126 66:2895 67:636
68:685 69:1314 70:235 71:35 72:467 80:710
81:581 82:481 83:310 84:305 85:367 86:203
87:100 125:63 128:142 129:169 130:99 131:301
132:35 133:1 134:151 135:45 136:168 137:70
138:174 139:75 140:446 141:146 142:400 143:145
144:218 145:34 146:304 147:131 148:271 149:192
150:107 151:73 152:111 153:94 154:5 155:152
156:84 157:119 158:146 159:179 160:85 161:76
162:241 163:147 164:189 165:183 166:146 167:246
168:461 169:142 170:309 171:12 192:5753 193:3361
194:2437 195:1639 196:713 198:3920 199:3255 200:4236
201:438 202:6252 203:6586 204:3826 205:2095 206:2443
207:2920 208:2031 209:3459 210:1775 211:816 212:1216
213:1379 214:314 215:42 216:3841 217:1176 218:222
219:129 220:540 221:317 222:128
End of report
Routing Table Report 04:00 +10GMT Thu 24 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 175528
Prefixes after maximum aggregation: 98989
Unique aggregates announced to Internet: 84869
Total ASes present in the Internet Routing Table: 20972
Origin-only ASes present in the Internet Routing Table: 18243
Origin ASes announcing only one prefix: 8646
Transit ASes present in the Internet Routing Table: 2729
Transit-only ASes present in the Internet Routing Table: 75
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: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1463871104
Equivalent to 87 /8s, 64 /16s and 230 /24s
Percentage of available address space announced: 39.5
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84191
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36617
Total APNIC prefixes after maximum aggregation: 15806
Prefixes being announced from the APNIC address blocks: 34406
Unique aggregates announced from the APNIC address blocks: 16815
APNIC Region origin ASes present in the Internet Routing Table: 2410
APNIC Region origin ASes announcing only one prefix: 709
APNIC Region transit ASes present in the Internet Routing Table: 369
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 207217600
Equivalent to 12 /8s, 89 /16s and 227 /24s
Percentage of available APNIC address space announced: 76.9
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, 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: 92869
Total ARIN prefixes after maximum aggregation: 55933
Prefixes being announced from the ARIN address blocks: 72383
Unique aggregates announced from the ARIN address blocks: 27516
ARIN Region origin ASes present in the Internet Routing Table: 10369
ARIN Region origin ASes announcing only one prefix: 3845
ARIN Region transit ASes present in the Internet Routing Table: 971
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 276867584
Equivalent to 16 /8s, 128 /16s and 170 /24s
Percentage of available ARIN address space announced: 68.8
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: 34243
Total RIPE prefixes after maximum aggregation: 23127
Prefixes being announced from the RIPE address blocks: 31204
Unique aggregates announced from the RIPE address blocks: 20918
RIPE Region origin ASes present in the Internet Routing Table: 7326
RIPE Region origin ASes announcing only one prefix: 3840
RIPE Region transit ASes present in the Internet Routing Table: 1209
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 224358144
Equivalent to 13 /8s, 95 /16s and 111 /24s
Percentage of available RIPE address space announced: 66.9
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
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: 9990
Total LACNIC prefixes after maximum aggregation: 3271
Prefixes being announced from the LACNIC address blocks: 8279
Unique aggregates announced from the LACNIC address blocks: 4745
LACNIC Region origin ASes present in the Internet Routing Table: 651
LACNIC Region origin ASes announcing only one prefix: 210
LACNIC Region transit ASes present in the Internet Routing Table: 122
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22849024
Equivalent to 1 /8s, 92 /16s and 166 /24s
Percentage of available LACNIC address space announced: 34.0
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: 1802
Total AfriNIC prefixes after maximum aggregation: 852
Prefixes being announced from the AfriNIC address blocks: 1158
Unique aggregates announced from the AfriNIC address blocks: 834
AfriNIC Region origin ASes present in the Internet Routing Table: 141
AfriNIC Region origin ASes announcing only one prefix: 42
AfriNIC Region transit ASes present in the Internet Routing Table: 19
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2866944
Equivalent to 0 /8s, 43 /16s and 191 /24s
Percentage of available AfriNIC address space announced: 8.5
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 1022 6348 216 CHINANET-BACKBONE
9583 828 77 12 Sify Limited
4755 748 259 67 Videsh Sanchar Nigam Ltd. Aut
1221 735 1342 512 Telstra Pty Ltd
4766 651 3927 287 Korea Telecom (KIX)
7545 513 108 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9498 401 215 63 BHARTI BT INTERNET LTD.
