Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Jun 21 06:05:18 EDT 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 21 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116768
Prefixes after maximum aggregation: 75458
Unique aggregates announced to Internet: 54444
Total ASes present in the Internet Routing Table: 13262
Origin-only ASes present in the Internet Routing Table: 11497
Origin ASes announcing only one prefix: 5075
Transit ASes present in the Internet Routing Table: 1765
Transit-only ASes present in the Internet Routing Table: 50
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 35
Number of addresses announced to Internet: 1191164380
Equivalent to 70 /8s, 255 /16s and 185 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 48984
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18439
Total APNIC prefixes after maximum aggregation: 11051
Prefixes being announced from the APNIC address blocks: 16933
Unique aggregates announced from the APNIC address blocks: 10433
APNIC Region origin ASes present in the Internet Routing Table: 1546
APNIC Region origin ASes announcing only one prefix: 505
APNIC Region transit ASes present in the Internet Routing Table: 271
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 87375200
Equivalent to 5 /8s, 53 /16s and 61 /24s
Percentage of available APNIC address space announced: 64.6
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: 79103
Total ARIN prefixes after maximum aggregation: 49855
Prefixes being announced from the ARIN address blocks: 54598
Unique aggregates announced from the ARIN address blocks: 17874
ARIN Region origin ASes present in the Internet Routing Table: 7814
ARIN Region origin ASes announcing only one prefix: 2508
ARIN Region transit ASes present in the Internet Routing Table: 764
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 188803412
Equivalent to 11 /8s, 64 /16s and 233 /24s
Percentage of available ARIN address space announced: 70.3
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 - 26623
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: 19225
Total RIPE prefixes after maximum aggregation: 14552
Prefixes being announced from the RIPE address blocks: 15925
Unique aggregates announced from the RIPE address blocks: 10567
RIPE Region origin ASes present in the Internet Routing Table: 3853
RIPE Region origin ASes announcing only one prefix: 2062
RIPE Region transit ASes present in the Internet Routing Table: 712
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 111785248
Equivalent to 6 /8s, 169 /16s and 181 /24s
Percentage of available RIPE address space announced: 74.0
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 1260 1222 907 Telstra Pty Ltd
4538 419 1194 16 China Education and Research
703 417 357 333 UUNET Technologies, Inc.
2907 384 1875 357 SINET Japan
2764 367 358 336 connect.com.au pty ltd
7474 311 292 208 Optus Communications Pty Ltd
17557 300 20 114 Pakistan Telecom
4755 295 115 80 Videsh Sanchar Nigam Ltd. Aut
4134 290 2132 102 Data Communications Bureau
9443 251 45 67 Primus Telecommunications
4766 216 1504 154 Korea Internet Exchange for "
4814 196 79 14 China Telecom (Group) - Beiji
4713 183 1009 106 NTT Communications Corporatio
9583 175 32 5 Satyam Infoway Ltd.,
17676 150 2322 23 XTAGE CORPORATION
9768 146 386 75 Korea Telecom
7657 139 22 87 The Internet Group Limited
9800 116 191 24 CHINA UNICOM
4780 112 186 39 Digital United Inc.
4739 111 56 102 Commerical Internet eXchange
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1022 2617 846 UUNET Technologies, Inc.
3301 401 924 350 TeliaNet Sweden
3352 278 537 27 Ibernet, Internet Access Netw
3215 263 598 162 France Telecom / &Equant
680 233 2149 230 DFN-IP service G-WiN
3320 233 1962 186 Deutsche Telekom AG
5515 206 783 172 Sonera Finland Autonomous Sys
1257 204 430 201 SWIPnet Swedish IP Network
5400 203 83 94 Concert European Core Network
719 191 306 129 LANLINK autonomous system
786 178 1873 177 The JANET IP Service
8708 141 23 138 Romania Data Systems S.A.
3303 133 546 132 Swisscom Ltd
2856 125 786 115 BTnet UK Regional network
12302 124 10 31 MobiFon S.A.
3269 113 692 70 TELECOM ITALIA
8297 111 55 64 Teleglobe Autonomous System i
3246 108 300 103 Song Networks / Clinet
3233 102 6 56 RNC - Romanian Natioanal R&D
2874 98 85 38 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2149 2872 349 2325 Performance Systems, Inc.
701 2016 9242 1405 UUNET Technologies, Inc.
7018 1286 7453 929 AT&T
3908 908 1642 495 Supernet, Inc.
