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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 28 Sep, 2001
Analysis Summary
----------------
BGP routing table entries examined: 108349
Origin ASes present in the Internet Routing Table: 11800
Origin ASes announcing only one prefix: 4354
Transit ASes present in the Internet Routing Table: 1502
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 23
Illegal AS announcements present in the Routing Table: 58
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 14
Number of addresses announced to Internet: 1231864162
Equivalent to 73 /8s, 108 /16s and 193 /24s
Percentage of available address space announced: 33.2
Percentage of allocated address space announced: 64.0
Percentage of available address space allocated: 51.9
Total number of prefixes smaller than registry allocations: 73435
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16348
Prefixes being announced from the APNIC address blocks: 14759
APNIC Region origin ASes present in the Internet Routing Table: 1376
APNIC Region origin ASes announcing only one prefix: 461
APNIC Region transit ASes present in the Internet Routing Table: 227
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 80539954
Equivalent to 4 /8s, 204 /16s and 241 /24s
Percentage of available APNIC address space announced: 79.2
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239, 17408 - 18431
APNIC Address Blocks 61/8, 202/7, 210/7 and 218/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 74504
Prefixes being announced from the ARIN address blocks: 52998
ARIN Region origin ASes present in the Internet Routing Table: 7110
ARIN Region origin ASes announcing only one prefix: 2139
ARIN Region transit ASes present in the Internet Routing Table: 709
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 208629299
Equivalent to 12 /8s, 111 /16s and 110 /24s
Percentage of available ARIN address space announced: 77.7
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 - 22527
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: 17486
Prefixes being announced from the RIPE address blocks: 13906
RIPE Region origin ASes present in the Internet Routing Table: 3323
RIPE Region origin ASes announcing only one prefix: 1754
RIPE Region transit ASes present in the Internet Routing Table: 568
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 107522335
Equivalent to 6 /8s, 104 /16s and 169 /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
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 Description
1221 1612 1313 Telstra Pty Ltd
2764 418 374 connect.com.au pty ltd
703 410 372 UUNET Technologies, Inc.
2907 369 1847 SINET Japan
4755 297 162 Videsh Sanchar Nigam Ltd. Aut
7474 241 274 Optus Communications Pty Ltd
4134 239 1808 Data Communications Bureau
7539 209 190 TANet2, sponsored by NSC, TAI
4740 183 23 OzEmail ISP
4766 181 1338 Korea Internet Exchange for "
9443 153 50 Primus Telecommunications
4786 127 17 NetConnect Communications Pty
17557 127 8 Pakistan Telecom
7545 125 23 TPG Internet Pty Ltd
9768 125 378 Korea Telecom
4763 122 69 Telstra New Zealand
9583 119 60 Satyam Infoway Ltd.,
4713 117 885 NTT Communications Corporatio
17561 116 167 Internet service provision to
4808 105 192 CHINANET core WAN North
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 903 1955 UUNET Technologies, Inc.
3301 444 935 TeliaNet Sweden
1257 271 512 SWIPnet Swedish IP Network
680 242 2340 DFN-IP service G-WiN
3215 229 515 France Telecom / &Equant
5515 193 687 Sonera Finland Autonomous Sys
3320 188 1942 Deutsche Telekom AG
786 185 1890 The JANET IP Service
8708 158 16 Romania Data Systems S.A.
15870 149 11 Global Center Frankfurt
1270 147 734 UUNET Germany
719 137 288 LANLINK autonomous system
5400 137 64 Concert European Core Network
3303 130 560 Swisscom Ltd
15878 129 9 Global Center Paris
2856 126 774 BTnet UK Regional network
5549 126 67 Nextra Deutschland GmbH + Co.
517 111 253 KPNQwest Germany GmbH
1267 103 1988 Infostrada S.p.A.
12302 101 6 MobiFon S.A.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2252 8126 UUNET Technologies, Inc.
7018 1048 7150 AT&T
1 866 8638 BBN Planet
7046 816 1007 UUNET Technologies, Inc.
1239 735 3375 Sprint
3908 634 1380 Supernet, Inc.
3967 598 468 Exodus Communication
209 535 2216 Qwest
690 516 97 Merit Network
2914 500 2287 Verio, Inc.
4293 451 112 Cable & Wireless USA
3561 406 2326 Cable & Wireless USA
721 388 4422 DLA Systems Automation Center
2548 374 1005 Business Internet, Inc.
3549 371 820 Global Crossing
4323 362 361 Time Warner Communications, I
2149 358 246 Performance Systems, Inc.
577 354 636 Bell Advanced Communications
3741 352 776 The Internet Solution
705 350 71 UUNET Technologies, Inc.
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2252 8126 UUNET Technologies, Inc.
1221 1612 1313 Telstra Pty Ltd
7018 1048 7150 AT&T
702 903 1955 UUNET Technologies, Inc.
1 866 8638 BBN Planet
7046 816 1007 UUNET Technologies, Inc.
1239 735 3375 Sprint
3908 634 1380 Supernet, Inc.
3967 598 468 Exodus Communication
209 535 2216 Qwest
690 516 97 Merit Network
2914 500 2287 Verio, Inc.
4293 451 112 Cable & Wireless USA
3301 444 935 TeliaNet Sweden
2764 418 374 connect.com.au pty ltd
703 410 372 UUNET Technologies, Inc.
