[rtma] Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Oct 10 14:07:47 EDT 2003
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 11 Oct, 2003
Analysis Summary
----------------
BGP routing table entries examined: 129726
Prefixes after maximum aggregation: 80542
Unique aggregates announced to Internet: 62134
Total ASes present in the Internet Routing Table: 15968
Origin-only ASes present in the Internet Routing Table: 13854
Origin ASes announcing only one prefix: 6293
Transit ASes present in the Internet Routing Table: 2114
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 5
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1245930024
Equivalent to 74 /8s, 67 /16s and 98 /24s
Percentage of available address space announced: 33.6
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57785
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22883
Total APNIC prefixes after maximum aggregation: 12872
Prefixes being announced from the APNIC address blocks: 21290
Unique aggregates announced from the APNIC address blocks: 12389
APNIC Region origin ASes present in the Internet Routing Table: 1909
APNIC Region origin ASes announcing only one prefix: 545
APNIC Region transit ASes present in the Internet Routing Table: 305
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 123575296
Equivalent to 7 /8s, 93 /16s and 156 /24s
Percentage of available APNIC address space announced: 66.6
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: 78328
Total ARIN prefixes after maximum aggregation: 48714
Prefixes being announced from the ARIN address blocks: 55870
Unique aggregates announced from the ARIN address blocks: 17408
ARIN Region origin ASes present in the Internet Routing Table: 8728
ARIN Region origin ASes announcing only one prefix: 3005
ARIN Region transit ASes present in the Internet Routing Table: 849
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 197874976
Equivalent to 11 /8s, 203 /16s and 85 /24s
Percentage of available ARIN address space announced: 73.7
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 22799
Total RIPE prefixes after maximum aggregation: 16686
Prefixes being announced from the RIPE address blocks: 19323
Unique aggregates announced from the RIPE address blocks: 13006
RIPE Region origin ASes present in the Internet Routing Table: 4907
RIPE Region origin ASes announcing only one prefix: 2636
RIPE Region transit ASes present in the Internet Routing Table: 858
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 137068352
Equivalent to 8 /8s, 43 /16s and 127 /24s
Percentage of available RIPE address space announced: 74.3
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, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5712
Total LACNIC prefixes after maximum aggregation: 2270
Prefixes being announced from the LACNIC address blocks: 5189
Unique aggregates announced from the LACNIC address blocks: 3216
LACNIC Region origin ASes present in the Internet Routing Table: 358
LACNIC Region origin ASes announcing only one prefix: 107
LACNIC Region transit ASes present in the Internet Routing Table: 75
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 14
Number of LACNIC addresses announced to Internet: 13352704
Equivalent to 0 /8s, 203 /16s and 191 /24s
Percentage of available LACNIC address space announced: 39.8
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 972 1110 689 Telstra Pty Ltd
4755 394 134 71 Videsh Sanchar Nigam Ltd. Aut
2907 368 1879 345 SINET Japan
4134 364 2223 105 Data Communications Bureau
703 336 372 267 UUNET
2764 297 290 260 connect.com.au pty ltd
17557 297 25 150 Pakistan Telecom
17676 272 4012 33 XTAGE CORPORATION
7474 262 305 208 Optus Communications Pty Ltd
4766 241 2462 176 Korea Internet Exchange for "
9583 234 43 9 Satyam Infoway Ltd.,
3786 233 773 203 DACOM Corporation
4538 209 1714 21 China Education and Research
9800 203 332 52 CHINA UNICOM
9942 194 69 119 COMindico Australia
9929 190 160 36 China Netcom Corp.
9498 185 20 18 BHARTI BT INTERNET LTD.
9443 183 62 82 Primus Telecommunications
17642 154 40 116 RequestDSL BGP AS# for Sydney
4739 143 58 132 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1458 8702 1012 UUNET Technologies, Inc.
7018 1398 7127 974 AT&T
6198 1216 330 195 BellSouth Network Solutions,
6197 994 442 247 BellSouth Network Solutions,
3908 945 1577 511 Supernet, Inc.
1239 923 3003 668 Sprint
18566 708 176 8 Covad Communications
4323 677 575 196 Time Warner Communications, I
3356 590 10828 493 Level 3 Communications, LLC
7843 532 473 138 Adelphia Corp.
852 517 1123 411 Telus Advanced Communications
209 506 2146 289 Qwest
7066 506 206 267 Virginia Polytechnic Institut
20115 473 206 288 Charter Communications
690 411 59 276 Merit Network
705 401 184 245 UUNET Technologies, Inc.
4355 393 332 108 EarthLink, Inc.
2386 383 508 200 AT&T Data Communications Serv
376 359 359 115 Reseau Interordinateurs Scien
6347 348 381 80 SAVVIS Communications Corpora
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 713 2101 592 UUNET - Commercial IP service
3301 298 1169 286 TeliaNet Sweden
3320 277 2005 237 Deutsche Telekom AG
8220 257 435 246 COLT Internet - International
1257 243 438 191 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
719 193 307 123 LANLINK autonomous system
3215 193 721 100 France Telecom Transpac
5400 187 173 135 BT Ignite European Backbone
5515 185 778 147 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 158 111 154 Romania Data Systems S.A.
