Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Mar 8 05:05:07 EST 2002
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
For a graphical representation, please see http://www.apnic.net/stats/bgp.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 20:00 +10GMT Fri 08 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 109552
Prefixes after maximum aggregation: 72183
Unique aggregates announced to Internet: 51996
Total ASes present in the Internet Routing Table: 12692
Origin-only ASes present in the Internet Routing Table: 10991
Origin ASes announcing only one prefix: 4803
Transit ASes present in the Internet Routing Table: 1701
Transit-only ASes present in the Internet Routing Table: 56
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 7
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 15
Number of addresses announced to Internet: 1167658920
Equivalent to 69 /8s, 153 /16s and 15 /24s
Percentage of available address space announced: 31.5
Percentage of allocated address space announced: 59.6
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 73385
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17921
Total APNIC prefixes after maximum aggregation: 10655
Prefixes being announced from the APNIC address blocks: 16437
Unique aggregates announced from the APNIC address blocks: 9996
APNIC Region origin ASes present in the Internet Routing Table: 1455
APNIC Region origin ASes announcing only one prefix: 476
APNIC Region transit ASes present in the Internet Routing Table: 255
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 81482560
Equivalent to 4 /8s, 219 /16s and 83 /24s
Percentage of available APNIC address space announced: 60.2
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 73350
Total ARIN prefixes after maximum aggregation: 47375
Prefixes being announced from the ARIN address blocks: 51778
Unique aggregates announced from the ARIN address blocks: 16246
ARIN Region origin ASes present in the Internet Routing Table: 7518
ARIN Region origin ASes announcing only one prefix: 2351
ARIN Region transit ASes present in the Internet Routing Table: 766
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 189973956
Equivalent to 11 /8s, 82 /16s and 197 /24s
Percentage of available ARIN address space announced: 70.8
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 18281
Total RIPE prefixes after maximum aggregation: 14153
Prefixes being announced from the RIPE address blocks: 15019
Unique aggregates announced from the RIPE address blocks: 10004
RIPE Region origin ASes present in the Internet Routing Table: 3662
RIPE Region origin ASes announcing only one prefix: 1976
RIPE Region transit ASes present in the Internet Routing Table: 669
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 107343392
Equivalent to 6 /8s, 101 /16s and 238 /24s
Percentage of available RIPE address space announced: 71.1
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
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1299 1229 958 Telstra Pty Ltd
4538 462 1162 16 China Education and Research
2907 408 1959 372 SINET Japan
703 403 333 313 UUNET Technologies, Inc.
2764 385 360 361 connect.com.au pty ltd
9394 302 113 4 CHINA RAILWAY Internet(CRNET)
7474 295 289 200 Optus Communications Pty Ltd
4755 291 111 88 Videsh Sanchar Nigam Ltd. Aut
4134 274 1962 97 Data Communications Bureau
9443 273 44 63 Primus Telecommunications
17557 233 15 100 Pakistan Telecom
4766 213 1521 147 Korea Internet Exchange for "
7539 165 237 158 TANet2, sponsored by NSC, TAI
4804 148 84 68 Microplex PTY LTD
9768 147 385 89 Korea Telecom
9583 141 32 5 Satyam Infoway Ltd.,
4713 127 914 104 NTT Communications Corporatio
7657 123 22 86 The Internet Group Limited
4780 117 186 40 Digital United Inc.
17676 117 1872 17 XTAGE CORPORATION
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1041 2631 852 UUNET Technologies, Inc.
3301 396 924 350 TeliaNet Sweden
3215 261 570 157 France Telecom / &Equant
1257 236 487 232 SWIPnet Swedish IP Network
680 231 2147 230 DFN-IP service G-WiN
5515 216 697 173 Sonera Finland Autonomous Sys
5400 200 83 94 Concert European Core Network
3320 196 1964 171 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
8708 158 23 147 Romania Data Systems S.A.
719 132 289 118 LANLINK autonomous system
2856 131 790 120 BTnet UK Regional network
3303 124 579 124 Swisscom Ltd
12302 119 7 40 MobiFon S.A.
3269 116 693 70 TELECOM ITALIA
8297 115 37 65 Teleglobe Autonomous System i
517 101 226 99 KPNQwest Germany GmbH
9051 101 6 25 INCONET Autonomous System
2874 96 100 36 Global One Services AB
5511 91 192 79 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2140 8408 1539 UUNET Technologies, Inc.
7018 1209 7495 910 AT&T
3908 847 1659 480 Supernet, Inc.
1 836 8123 610 BBN Planet
1239 791 3381 622 Sprint
4323 639 435 252 Time Warner Communications, I
852 633 1128 414 Telus Advanced Communications
7046 626 835 410 UUNET Technologies, Inc.