3561 406 2326 Cable & Wireless USA
721 388 4422 DLA Systems Automation Center
2548 374 1005 Business Internet, Inc.
3549 371 820 Global Crossing
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65530 PRIVATE 63.178.38.0/24 4999 Sprint
65530 PRIVATE 63.178.42.0/24 4999 Sprint
65530 PRIVATE 63.178.44.0/24 4999 Sprint
65530 PRIVATE 63.178.58.0/24 4999 Sprint
65530 PRIVATE 63.178.60.0/24 4999 Sprint
65530 PRIVATE 63.178.63.0/24 4999 Sprint
6971 UNALLOCATED 64.42.0.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.0.0/17 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.32.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.40.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.48.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.60.0/22 2914 Verio, Inc.
6971 UNALLOCATED 64.42.72.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.80.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.112.0/20 2914 Verio, Inc.
6971 UNALLOCATED 64.87.64.0/19 2516 Kokusai Denshin Denw
578 UNALLOCATED 64.230.242.16/28 577 Bell Advanced Commun
65000 PRIVATE 138.163.4.0/24 665 Department of Navy
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
6971 UNALLOCATED 192.103.229.0/24 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.230.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.232.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.236.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.237.0/24 2516 Kokusai Denshin Denw
1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p
5555 UNALLOCATED 192.156.8.0/24 721 DLA Systems Automati
5555 UNALLOCATED 192.156.41.0/24 721 DLA Systems Automati
65460 PRIVATE 192.231.11.0/24 7018 AT&T
5555 UNALLOCATED 199.10.190.0/24 721 DLA Systems Automati
22290 UNALLOCATED 199.217.152.0/24 1239 Sprint
22290 UNALLOCATED 199.217.187.0/24 1239 Sprint
6971 UNALLOCATED 199.249.223.0/24 2516 Kokusai Denshin Denw
6971 UNALLOCATED 206.58.248.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 206.58.248.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 206.58.252.0/23 2914 Verio, Inc.
6971 UNALLOCATED 206.58.254.0/23 2914 Verio, Inc.
64803 PRIVATE 206.81.213.0/24 6225 US West Communicatio
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
22290 UNALLOCATED 207.150.139.0/24 1239 Sprint
22075 UNALLOCATED 209.39.134.0/24 209 Qwest
65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS
6971 UNALLOCATED 216.105.192.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.121.224.0/19 2516 Kokusai Denshin Denw
64803 PRIVATE 216.160.71.0/24 6225 US West Communicatio
6971 UNALLOCATED 216.174.192.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.192.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.200.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.200.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.174.208.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.232.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.210.128.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.128.0/17 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.144.0/20 2914 Verio, Inc.
6971 UNALLOCATED 216.210.176.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.210.184.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.216.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.210.224.0/20 2914 Verio, Inc.
6971 UNALLOCATED 216.229.96.0/20 2516 Kokusai Denshin Denw
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
128.65.0.0/16 3463 ACES Research Inc
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 400 Headquarters Standard Systems
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.
153.34.0.0/15 701 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
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 /8:17 /9:5 /10:7 /11:12 /12:33
/13:86 /14:226 /15:386 /16:7074 /17:1239 /18:2345
/19:6934 /20:5827 /21:4746 /22:6976 /23:8882 /24:62009
/25:311 /26:326 /27:254 /28:254 /29:148 /30:183
/31:1 /32:68
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
1221 1465 1612 Telstra Pty Ltd
701 1421 2252 UUNET Technologies, Inc.
7046 639 816 UUNET Technologies, Inc.
702 615 903 UUNET Technologies, Inc.
7018 555 1048 AT&T
690 512 516 Merit Network
4293 437 451 Cable & Wireless USA
1 423 866 BBN Planet
3967 419 598 Exodus Communication
3908 417 634 Supernet, Inc.
1239 407 735 Sprint
209 374 535 Qwest
2764 372 418 connect.com.au pty ltd
703 339 410 UUNET Technologies, Inc.
5106 321 341 Ameritech Advanced Data Servi
6995 308 319 Bell Atlantic Internet Soluti
705 304 350 UUNET Technologies, Inc.
4323 303 362 Time Warner Communications, I
11371 301 313 Rhythms NetConnections
4151 279 321 USDA
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:6 9:1 12:419 13:10 15:1 17:5
20:1 24:817 25:1 26:1 32:73 38:12
43:3 44:2 53:2 55:1 57:15 61:92
62:144 63:1879 64:1325 65:740 66:466 67:2
80:60 128:50 129:108 130:19 131:51 132:39
133:2 134:139 135:10 136:93 137:92 138:217
139:45 140:197 141:198 142:57 143:39 144:152
145:13 146:146 147:129 148:83 149:87 150:37
151:324 152:372 153:45 154:16 155:85 156:92
157:111 158:74 159:68 160:48 161:60 162:67
163:148 164:100 165:98 166:193 167:150 168:118
169:40 170:280 171:2 192:5595 193:1960 194:2029
195:816 196:453 198:4058 199:3822 200:2530 201:1
202:2814 203:4558 204:3361 205:2209 206:2891 207:2588
208:3154 209:3096 210:559 211:143 212:856 213:514
214:8 215:13 216:3005 217:402 218:2
End of report
-----
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