3303 149 556 142 Swisscom Ltd
3246 128 376 126 Song Networks
12302 127 18 34 MobiFon S.A.
3269 119 853 65 TELECOM ITALIA
2856 114 1293 105 BTnet UK Regional network
25186 113 160 77 France Telecom Transpac's Tra
2647 100 4225 48 SITA
3352 98 824 34 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 339 103 98 ImpSat
7303 328 41 47 Telecom Argentina Stet-France
8151 235 367 123 UniNet S.A. de C.V.
11172 184 77 42 Servicios Alestra S.A de C.V
16814 156 10 5 NSS, S.A.
6503 130 205 94 AVANTEL, S.A.
10620 123 8 26 TVCABLE BOGOTA
10834 110 82 35 ADVANCE TELECOMUNICACIONES S.
11340 104 3 30 Red Universitaria Nacional
6147 86 70 19 Telefonica Del Peru
11992 86 24 30 Integrated Systems
8065 83 8 17 Empresas Publicas de Medellin
6505 82 84 70 Global One Communicaoes Ltda
15311 77 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
11830 74 22 25 Instituto Costarricense de El
4270 68 18 9 Red de Interconexion Universi
7927 66 6 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
1916 60 266 40 Fundacao de Amparo a Pesquisa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6198 1216 1021 BellSouth Network Solutions,
6197 994 747 BellSouth Network Solutions,
18566 708 700 Covad Communications
4323 677 481 Time Warner Communications, I
3908 945 434 Supernet, Inc.
7018 1398 424 AT&T
7843 532 394 Adelphia Corp.
4755 394 323 Videsh Sanchar Nigam Ltd. Aut
5668 308 292 Century Telephone
27364 314 291 Armstrong Cable Services
4355 393 285 EarthLink, Inc.
22909 299 284 Comcast Cable Corporation
1221 972 283 Telstra Pty Ltd
7303 328 281 Telecom Argentina Stet-France
6347 348 268 SAVVIS Communications Corpora
4134 364 259 Data Communications Bureau
1239 923 255 Sprint
22773 288 252 Cox Communications, Inc. Atla
376 359 244 Reseau Interordinateurs Scien
6140 339 241 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65158 PRIVATE 24.208.192.0/19 12262 RoadRunner-Cincinatt
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
65400 PRIVATE 149.165.240.0/21 11537 University Corporati
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65100 PRIVATE 210.104.28.0/25 9768 Korea 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
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
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.153.136.0/21 568 DISO-UNRRA
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 /9:4 /10:6 /11:12 /12:55
/13:98 /14:268 /15:469 /16:7430 /17:1776 /18:3188
/19:8493 /20:8917 /21:6558 /22:9387 /23:10785 /24:71539
/25:168 /26:226 /27:163 /28:40 /29:24 /30:58
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6198 1092 1216 BellSouth Network Solutions,
6197 854 994 BellSouth Network Solutions,
18566 702 708 Covad Communications
3908 602 945 Supernet, Inc.
7018 501 1398 AT&T
701 441 1458 UUNET Technologies, Inc.
702 429 713 UUNET - Commercial IP service
7066 400 506 Virginia Polytechnic Institut
690 371 411 Merit Network
1239 327 923 Sprint
20115 316 473 Charter Communications
27364 308 314 Armstrong Cable Services
3356 283 590 Level 3 Communications, LLC
5668 274 308 Century Telephone
25844 243 243 Skadden, Arps, Slate, Meagher
3320 219 277 Deutsche Telekom AG
4355 215 393 EarthLink, Inc.
7843 212 532 Adelphia Corp.
209 203 506 Qwest
14824 199 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:710 13:1 15:6 16:1 17:3
20:6 24:821 25:1 32:103 38:50 40:23
43:1 44:2 55:1 57:14 61:329 62:435
63:1877 64:1812 65:2121 66:2289 67:437 68:855
69:279 80:419 81:174 82:17 128:148 129:153
130:64 131:83 132:43 134:166 135:10 136:178
137:120 138:131 139:50 140:164 141:137 142:101
143:48 144:88 145:21 146:279 147:68 148:302
149:78 150:121 151:66 152:212 153:58 154:7
155:131 156:58 157:54 158:140 159:143 160:45
161:69 162:362 163:68 164:317 165:152 166:100
167:304 168:176 169:96 170:316 171:9 192:5437
193:2431 194:1994 195:1183 196:480 198:3581 199:2848
200:3204 202:4047 203:5300 204:2997 205:2056 206:2294
207:2514 208:2633 209:2784 210:918 211:379 212:943
213:944 214:15 215:22 216:3277 217:754 218:109
219:41 220:115 221:13 222:1
End of report
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