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Weekly Routing Table Report
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 26 Apr, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114228
Prefixes after maximum aggregation: 72863
Unique aggregates announced to Internet: 52629
Total ASes present in the Internet Routing Table: 12981
Origin-only ASes present in the Internet Routing Table: 11250
Origin ASes announcing only one prefix: 4932
Transit ASes present in the Internet Routing Table: 1731
Transit-only ASes present in the Internet Routing Table: 53
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 16
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: 45
Number of addresses announced to Internet: 1167093980
Equivalent to 69 /8s, 144 /16s and 112 /24s
Percentage of available address space announced: 31.5
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 47584
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18039
Total APNIC prefixes after maximum aggregation: 10872
Prefixes being announced from the APNIC address blocks: 16532
Unique aggregates announced from the APNIC address blocks: 9781
APNIC Region origin ASes present in the Internet Routing Table: 1494
APNIC Region origin ASes announcing only one prefix: 484
APNIC Region transit ASes present in the Internet Routing Table: 265
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 87679808
Equivalent to 5 /8s, 57 /16s and 227 /24s
Percentage of available APNIC address space announced: 64.8
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: 77174
Total ARIN prefixes after maximum aggregation: 47685
Prefixes being announced from the ARIN address blocks: 55308
Unique aggregates announced from the ARIN address blocks: 16622
ARIN Region origin ASes present in the Internet Routing Table: 7659
ARIN Region origin ASes announcing only one prefix: 2414
ARIN Region transit ASes present in the Internet Routing Table: 757
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 191460804
Equivalent to 11 /8s, 105 /16s and 117 /24s
Percentage of available ARIN address space announced: 71.3
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: 19014
Total RIPE prefixes after maximum aggregation: 14306
Prefixes being announced from the RIPE address blocks: 15695
Unique aggregates announced from the RIPE address blocks: 10309
RIPE Region origin ASes present in the Internet Routing Table: 3774
RIPE Region origin ASes announcing only one prefix: 2034
RIPE Region transit ASes present in the Internet Routing Table: 692
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 108875824
Equivalent to 6 /8s, 125 /16s and 80 /24s
Percentage of available RIPE address space announced: 72.1
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 1287 1210 946 Telstra Pty Ltd
4538 476 1194 17 China Education and Research
2907 431 1925 366 SINET Japan
703 419 339 326 UUNET Technologies, Inc.
2764 393 361 361 connect.com.au pty ltd
7474 304 291 209 Optus Communications Pty Ltd
4134 278 2018 94 Data Communications Bureau
9443 275 44 63 Primus Telecommunications
17557 258 18 105 Pakistan Telecom
4755 239 109 73 Videsh Sanchar Nigam Ltd. Aut
4766 221 1518 158 Korea Internet Exchange for "
7539 168 239 162 TANet2, sponsored by NSC, TAI
4804 161 84 66 Microplex PTY LTD
9583 160 32 5 Satyam Infoway Ltd.,
9768 146 386 80 Korea Telecom
7657 125 22 87 The Internet Group Limited
17676 122 1952 9 XTAGE CORPORATION
4814 119 64 5 China Telecom (Group) - Beiji
4713 114 993 105 NTT Communications Corporatio
9800 114 4223 12 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1031 2577 847 UUNET Technologies, Inc.
3301 395 924 347 TeliaNet Sweden
790 311 103 41 KPNQwest Finland Oy
5515 275 761 173 Sonera Finland Autonomous Sys
3215 273 599 169 France Telecom / &Equant
680 231 2149 230 DFN-IP service G-WiN
3320 228 1946 175 Deutsche Telekom AG
1257 209 462 206 SWIPnet Swedish IP Network
5400 198 82 93 Concert European Core Network
786 179 1858 179 The JANET IP Service
719 163 289 118 LANLINK autonomous system
8708 142 22 135 Romania Data Systems S.A.
12302 131 9 50 MobiFon S.A.
2856 126 786 116 BTnet UK Regional network
8297 121 52 66 Teleglobe Autonomous System i
3269 117 694 71 TELECOM ITALIA
3303 117 546 116 Swisscom Ltd
5536 108 9 40 Internet Egypt Network
5511 104 193 91 France Telecom
517 101 226 97 KPNQwest Germany GmbH
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 4417 8497 1453 UUNET Technologies, Inc.
7018 1281 7522 943 AT&T
3908 861 1660 481 Supernet, Inc.
1239 816 3370 654 Sprint
1 806 8186 454 BBN Planet
7046 784 856 553 UUNET Technologies, Inc.
