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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 04:00 16 Nov, 2001
Analysis Summary
----------------
BGP routing table entries examined: 108641
Total ASes present in the Internet Routing Table: 12085
Origin-only ASes present in the Internet Routing Table: 10493
Origin ASes announcing only one prefix: 4496
Transit ASes present in the Internet Routing Table: 1592
Transit-only ASes present in the Internet Routing Table: 54
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: 77
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: 1259668207
Equivalent to 75 /8s, 21 /16s and 2 /24s
Percentage of available address space announced: 34.0
Percentage of allocated address space announced: 64.9
Percentage of available address space allocated: 52.4
Total number of prefixes smaller than registry allocations: 73802
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16883
Prefixes being announced from the APNIC address blocks: 15385
APNIC Region origin ASes present in the Internet Routing Table: 1402
APNIC Region origin ASes announcing only one prefix: 459
APNIC Region transit ASes present in the Internet Routing Table: 238
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 88682394
Equivalent to 5 /8s, 73 /16s and 47 /24s
Percentage of available APNIC address space announced: 74.8
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7 and 218/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 73914
Prefixes being announced from the ARIN address blocks: 52725
ARIN Region origin ASes present in the Internet Routing Table: 7185
ARIN Region origin ASes announcing only one prefix: 2200
ARIN Region transit ASes present in the Internet Routing Table: 734
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 221094042
Equivalent to 13 /8s, 45 /16s and 160 /24s
Percentage of available ARIN address space announced: 82.4
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: 17843
Prefixes being announced from the RIPE address blocks: 14474
RIPE Region origin ASes present in the Internet Routing Table: 3449
RIPE Region origin ASes announcing only one prefix: 1837
RIPE Region transit ASes present in the Internet Routing Table: 606
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 110145544
Equivalent to 6 /8s, 144 /16s and 176 /24s
Percentage of available RIPE address space announced: 72.9
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 1540 1303 Telstra Pty Ltd
2764 404 357 connect.com.au pty ltd
703 397 360 UUNET Technologies, Inc.
2907 372 1848 SINET Japan
4755 360 169 Videsh Sanchar Nigam Ltd. Aut
7474 299 275 Optus Communications Pty Ltd
4134 255 1924 Data Communications Bureau
4766 184 1431 Korea Internet Exchange for "
4740 169 24 OzEmail ISP
17676 168 1957 XTAGE CORPORATION
9443 166 53 Primus Telecommunications
1659 165 1157 Taiwan Academic Network (TANe
17557 151 12 Pakistan Telecom
7539 146 145 TANet2, sponsored by NSC, TAI
9583 139 47 Satyam Infoway Ltd.,
4812 137 305 China Telecom (Group) - Shang
2521 136 171 PSINet Japan
4786 131 15 NetConnect Communications Pty
9768 128 362 Korea Telecom
7657 121 23 The Internet Group Limited
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 1082 2146 UUNET Technologies, Inc.
3301 432 949 TeliaNet Sweden
1257 268 500 SWIPnet Swedish IP Network
3215 234 568 France Telecom / &Equant
680 231 2148 DFN-IP service G-WiN
5515 197 688 Sonera Finland Autonomous Sys
3320 196 1959 Deutsche Telekom AG
786 183 1890 The JANET IP Service
8708 167 17 Romania Data Systems S.A.
5400 138 64 Concert European Core Network
719 134 289 LANLINK autonomous system
2856 133 777 BTnet UK Regional network
3303 131 560 Swisscom Ltd
5549 121 82 Nextra Deutschland GmbH + Co.
517 112 248 KPNQwest Germany GmbH
12302 108 7 MobiFon S.A.
1273 107 165 Cable & Wireless ECRC GmbH
3269 105 808 TELECOM ITALIA
1290 100 398 PSINet UK Ltd.
8297 99 31 Teleglobe Autonomous System i
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2241 9163 UUNET Technologies, Inc.
7018 1088 7318 AT&T
3967 1056 483 Exodus Communication
1 842 8520 BBN Planet
7046 817 972 UUNET Technologies, Inc.
8010 718 98 PublicNet Communications, Inc
1239 716 3352 Sprint
3908 682 1516 Supernet, Inc.
209 577 2213 Qwest
852 542 707 Telus Advanced Communications
4323 507 413 Time Warner Communications, I
690 498 71 Merit Network
2149 481 333 Performance Systems, Inc.
2914 472 2269 Verio, Inc.
4293 447 113 Cable & Wireless USA
705 426 249 UUNET Technologies, Inc.
3549 395 888 Global Crossing
3561 379 2303 Cable & Wireless USA
4151 365 1254 USDA
3741 348 765 The Internet Solution
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2241 9163 UUNET Technologies, Inc.
1221 1540 1303 Telstra Pty Ltd
7018 1088 7318 AT&T
702 1082 2146 UUNET Technologies, Inc.
