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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 16 Dec, 2001
Analysis Summary
----------------
BGP routing table entries examined: 107542
Total ASes present in the Internet Routing Table: 12262
Origin-only ASes present in the Internet Routing Table: 10645
Origin ASes announcing only one prefix: 4599
Transit ASes present in the Internet Routing Table: 1617
Transit-only ASes present in the Internet Routing Table: 58
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: 12
Non-routable prefixes present in the Routing Table: 1
Prefixes being announced from the IANA Reserved Address blocks: 15
Number of addresses announced to Internet: 1262052182
Equivalent to 75 /8s, 57 /16s and 99 /24s
Percentage of available address space announced: 34.0
Percentage of allocated address space announced: 64.4
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 72341
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17017
Prefixes being announced from the APNIC address blocks: 15437
APNIC Region origin ASes present in the Internet Routing Table: 1419
APNIC Region origin ASes announcing only one prefix: 465
APNIC Region transit ASes present in the Internet Routing Table: 240
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 90761095
Equivalent to 5 /8s, 104 /16s and 231 /24s
Percentage of available APNIC address space announced: 67.1
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: 72671
Prefixes being announced from the ARIN address blocks: 52126
ARIN Region origin ASes present in the Internet Routing Table: 7266
ARIN Region origin ASes announcing only one prefix: 2230
ARIN Region transit ASes present in the Internet Routing Table: 738
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 223926614
Equivalent to 13 /8s, 88 /16s and 217 /24s
Percentage of available ARIN address space announced: 83.4
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: 17848
Prefixes being announced from the RIPE address blocks: 14549
RIPE Region origin ASes present in the Internet Routing Table: 3520
RIPE Region origin ASes announcing only one prefix: 1904
RIPE Region transit ASes present in the Internet Routing Table: 627
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 112105116
Equivalent to 6 /8s, 174 /16s and 150 /24s
Percentage of available RIPE address space announced: 74.2
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 1510 1327 Telstra Pty Ltd
2764 401 376 connect.com.au pty ltd
703 393 337 UUNET Technologies, Inc.
2907 370 1831 SINET Japan
7474 308 287 Optus Communications Pty Ltd
4755 304 160 Videsh Sanchar Nigam Ltd. Aut
4134 263 1941 Data Communications Bureau
4766 187 1421 Korea Internet Exchange for "
1659 175 1161 Taiwan Academic Network (TANe
9443 171 61 Primus Telecommunications
4740 169 40 OzEmail ISP
17557 169 13 Pakistan Telecom
2521 155 171 PSINet Japan
7539 149 135 TANet2, sponsored by NSC, TAI
9583 148 64 Satyam Infoway Ltd.,
4812 137 305 China Telecom (Group) - Shang
9768 129 363 Korea Telecom
17676 125 1952 XTAGE CORPORATION
4713 120 942 NTT Communications Corporatio
7657 118 23 The Internet Group Limited
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 1085 2768 UUNET Technologies, Inc.
3301 430 934 TeliaNet Sweden
1257 267 499 SWIPnet Swedish IP Network
3215 237 543 France Telecom / &Equant
680 233 2149 DFN-IP service G-WiN
5515 215 705 Sonera Finland Autonomous Sys
3320 186 1960 Deutsche Telekom AG
786 181 1858 The JANET IP Service
719 164 292 LANLINK autonomous system
8708 150 21 Romania Data Systems S.A.
5400 145 64 Concert European Core Network
2856 136 778 BTnet UK Regional network
3303 134 577 Swisscom Ltd
5549 121 82 Nextra Deutschland GmbH + Co.
8895 116 110 Saudi Arabia AS
3269 113 827 TELECOM ITALIA
12302 112 7 MobiFon S.A.
517 109 231 KPNQwest Germany GmbH
8297 108 31 Teleglobe Autonomous System i
5511 96 192 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2176 9041 UUNET Technologies, Inc.
7018 1103 7375 AT&T
3967 992 469 Exodus Communication
1 855 8522 BBN Planet
1239 774 3420 Sprint
7046 719 876 UUNET Technologies, Inc.