852 666 1148 424 Telus Advanced Communications
4323 634 436 256 Time Warner Communications, I
705 587 190 290 UUNET Technologies, Inc.
209 581 1999 324 Qwest
7132 569 604 140 Southwestern Bell Internet Se
3549 526 859 320 Global Crossing
690 473 70 306 Merit Network
7066 468 202 249 Virginia Polytechnic Institut
7843 455 338 58 Adelphia Corp.
2914 411 2146 406 Verio, Inc.
2149 349 191 291 Performance Systems, Inc.
6197 344 341 132 BellSouth Network Solutions,
3741 341 731 236 The Internet Solution
6347 325 370 79 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 476 459 China Education and Research
7132 569 429 Southwestern Bell Internet Se
7843 455 397 Adelphia Corp.
3908 861 380 Supernet, Inc.
4323 634 378 Time Warner Communications, I
1 806 352 BBN Planet
1221 1287 341 Telstra Pty Ltd
7018 1281 338 AT&T
705 587 297 UUNET Technologies, Inc.
11371 293 287 Rhythms NetConnections
4151 291 276 USDA
790 311 270 KPNQwest Finland Oy
209 581 257 Qwest
7029 265 250 Alltel Information Services,
6347 325 246 SAVVIS Communications Corpora
852 666 242 Telus Advanced Communications
7046 784 231 UUNET Technologies, Inc.
7066 468 219 Virginia Polytechnic Institut
4355 255 219 EarthLink, Inc.
6197 344 212 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
112 UNALLOCATED 192.175.48.0/24 7500 A Root DNS Server in
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
65027 PRIVATE 209.239.80.0/24 11042 Orion Network System
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 BBN Planet
144.7.0.0/16 701 UUNET Technologies, Inc.
153.36.0.0/14 701 UUNET Technologies, Inc.
153.147.0.0/16 3561 Cable & Wireless USA
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.31.126.0/23 1103 SURFnet BV
192.31.128.0/21 1103 SURFnet BV
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.
192.83.1.0/24 5515 Sonera Finland Autonomous Sys
192.83.2.0/24 5515 Sonera Finland Autonomous Sys
192.83.8.0/21 5515 Sonera Finland Autonomous Sys
192.83.14.0/24 5515 Sonera Finland Autonomous Sys
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.25.0/24 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 /9:7 /10:7 /11:13 /12:34
/13:86 /14:233 /15:406 /16:7187 /17:1425 /18:2597
/19:7483 /20:7033 /21:5022 /22:7786 /23:9566 /24:64573
/25:211 /26:189 /27:80 /28:90 /29:53 /30:90
/31:0 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 2949 4417 UUNET Technologies, Inc.
702 644 1031 UUNET Technologies, Inc.
3908 445 861 Supernet, Inc.
690 426 473 Merit Network
7046 413 784 UUNET Technologies, Inc.
7066 373 468 Virginia Polytechnic Institut
705 371 587 UUNET Technologies, Inc.
7018 329 1281 AT&T
790 289 311 KPNQwest Finland Oy
7843 273 455 Adelphia Corp.
209 271 581 Qwest
7029 250 265 Alltel Information Services,
11371 245 293 Rhythms NetConnections
6197 244 344 BellSouth Network Solutions,
1 238 806 BBN Planet
3301 236 395 TeliaNet Sweden
3549 229 526 Global Crossing
6198 228 304 BellSouth Network Solutions,
6517 222 247 Yipes Communications, Inc.
1239 208 816 Sprint
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:2 9:1 12:495 13:10 15:2
17:7 20:2 24:756 25:1 32:67 38:8
40:6 44:1 57:14 61:200 62:196 63:3989
64:1214 65:1252 66:876 67:243 68:7 80:236
81:16 128:59 129:137 130:22 131:47 132:12
133:3 134:127 135:9 136:312 137:92 138:148
139:49 140:186 141:143 142:82 143:38 144:140
145:12 146:224 147:136 148:161 149:92 150:39
151:59 152:305 153:33 154:3 155:99 156:76
157:122 158:69 159:127 160:24 161:56 162:152
163:105 164:266 165:127 166:225 167:169 168:111
169:52 170:302 171:2 192:5471 193:2529 194:2105
195:812 196:431 198:3743 199:3203 200:2417 202:3134
203:4524 204:3263 205:2166 206:2551 207:2644 208:2619
209:2723 210:649 211:210 212:887 213:595 214:9
215:18 216:3038 217:461 218:15
End of report
-----
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