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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 Sat 22 Dec, 2001
Analysis Summary
----------------
BGP routing table entries examined: 108367
Prefixes after maximum aggregation: 71977
Unique aggregates announced to Internet: 52096
Total ASes present in the Internet Routing Table: 12296
Origin-only ASes present in the Internet Routing Table: 10680
Origin ASes announcing only one prefix: 4612
Transit ASes present in the Internet Routing Table: 1616
Transit-only ASes present in the Internet Routing Table: 55
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: 0
Prefixes being announced from the IANA Reserved Address blocks: 15
Number of addresses announced to Internet: 1145089216
Equivalent to 68 /8s, 64 /16s and 172 /24s
Percentage of available address space announced: 30.9
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 73066
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17056
Total APNIC prefixes after maximum aggregation: 10596
Prefixes being announced from the APNIC address blocks: 15477
Unique aggregates announced from the APNIC address blocks: 9849
APNIC Region origin ASes present in the Internet Routing Table: 1424
APNIC Region origin ASes announcing only one prefix: 466
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: 77768560
Equivalent to 4 /8s, 162 /16s and 167 /24s
Percentage of available APNIC address space announced: 57.5
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: 73358
Total ARIN prefixes after maximum aggregation: 47472
Prefixes being announced from the ARIN address blocks: 52698
Unique aggregates announced from the ARIN address blocks: 16952
ARIN Region origin ASes present in the Internet Routing Table: 7285
ARIN Region origin ASes announcing only one prefix: 2244
ARIN Region transit ASes present in the Internet Routing Table: 742
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 180688844
Equivalent to 10 /8s, 197 /16s and 23 /24s
Percentage of available ARIN address space announced: 67.3
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: 17941
Total RIPE prefixes after maximum aggregation: 13909
Prefixes being announced from the RIPE address blocks: 14638
Unique aggregates announced from the RIPE address blocks: 9688
RIPE Region origin ASes present in the Internet Routing Table: 3533
RIPE Region origin ASes announcing only one prefix: 1902
RIPE Region transit ASes present in the Internet Routing Table: 625
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 104633856
Equivalent to 6 /8s, 60 /16s and 150 /24s
Percentage of available RIPE address space announced: 69.3
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 MaxAgg Description
1221 1505 1261 1043 Telstra Pty Ltd
703 400 346 307 UUNET Technologies, Inc.
2764 400 378 374 connect.com.au pty ltd
2907 370 1832 340 SINET Japan
7474 310 285 201 Optus Communications Pty Ltd
4755 293 117 80 Videsh Sanchar Nigam Ltd. Aut
4134 266 1874 97 Data Communications Bureau
2521 190 165 28 PSINet Japan
4766 185 1395 135 Korea Internet Exchange for "
1659 174 924 34 Taiwan Academic Network (TANe
17557 174 13 83 Pakistan Telecom
9443 172 45 68 Primus Telecommunications
9583 150 32 3 Satyam Infoway Ltd.,
4740 149 34 123 OzEmail ISP
7539 144 136 143 TANet2, sponsored by NSC, TAI
9768 141 381 87 Korea Telecom
4812 137 192 34 China Telecom (Group) - Shang
17676 125 1920 7 XTAGE CORPORATION
4713 120 942 107 NTT Communications Corporatio
7657 119 21 78 The Internet Group Limited
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1086 2656 856 UUNET Technologies, Inc.
3301 419 925 354 TeliaNet Sweden
1257 253 473 250 SWIPnet Swedish IP Network
3215 238 562 154 France Telecom / &Equant
680 233 2149 231 DFN-IP service G-WiN
5515 217 721 177 Sonera Finland Autonomous Sys
3320 196 1960 165 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
719 164 289 118 LANLINK autonomous system
8708 148 20 140 Romania Data Systems S.A.
5400 147 59 84 Concert European Core Network
5549 141 78 62 Nextra Deutschland GmbH + Co.
2856 136 777 125 BTnet UK Regional network
3303 134 575 124 Swisscom Ltd
8895 116 89 40 Saudi Arabia AS
3269 115 663 70 TELECOM ITALIA
12302 112 7 36 MobiFon S.A.
517 109 232 107 KPNQwest Germany GmbH
8297 107 31 64 Teleglobe Autonomous System i
5511 99 192 79 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2162 8830 1531 UUNET Technologies, Inc.
7018 1101 7337 859 AT&T
3967 952 363 475 Exodus Communication
705 926 377 405 UUNET Technologies, Inc.
1 871 8408 648 BBN Planet
1239 782 3169 605 Sprint
3908 764 1639 480 Supernet, Inc.
