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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 Mon 17 Dec, 2001
Analysis Summary
----------------
BGP routing table entries examined: 107576
Prefixes with maximum aggregation: 86082
Unique aggregates announced to Internet: 51876
Total ASes present in the Internet Routing Table: 12254
Origin-only ASes present in the Internet Routing Table: 10635
Origin ASes announcing only one prefix: 4593
Transit ASes present in the Internet Routing Table: 1619
Transit-only ASes present in the Internet Routing Table: 59
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: 13
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: 1143510788
Equivalent to 68 /8s, 40 /16s and 151 /24s
Percentage of available address space announced: 30.9
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 72359
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17059
Total APNIC prefixes with maximum aggregation: 13136
Prefixes being announced from the APNIC address blocks: 15459
Unique aggregates announced from the APNIC address blocks: 9793
APNIC Region origin ASes present in the Internet Routing Table: 1421
APNIC Region origin ASes announcing only one prefix: 466
APNIC Region transit ASes present in the Internet Routing Table: 243
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 77636592
Equivalent to 4 /8s, 160 /16s and 163 /24s
Percentage of available APNIC address space announced: 57.4
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: 72723
Total ARIN prefixes with maximum aggregation: 57502
Prefixes being announced from the ARIN address blocks: 52156
Unique aggregates announced from the ARIN address blocks: 16908
ARIN Region origin ASes present in the Internet Routing Table: 7264
ARIN Region origin ASes announcing only one prefix: 2228
ARIN Region transit ASes present in the Internet Routing Table: 736
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 180061900
Equivalent to 10 /8s, 187 /16s and 134 /24s
Percentage of available ARIN address space announced: 67.1
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: 17784
Total RIPE prefixes with maximum aggregation: 15444
Prefixes being announced from the RIPE address blocks: 14494
Unique aggregates announced from the RIPE address blocks: 9627
RIPE Region origin ASes present in the Internet Routing Table: 3512
RIPE Region origin ASes announcing only one prefix: 1899
RIPE Region transit ASes present in the Internet Routing Table: 626
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 104279232
Equivalent to 6 /8s, 55 /16s and 44 /24s
Percentage of available RIPE address space announced: 69.1
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 1512 1261 Telstra Pty Ltd
2764 401 376 connect.com.au pty ltd
703 395 348 UUNET Technologies, Inc.
2907 370 1831 SINET Japan
7474 308 285 Optus Communications Pty Ltd
4755 304 118 Videsh Sanchar Nigam Ltd. Aut
4134 263 1850 Data Communications Bureau
4766 187 1391 Korea Internet Exchange for "
1659 175 924 Taiwan Academic Network (TANe
2521 174 165 PSINet Japan
9443 171 45 Primus Telecommunications
4740 170 35 OzEmail ISP
17557 168 13 Pakistan Telecom
7539 149 135 TANet2, sponsored by NSC, TAI
9583 148 32 Satyam Infoway Ltd.,
4812 137 192 China Telecom (Group) - Shang
9768 129 360 Korea Telecom
17676 125 1920 XTAGE CORPORATION
4713 120 942 NTT Communications Corporatio
7657 118 21 The Internet Group Limited
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 1073 2700 UUNET Technologies, Inc.
3301 430 910 TeliaNet Sweden
1257 267 499 SWIPnet Swedish IP Network
3215 237 538 France Telecom / &Equant
680 233 2149 DFN-IP service G-WiN
5515 215 705 Sonera Finland Autonomous Sys
3320 186 1960 Deutsche Telekom AG
786 182 1874 The JANET IP Service
719 164 289 LANLINK autonomous system
8708 151 20 Romania Data Systems S.A.
5400 146 60 Concert European Core Network
2856 136 777 BTnet UK Regional network
3303 134 575 Swisscom Ltd
5549 121 78 Nextra Deutschland GmbH + Co.
8895 115 89 Saudi Arabia AS
3269 113 660 TELECOM ITALIA
12302 112 7 MobiFon S.A.
517 109 231 KPNQwest Germany GmbH
8297 107 31 Teleglobe Autonomous System i
5511 96 191 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2176 8859 UUNET Technologies, Inc.