9443 394 87 80 Primus Telecommunications
17488 366 22 10 Hathway IP Over Cable Interne
4802 342 73 158 Wantree Development
2907 340 1764 317 SINET Japan
7474 332 258 228 SingTel Optus Pty Ltd
17557 331 24 161 Pakistan Telecom
9929 329 217 48 China Netcom Corp.
18302 302 140 164 SK Global co., Ltd
17974 282 65 16 PT TELEKOMUNIKASI INDONESIA
9837 276 79 177 Powertel Ltd
18101 271 68 19 Reliance Infocom Ltd Internet
9800 257 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1484 6317 963 AT&T WorldNet Services
4323 1192 706 233 Time Warner Telecom
174 1079 5847 998 Cogent Communications
721 1070 21938 308 DLA Systems Automation Center
701 987 8136 831 UUNET Technologies, Inc.
6197 963 407 496 BellSouth Network Solutions,
2386 914 528 687 AT&T Data Communications Serv
18566 878 240 7 Covad Communications
1239 846 2800 596 Sprint
209 658 3621 521 Qwest
20115 653 531 345 Charter Communications
11492 629 81 10 Cable One
852 573 1093 381 Telus Advanced Communications
19262 563 1593 135 Verizon Global Networks
19916 563 49 54 OLM LLC
855 557 247 64 Canadian Research Network
22773 556 1468 25 Cox Communications, Inc.
3602 542 126 103 Sprint Canada, Inc.
3356 518 10633 404 Level 3 Communications, LLC
6478 495 1427 276 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 615 1960 484 UUNET - Commercial IP service
3301 304 1101 290 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 270 475 265 COLT Telecommunications
680 245 2040 239 DFN-IP service G-WiN
8708 235 275 221 Romania Data Systems S.A.
3246 230 477 223 Song Networks
6746 202 51 173 Dynamic Network Technologies,
1257 195 712 171 SWIPnet Swedish IP Network
3269 182 1829 68 TELECOM ITALIA
5515 182 840 128 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
5400 166 317 136 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 160 185 94 AUCS Communications Services
8866 158 37 9 Bulgarian Telecommunication C
12479 150 322 5 Uni2 Autonomous System
24863 150 37 6 LINKdotNET AS number
25186 148 211 104 France Telecom Transpac's Tra
3215 147 1269 78 France Telecom Transpac
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 396 708 169 UniNet S.A. de C.V.
16814 295 18 7 NSS, S.A.
11172 282 104 70 Servicios Alestra S.A de C.V
11664 223 22 14 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 178 128 7 VTR PUNTO NET S.A.
6147 161 118 21 Telefonica Del Peru
7303 152 72 19 Telecom Argentina Stet-France
13999 144 52 9 Mega Cable S.A. de C.V.
11556 129 64 2 Cable-Wireless Panama
19169 128 8 20 Telconet
10481 121 48 8 Prima S.A.
6505 120 89 85 Global One Communicaoes Ltda
18822 113 7 10 TELEFONICA MANQUEHUE
21826 112 14 18 INTERCABLE
5639 111 12 9 Telecommunications Services o
6503 111 148 72 AVANTEL, S.A.
11311 99 8 10 Sinectis S.A.
