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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 04:00 21 Nov, 2001
Analysis Summary
----------------
BGP routing table entries examined: 108280
Total ASes present in the Internet Routing Table: 12123
Origin-only ASes present in the Internet Routing Table: 10536
Origin ASes announcing only one prefix: 4524
Transit ASes present in the Internet Routing Table: 1587
Transit-only ASes present in the Internet Routing Table: 51
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: 9
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: 1258932433
Equivalent to 75 /8s, 9 /16s and 200 /24s
Percentage of available address space announced: 34.0
Percentage of allocated address space announced: 64.8
Percentage of available address space allocated: 52.4
Total number of prefixes smaller than registry allocations: 73372
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16960
Prefixes being announced from the APNIC address blocks: 15452
APNIC Region origin ASes present in the Internet Routing Table: 1406
APNIC Region origin ASes announcing only one prefix: 462
APNIC Region transit ASes present in the Internet Routing Table: 239
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 88796525
Equivalent to 5 /8s, 74 /16s and 237 /24s
Percentage of available APNIC address space announced: 74.9
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: 73538
Prefixes being announced from the ARIN address blocks: 52332
ARIN Region origin ASes present in the Internet Routing Table: 7211
ARIN Region origin ASes announcing only one prefix: 2215
ARIN Region transit ASes present in the Internet Routing Table: 730
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 221278486
Equivalent to 13 /8s, 48 /16s and 113 /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: 17776
Prefixes being announced from the RIPE address blocks: 14431
RIPE Region origin ASes present in the Internet Routing Table: 3456
RIPE Region origin ASes announcing only one prefix: 1847
RIPE Region transit ASes present in the Internet Routing Table: 605
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 110174668
Equivalent to 6 /8s, 145 /16s and 33 /24s
Percentage of available RIPE address space announced: 73.0
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
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 1538 1305 Telstra Pty Ltd
2764 406 357 connect.com.au pty ltd
703 384 343 UUNET Technologies, Inc.
2907 371 1848 SINET Japan
4755 351 169 Videsh Sanchar Nigam Ltd. Aut
7474 299 275 Optus Communications Pty Ltd
4134 254 1924 Data Communications Bureau
4766 184 1431 Korea Internet Exchange for "
4740 177 40 OzEmail ISP
9443 169 53 Primus Telecommunications
17676 169 1958 XTAGE CORPORATION
1659 165 1157 Taiwan Academic Network (TANe
17557 154 12 Pakistan Telecom
2521 144 171 PSINet Japan
7539 143 121 TANet2, sponsored by NSC, TAI
9583 142 47 Satyam Infoway Ltd.,
4812 137 305 China Telecom (Group) - Shang
4786 133 16 NetConnect Communications Pty
9768 127 362 Korea Telecom
7657 123 23 The Internet Group Limited
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 1081 2118 UUNET Technologies, Inc.
3301 427 948 TeliaNet Sweden
1257 268 500 SWIPnet Swedish IP Network
3215 234 568 France Telecom / &Equant
680 231 2148 DFN-IP service G-WiN
5515 198 704 Sonera Finland Autonomous Sys
3320 193 1959 Deutsche Telekom AG
786 184 1890 The JANET IP Service
8708 168 17 Romania Data Systems S.A.
5400 138 62 Concert European Core Network
2856 135 778 BTnet UK Regional network
719 134 289 LANLINK autonomous system
3303 132 561 Swisscom Ltd
5549 122 82 Nextra Deutschland GmbH + Co.
517 112 248 KPNQwest Germany GmbH
1273 107 165 Cable & Wireless ECRC GmbH
3269 107 809 TELECOM ITALIA
12302 107 7 MobiFon S.A.
1290 100 398 PSINet UK Ltd.
8297 100 31 Teleglobe Autonomous System i
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2233 9180 UUNET Technologies, Inc.
7018 1087 7316 AT&T
3967 1042 482 Exodus Communication
1 842 8553 BBN Planet
7046 736 935 UUNET Technologies, Inc.
1239 723 3387 Sprint
8010 719 106 PublicNet Communications, Inc
3908 688 1532 Supernet, Inc.
