[rtma] Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Mar 19 13:05:37 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 20 Mar, 2004
Analysis Summary
----------------
BGP routing table entries examined: 135465
Prefixes after maximum aggregation: 82500
Unique aggregates announced to Internet: 65130
Total ASes present in the Internet Routing Table: 16900
Origin-only ASes present in the Internet Routing Table: 14655
Origin ASes announcing only one prefix: 6783
Transit ASes present in the Internet Routing Table: 2245
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 4.6
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: 1289108580
Equivalent to 76 /8s, 214 /16s and 60 /24s
Percentage of available address space announced: 34.8
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 60535
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 25411
Total APNIC prefixes after maximum aggregation: 13423
Prefixes being announced from the APNIC address blocks: 23749
Unique aggregates announced from the APNIC address blocks: 13555
APNIC Region origin ASes present in the Internet Routing Table: 2029
APNIC Region origin ASes announcing only one prefix: 605
APNIC Region transit ASes present in the Internet Routing Table: 326
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 138562944
Equivalent to 8 /8s, 66 /16s and 77 /24s
Percentage of available APNIC address space announced: 74.7
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: 78356
Total ARIN prefixes after maximum aggregation: 48425
Prefixes being announced from the ARIN address blocks: 60688
Unique aggregates announced from the ARIN address blocks: 21268
ARIN Region origin ASes present in the Internet Routing Table: 9049
ARIN Region origin ASes announcing only one prefix: 3220
ARIN Region transit ASes present in the Internet Routing Table: 889
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 220540704
Equivalent to 13 /8s, 37 /16s and 47 /24s
Percentage of available ARIN address space announced: 73.0
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: 24768
Total RIPE prefixes after maximum aggregation: 17764
Prefixes being announced from the RIPE address blocks: 21524
Unique aggregates announced from the RIPE address blocks: 13682
RIPE Region origin ASes present in the Internet Routing Table: 5282
RIPE Region origin ASes announcing only one prefix: 2829
RIPE Region transit ASes present in the Internet Routing Table: 913
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 157884416
Equivalent to 9 /8s, 105 /16s and 32 /24s
Percentage of available RIPE address space announced: 72.4
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: 5723
Total LACNIC prefixes after maximum aggregation: 2196
Prefixes being announced from the LACNIC address blocks: 5359
Unique aggregates announced from the LACNIC address blocks: 3336
LACNIC Region origin ASes present in the Internet Routing Table: 370
LACNIC Region origin ASes announcing only one prefix: 103
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14355712
Equivalent to 0 /8s, 219 /16s and 13 /24s
Percentage of available LACNIC address space announced: 42.8
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1205
Total AfriNIC prefixes after maximum aggregation: 692
Prefixes being announced from the AfriNIC address blocks: 746
Unique aggregates announced from the AfriNIC address blocks: 559
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 26
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1839616
Equivalent to 0 /8s, 28 /16s and 18 /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 886 1102 629 Telstra Pty Ltd
4134 664 2751 117 Data Communications Bureau
4766 447 2914 244 Korea Internet Exchange for "
9583 395 37 105 Satyam Infoway Ltd.,
4755 364 129 53 Videsh Sanchar Nigam Ltd. Aut
2907 360 1847 336 SINET Japan
9443 357 70 81 Primus Telecommunications
703 342 374 263 UUNET
17557 333 23 169 Pakistan Telecom
17676 299 4412 39 XTAGE CORPORATION
2764 296 274 241 connect.com.au pty ltd
7474 271 304 211 Optus Communications Pty Ltd
9942 251 72 142 COMindico Australia
9929 226 155 30 China Netcom Corp.
9800 215 347 55 CHINA UNICOM
9498 196 31 38 BHARTI BT INTERNET LTD.
4837 171 1571 102 chinanet IDC center beijing n
4780 168 193 26 Digital United Inc.
9304 164 157 20 Hutchison Telecom (HK)
7633 160 23 44 Software Technology Parks of
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1410 7019 986 AT&T
701 1327 8574 955 UUNET Technologies, Inc.
1239 953 3084 654 Sprint
3356 861 10957 678 Level 3 Communications, LLC
209 721 3502 510 Qwest
4323 695 558 199 Time Warner Communications, I
18566 691 192 8 Covad Communications
6197 683 458 270 BellSouth Network Solutions,
20115 624 350 328 Charter Communications
6198 547 354 196 BellSouth Network Solutions,
7843 536 596 115 Adelphia Corp.
852 514 1127 404 Telus Advanced Communications
7066 500 207 272 Virginia Polytechnic Institut
7132 477 7834 329 Southwestern Bell Internet Se
2386 430 579 231 AT&T Data Communications Serv
690 397 58 267 Merit Network
4355 395 323 101 EarthLink, Inc.