23216 93 23 11 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 708 228 The Internet Solution
8452 147 44 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
2905 78 211 71 The Internetworking Company o
6713 70 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 59 34 6 RAYA Telecom - Egypt
15475 56 84 4 Nile Online
5713 38 151 34 Telkom SA Ltd
12455 33 6 3 Jambonet Autonomous system
33774 33 4 24 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
23889 22 5 9 MAURITIUS TELECOM
21280 21 4 4 Swift Global Kenya Ltd.Is an
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 1192 959 Time Warner Telecom
18566 878 871 Covad Communications
9583 828 816 Sify Limited
4134 1022 806 CHINANET-BACKBONE
721 1070 762 DLA Systems Automation Center
4755 748 681 Videsh Sanchar Nigam Ltd. Aut
11492 629 619 Cable One
22773 556 531 Cox Communications, Inc.
19916 563 509 OLM LLC
855 557 493 Canadian Research Network
6197 963 467 BellSouth Network Solutions,
5668 476 450 CenturyTel Internet Holdings,
7545 513 442 TPG Internet Pty Ltd
3602 542 439 Sprint Canada, Inc.
19262 563 428 Verizon Global Networks
17676 470 370 Softbank BB Corp.
4766 651 364 Korea Telecom (KIX)
6467 407 359 E.Spire Communications, Inc.
17488 366 356 Hathway IP Over Cable Interne
9498 401 338 BHARTI BT INTERNET LTD.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
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 /11:17 /12:82
/13:187 /14:341 /15:667 /16:8596 /17:2879 /18:4876
/19:11037 /20:12170 /21:10211 /22:13482 /23:14617 /24:95388
/25:346 /26:292 /27:201 /28:26 /29:12 /30:37
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 862 878 Covad Communications
6197 785 963 BellSouth Network Solutions,
7018 732 1484 AT&T WorldNet Services
9583 651 828 Sify Limited
2386 641 914 AT&T Data Communications Serv
11492 621 629 Cable One
4323 570 1192 Time Warner Telecom
19916 557 563 OLM LLC
4766 456 651 Korea Telecom (KIX)
855 430 557 Canadian Research Network
7011 399 461 Citizens Utilities
702 394 615 UUNET - Commercial IP service
5668 376 476 CenturyTel Internet Holdings,
1239 365 846 Sprint
6198 355 493 BellSouth Network Solutions,
6517 320 345 Yipes Communications, Inc.
15270 317 344 PaeTec.net -a division of Pae
13609 298 340 Choice One Communications Inc
18302 292 302 SK Global co., Ltd
701 285 987 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:38 12:1621 13:1 15:11 16:3
17:3 18:3 20:42 24:680 30:2 32:64
38:180 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:98 59:92 60:149 61:805
62:795 63:1898 64:2936 65:2130 66:2893 67:638
68:682 69:1314 70:234 71:35 72:465 80:696
81:581 82:475 83:317 84:300 85:371 86:201
87:95 125:64 128:142 129:169 130:99 131:299
132:35 133:1 134:151 135:45 136:168 137:71
138:174 139:75 140:443 141:146 142:400 143:145
144:217 145:34 146:304 147:131 148:271 149:193
150:108 151:73 152:111 153:94 154:5 155:153
156:84 157:119 158:146 159:178 160:85 161:66
162:240 163:147 164:190 165:183 166:146 167:246
168:461 169:142 170:312 171:12 192:5761 193:3363
194:2437 195:1639 196:715 198:3925 199:3259 200:4310
201:465 202:6249 203:6578 204:3835 205:2093 206:2441
207:2921 208:2033 209:3459 210:1769 211:823 212:1211
213:1375 214:313 215:42 216:3838 217:1171 218:218
219:130 220:539 221:317 222:127
End of report
Routing Table Report 04:00 +10GMT Wed 23 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 175306
Prefixes after maximum aggregation: 99020
Unique aggregates announced to Internet: 85014
Total ASes present in the Internet Routing Table: 20963
Origin-only ASes present in the Internet Routing Table: 18243
Origin ASes announcing only one prefix: 8635
Transit ASes present in the Internet Routing Table: 2720
Transit-only ASes present in the Internet Routing Table: 74
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: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1463469440
Equivalent to 87 /8s, 58 /16s and 197 /24s
Percentage of available address space announced: 39.5
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84028
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36488
Total APNIC prefixes after maximum aggregation: 15870
Prefixes being announced from the APNIC address blocks: 34256
Unique aggregates announced from the APNIC address blocks: 16915