8010 719 62 12 PublicNet Communications, Inc
7046 700 823 451 UUNET Technologies, Inc.
852 634 1249 413 Telus Advanced Communications
209 616 1862 298 Qwest
4323 585 364 201 Time Warner Communications, I
690 529 76 316 Merit Network
2914 462 2227 433 Verio, Inc.
2149 404 230 338 Performance Systems, Inc.
3549 404 837 202 Global Crossing
7132 401 469 167 Southwestern Bell Internet Se
3561 383 2269 330 Cable & Wireless USA
577 353 588 221 Bell Advanced Communications
3741 350 730 239 The Internet Solution
Global Per AS Maximum Aggr summary
----------------------------------
ASN Net Savings Description
8010 707 PublicNet Communications, Inc
705 521 UUNET Technologies, Inc.
3967 477 Exodus Communication
1221 462 Telstra Pty Ltd
4323 384 Time Warner Communications, I
4151 325 USDA
209 318 Qwest
3908 284 Supernet, Inc.
11371 271 Rhythms NetConnections
7046 249 UUNET Technologies, Inc.
7018 242 AT&T
6347 238 SAVVIS Communications Corpora
7132 234 Southwestern Bell Internet Se
702 230 UUNET Technologies, Inc.
1 223 BBN Planet
852 221 Telus Advanced Communications
690 213 Merit Network
4755 213 Videsh Sanchar Nigam Ltd. Aut
3549 202 Global Crossing
4355 198 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65500 PRIVATE 62.40.11.0/24 8469 PIRONET NDH AG
65500 PRIVATE 195.227.39.0/24 8469 PIRONET NDH AG
65500 PRIVATE 195.227.73.0/24 8469 PIRONET NDH AG
65500 PRIVATE 195.227.79.0/24 8469 PIRONET NDH AG
65500 PRIVATE 195.227.88.0/24 8469 PIRONET NDH AG
65021 PRIVATE 203.75.135.0/27 3462 Data Communication B
65021 PRIVATE 203.75.210.129/32 3462 Data Communication B
65021 PRIVATE 203.75.210.130/32 3462 Data Communication B
65021 PRIVATE 203.75.210.131/32 3462 Data Communication B
65021 PRIVATE 203.75.210.132/32 3462 Data Communication B
65021 PRIVATE 203.75.232.0/27 3462 Data Communication B
65021 PRIVATE 203.75.232.160/27 3462 Data Communication B
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
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 /12:38
/13:90 /14:228 /15:392 /16:7087 /17:1377 /18:2467
/19:7191 /20:6272 /21:4721 /22:7183 /23:8941 /24:61023
/25:317 /26:302 /27:212 /28:172 /29:115 /30:148
/31:0 /32:50
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1382 2162 UUNET Technologies, Inc.
1221 1359 1505 Telstra Pty Ltd
705 809 926 UUNET Technologies, Inc.
3967 770 952 Exodus Communication
702 704 1086 UUNET Technologies, Inc.
8010 703 719 PublicNet Communications, Inc
7018 570 1101 AT&T
7046 536 700 UUNET Technologies, Inc.
690 526 529 Merit Network
3908 526 764 Supernet, Inc.
4323 495 585 Time Warner Communications, I
1239 448 782 Sprint
1 446 871 BBN Planet
209 445 616 Qwest
852 412 634 Telus Advanced Communications
2764 354 400 connect.com.au pty ltd
703 325 400 UUNET Technologies, Inc.
2149 306 404 Performance Systems, Inc.
4151 295 341 USDA
7474 275 310 Optus Communications Pty Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:447 13:10 15:2 17:5
20:1 24:804 25:1 32:75 38:14 40:4
43:1 44:2 52:1 53:2 57:13 61:167
62:155 63:2368 64:1492 65:1026 66:747 67:17
68:5 80:128 128:62 129:111 130:24 131:43
132:14 133:2 134:127 135:10 136:121 137:107
138:63 139:30 140:102 141:57 142:65 143:44
144:55 145:12 146:216 147:95 148:155 149:88
150:41 151:38 152:391 153:34 154:6 155:83
156:85 157:121 158:71 159:77 160:45 161:54
162:84 163:130 164:125 165:100 166:206 167:162
168:115 169:48 170:299 171:2 191:1 192:5362
193:2076 194:2069 195:842 196:430 198:3761 199:3318
200:2409 201:1 202:2872 203:4534 204:3327 205:2177
206:2587 207:2681 208:2609 209:2942 210:570 211:151
212:954 213:557 214:9 215:15 216:2953 217:395
218:10
End of report
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