[rtma] Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Mar 26 13:05:35 EST 2004
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats at lists.apnic.net
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 27 Mar, 2004
Analysis Summary
----------------
BGP routing table entries examined: 135673
Prefixes after maximum aggregation: 82557
Unique aggregates announced to Internet: 65586
Total ASes present in the Internet Routing Table: 16937
Origin-only ASes present in the Internet Routing Table: 14696
Origin ASes announcing only one prefix: 6789
Transit ASes present in the Internet Routing Table: 2241
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 31
Illegal AS announcements present in the Routing Table: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1289561188
Equivalent to 76 /8s, 221 /16s and 36 /24s
Percentage of available address space announced: 34.8
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 60649
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 25465
Total APNIC prefixes after maximum aggregation: 13395
Prefixes being announced from the APNIC address blocks: 23799
Unique aggregates announced from the APNIC address blocks: 13346
APNIC Region origin ASes present in the Internet Routing Table: 2033
APNIC Region origin ASes announcing only one prefix: 610
APNIC Region transit ASes present in the Internet Routing Table: 320
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 139029120
Equivalent to 8 /8s, 73 /16s and 106 /24s
Percentage of available APNIC address space announced: 74.9
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 78537
Total ARIN prefixes after maximum aggregation: 48491
Prefixes being announced from the ARIN address blocks: 60668
Unique aggregates announced from the ARIN address blocks: 21279
ARIN Region origin ASes present in the Internet Routing Table: 9066
ARIN Region origin ASes announcing only one prefix: 3225
ARIN Region transit ASes present in the Internet Routing Table: 893
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 220920352
Equivalent to 13 /8s, 42 /16s and 250 /24s
Percentage of available ARIN address space announced: 73.2
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
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, 29695 - 30719
31744 - 32767
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/8, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 24740
Total RIPE prefixes after maximum aggregation: 17784
Prefixes being announced from the RIPE address blocks: 21530
Unique aggregates announced from the RIPE address blocks: 14222
RIPE Region origin ASes present in the Internet Routing Table: 5298
RIPE Region origin ASes announcing only one prefix: 2827
RIPE Region transit ASes present in the Internet Routing Table: 917
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 157323264
Equivalent to 9 /8s, 96 /16s and 144 /24s
Percentage of available RIPE address space announced: 72.1
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599, 28672 - 29695
30720 - 31743
RIPE Address Blocks 62/8, 80/6, 84/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5731
Total LACNIC prefixes after maximum aggregation: 2204
Prefixes being announced from the LACNIC address blocks: 5415
Unique aggregates announced from the LACNIC address blocks: 3383
LACNIC Region origin ASes present in the Internet Routing Table: 371
LACNIC Region origin ASes announcing only one prefix: 102
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14384640
Equivalent to 0 /8s, 219 /16s and 126 /24s
Percentage of available LACNIC address space announced: 42.9
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1198
Total AfriNIC prefixes after maximum aggregation: 683
Prefixes being announced from the AfriNIC address blocks: 738
Unique aggregates announced from the AfriNIC address blocks: 558
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 25
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1839360
Equivalent to 0 /8s, 28 /16s and 17 /24s
Percentage of available AfriNIC address space announced: 11.0
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 867 1107 628 Telstra Pty Ltd
4134 665 2847 117 Data Communications Bureau
4766 459 2916 250 Korea Internet Exchange for "
9583 386 42 32 Satyam Infoway Ltd.,
4755 365 129 53 Videsh Sanchar Nigam Ltd. Aut
2907 359 1846 335 SINET Japan
9443 355 69 80 Primus Telecommunications
703 340 374 262 UUNET
17557 329 23 168 Pakistan Telecom
17676 299 4412 39 XTAGE CORPORATION
2764 296 275 241 connect.com.au pty ltd
7474 273 300 214 Optus Communications Pty Ltd
9942 230 72 132 COMindico Australia
9929 228 155 30 China Netcom Corp.