APNIC Region origin ASes present in the Internet Routing Table: 2408
APNIC Region origin ASes announcing only one prefix: 706
APNIC Region transit ASes present in the Internet Routing Table: 367
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 207212480
Equivalent to 12 /8s, 89 /16s and 207 /24s
Percentage of available APNIC address space announced: 76.9
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, 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: 92876
Total ARIN prefixes after maximum aggregation: 55907
Prefixes being announced from the ARIN address blocks: 72394
Unique aggregates announced from the ARIN address blocks: 27507
ARIN Region origin ASes present in the Internet Routing Table: 10365
ARIN Region origin ASes announcing only one prefix: 3843
ARIN Region transit ASes present in the Internet Routing Table: 966
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 276652544
Equivalent to 16 /8s, 125 /16s and 98 /24s
Percentage of available ARIN address space announced: 68.7
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
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: 34184
Total RIPE prefixes after maximum aggregation: 23106
Prefixes being announced from the RIPE address blocks: 31147
Unique aggregates announced from the RIPE address blocks: 20893
RIPE Region origin ASes present in the Internet Routing Table: 7325
RIPE Region origin ASes announcing only one prefix: 3835
RIPE Region transit ASes present in the Internet Routing Table: 1204
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 224222464
Equivalent to 13 /8s, 93 /16s and 93 /24s
Percentage of available RIPE address space announced: 66.8
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: 9954
Total LACNIC prefixes after maximum aggregation: 3289
Prefixes being announced from the LACNIC address blocks: 8250
Unique aggregates announced from the LACNIC address blocks: 4800
LACNIC Region origin ASes present in the Internet Routing Table: 649
LACNIC Region origin ASes announcing only one prefix: 208
LACNIC Region transit ASes present in the Internet Routing Table: 122
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22827520
Equivalent to 1 /8s, 92 /16s and 82 /24s
Percentage of available LACNIC address space announced: 34.0
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: 1797
Total AfriNIC prefixes after maximum aggregation: 848
Prefixes being announced from the AfriNIC address blocks: 1156
Unique aggregates announced from the AfriNIC address blocks: 834
AfriNIC Region origin ASes present in the Internet Routing Table: 142
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 19
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2866944
Equivalent to 0 /8s, 43 /16s and 191 /24s
Percentage of available AfriNIC address space announced: 8.5
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 1026 6348 216 CHINANET-BACKBONE
4755 751 259 69 Videsh Sanchar Nigam Ltd. Aut
1221 738 1342 512 Telstra Pty Ltd
9583 688 74 61 Sify Limited
4766 648 3927 287 Korea Telecom (KIX)
7545 513 108 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9498 399 215 62 BHARTI BT INTERNET LTD.
9443 394 87 80 Primus Telecommunications
17488 366 22 10 Hathway IP Over Cable Interne
4802 342 73 158 Wantree Development
2907 340 1764 317 SINET Japan
7474 332 258 228 SingTel Optus Pty Ltd
17557 332 24 161 Pakistan Telecom
9929 329 217 48 China Netcom Corp.
18302 307 141 171 SK Global co., Ltd
9837 276 79 177 Powertel Ltd
17974 272 65 16 PT TELEKOMUNIKASI INDONESIA
18101 271 68 19 Reliance Infocom Ltd Internet
9800 257 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1483 6317 962 AT&T WorldNet Services
4323 1191 706 233 Time Warner Telecom
174 1080 5847 999 Cogent Communications
721 1070 21938 308 DLA Systems Automation Center
701 988 8136 833 UUNET Technologies, Inc.
6197 963 407 496 BellSouth Network Solutions,
2386 915 528 688 AT&T Data Communications Serv
18566 878 240 7 Covad Communications
1239 845 2800 595 Sprint
209 657 3621 520 Qwest
20115 652 531 344 Charter Communications
11492 629 81 10 Cable One
852 573 1093 381 Telus Advanced Communications
19916 563 49 54 OLM LLC
19262 562 1585 135 Verizon Global Networks
855 557 247 64 Canadian Research Network
22773 556 1468 25 Cox Communications, Inc.