7018 1102 7333 AT&T
3967 991 365 Exodus Communication
1 854 8405 BBN Planet
1239 774 3169 Sprint
7046 720 823 UUNET Technologies, Inc.
8010 719 62 PublicNet Communications, Inc
3908 716 1609 Supernet, Inc.
209 614 1877 Qwest
4323 586 364 Time Warner Communications, I
852 573 978 Telus Advanced Communications
690 524 75 Merit Network
2914 469 2229 Verio, Inc.
705 467 348 UUNET Technologies, Inc.
2149 411 247 Performance Systems, Inc.
3549 404 837 Global Crossing
3561 391 2276 Cable & Wireless USA
7132 387 459 Southwestern Bell Internet Se
3741 350 730 The Internet Solution
577 347 587 Bell Advanced Communications
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2176 8859 UUNET Technologies, Inc.
1221 1512 1261 Telstra Pty Ltd
7018 1102 7333 AT&T
702 1073 2700 UUNET Technologies, Inc.
3967 991 365 Exodus Communication
1 854 8405 BBN Planet
1239 774 3169 Sprint
7046 720 823 UUNET Technologies, Inc.
8010 719 62 PublicNet Communications, Inc
3908 716 1609 Supernet, Inc.
209 614 1877 Qwest
4323 586 364 Time Warner Communications, I
852 573 978 Telus Advanced Communications
690 524 75 Merit Network
2914 469 2229 Verio, Inc.
705 467 348 UUNET Technologies, Inc.
3301 430 910 TeliaNet Sweden
2149 411 247 Performance Systems, Inc.
3549 404 837 Global Crossing
2764 401 376 connect.com.au pty ltd
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
65000 PRIVATE 157.132.0.0/16 19788 Getronics Government
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
65000 PRIVATE 199.4.250.0/23 19788 Getronics Government
65000 PRIVATE 204.89.132.0/23 19788 Getronics Government
65000 PRIVATE 204.145.215.0/24 19788 Getronics Government
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
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 /15:390 /16:7074 /17:1367 /18:2456
/19:7162 /20:6258 /21:4691 /22:7125 /23:8872 /24:60441
/25:312 /26:302 /27:230 /28:184 /29:116 /30:156
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1395 2176 UUNET Technologies, Inc.
1221 1366 1512 Telstra Pty Ltd
3967 808 991 Exodus Communication
8010 703 719 PublicNet Communications, Inc
702 698 1073 UUNET Technologies, Inc.
7018 563 1102 AT&T
7046 557 720 UUNET Technologies, Inc.
690 521 524 Merit Network
4323 497 586 Time Warner Communications, I
3908 487 716 Supernet, Inc.
209 443 614 Qwest
1239 440 774 Sprint
1 423 854 BBN Planet
852 366 573 Telus Advanced Communications
2764 356 401 connect.com.au pty ltd
705 353 467 UUNET Technologies, Inc.
703 320 395 UUNET Technologies, Inc.
2149 311 411 Performance Systems, Inc.
4151 298 344 USDA
3549 274 404 Global Crossing
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:439 13:10 15:1 17:5
20:1 24:825 25:1 32:73 38:13 40:4
43:1 44:2 52:1 53:2 57:12 61:167
62:158 63:1911 64:1489 65:1011 66:757 67:15
68:1 80:115 128:61 129:110 130:23 131:43
132:15 133:2 134:134 135:10 136:115 137:107
138:73 139:30 140:102 141:57 142:70 143:42
144:55 145:12 146:216 147:95 148:154 149:87
150:41 151:38 152:394 153:37 154:6 155:83
156:83 157:119 158:69 159:75 160:45 161:52
162:86 163:129 164:119 165:98 166:205 167:162
168:124 169:48 170:301 171:2 191:1 192:5335
193:2062 194:2071 195:819 196:434 198:3775 199:3308
200:2396 201:1 202:2848 203:4565 204:3327 205:2166
206:2598 207:2694 208:2619 209:2896 210:576 211:147
212:937 213:536 214:9 215:15 216:2947 217:401
218:11
End of report
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