[rtma] Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Sep 5 14:07:43 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 06 Sep, 2003
Analysis Summary
----------------
BGP routing table entries examined: 127889
Prefixes after maximum aggregation: 80070
Unique aggregates announced to Internet: 61705
Total ASes present in the Internet Routing Table: 15765
Origin-only ASes present in the Internet Routing Table: 13660
Origin ASes announcing only one prefix: 6213
Transit ASes present in the Internet Routing Table: 2105
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 5.2
Max AS path length visible: 27
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: 15
Number of addresses announced to Internet: 1241725984
Equivalent to 74 /8s, 3 /16s and 60 /24s
Percentage of available address space announced: 33.5
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 56833
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22378
Total APNIC prefixes after maximum aggregation: 12697
Prefixes being announced from the APNIC address blocks: 20798
Unique aggregates announced from the APNIC address blocks: 12420
APNIC Region origin ASes present in the Internet Routing Table: 1888
APNIC Region origin ASes announcing only one prefix: 540
APNIC Region transit ASes present in the Internet Routing Table: 308
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 121384448
Equivalent to 7 /8s, 60 /16s and 46 /24s
Percentage of available APNIC address space announced: 65.4
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: 77717
Total ARIN prefixes after maximum aggregation: 48634
Prefixes being announced from the ARIN address blocks: 55389
Unique aggregates announced from the ARIN address blocks: 17345
ARIN Region origin ASes present in the Internet Routing Table: 8627
ARIN Region origin ASes announcing only one prefix: 2954
ARIN Region transit ASes present in the Internet Routing Table: 845
Average ARIN Region AS path length visible: 5.0
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 196641824
Equivalent to 11 /8s, 184 /16s and 132 /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
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: 22370
Total RIPE prefixes after maximum aggregation: 16438
Prefixes being announced from the RIPE address blocks: 18907
Unique aggregates announced from the RIPE address blocks: 12774
RIPE Region origin ASes present in the Internet Routing Table: 4831
RIPE Region origin ASes announcing only one prefix: 2622
RIPE Region transit ASes present in the Internet Routing Table: 852
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 135755584
Equivalent to 8 /8s, 23 /16s and 119 /24s
Percentage of available RIPE address space announced: 73.6
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
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: 5422
Total LACNIC prefixes after maximum aggregation: 2301
Prefixes being announced from the LACNIC address blocks: 4895
Unique aggregates announced from the LACNIC address blocks: 3147
LACNIC Region origin ASes present in the Internet Routing Table: 346
LACNIC Region origin ASes announcing only one prefix: 97
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.6
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 13127680
Equivalent to 0 /8s, 200 /16s and 80 /24s
Percentage of available LACNIC address space announced: 39.1
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 984 1125 697 Telstra Pty Ltd
4755 403 135 73 Videsh Sanchar Nigam Ltd. Aut
2907 377 1912 351 SINET Japan
703 339 373 269 UUNET
4134 330 2220 111 Data Communications Bureau
17557 303 22 134 Pakistan Telecom
2764 288 322 257 connect.com.au pty ltd
7474 264 291 205 Optus Communications Pty Ltd
17676 256 3942 20 XTAGE CORPORATION
9583 244 37 20 Satyam Infoway Ltd.,
3786 237 773 203 DACOM Corporation
4766 229 2461 171 Korea Internet Exchange for "
9800 202 332 51 CHINA UNICOM
9443 186 58 82 Primus Telecommunications
9498 182 16 32 BHARTI BT INTERNET LTD.
9929 172 157 35 China Netcom Corp.
4538 170 1538 21 China Education and Research
9942 156 69 100 COMindico Australia
17642 155 41 116 RequestDSL BGP AS# for Sydney
9238 140 9 21 TATA ISP
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1482 8768 1049 UUNET Technologies, Inc.
7018 1384 7123 971 AT&T
3908 926 1573 492 Supernet, Inc.
1239 906 3030 653 Sprint
189 674 451 334 Genuity
18566 674 160 8 Covad Communications
4323 633 552 181 Time Warner Communications, I
6197 612 395 270 BellSouth Network Solutions,
7843 553 426 167 Adelphia Corp.
852 516 1123 410 Telus Advanced Communications
209 505 2129 294 Qwest
6198 496 277 197 BellSouth Network Solutions,
7066 492 205 263 Virginia Polytechnic Institut
20115 483 203 292 Charter Communications
3356 476 10675 395 Level 3 Communications, LLC
1 463 1054 296 GENUITY
705 418 185 257 UUNET Technologies, Inc.
690 411 59 276 Merit Network
4355 393 340 111 EarthLink, Inc.
