Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Mar 15 05:04:55 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 15 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 109867
Prefixes after maximum aggregation: 72311
Unique aggregates announced to Internet: 52933
Total ASes present in the Internet Routing Table: 12759
Origin-only ASes present in the Internet Routing Table: 11041
Origin ASes announcing only one prefix: 4833
Transit ASes present in the Internet Routing Table: 1718
Transit-only ASes present in the Internet Routing Table: 59
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: 57
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: 1166095016
Equivalent to 69 /8s, 129 /16s and 50 /24s
Percentage of available address space announced: 31.5
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 73540
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17982
Total APNIC prefixes after maximum aggregation: 10697
Prefixes being announced from the APNIC address blocks: 16503
Unique aggregates announced from the APNIC address blocks: 10010
APNIC Region origin ASes present in the Internet Routing Table: 1461
APNIC Region origin ASes announcing only one prefix: 481
APNIC Region transit ASes present in the Internet Routing Table: 258
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 81733696
Equivalent to 4 /8s, 223 /16s and 40 /24s
Percentage of available APNIC address space announced: 60.4
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: 73466
Total ARIN prefixes after maximum aggregation: 47467
Prefixes being announced from the ARIN address blocks: 51950
Unique aggregates announced from the ARIN address blocks: 17120
ARIN Region origin ASes present in the Internet Routing Table: 7558
ARIN Region origin ASes announcing only one prefix: 2364
ARIN Region transit ASes present in the Internet Routing Table: 778
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 187781316
Equivalent to 11 /8s, 49 /16s and 80 /24s
Percentage of available ARIN address space announced: 70.0
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
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: 18363
Total RIPE prefixes after maximum aggregation: 14147
Prefixes being announced from the RIPE address blocks: 15145
Unique aggregates announced from the RIPE address blocks: 10078
RIPE Region origin ASes present in the Internet Routing Table: 3681
RIPE Region origin ASes announcing only one prefix: 1988
RIPE Region transit ASes present in the Internet Routing Table: 671
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 107554592
Equivalent to 6 /8s, 105 /16s and 39 /24s
Percentage of available RIPE address space announced: 71.2
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 1288 1228 950 Telstra Pty Ltd
4538 463 1162 16 China Education and Research
703 409 334 318 UUNET Technologies, Inc.
2907 405 1926 371 SINET Japan
2764 385 361 361 connect.com.au pty ltd
7474 298 289 202 Optus Communications Pty Ltd
4755 297 111 83 Videsh Sanchar Nigam Ltd. Aut
4134 274 1962 97 Data Communications Bureau
9443 274 44 63 Primus Telecommunications
9394 254 113 4 CHINA RAILWAY Internet(CRNET)
17557 236 15 99 Pakistan Telecom
4766 212 1520 148 Korea Internet Exchange for "
4804 165 84 68 Microplex PTY LTD
7539 164 253 161 TANet2, sponsored by NSC, TAI
9583 149 32 5 Satyam Infoway Ltd.,
9768 137 385 82 Korea Telecom
4713 127 906 104 NTT Communications Corporatio
7657 123 22 86 The Internet Group Limited
4780 118 186 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 1034 2611 844 UUNET Technologies, Inc.
3301 394 924 349 TeliaNet Sweden
3215 261 570 157 France Telecom / &Equant
1257 236 486 232 SWIPnet Swedish IP Network
680 231 2147 230 DFN-IP service G-WiN
5515 216 697 171 Sonera Finland Autonomous Sys
5400 198 83 93 Concert European Core Network
3320 197 1964 172 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
719 163 289 118 LANLINK autonomous system
8708 157 23 145 Romania Data Systems S.A.
2856 130 788 119 BTnet UK Regional network
3303 124 579 124 Swisscom Ltd
12302 123 8 44 MobiFon S.A.
8297 118 37 66 Teleglobe Autonomous System i
3269 116 693 70 TELECOM ITALIA
517 102 227 100 KPNQwest Germany GmbH
9051 101 6 25 INCONET Autonomous System
2874 97 100 37 Global One Services AB
5511 92 192 80 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2138 8355 1506 UUNET Technologies, Inc.
7018 1214 7510 908 AT&T
3908 846 1675 481 Supernet, Inc.
1 836 8123 610 BBN Planet
1239 796 3366 625 Sprint
4323 640 436 253 Time Warner Communications, I
852 628 1128 413 Telus Advanced Communications
7046 618 835 403 UUNET Technologies, Inc.
209 556 1993 322 Qwest
7132 518 545 158 Southwestern Bell Internet Se
3549 485 843 243 Global Crossing
690 436 67 282 Merit Network
2914 421 2177 418 Verio, Inc.