8010 719 106 PublicNet Communications, Inc
3908 715 1667 Supernet, Inc.
209 615 2249 Qwest
4323 587 477 Time Warner Communications, I
852 574 995 Telus Advanced Communications
690 518 90 Merit Network
2914 470 2235 Verio, Inc.
705 469 348 UUNET Technologies, Inc.
2149 408 231 Performance Systems, Inc.
3549 404 888 Global Crossing
3561 394 2314 Cable & Wireless USA
7132 387 535 Southwestern Bell Internet Se
3741 350 766 The Internet Solution
577 347 592 Bell Advanced Communications
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2176 9041 UUNET Technologies, Inc.
1221 1510 1327 Telstra Pty Ltd
7018 1103 7375 AT&T
702 1085 2768 UUNET Technologies, Inc.
3967 992 469 Exodus Communication
1 855 8522 BBN Planet
1239 774 3420 Sprint
7046 719 876 UUNET Technologies, Inc.
8010 719 106 PublicNet Communications, Inc
3908 715 1667 Supernet, Inc.
209 615 2249 Qwest
4323 587 477 Time Warner Communications, I
852 574 995 Telus Advanced Communications
690 518 90 Merit Network
2914 470 2235 Verio, Inc.
705 469 348 UUNET Technologies, Inc.
3301 430 934 TeliaNet Sweden
2149 408 231 Performance Systems, Inc.
3549 404 888 Global Crossing
2764 401 376 connect.com.au pty ltd
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
22795 UNALLOCATED 63.108.192.0/20 3385 Long Island Informat
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
21337 UNALLOCATED 195.34.112.0/24 8866 Bulgarian Telecommun
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
21337 UNALLOCATED 212.39.67.0/24 8866 Bulgarian Telecommun
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.168.77.0/24 7539 TANet2, sponsored by NSC, TAI
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
191.9.200.0/24 1290 PSINet UK Ltd.
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 /11:11 /12:37
/13:89 /14:227 /15:389 /16:7071 /17:1364 /18:2460
/19:7166 /20:6258 /21:4695 /22:7132 /23:8875 /24:60402
/25:308 /26:301 /27:228 /28:182 /29:115 /30:156
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1394 2176 UUNET Technologies, Inc.
1221 1364 1510 Telstra Pty Ltd
3967 809 992 Exodus Communication
702 704 1085 UUNET Technologies, Inc.
8010 703 719 PublicNet Communications, Inc
7018 564 1103 AT&T
7046 557 719 UUNET Technologies, Inc.
690 514 518 Merit Network
4323 497 587 Time Warner Communications, I
3908 490 715 Supernet, Inc.
209 444 615 Qwest
1239 441 774 Sprint
1 424 855 BBN Planet
852 367 574 Telus Advanced Communications
2764 356 401 connect.com.au pty ltd
705 354 469 UUNET Technologies, Inc.
703 320 393 UUNET Technologies, Inc.
2149 310 408 Performance Systems, Inc.
3549 274 404 Global Crossing
7474 273 308 Optus Communications Pty Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:432 13:10 15:1 17:5
20:1 24:824 25:1 32:73 38:13 40:4
43:1 44:2 52:1 53:2 57:12 61:167
62:159 63:1915 64:1489 65:1012 66:757 67:14
68:1 80:119 128:61 129:110 130:23 131:43
132:15 133:2 134:134 135:10 136:115 137:107
138:73 139:30 140:102 141:57 142:70 143:42
144:55 145:12 146:216 147:95 148:135 149:87
150:41 151:38 152:391 153:37 154:6 155:85
156:83 157:123 158:68 159:75 160:45 161:53
162:85 163:130 164:119 165:98 166:205 167:162
168:125 169:48 170:301 171:2 191:1 192:5338
193:2070 194:2071 195:825 196:434 198:3764 199:3224
200:2400 201:1 202:2857 203:4559 204:3331 205:2172
206:2607 207:2697 208:2617 209:2907 210:576 211:144
212:952 213:538 214:9 215:15 216:2948 217:401
218:11
End of report
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