3602 542 126 103 Sprint Canada, Inc.
3356 518 10633 404 Level 3 Communications, LLC
6478 495 1427 276 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 613 1960 482 UUNET - Commercial IP service
3301 304 1101 290 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 269 475 264 COLT Telecommunications
680 245 2040 239 DFN-IP service G-WiN
8708 235 275 221 Romania Data Systems S.A.
3246 230 477 223 Song Networks
6746 202 51 173 Dynamic Network Technologies,
1257 194 712 171 SWIPnet Swedish IP Network
3269 182 1829 68 TELECOM ITALIA
5515 182 840 128 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
5400 165 317 135 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 160 185 94 AUCS Communications Services
8866 157 37 9 Bulgarian Telecommunication C
24863 152 37 6 LINKdotNET AS number
12479 150 322 5 Uni2 Autonomous System
25186 148 211 104 France Telecom Transpac's Tra
3215 147 1269 78 France Telecom Transpac
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 396 708 169 UniNet S.A. de C.V.
16814 295 18 7 NSS, S.A.
11172 282 104 70 Servicios Alestra S.A de C.V
11664 221 22 29 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 171 128 7 VTR PUNTO NET S.A.
6147 161 118 21 Telefonica Del Peru
7303 152 72 19 Telecom Argentina Stet-France
13999 141 52 9 Mega Cable S.A. de C.V.
11556 129 64 2 Cable-Wireless Panama
19169 128 8 20 Telconet
10481 121 48 8 Prima S.A.
6505 120 89 85 Global One Communicaoes Ltda
6503 113 148 74 AVANTEL, S.A.
18822 113 7 10 TELEFONICA MANQUEHUE
21826 112 14 18 INTERCABLE
5639 108 12 9 Telecommunications Services o
11311 99 8 10 Sinectis S.A.
23216 93 23 11 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 708 228 The Internet Solution
8452 145 44 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
2905 78 211 71 The Internetworking Company o
6713 70 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 59 34 6 RAYA Telecom - Egypt
15475 56 84 4 Nile Online
5713 38 151 34 Telkom SA Ltd
12455 34 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 28 3 19 AS Number for Telecom Algeria
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
23889 22 5 9 MAURITIUS TELECOM
21280 21 4 4 Swift Global Kenya Ltd.Is an
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 1191 958 Time Warner Telecom
18566 878 871 Covad Communications
4134 1026 810 CHINANET-BACKBONE
721 1070 762 DLA Systems Automation Center
4755 751 682 Videsh Sanchar Nigam Ltd. Aut
9583 688 627 Sify Limited
11492 629 619 Cable One
22773 556 531 Cox Communications, Inc.
19916 563 509 OLM LLC
855 557 493 Canadian Research Network
6197 963 467 BellSouth Network Solutions,
5668 476 450 CenturyTel Internet Holdings,
7545 513 442 TPG Internet Pty Ltd
3602 542 439 Sprint Canada, Inc.
19262 562 427 Verizon Global Networks
17676 470 370 Softbank BB Corp.
4766 648 361 Korea Telecom (KIX)
6467 406 359 E.Spire Communications, Inc.
17488 366 356 Hathway IP Over Cable Interne
9498 399 337 BHARTI BT INTERNET LTD.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
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 /11:17 /12:82
/13:187 /14:341 /15:665 /16:8595 /17:2878 /18:4872
/19:11035 /20:12146 /21:10210 /22:13486 /23:14608 /24:95212
/25:341 /26:292 /27:202 /28:26 /29:12 /30:35
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 862 878 Covad Communications
6197 785 963 BellSouth Network Solutions,
7018 731 1483 AT&T WorldNet Services
2386 642 915 AT&T Data Communications Serv
11492 621 629 Cable One
4323 570 1191 Time Warner Telecom
19916 557 563 OLM LLC
9583 544 688 Sify Limited
4766 454 648 Korea Telecom (KIX)
855 430 557 Canadian Research Network
7011 399 461 Citizens Utilities
702 393 613 UUNET - Commercial IP service
5668 376 476 CenturyTel Internet Holdings,
1239 365 845 Sprint
6198 354 492 BellSouth Network Solutions,
6517 320 345 Yipes Communications, Inc.