7843 385 313 50 Adelphia Corp.
705 381 116 273 UUNET Technologies, Inc.
2149 370 224 309 Performance Systems, Inc.
3741 345 731 235 The Internet Solution
2386 331 371 189 AT&T Data Communications Serv
6197 326 215 168 BellSouth Network Solutions,
3561 321 2183 287 Cable & Wireless USA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 463 447 China Education and Research
4323 640 387 Time Warner Communications, I
3908 846 365 Supernet, Inc.
7132 518 360 Southwestern Bell Internet Se
1221 1288 338 Telstra Pty Ltd
7843 385 335 Adelphia Corp.
7018 1214 306 AT&T
4151 305 289 USDA
6198 309 276 BellSouth Network Solutions,
11371 280 274 Rhythms NetConnections
9394 254 250 CHINA RAILWAY Internet(CRNET)
3549 485 242 Global Crossing
6347 318 237 SAVVIS Communications Corpora
209 556 234 Qwest
7029 245 230 Alltel Information Services,
1 836 226 BBN Planet
852 628 215 Telus Advanced Communications
7046 618 215 UUNET Technologies, Inc.
4755 297 214 Videsh Sanchar Nigam Ltd. Aut
9443 274 211 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64581 PRIVATE 192.89.47.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.49.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.158.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.183.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.190.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.191.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.192.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.193.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.194.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.130.46.0/24 5515 Sonera Finland Auton
64553 PRIVATE 192.130.156.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.194.181.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.194.236.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.194.244.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.194.245.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.194.246.0/23 5515 Sonera Finland Auton
64581 PRIVATE 192.194.248.0/23 5515 Sonera Finland Auton
64581 PRIVATE 193.208.88.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.209.70.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.209.129.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.210.27.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.210.59.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.210.120.0/23 5515 Sonera Finland Auton
64581 PRIVATE 193.210.122.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.210.123.0/24 5515 Sonera Finland Auton
64558 PRIVATE 193.211.44.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.211.61.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.89.71.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.89.164.0/22 5515 Sonera Finland Auton
64581 PRIVATE 194.89.246.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.89.248.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.89.249.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.64.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.65.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.66.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.67.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.68.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.69.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.70.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.71.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.137.62.0/24 5515 Sonera Finland Auton
64558 PRIVATE 194.137.237.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.142.170.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.104.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.157.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.158.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.159.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.160.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.178.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.250.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.251.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.252.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.252.103.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.252.104.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.252.202.0/23 5515 Sonera Finland Auton
64581 PRIVATE 195.156.255.0/24 5515 Sonera Finland Auton
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 /14:230 /15:405 /16:7189 /17:1388 /18:2552
/19:7419 /20:6909 /21:4909 /22:7522 /23:9180 /24:61077
/25:224 /26:239 /27:105 /28:90 /29:92 /30:130
/31:0 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1383 2138 UUNET Technologies, Inc.
1221 1145 1288 Telstra Pty Ltd
702 658 1034 UUNET Technologies, Inc.
7018 634 1214 AT&T
3908 579 846 Supernet, Inc.
4323 510 640 Time Warner Communications, I
1239 455 796 Sprint
7046 435 618 UUNET Technologies, Inc.
1 433 836 BBN Planet
690 432 436 Merit Network
852 382 628 Telus Advanced Communications
209 369 556 Qwest
3549 348 485 Global Crossing
2764 341 385 connect.com.au pty ltd
703 330 409 UUNET Technologies, Inc.
705 329 381 UUNET Technologies, Inc.
2149 278 370 Performance Systems, Inc.
6197 275 326 BellSouth Network Solutions,
11371 274 280 Rhythms NetConnections
7066 272 301 Virginia Polytechnic Institut
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 9:1 12:482 13:10 15:1 17:5
20:2 24:760 25:1 32:68 38:9 40:6
44:1 57:14 61:277 62:170 63:1890 64:1167
65:1076 66:813 67:53 68:4 80:209 81:7
128:64 129:121 130:23 131:56 132:11 133:3
134:126 135:9 136:250 137:102 138:147 139:48
140:188 141:64 142:83 143:37 144:143 145:11
146:218 147:157 148:133 149:92 150:41 151:50
152:342 153:33 154:8 155:89 156:76 157:116
158:73 159:125 160:24 161:55 162:140 163:107
164:98 165:123 166:224 167:188 168:95 169:50
170:290 171:2 189:1 192:5434 193:2234 194:2117
195:799 196:428 198:3708 199:3224 200:2368 201:1
202:3051 203:4559 204:3304 205:2147 206:2505 207:2638
208:2562 209:2796 210:558 211:201 212:869 213:590
214:9 215:18 216:3012 217:461 218:21
End of report
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