27364 388 28 23 Armstrong Cable Services
376 380 343 112 Reseau Interordinateurs Scien
22909 374 833 24 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 672 2039 562 UUNET - Commercial IP service
3301 339 1178 318 TeliaNet Sweden
3320 288 2477 236 Deutsche Telekom AG
8220 264 410 251 COLT Internet - International
680 242 2027 238 DFN-IP service G-WiN
1257 236 510 196 SWIPnet Swedish IP Network
719 233 288 105 LANLINK autonomous system
13083 216 51 8 Mannesmann Datenverarbeitung
3246 194 451 192 Song Networks
786 175 1826 175 The JANET IP Service
8708 172 111 162 Romania Data Systems S.A.
1273 169 173 101 Cable & Wireless Deutschland
5515 167 762 134 Sonera Solution Autonomous Sy
3215 166 816 80 France Telecom Transpac
25186 165 186 107 France Telecom Transpac's Tra
5400 148 224 133 BT Ignite European Backbone
3303 137 620 137 Swisscom Ltd
6746 135 27 113 Dynamic Network Technologies,
3269 127 1069 64 TELECOM ITALIA
12302 121 17 28 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 379 123 65 ImpSat
8151 261 384 127 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 143 221 98 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
11992 99 9 28 Integrated Systems
11556 88 73 25 Cable-Wireless Panama
6535 79 5 19 Chilesat Servicios Empresari
15311 77 18 38 Telefonica Empresas
4270 71 18 9 Red de Interconexion Universi
11311 70 7 17 Sinectis S.A.
14535 69 6 5 Techtel 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 251 632 218 The Internet Solution
5536 104 7 12 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 272 80 The Internetworking Company o
2561 58 6 3 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
15825 16 1 9 Network Computer Systems Auto
12258 15 3 10 Vodacom Internet Company
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 691 683 Covad Communications
4134 664 547 Data Communications Bureau
4323 695 496 Time Warner Communications, I
7843 536 421 Adelphia Corp.
6197 683 413 BellSouth Network Solutions,
701 1327 372 UUNET Technologies, Inc.
27364 388 365 Armstrong Cable Services
6198 547 351 BellSouth Network Solutions,
22909 374 350 Comcast Cable Corporation
5668 353 338 Century Telephone
6140 379 314 ImpSat
22773 352 314 Cox Communications, Inc. Atla
4755 364 311 Videsh Sanchar Nigam Ltd. Aut
1239 953 299 Sprint
20115 624 296 Charter Communications
4355 395 294 EarthLink, Inc.
9583 395 290 Satyam Infoway Ltd.,
6347 372 290 SAVVIS Communications Corpora
9443 357 276 Primus Telecommunications
376 380 268 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 /8:20 /9:3 /10:6 /11:15 /12:57
/13:106 /14:291 /15:508 /16:7637 /17:1947 /18:3520
/19:9112 /20:9544 /21:6953 /22:9782 /23:11287 /24:73914
/25:202 /26:307 /27:161 /28:31 /29:7 /30:41
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 674 691 Covad Communications
6197 523 683 BellSouth Network Solutions,
7018 505 1410 AT&T
3356 470 861 Level 3 Communications, LLC
702 408 672 UUNET - Commercial IP service
6198 396 547 BellSouth Network Solutions,
7066 395 500 Virginia Polytechnic Institut
27364 381 388 Armstrong Cable Services
20115 376 624 Charter Communications
701 362 1327 UUNET Technologies, Inc.
690 360 397 Merit Network
1239 351 953 Sprint
5668 312 353 Century Telephone
4766 269 447 Korea Internet Exchange for "
25844 244 244 Skadden, Arps, Slate, Meagher
9583 242 395 Satyam Infoway Ltd.,
19029 241 371 New Edge Networks
3320 235 288 Deutsche Telekom AG
6517 231 253 Yipes Communications, Inc.
14824 231 256 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:813 13:1 15:4 16:1 17:3
20:6 24:830 32:84 38:53 40:56 44:3
55:1 56:1 57:13 61:385 62:496 63:1827
64:1890 65:1948 66:2412 67:286 68:578 69:449
80:473 81:273 82:131 83:14 128:142 129:254
130:75 131:78 132:16 134:178 135:16 136:150
137:107 138:152 139:45 140:148 141:146 142:108
143:49 144:71 145:40 146:298 147:76 148:370
149:85 150:97 151:62 152:216 153:60 154:1
155:124 156:61 157:57 158:147 159:144 160:51
161:55 162:376 163:78 164:321 165:164 166:110
167:208 168:210 169:99 170:301 171:8 192:5488
193:2645 194:2029 195:1321 196:523 198:3653 199:2965
200:3185 201:7 202:4511 203:5480 204:2977 205:1991
206:2244 207:2602 208:2358 209:2898 210:1186 211:506
212:920 213:1105 214:26 215:26 216:3337 217:866
218:154 219:105 220:192 221:20 222:6
End of report
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