9800 214 347 55 CHINA UNICOM
9498 197 31 41 BHARTI BT INTERNET LTD.
4780 188 193 26 Digital United Inc.
4837 174 1571 102 chinanet IDC center beijing n
9304 168 159 23 Hutchison Telecom (HK)
7633 153 23 44 Software Technology Parks of
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1416 7020 992 AT&T
701 1326 8561 954 UUNET Technologies, Inc.
1239 951 3051 649 Sprint
3356 878 10942 683 Level 3 Communications, LLC
209 724 3502 508 Qwest
4323 699 558 200 Time Warner Communications, I
18566 693 192 8 Covad Communications
6197 688 458 270 BellSouth Network Solutions,
20115 596 348 310 Charter Communications
6198 550 354 195 BellSouth Network Solutions,
7843 537 604 112 Adelphia Corp.
852 514 1127 404 Telus Advanced Communications
7066 500 207 272 Virginia Polytechnic Institut
7132 478 7834 330 Southwestern Bell Internet Se
2386 427 579 230 AT&T Data Communications Serv
27364 404 29 23 Armstrong Cable Services
690 397 58 267 Merit Network
4355 396 323 103 EarthLink, Inc.
22909 380 839 26 Comcast Cable Corporation
376 379 343 112 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 670 2039 560 UUNET - Commercial IP service
3301 337 1178 316 TeliaNet Sweden
3320 288 2477 236 Deutsche Telekom AG
8220 263 410 251 COLT Internet - International
680 244 2027 240 DFN-IP service G-WiN
1257 236 510 196 SWIPnet Swedish IP Network
719 231 288 103 LANLINK autonomous system
13083 216 51 8 Mannesmann Datenverarbeitung
3246 195 451 193 Song Networks
786 175 1826 175 The JANET IP Service
8708 173 111 162 Romania Data Systems S.A.
5515 167 762 134 Sonera Solution Autonomous Sy
25186 167 187 109 France Telecom Transpac's Tra
3215 166 819 72 France Telecom Transpac
5400 150 225 135 BT Ignite European Backbone
3303 137 620 137 Swisscom Ltd
6746 135 27 113 Dynamic Network Technologies,
3269 129 1069 64 TELECOM ITALIA
12302 121 17 28 MobiFon S.A.
1273 119 169 92 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 379 123 65 ImpSat
8151 263 373 131 UniNet S.A. de C.V.
11172 207 75 43 Servicios Alestra S.A de C.V
16814 156 11 6 NSS, S.A.
6503 140 220 94 AVANTEL, S.A.
7303 136 51 31 Telecom Argentina Stet-France
6147 132 78 20 Telefonica Del Peru
6505 132 90 92 Global One Communicaoes Ltda
11556 88 73 25 Cable-Wireless Panama
11992 88 9 28 Integrated Systems
6535 79 5 19 Chilesat Servicios Empresari
15311 77 18 38 Telefonica Empresas
4270 71 18 9 Red de Interconexion Universi
14535 70 6 5 Techtel S.A.
11311 69 7 16 Sinectis S.A.
5639 64 7 13 Telecommunications Services o
7080 64 4 1 Electronica y Comunicaciones
14420 64 4 23 ANDINATEL S.A.
7738 63 234 14 Telecomunicacoes da Bahia S.A
10292 63 6 25 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 252 632 219 The Internet Solution
5536 104 7 12 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 89 272 79 The Internetworking Company o
2561 51 6 2 Egyptian Universities Network
11845 36 9 11 Data Pro Business Online
3208 33 2 1 ARN Network
9129 32 3 4 UUNET Kenya
16637 25 9 18 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
12455 24 4 2 Jambonet Autonomous system
24835 23 18 6 RAYA Telecom - Egypt
6713 22 38 9 Itissalat Al-MAGHRIB
8524 22 2 4 AUCEGYPT Autonomous System
14988 22 16 1 Botswana Telecommunications C
10798 18 1 12 Standard Bank of South Africa
15706 16 2 3 Sudatel Internet Exchange Aut
15808 16 1 7 Communication Solutions Ltd i
12258 15 3 10 Vodacom Internet Company
20928 15 16 1 Noor Advanced Technologies AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 693 685 Covad Communications
4134 665 548 Data Communications Bureau
4323 699 499 Time Warner Communications, I
7843 537 425 Adelphia Corp.