3967 1056 483 Exodus Communication
1 842 8520 BBN Planet
7046 817 972 UUNET Technologies, Inc.
8010 718 98 PublicNet Communications, Inc
1239 716 3352 Sprint
3908 682 1516 Supernet, Inc.
209 577 2213 Qwest
852 542 707 Telus Advanced Communications
4323 507 413 Time Warner Communications, I
690 498 71 Merit Network
2149 481 333 Performance Systems, Inc.
2914 472 2269 Verio, Inc.
4293 447 113 Cable & Wireless USA
3301 432 949 TeliaNet Sweden
705 426 249 UUNET Technologies, Inc.
2764 404 357 connect.com.au pty ltd
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
8972 UNALLOCATED 62.75.128.0/17 5669 VIA NET.WORKS Inc
6971 UNALLOCATED 64.42.0.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.0.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.16.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.32.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.40.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.48.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.56.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.60.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.64.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.72.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.76.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.80.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.88.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.96.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.104.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.108.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.112.0/20 2914 Verio, Inc.
6971 UNALLOCATED 64.87.64.0/19 2516 Kokusai Denshin Denw
6971 UNALLOCATED 66.182.0.0/18 2516 Kokusai Denshin Denw
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
6971 UNALLOCATED 199.164.144.0/24 2516 Kokusai Denshin Denw
6971 UNALLOCATED 199.249.223.0/24 2516 Kokusai Denshin Denw
9541 UNALLOCATED 202.163.64.0/18 8961 Emirates Internet Ex
9541 UNALLOCATED 202.163.120.0/21 8961 Emirates Internet Ex
65000 PRIVATE 203.21.200.0/24 1221 Telstra Pty Ltd
6971 UNALLOCATED 204.69.206.0/24 2516 Kokusai Denshin Denw
6971 UNALLOCATED 205.163.58.0/24 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 207.12.40.0/22 2516 Kokusai Denshin Denw
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
6971 UNALLOCATED 208.1.124.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 208.1.200.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.105.192.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.121.224.0/19 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.173.192.0/19 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.192.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.192.0/18 701 UUNET Technologies,
6971 UNALLOCATED 216.174.196.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.200.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.202.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.204.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.208.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.224.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.232.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.240.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.244.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.248.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.252.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.128.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.128.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.128.0/17 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.136.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.140.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.160.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.210.168.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.176.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.184.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.188.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.192.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.200.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.204.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.208.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.216.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.220.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.224.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.232.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.236.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.240.0/20 2914 Verio, Inc.
6971 UNALLOCATED 216.229.96.0/20 2516 Kokusai Denshin Denw
8972 UNALLOCATED 217.172.160.0/19 5669 VIA NET.WORKS Inc
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 400 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 /8:18 /9:5 /10:7 /11:12 /12:37
/13:89 /14:220 /15:386 /16:7072 /17:1356 /18:2421
/19:7053 /20:6035 /21:4747 /22:7120 /23:8933 /24:61536
/25:333 /26:322 /27:273 /28:252 /29:158 /30:181
/31:0 /32:75
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1432 2241 UUNET Technologies, Inc.
1221 1398 1540 Telstra Pty Ltd
3967 873 1056 Exodus Communication
702 737 1082 UUNET Technologies, Inc.
8010 703 718 PublicNet Communications, Inc
7046 649 817 UUNET Technologies, Inc.
7018 561 1088 AT&T
690 495 498 Merit Network
3908 460 682 Supernet, Inc.
4323 439 507 Time Warner Communications, I
4293 432 447 Cable & Wireless USA
1 408 842 BBN Planet
209 405 577 Qwest
1239 403 716 Sprint
2764 361 404 connect.com.au pty ltd
2149 357 481 Performance Systems, Inc.
852 355 542 Telus Advanced Communications
705 336 426 UUNET Technologies, Inc.
703 326 397 UUNET Technologies, Inc.
4151 320 365 USDA
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 9:1 12:423 13:10 15:1 17:5
20:1 24:841 25:1 26:1 32:73 38:13
43:2 44:2 47:2 52:1 53:9 57:12
61:124 62:156 63:1907 64:1501 65:916 66:716
67:5 80:106 128:61 129:109 130:23 131:42
132:13 133:2 134:134 135:8 136:118 137:99
138:197 139:47 140:171 141:58 142:66 143:42
144:148 145:11 146:207 147:133 148:181 149:86
150:42 151:191 152:384 153:69 154:8 155:84
156:92 157:108 158:69 159:70 160:45 161:55
162:77 163:129 164:104 165:121 166:207 167:161
168:118 169:46 170:297 171:2 192:5376 193:2042
194:2056 195:862 196:451 198:3744 199:3441 200:2376
201:1 202:2827 203:4579 204:3358 205:2143 206:2771
207:2653 208:2975 209:2964 210:546 211:149 212:961
213:533 214:9 215:16 216:2993 217:435 218:6
End of report
-----
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