[rtma] Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Apr 2 13:05:09 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 03 Apr, 2004
Analysis Summary
----------------
BGP routing table entries examined: 136188
Prefixes after maximum aggregation: 82840
Unique aggregates announced to Internet: 65992
Total ASes present in the Internet Routing Table: 16972
Origin-only ASes present in the Internet Routing Table: 14720
Origin ASes announcing only one prefix: 6791
Transit ASes present in the Internet Routing Table: 2252
Transit-only ASes present in the Internet Routing Table: 78
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: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 18
Number of addresses announced to Internet: 1274647268
Equivalent to 75 /8s, 249 /16s and 146 /24s
Percentage of available address space announced: 34.4
Percentage of allocated address space announced: 57.3
Percentage of available address space allocated: 60.0
Total number of prefixes smaller than registry allocations: 61146
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 25731
Total APNIC prefixes after maximum aggregation: 13593
Prefixes being announced from the APNIC address blocks: 24049
Unique aggregates announced from the APNIC address blocks: 13515
APNIC Region origin ASes present in the Internet Routing Table: 2037
APNIC Region origin ASes announcing only one prefix: 610
APNIC Region transit ASes present in the Internet Routing Table: 325
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 140351488
Equivalent to 8 /8s, 93 /16s and 152 /24s
Percentage of available APNIC address space announced: 75.6
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: 78765
Total ARIN prefixes after maximum aggregation: 48587
Prefixes being announced from the ARIN address blocks: 60759
Unique aggregates announced from the ARIN address blocks: 21420
ARIN Region origin ASes present in the Internet Routing Table: 9072
ARIN Region origin ASes announcing only one prefix: 3214
ARIN Region transit ASes present in the Internet Routing Table: 890
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 221260320
Equivalent to 13 /8s, 48 /16s and 42 /24s
Percentage of available ARIN address space announced: 73.3
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: 24799
Total RIPE prefixes after maximum aggregation: 17781
Prefixes being announced from the RIPE address blocks: 21629
Unique aggregates announced from the RIPE address blocks: 14286
RIPE Region origin ASes present in the Internet Routing Table: 5321
RIPE Region origin ASes announcing only one prefix: 2842
RIPE Region transit ASes present in the Internet Routing Table: 924
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 157584640
Equivalent to 9 /8s, 100 /16s and 141 /24s
Percentage of available RIPE address space announced: 55.3
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, 80/5, 88/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5733
Total LACNIC prefixes after maximum aggregation: 2195
Prefixes being announced from the LACNIC address blocks: 5406
Unique aggregates announced from the LACNIC address blocks: 3392
LACNIC Region origin ASes present in the Internet Routing Table: 371
LACNIC Region origin ASes announcing only one prefix: 100
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14465024
Equivalent to 0 /8s, 220 /16s and 184 /24s
Percentage of available LACNIC address space announced: 43.1
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1159
Total AfriNIC prefixes after maximum aggregation: 684
Prefixes being announced from the AfriNIC address blocks: 747
Unique aggregates announced from the AfriNIC address blocks: 588
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: 4.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1839104
Equivalent to 0 /8s, 28 /16s and 16 /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 866 1107 627 Telstra Pty Ltd
4134 705 2991 118 Data Communications Bureau
4766 461 2916 251 Korea Internet Exchange for "
9583 432 38 105 Satyam Infoway Ltd.,
4755 364 129 52 Videsh Sanchar Nigam Ltd. Aut
2907 358 1862 334 SINET Japan
9443 355 69 80 Primus Telecommunications
703 341 374 263 UUNET
17557 321 23 160 Pakistan Telecom
17676 308 4556 42 XTAGE CORPORATION
9929 304 155 30 China Netcom Corp.
2764 295 274 241 connect.com.au pty ltd
7474 271 300 215 Optus Communications Pty Ltd
9942 224 71 127 COMindico Australia
9800 217 348 58 CHINA UNICOM
9498 190 31 42 BHARTI BT INTERNET LTD.
4780 189 193 26 Digital United Inc.
4837 174 1571 102 chinanet IDC center beijing n
9304 168 159 23 Hutchison Telecom (HK)
7633 160 23 50 Software Technology Parks of
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1418 6977 995 AT&T
701 1323 8561 952 UUNET Technologies, Inc.
1239 945 3040 641 Sprint
3356 877 10925 679 Level 3 Communications, LLC
209 729 3485 508 Qwest
18566 695 192 8 Covad Communications
4323 694 559 198 Time Warner Communications, I
6197 687 458 269 BellSouth Network Solutions,
20115 597 349 309 Charter Communications
6198 557 355 202 BellSouth Network Solutions,
7843 533 613 108 Adelphia Corp.
852 514 1127 404 Telus Advanced Communications
7066 499 207 271 Virginia Polytechnic Institut
7132 482 7847 332 Southwestern Bell Internet Se
2386 430 579 232 AT&T Data Communications Serv
27364 404 29 23 Armstrong Cable Services
4355 396 323 103 EarthLink, Inc.
690 393 57 267 Merit Network
22909 380 839 26 Comcast Cable Corporation
376 378 343 112 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 671 2039 561 UUNET - Commercial IP service
3320 287 2477 235 Deutsche Telekom AG
3301 271 984 262 TeliaNet Sweden
8220 265 412 253 COLT Internet - International
680 245 2027 240 DFN-IP service G-WiN
1257 233 510 195 SWIPnet Swedish IP Network
719 223 288 103 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.