6197 688 418 BellSouth Network Solutions,
27364 404 381 Armstrong Cable Services
701 1326 372 UUNET Technologies, Inc.
6198 550 355 BellSouth Network Solutions,
9583 386 354 Satyam Infoway Ltd.,
22909 380 354 Comcast Cable Corporation
5668 357 342 Century Telephone
22773 359 320 Cox Communications, Inc. Atla
6140 379 314 ImpSat
4755 365 312 Videsh Sanchar Nigam Ltd. Aut
1239 951 302 Sprint
4355 396 293 EarthLink, Inc.
6347 374 290 SAVVIS Communications Corpora
20115 596 286 Charter Communications
9443 355 275 Primus Telecommunications
376 379 267 Reseau Interordinateurs Scien
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
29975 UNALLOCATED 196.46.160.0/20 3741 The Internet Solutio
64541 PRIVATE 209.120.215.0/24 22551 Anobi Technology Cor
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
164.234.0.0/18 721 DLA Systems Automation Center
164.234.0.0/16 721 DLA Systems Automation Center
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 568 DISO-UNRRA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:6 /11:15 /12:57
/13:107 /14:292 /15:509 /16:7641 /17:1952 /18:3527
/19:9170 /20:9568 /21:6989 /22:9823 /23:11329 /24:73939
/25:192 /26:286 /27:163 /28:30 /29:4 /30:41
/31:0 /32:11
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 676 693 Covad Communications
6197 528 688 BellSouth Network Solutions,
7018 512 1416 AT&T
3356 485 878 Level 3 Communications, LLC
702 409 670 UUNET - Commercial IP service
6198 398 550 BellSouth Network Solutions,
27364 397 404 Armstrong Cable Services
7066 395 500 Virginia Polytechnic Institut
701 361 1326 UUNET Technologies, Inc.
690 360 397 Merit Network
1239 355 951 Sprint
20115 348 596 Charter Communications
5668 315 357 Century Telephone
4766 281 459 Korea Internet Exchange for "
25844 244 244 Skadden, Arps, Slate, Meagher
19029 241 370 New Edge Networks
9583 240 386 Satyam Infoway Ltd.,
3320 235 288 Deutsche Telekom AG
6517 230 252 Yipes Communications, Inc.
14824 219 244 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:810 13:1 15:4 16:1 17:3
20:7 24:814 32:83 38:56 40:54 44:3
55:1 56:1 57:13 61:380 62:478 63:1818
64:1886 65:1931 66:2474 67:288 68:587 69:453
80:452 81:253 82:140 83:22 128:144 129:252
130:83 131:78 132:16 134:180 135:17 136:188
137:105 138:150 139:37 140:145 141:146 142:109
143:49 144:75 145:40 146:298 147:77 148:371
149:89 150:96 151:62 152:216 153:62 154:1
155:123 156:61 157:55 158:146 159:152 160:50
161:55 162:374 163:79 164:323 165:164 166:100
167:210 168:209 169:99 170:297 171:8 192:5527
193:2634 194:2027 195:1350 196:522 198:3651 199:2968
200:3232 201:7 202:4504 203:5450 204:2983 205:1985
206:2208 207:2590 208:2326 209:2913 210:1169 211:517
212:933 213:1072 214:26 215:26 216:3329 217:883
218:161 219:105 220:194 221:25 222:15
End of report
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