209 545 1976 313 Qwest
7132 514 541 157 Southwestern Bell Internet Se
3549 478 843 243 Global Crossing
690 437 66 284 Merit Network
2914 422 2176 418 Verio, Inc.
2149 379 209 315 Performance Systems, Inc.
7843 379 305 50 Adelphia Corp.
705 369 114 260 UUNET Technologies, Inc.
3741 344 731 235 The Internet Solution
2386 337 356 192 AT&T Data Communications Serv
6197 330 215 168 BellSouth Network Solutions,
3561 325 2169 292 Cable & Wireless USA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 462 446 China Education and Research
4323 639 387 Time Warner Communications, I
3908 847 367 Supernet, Inc.
7132 514 357 Southwestern Bell Internet Se
1221 1299 341 Telstra Pty Ltd
7843 379 329 Adelphia Corp.
7018 1209 299 AT&T
9394 302 298 CHINA RAILWAY Internet(CRNET)
4151 306 290 USDA
6198 309 276 BellSouth Network Solutions,
11371 270 264 Rhythms NetConnections
6347 315 237 SAVVIS Communications Corpora
3549 478 235 Global Crossing
209 545 232 Qwest
7029 243 228 Alltel Information Services,
1 836 226 BBN Planet
852 633 219 Telus Advanced Communications
7046 626 216 UUNET Technologies, Inc.
9443 273 210 Primus Telecommunications
4355 242 205 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
23336 UNALLOCATED 65.163.175.0/24 701 UUNET Technologies,
23336 UNALLOCATED 65.166.167.0/24 701 UUNET Technologies,
23336 UNALLOCATED 65.171.130.0/24 701 UUNET Technologies,
23336 UNALLOCATED 65.222.19.0/24 701 UUNET Technologies,
23339 UNALLOCATED 66.181.32.0/20 701 UUNET Technologies,
23336 UNALLOCATED 204.182.49.0/24 701 UUNET Technologies,
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
96.0.0.0/20 3549 Global Crossing
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 BBN Planet
144.7.0.0/16 701 UUNET Technologies, Inc.
153.36.0.0/14 701 UUNET Technologies, Inc.
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.235.0.0/16 6025 US DOD NIC Unregistered
189.186.184.0/24 4471 Michigan Internet Cooperative
201.115.100.0/24 7018 AT&T
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:5 /10:8 /11:14 /12:35
/13:88 /14:232 /15:404 /16:7175 /17:1381 /18:2534
/19:7385 /20:6887 /21:4882 /22:7454 /23:9124 /24:60935
/25:228 /26:266 /27:120 /28:90 /29:111 /30:132
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1381 2140 UUNET Technologies, Inc.
1221 1156 1299 Telstra Pty Ltd
702 661 1041 UUNET Technologies, Inc.
7018 629 1209 AT&T
3908 583 847 Supernet, Inc.
4323 510 639 Time Warner Communications, I
1239 452 791 Sprint
7046 442 626 UUNET Technologies, Inc.
1 433 836 BBN Planet
690 433 437 Merit Network
852 388 633 Telus Advanced Communications
209 358 545 Qwest
2764 341 385 connect.com.au pty ltd
3549 341 478 Global Crossing
703 325 403 UUNET Technologies, Inc.
705 317 369 UUNET Technologies, Inc.
9394 289 302 CHINA RAILWAY Internet(CRNET)
2149 287 379 Performance Systems, Inc.
6197 279 330 BellSouth Network Solutions,
7066 272 301 Virginia Polytechnic Institut
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 9:1 12:485 13:10 15:1 17:5
20:2 24:760 25:1 32:68 38:9 40:6
44:1 57:15 61:283 62:171 63:1882 64:1149
65:1063 66:816 67:52 68:5 80:213 81:5
128:63 129:120 130:23 131:74 132:11 133:3
134:125 135:10 136:251 137:102 138:195 139:48
140:185 141:61 142:87 143:37 144:143 145:12
146:217 147:164 148:130 149:91 150:41 151:49
152:343 153:33 154:8 155:90 156:75 157:118
158:73 159:118 160:23 161:55 162:140 163:118
164:92 165:118 166:224 167:186 168:119 169:49
170:287 171:2 189:1 192:5435 193:2207 194:2064
195:800 196:429 198:3678 199:3232 200:2363 201:1
202:3041 203:4543 204:3321 205:2174 206:2507 207:2627
208:2559 209:2781 210:543 211:196 212:870 213:581
214:9 215:18 216:2976 217:441 218:21
End of report
More information about the Rtma
mailing list