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[bgp-stats] Routing Table Report - Japan view
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 16:00 15 Nov, 2001
Analysis Summary
----------------
BGP routing table entries examined: 108528
Total ASes present in the Internet Routing Table: 12080
Origin-only ASes present in the Internet Routing Table: 10490
Origin ASes announcing only one prefix: 4490
Transit ASes present in the Internet Routing Table: 1590
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: 76
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: 1259223672
Equivalent to 75 /8s, 14 /16s and 58 /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: 73705
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16842
Prefixes being announced from the APNIC address blocks: 15344
APNIC Region origin ASes present in the Internet Routing Table: 1402
APNIC Region origin ASes announcing only one prefix: 457
APNIC Region transit ASes present in the Internet Routing Table: 241
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 88593778
Equivalent to 5 /8s, 71 /16s and 213 /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: 73864
Prefixes being announced from the ARIN address blocks: 52683
ARIN Region origin ASes present in the Internet Routing Table: 7181
ARIN Region origin ASes announcing only one prefix: 2196
ARIN Region transit ASes present in the Internet Routing Table: 735
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 221039194
Equivalent to 13 /8s, 44 /16s and 202 /24s
Percentage of available ARIN address space announced: 82.3
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
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: 17821
Prefixes being announced from the RIPE address blocks: 14445
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: 603
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 109917192
Equivalent to 6 /8s, 141 /16s and 52 /24s
Percentage of available RIPE address space announced: 72.8
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
703 396 360 UUNET Technologies, Inc.
2907 372 1848 SINET Japan
4755 328 160 Videsh Sanchar Nigam Ltd. Aut
7474 294 274 Optus Communications Pty Ltd
4134 254 1922 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 152 12 Pakistan Telecom
7539 145 145 TANet2, sponsored by NSC, TAI
4812 137 305 China Telecom (Group) - Shang
2521 136 171 PSINet Japan
9583 133 45 Satyam Infoway Ltd.,
4786 131 15 NetConnect Communications Pty
9768 128 362 Korea Telecom
7657 120 23 The Internet Group Limited
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 1080 2124 UUNET Technologies, Inc.
3301 433 949 TeliaNet Sweden
1257 269 500 SWIPnet Swedish IP Network
3215 232 568 France Telecom / &Equant
680 231 2148 DFN-IP service G-WiN
5515 197 688 Sonera Finland Autonomous Sys
3320 195 1957 Deutsche Telekom AG
786 184 1890 The JANET IP Service
8708 168 17 Romania Data Systems S.A.
5400 138 64 Concert European Core Network
719 133 289 LANLINK autonomous system
2856 132 777 BTnet UK Regional network
3303 131 560 Swisscom Ltd
5549 121 82 Nextra Deutschland GmbH + Co.
517 114 250 KPNQwest Germany GmbH
1273 108 167 Cable & Wireless ECRC GmbH
12302 108 7 MobiFon S.A.
3269 105 808 TELECOM ITALIA
1290 101 398 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 2239 9163 UUNET Technologies, Inc.
7018 1088 7318 AT&T
3967 1056 483 Exodus Communication
1 838 8536 BBN Planet
7046 822 972 UUNET Technologies, Inc.
8010 718 98 PublicNet Communications, Inc
1239 716 3352 Sprint
3908 685 1518 Supernet, Inc.
209 574 2213 Qwest
852 542 707 Telus Advanced Communications
4323 505 411 Time Warner Communications, I
690 497 71 Merit Network
2149 479 333 Performance Systems, Inc.
2914 472 2269 Verio, Inc.
4293 446 113 Cable & Wireless USA
705 426 249 UUNET Technologies, Inc.
3549 393 888 Global Crossing
3561 374 2287 Cable & Wireless USA
4151 366 1254 USDA
3741 351 766 The Internet Solution
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2239 9163 UUNET Technologies, Inc.
1221 1540 1303 Telstra Pty Ltd
7018 1088 7318 AT&T
702 1080 2124 UUNET Technologies, Inc.
3967 1056 483 Exodus Communication
1 838 8536 BBN Planet
7046 822 972 UUNET Technologies, Inc.
8010 718 98 PublicNet Communications, Inc
1239 716 3352 Sprint
3908 685 1518 Supernet, Inc.
209 574 2213 Qwest
852 542 707 Telus Advanced Communications
4323 505 411 Time Warner Communications, I
690 497 71 Merit Network
2149 479 333 Performance Systems, Inc.
2914 472 2269 Verio, Inc.
4293 446 113 Cable & Wireless USA
3301 433 949 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 216.174.196.0/22 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 /15:385 /16:7070 /17:1355 /18:2416
/19:7055 /20:6022 /21:4747 /22:7108 /23:8920 /24:61490
/25:334 /26:320 /27:271 /28:251 /29:155 /30:181
/31:0 /32:60
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1430 2239 UUNET Technologies, Inc.
1221 1398 1540 Telstra Pty Ltd
3967 873 1056 Exodus Communication
702 737 1080 UUNET Technologies, Inc.
8010 703 718 PublicNet Communications, Inc
7046 654 822 UUNET Technologies, Inc.
7018 562 1088 AT&T
690 494 497 Merit Network
3908 462 685 Supernet, Inc.
4323 438 505 Time Warner Communications, I
4293 431 446 Cable & Wireless USA
1 403 838 BBN Planet
1239 403 716 Sprint
209 402 574 Qwest
2764 361 404 connect.com.au pty ltd
852 355 542 Telus Advanced Communications
2149 355 479 Performance Systems, Inc.
705 336 426 UUNET Technologies, Inc.
703 325 396 UUNET Technologies, Inc.
4151 321 366 USDA
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 9:1 12:424 13:10 15:1 17:5
20:1 24:844 25:1 26:1 32:74 38:13
43:2 44:2 47:2 52:1 53:9 57:12
61:120 62:152 63:1906 64:1497 65:919 66:715
67:5 80:105 128:61 129:109 130:23 131:42
132:13 133:2 134:133 135:8 136:119 137:99
138:197 139:47 140:173 141:58 142:66 143:42
144:148 145:11 146:203 147:133 148:182 149:85
150:43 151:191 152:382 153:70 154:8 155:84
156:91 157:107 158:69 159:70 160:46 161:51
162:77 163:129 164:128 165:121 166:206 167:161
168:119 169:46 170:296 171:2 192:5364 193:2040
194:2066 195:859 196:464 198:3737 199:3437 200:2382
201:1 202:2848 203:4574 204:3351 205:2138 206:2770
207:2641 208:2974 209:2963 210:526 211:149 212:939
213:538 214:9 215:16 216:2992 217:428 218:6
End of report
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