10753 390 80 195 XCOM Technologies, INC.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 720 2121 598 UUNET - Commercial IP service
3301 295 1168 282 TeliaNet Sweden
3320 269 1989 229 Deutsche Telekom AG
8220 246 431 235 COLT Internet - International
1257 245 374 186 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
3215 212 736 118 France Telecom Transpac
719 193 307 123 LANLINK autonomous system
5515 185 779 148 Sonera Solution Autonomous Sy
5400 180 175 131 BT Ignite European Backbone
786 178 1858 178 The JANET IP Service
8708 158 111 154 Romania Data Systems S.A.
3303 143 540 140 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
3246 124 376 122 Song Networks
3269 116 819 63 TELECOM ITALIA
2856 113 1295 104 BTnet UK Regional network
3352 104 824 34 Ibernet, Internet Access Netw
2647 101 4129 45 SITA
6746 88 12 75 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 332 103 106 ImpSat
7303 240 39 57 Telecom Argentina Stet-France
8151 230 366 119 UniNet S.A. de C.V.
11172 189 95 45 Servicios Alestra S.A de C.V
16814 151 10 17 NSS, S.A.
6503 132 189 94 AVANTEL, S.A.
10620 127 8 28 TVCABLE BOGOTA
11340 104 3 36 Red Universitaria Nacional
11992 88 8 37 Integrated Systems
6147 85 70 17 Telefonica Del Peru
8065 80 8 17 Empresas Publicas de Medellin
6535 75 5 18 Chilesat Servicios Empresari
15311 75 14 38 Telefonica Empresas
11830 73 21 27 Instituto Costarricense de El
1916 72 305 42 Fundacao de Amparo a Pesquisa
4270 68 18 9 Red de Interconexion Universi
7927 68 6 41 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
13999 62 36 8 Mega Cable S.A. de C.V.
7984 59 12 40 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 674 666 Covad Communications
4323 633 452 Time Warner Communications, I
3908 926 434 Supernet, Inc.
7018 1384 413 AT&T
7843 553 386 Adelphia Corp.
6197 612 342 BellSouth Network Solutions,
189 674 340 Genuity
4755 403 330 Videsh Sanchar Nigam Ltd. Aut
6198 496 299 BellSouth Network Solutions,
27364 317 294 Armstrong Cable Services
1221 984 287 Telstra Pty Ltd
4355 393 282 EarthLink, Inc.
6347 355 275 SAVVIS Communications Corpora
22909 292 273 Comcast Cable Corporation
1239 906 253 Sprint
25844 241 239 Skadden, Arps, Slate, Meagher
376 352 237 Reseau Interordinateurs Scien
17676 256 236 XTAGE CORPORATION
22773 253 232 Cox Communications, Inc. Atla
7066 492 229 Virginia Polytechnic Institut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
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
189.186.184.0/24 4471 Michigan Internet Cooperative
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 /8:20 /9:4 /10:6 /11:12 /12:55
/13:98 /14:263 /15:475 /16:7422 /17:1745 /18:3086
/19:8429 /20:8741 /21:6416 /22:9418 /23:10926 /24:70136
/25:165 /26:209 /27:146 /28:26 /29:13 /30:51
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 668 674 Covad Communications
189 589 674 Genuity
3908 586 926 Supernet, Inc.
7018 494 1384 AT&T
6197 476 612 BellSouth Network Solutions,
701 442 1482 UUNET Technologies, Inc.
702 436 720 UUNET - Commercial IP service
7066 388 492 Virginia Polytechnic Institut
6198 386 496 BellSouth Network Solutions,
10753 376 390 XCOM Technologies, INC.
690 371 411 Merit Network
20115 328 483 Charter Communications
1239 314 906 Sprint
27364 311 317 Armstrong Cable Services
7843 263 553 Adelphia Corp.
25844 241 241 Skadden, Arps, Slate, Meagher
4355 211 393 EarthLink, Inc.
3320 208 269 Deutsche Telekom AG
3356 207 476 Level 3 Communications, LLC
1 202 463 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:705 13:1 15:4 16:1 17:4
20:6 24:843 25:1 32:84 38:44 40:23
44:2 55:1 57:14 61:308 62:397 63:1858
64:1767 65:2018 66:2703 67:273 68:389 69:260
80:414 81:119 82:15 128:146 129:171 130:62
131:84 132:14 134:172 135:7 136:187 137:110
138:126 139:48 140:154 141:133 142:100 143:44
144:90 145:13 146:274 147:62 148:339 149:78
150:121 151:69 152:218 153:57 154:4 155:126
156:59 157:50 158:128 159:135 160:44 161:75
162:360 163:76 164:316 165:145 166:97 167:313
168:178 169:95 170:322 171:9 189:1 192:5384
193:2457 194:1979 195:1120 196:469 198:3608 199:2752
200:3028 202:3910 203:5256 204:2993 205:2037 206:2327
207:2490 208:2563 209:2727 210:902 211:357 212:964
213:915 214:16 215:22 216:3227 217:713 218:105
219:35 220:102 221:10
End of report
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