209 590 2215 Qwest
4323 568 467 Time Warner Communications, I
852 540 697 Telus Advanced Communications
690 494 71 Merit Network
2914 481 2269 Verio, Inc.
2149 469 285 Performance Systems, Inc.
705 435 251 UUNET Technologies, Inc.
3549 391 887 Global Crossing
3561 385 2287 Cable & Wireless USA
7132 385 532 Southwestern Bell Internet Se
4151 366 1254 USDA
3741 350 766 The Internet Solution
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2233 9180 UUNET Technologies, Inc.
1221 1538 1305 Telstra Pty Ltd
7018 1087 7316 AT&T
702 1081 2118 UUNET Technologies, Inc.
3967 1042 482 Exodus Communication
1 842 8553 BBN Planet
7046 736 935 UUNET Technologies, Inc.
1239 723 3387 Sprint
8010 719 106 PublicNet Communications, Inc
3908 688 1532 Supernet, Inc.
209 590 2215 Qwest
4323 568 467 Time Warner Communications, I
852 540 697 Telus Advanced Communications
690 494 71 Merit Network
2914 481 2269 Verio, Inc.
2149 469 285 Performance Systems, Inc.
705 435 251 UUNET Technologies, Inc.
3301 427 948 TeliaNet Sweden
2764 406 357 connect.com.au pty ltd
3549 391 887 Global Crossing
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
65025 PRIVATE 168.95.70.0/24 3462 Data Communication B
65025 PRIVATE 168.95.71.0/24 3462 Data Communication B
65025 PRIVATE 168.95.86.32/27 3462 Data Communication B
65026 PRIVATE 168.95.86.128/27 3462 Data Communication B
65026 PRIVATE 168.95.160.0/24 3462 Data Communication B
65026 PRIVATE 168.95.161.0/24 3462 Data Communication B
1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p
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
134.137.0.0/16 400 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 /12:36
/13:89 /14:221 /15:386 /16:7069 /17:1354 /18:2433
/19:7077 /20:6058 /21:4715 /22:7107 /23:8925 /24:61176
/25:338 /26:320 /27:270 /28:257 /29:154 /30:188
/31:0 /32:65
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1426 2233 UUNET Technologies, Inc.
1221 1395 1538 Telstra Pty Ltd
3967 860 1042 Exodus Communication
702 740 1081 UUNET Technologies, Inc.
8010 703 719 PublicNet Communications, Inc
7046 568 736 UUNET Technologies, Inc.
7018 558 1087 AT&T
690 491 494 Merit Network
4323 487 568 Time Warner Communications, I
3908 466 688 Supernet, Inc.
209 420 590 Qwest
1 406 842 BBN Planet
1239 402 723 Sprint
2764 363 406 connect.com.au pty ltd
852 360 540 Telus Advanced Communications
2149 355 469 Performance Systems, Inc.
705 342 435 UUNET Technologies, Inc.
4151 321 366 USDA
703 314 384 UUNET Technologies, Inc.
4755 304 351 Videsh Sanchar Nigam Ltd. Aut
Number of /24s announced per /8 block (Global)
----------------------------------------------
9:1 12:423 13:10 15:1 17:5 20:1
24:871 25:1 26:1 32:72 38:13 40:1
43:2 44:2 47:2 52:1 53:4 57:12
61:124 62:155 63:1903 64:1492 65:941 66:750
67:7 80:95 128:61 129:115 130:23 131:43
132:13 133:2 134:134 135:10 136:117 137:99
138:125 139:47 140:173 141:58 142:67 143:43
144:149 145:11 146:211 147:134 148:186 149:89
150:41 151:191 152:382 153:71 154:8 155:84
156:89 157:107 158:69 159:71 160:45 161:51
162:80 163:130 164:121 165:126 166:204 167:160
168:123 169:45 170:297 171:2 192:5385 193:2039
194:2058 195:842 196:453 198:3759 199:3438 200:2407
201:1 202:2837 203:4577 204:3329 205:2131 206:2661
207:2645 208:2753 209:2998 210:572 211:147 212:939
213:525 214:9 215:15 216:2928 217:425 218:6
End of report
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