15270 317 344 PaeTec.net -a division of Pae
13609 298 340 Choice One Communications Inc
18302 291 307 SK Global co., Ltd
701 285 988 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:38 12:1622 13:1 15:11 16:3
17:3 18:3 20:42 24:680 30:2 32:64
38:180 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:98 59:92 60:145 61:797
62:789 63:1901 64:2934 65:2129 66:2895 67:636
68:683 69:1317 70:234 71:34 72:464 80:678
81:582 82:478 83:303 84:305 85:365 86:201
87:94 125:66 128:142 129:169 130:99 131:299
132:35 133:1 134:151 135:45 136:168 137:71
138:174 139:73 140:435 141:145 142:400 143:147
144:217 145:34 146:303 147:131 148:271 149:194
150:108 151:73 152:111 153:94 154:5 155:155
156:84 157:119 158:146 159:179 160:85 161:76
162:241 163:147 164:190 165:182 166:146 167:246
168:461 169:142 170:312 171:12 192:5762 193:3360
194:2433 195:1635 196:713 198:3920 199:3264 200:4296
201:465 202:6218 203:6584 204:3841 205:2099 206:2444
207:2924 208:2032 209:3453 210:1706 211:823 212:1212
213:1375 214:315 215:42 216:3846 217:1167 218:218
219:129 220:540 221:276 222:127
End of report
Routing Table Report 04:00 +10GMT Tue 22 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 175238
Prefixes after maximum aggregation: 98911
Unique aggregates announced to Internet: 84911
Total ASes present in the Internet Routing Table: 20950
Origin-only ASes present in the Internet Routing Table: 18231
Origin ASes announcing only one prefix: 8624
Transit ASes present in the Internet Routing Table: 2719
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 23
Prefixes from unregistered ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1463164032
Equivalent to 87 /8s, 54 /16s and 28 /24s
Percentage of available address space announced: 39.5
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84048
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36600
Total APNIC prefixes after maximum aggregation: 15804
Prefixes being announced from the APNIC address blocks: 34382
Unique aggregates announced from the APNIC address blocks: 16865
APNIC Region origin ASes present in the Internet Routing Table: 2406
APNIC Region origin ASes announcing only one prefix: 701
APNIC Region transit ASes present in the Internet Routing Table: 367
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 207214528
Equivalent to 12 /8s, 89 /16s and 215 /24s
Percentage of available APNIC address space announced: 76.9
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, 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: 92783
Total ARIN prefixes after maximum aggregation: 55877
Prefixes being announced from the ARIN address blocks: 72341
Unique aggregates announced from the ARIN address blocks: 27480
ARIN Region origin ASes present in the Internet Routing Table: 10365
ARIN Region origin ASes announcing only one prefix: 3844
ARIN Region transit ASes present in the Internet Routing Table: 970
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 276210432
Equivalent to 16 /8s, 118 /16s and 163 /24s
Percentage of available ARIN address space announced: 68.6
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: 34216
Total RIPE prefixes after maximum aggregation: 23101
Prefixes being announced from the RIPE address blocks: 31176
Unique aggregates announced from the RIPE address blocks: 20879
RIPE Region origin ASes present in the Internet Routing Table: 7315
RIPE Region origin ASes announcing only one prefix: 3827
RIPE Region transit ASes present in the Internet Routing Table: 1204
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 224157184
Equivalent to 13 /8s, 92 /16s and 94 /24s
Percentage of available RIPE address space announced: 66.8
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: 9839
Total LACNIC prefixes after maximum aggregation: 3282
Prefixes being announced from the LACNIC address blocks: 8133
Unique aggregates announced from the LACNIC address blocks: 4780
LACNIC Region origin ASes present in the Internet Routing Table: 649
LACNIC Region origin ASes announcing only one prefix: 209
LACNIC Region transit ASes present in the Internet Routing Table: 120
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 22828288
Equivalent to 1 /8s, 92 /16s and 85 /24s
Percentage of available LACNIC address space announced: 34.0
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: 1793
Total AfriNIC prefixes after maximum aggregation: 847
Prefixes being announced from the AfriNIC address blocks: 1153
Unique aggregates announced from the AfriNIC address blocks: 834
AfriNIC Region origin ASes present in the Internet Routing Table: 142
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 19
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2866944
Equivalent to 0 /8s, 43 /16s and 191 /24s
Percentage of available AfriNIC address space announced: 8.5
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 1026 6348 216 CHINANET-BACKBONE
9583 826 77 12 Sify Limited
4755 753 259 69 Videsh Sanchar Nigam Ltd. Aut
1221 738 1342 512 Telstra Pty Ltd
4766 627 3926 288 Korea Telecom (KIX)
7545 514 108 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9498 397 215 62 BHARTI BT INTERNET LTD.