1239 815 3363 651 Sprint
705 802 188 276 UUNET Technologies, Inc.
1 701 8147 451 GENUITY
852 674 1173 449 Telus Advanced Communications
4323 631 438 259 Time Warner Communications, I
7843 613 375 60 Adelphia Corp.
209 611 1959 342 Qwest
7046 597 860 384 UUNET Technologies, Inc.
690 588 81 376 Merit Network
7132 577 659 134 Southwestern Bell Internet Se
174 554 4608 36 PSINet Inc.
7066 476 202 249 Virginia Polytechnic Institut
3549 453 857 317 Global Crossing
2914 393 2100 385 Verio, Inc.
15290 385 299 198 AT&T Canada IES
6197 347 247 170 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
701 2016 611 UUNET Technologies, Inc.
7843 613 553 Adelphia Corp.
705 802 526 UUNET Technologies, Inc.
174 554 518 PSINet Inc.
7132 577 443 Southwestern Bell Internet Se
3908 908 413 Supernet, Inc.
4538 419 403 China Education and Research
4323 631 372 Time Warner Communications, I
7018 1286 357 AT&T
1221 1260 353 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 288 272 USDA
209 611 269 Qwest
6347 338 260 SAVVIS Communications Corpora
3352 278 251 Ibernet, Internet Access Netw
1 701 250 GENUITY
4355 301 248 EarthLink, Inc.
7029 262 248 Alltel Information Services,
7066 476 227 Virginia Polytechnic Institut
4454 249 226 OIR Telecommunications, State
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
13136 UNALLOCATED 80.85.128.0/20 16243 Virtu Secure Webserv
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
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
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 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.26.98.0/24 1239 Sprint
192.44.0.0/19 702 UUNET Technologies, Inc.
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.32.0/19 5515 Sonera Finland Autonomous Sys
192.83.96.0/22 5515 Sonera Finland Autonomous Sys
192.83.100.0/24 5515 Sonera Finland Autonomous Sys
192.91.198.0/24 2568 CTS Network Services
192.92.167.0/24 297 NASA Science Network
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.135.248.0/23 109 Cisco Systems, Inc.
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.152.213.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.172.0.0/19 568 DISO-UNRRA
192.195.253.0/24 237 Merit Network
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 7168 Northwest Link
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:6 /10:7 /11:12 /12:36
/13:90 /14:236 /15:421 /16:7261 /17:1455 /18:2632
/19:7670 /20:7270 /21:5094 /22:7845 /23:9553 /24:66470
/25:195 /26:171 /27:82 /28:77 /29:48 /30:81
/31:1 /32:36
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
2149 2334 2872 Performance Systems, Inc.
702 629 1022 UUNET Technologies, Inc.
705 598 802 UUNET Technologies, Inc.
701 574 2016 UUNET Technologies, Inc.
3908 496 908 Supernet, Inc.
690 466 588 Merit Network
174 461 554 PSINet Inc.
7843 397 613 Adelphia Corp.
7066 381 476 Virginia Polytechnic Institut
7018 345 1286 AT&T
209 276 611 Qwest
6197 249 347 BellSouth Network Solutions,
7029 248 262 Alltel Information Services,
11371 245 292 Rhythms NetConnections
7046 241 597 UUNET Technologies, Inc.
3301 237 401 TeliaNet Sweden
6198 233 320 BellSouth Network Solutions,
18566 221 225 Covad Communications
6517 216 238 Yipes Communications, Inc.
1239 202 815 Sprint
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:510 13:10 15:2 17:6
20:2 24:807 25:1 32:41 38:2638 40:6
44:1 57:13 61:265 62:205 63:1925 64:1236
65:1658 66:978 67:86 68:179 80:257 81:30
128:60 129:140 130:24 131:49 132:11 133:3
134:120 135:8 136:245 137:94 138:149 139:59
140:141 141:121 142:83 143:37 144:152 145:14
146:174 147:138 148:216 149:91 150:40 151:127
152:265 153:33 154:19 155:101 156:77 157:127
158:69 159:127 160:18 161:69 162:154 163:103
164:276 165:133 166:229 167:173 168:131 169:59
170:355 171:3 192:5483 193:2369 194:2085 195:957
196:395 198:3680 199:3235 200:2514 202:3236 203:4661
204:3423 205:2183 206:2738 207:2613 208:2669 209:2672
210:582 211:221 212:899 213:632 214:9 215:19
216:2976 217:462 218:39 219:41
End of report
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