3215 166 819 72 France Telecom Transpac
5515 166 762 133 Sonera Solution Autonomous Sy
25186 163 187 105 France Telecom Transpac's Tra
5400 153 225 138 BT Ignite European Backbone
3303 137 620 137 Swisscom Ltd
6746 135 27 113 Dynamic Network Technologies,
3269 134 1101 65 TELECOM ITALIA
12302 121 17 28 MobiFon S.A.
2856 116 1278 106 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 378 122 69 ImpSat
8151 266 373 131 UniNet S.A. de C.V.
11172 207 75 43 Servicios Alestra S.A de C.V
16814 162 11 6 NSS, S.A.
7303 140 52 30 Telecom Argentina Stet-France
6503 138 220 93 AVANTEL, S.A.
6505 132 90 92 Global One Communicaoes Ltda
6147 125 78 19 Telefonica Del Peru
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 69 18 9 Red de Interconexion Universi
11311 69 7 16 Sinectis S.A.
14535 69 6 5 Techtel S.A.
14420 65 4 24 ANDINATEL S.A.
5639 64 7 13 Telecommunications Services o
7080 64 4 1 Electronica y Comunicaciones
10292 63 6 25 TELECOMMUNICATIONS OF JAMAICA
7738 62 234 14 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 252 632 219 The Internet Solution
5536 105 7 13 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 89 272 79 The Internetworking Company o
11845 36 9 11 Data Pro Business Online
3208 33 2 1 ARN Network
9129 32 3 4 UUNET Kenya
14988 25 16 1 Botswana Telecommunications C
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 21 2 4 AUCEGYPT Autonomous System
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
2609 13 26 4 Tunisia BackBone AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 695 687 Covad Communications
4134 705 587 Data Communications Bureau
4323 694 496 Time Warner Communications, I
7843 533 425 Adelphia Corp.
6197 687 418 BellSouth Network Solutions,
27364 404 381 Armstrong Cable Services
701 1323 371 UUNET Technologies, Inc.
6198 557 355 BellSouth Network Solutions,
22909 380 354 Comcast Cable Corporation
5668 363 348 Century Telephone
9583 432 327 Satyam Infoway Ltd.,
22773 360 321 Cox Communications, Inc. Atla
4755 364 312 Videsh Sanchar Nigam Ltd. Aut
6140 378 309 ImpSat
1239 945 304 Sprint
4355 396 293 EarthLink, Inc.
20115 597 288 Charter Communications
6347 372 287 SAVVIS Communications Corpora
9443 355 275 Primus Telecommunications
9929 304 274 China Netcom Corp.
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
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
156.154.16.0/22 7786 Lockheed Martin IMS
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
172.64.34.0/24 12735 Netone Bilgi Ve Iletisim Hizm
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 /8:18 /9:3 /10:6 /11:15 /12:57
/13:108 /14:293 /15:510 /16:7651 /17:1963 /18:3540
/19:9228 /20:9623 /21:6985 /22:9861 /23:11395 /24:74230
/25:190 /26:268 /27:158 /28:30 /29:4 /30:41
/31:0 /32:11
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 678 695 Covad Communications
6197 527 687 BellSouth Network Solutions,
7018 519 1418 AT&T
3356 487 877 Level 3 Communications, LLC
702 409 671 UUNET - Commercial IP service
6198 404 557 BellSouth Network Solutions,
27364 397 404 Armstrong Cable Services
7066 394 499 Virginia Polytechnic Institut
701 364 1323 UUNET Technologies, Inc.
1239 358 945 Sprint
690 356 393 Merit Network
20115 348 597 Charter Communications
5668 318 363 Century Telephone
4766 283 461 Korea Internet Exchange for "
9583 279 432 Satyam Infoway Ltd.,
25844 244 244 Skadden, Arps, Slate, Meagher
19029 239 366 New Edge Networks
3320 234 287 Deutsche Telekom AG
9929 233 304 China Netcom Corp.
13609 232 272 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:820 13:1 15:4 16:1 17:3
20:8 24:812 32:83 38:56 40:54 44:3
45:5 55:1 56:1 57:13 61:386 62:481
63:1817 64:1901 65:1938 66:2491 67:286 68:588
69:461 80:481 81:255 82:144 83:23 128:143
129:262 130:94 131:78 132:16 134:181 135:16
136:190 137:105 138:149 139:42 140:147 141:146
142:109 143:49 144:90 145:40 146:301 147:77
148:371 149:89 150:96 151:63 152:215 153:62
154:1 155:125 156:58 157:55 158:146 159:155
160:50 161:55 162:374 163:80 164:325 165:164
166:98 167:207 168:211 169:101 170:294 171:8
172:1 192:5501 193:2614 194:2024 195:1363 196:532
198:3651 199:2987 200:3216 201:7 202:4485 203:5450
204:2984 205:1983 206:2207 207:2597 208:2321 209:2904
210:1304 211:543 212:951 213:1081 214:26 215:26
216:3329 217:888 218:156 219:104 220:195 221:25
222:17
End of report
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