9443 394 87 80 Primus Telecommunications
17488 366 22 10 Hathway IP Over Cable Interne
2907 340 1764 317 SINET Japan
4802 335 73 153 Wantree Development
17557 333 25 161 Pakistan Telecom
7474 332 258 228 SingTel Optus Pty Ltd
9929 329 217 48 China Netcom Corp.
18302 302 141 170 SK Global co., Ltd
9837 276 79 177 Powertel Ltd
17974 273 65 16 PT TELEKOMUNIKASI INDONESIA
18101 269 68 19 Reliance Infocom Ltd Internet
9800 257 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1486 6317 963 AT&T WorldNet Services
4323 1192 706 233 Time Warner Telecom
174 1077 5847 997 Cogent Communications
721 1070 21938 308 DLA Systems Automation Center
701 985 8136 830 UUNET Technologies, Inc.
6197 963 407 496 BellSouth Network Solutions,
2386 916 528 689 AT&T Data Communications Serv
18566 877 240 7 Covad Communications
1239 840 2800 592 Sprint
209 656 3621 520 Qwest
20115 652 531 344 Charter Communications
11492 627 81 10 Cable One
852 573 1093 381 Telus Advanced Communications
19916 563 49 54 OLM LLC
19262 560 1579 135 Verizon Global Networks
855 557 247 64 Canadian Research Network
22773 556 1468 25 Cox Communications, Inc.
3602 542 126 103 Sprint Canada, Inc.
3356 518 10633 404 Level 3 Communications, LLC
6478 495 1427 276 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 612 1960 481 UUNET - Commercial IP service
3301 304 1101 290 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 269 475 264 COLT Telecommunications
680 244 2040 239 DFN-IP service G-WiN
8708 235 275 221 Romania Data Systems S.A.
3246 230 477 223 Song Networks
6746 202 51 173 Dynamic Network Technologies,
1257 194 712 171 SWIPnet Swedish IP Network
3269 182 1829 68 TELECOM ITALIA
5515 182 840 128 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
5400 162 317 135 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 159 185 94 AUCS Communications Services
8866 157 37 9 Bulgarian Telecommunication C
24863 150 37 6 LINKdotNET AS number
12479 149 322 5 Uni2 Autonomous System
25186 148 211 104 France Telecom Transpac's Tra
3215 147 1269 78 France Telecom Transpac
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 394 707 167 UniNet S.A. de C.V.
16814 295 18 7 NSS, S.A.
11172 282 88 69 Servicios Alestra S.A de C.V
11664 221 22 29 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 171 128 7 VTR PUNTO NET S.A.
6147 161 118 21 Telefonica Del Peru
7303 152 72 19 Telecom Argentina Stet-France
13999 135 52 9 Mega Cable S.A. de C.V.
11556 129 64 2 Cable-Wireless Panama
19169 128 8 20 Telconet
10481 121 48 8 Prima S.A.
6505 120 89 85 Global One Communicaoes Ltda
6503 113 148 74 AVANTEL, S.A.
18822 113 7 10 TELEFONICA MANQUEHUE
21826 112 14 18 INTERCABLE
5639 111 12 9 Telecommunications Services o
11311 99 8 10 Sinectis S.A.
23216 93 23 11 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 708 228 The Internet Solution
8452 143 44 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
2905 78 211 71 The Internetworking Company o
6713 70 71 10 Itissalat Al-MAGHRIB
20928 60 16 2 Noor Advanced Technologies AS
24835 59 34 6 RAYA Telecom - Egypt
15475 57 84 4 Nile Online
5713 38 151 34 Telkom SA Ltd
12455 34 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 28 3 19 AS Number for Telecom Algeria
8524 24 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
23889 22 5 9 MAURITIUS TELECOM
21280 20 4 4 Swift Global Kenya Ltd.Is an
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 1192 959 Time Warner Telecom
18566 877 870 Covad Communications
9583 826 814 Sify Limited
4134 1026 810 CHINANET-BACKBONE
721 1070 762 DLA Systems Automation Center
4755 753 684 Videsh Sanchar Nigam Ltd. Aut
11492 627 617 Cable One
22773 556 531 Cox Communications, Inc.
19916 563 509 OLM LLC
855 557 493 Canadian Research Network
6197 963 467 BellSouth Network Solutions,
5668 476 450 CenturyTel Internet Holdings,
7545 514 443 TPG Internet Pty Ltd
3602 542 439 Sprint Canada, Inc.
19262 560 425 Verizon Global Networks
17676 470 370 Softbank BB Corp.
6467 404 357 E.Spire Communications, Inc.
17488 366 356 Hathway IP Over Cable Interne
4766 627 339 Korea Telecom (KIX)
812 367 337 Rogers WAVE
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
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 /11:17 /12:81
/13:188 /14:341 /15:666 /16:8597 /17:2884 /18:4872
/19:11031 /20:12142 /21:10197 /22:13460 /23:14588 /24:95215
/25:342 /26:286 /27:194 /28:25 /29:12 /30:36
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 861 877 Covad Communications
6197 785 963 BellSouth Network Solutions,
7018 734 1486 AT&T WorldNet Services
9583 649 826 Sify Limited
2386 642 916 AT&T Data Communications Serv
11492 619 627 Cable One
4323 570 1192 Time Warner Telecom
19916 557 563 OLM LLC
4766 433 627 Korea Telecom (KIX)
855 430 557 Canadian Research Network
7011 399 461 Citizens Utilities
702 393 612 UUNET - Commercial IP service
5668 376 476 CenturyTel Internet Holdings,
1239 364 840 Sprint
6198 353 491 BellSouth Network Solutions,
6517 320 345 Yipes Communications, Inc.
15270 317 344 PaeTec.net -a division of Pae
13609 298 340 Choice One Communications Inc
18302 286 302 SK Global co., Ltd
701 285 985 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:36 11:1 12:1621 13:2 14:1
15:11 16:3 17:3 18:3 20:42 24:679
30:2 32:64 38:181 40:54 44:3 47:3
52:4 55:1 56:3 57:35 58:98 59:91
60:145 61:794 62:784 63:1896 64:2933 65:2131
66:2890 67:634 68:682 69:1317 70:234 71:34
72:464 80:694 81:598 82:497 83:303 84:307
85:368 86:199 87:92 125:66 128:150 129:169
130:99 131:299 132:35 133:1 134:151 135:45
136:117 137:71 138:173 139:73 140:435 141:146
142:400 143:147 144:217 145:34 146:303 147:131
148:270 149:194 150:108 151:72 152:111 153:94
154:5 155:155 156:84 157:119 158:146 159:179
160:85 161:76 162:238 163:146 164:190 165:182
166:146 167:246 168:461 169:142 170:312 171:12
192:5761 193:3357 194:2436 195:1635 196:711 198:3925
199:3262 200:4220 201:432 202:6260 203:6587 204:3835
205:2089 206:2443 207:2916 208:2032 209:3461 210:1775
211:822 212:1210 213:1375 214:316 215:41 216:3846
217:1167 218:218 219:129 220:537 221:315 222:127
End of report
