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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 +10GMT Thu 02 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114433
Prefixes after maximum aggregation: 72913
Unique aggregates announced to Internet: 51790
Total ASes present in the Internet Routing Table: 13011
Origin-only ASes present in the Internet Routing Table: 11282
Origin ASes announcing only one prefix: 4960
Transit ASes present in the Internet Routing Table: 1729
Transit-only ASes present in the Internet Routing Table: 52
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 43
Number of addresses announced to Internet: 1199393212
Equivalent to 71 /8s, 125 /16s and 73 /24s
Percentage of available address space announced: 32.4
Percentage of allocated address space announced: 60.3
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 47666
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18120
Total APNIC prefixes after maximum aggregation: 10877
Prefixes being announced from the APNIC address blocks: 16625
Unique aggregates announced from the APNIC address blocks: 9807
APNIC Region origin ASes present in the Internet Routing Table: 1500
APNIC Region origin ASes announcing only one prefix: 491
APNIC Region transit ASes present in the Internet Routing Table: 267
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 87920704
Equivalent to 5 /8s, 61 /16s and 144 /24s
Percentage of available APNIC address space announced: 65.0
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: 77520
Total ARIN prefixes after maximum aggregation: 47721
Prefixes being announced from the ARIN address blocks: 55473
Unique aggregates announced from the ARIN address blocks: 16426
ARIN Region origin ASes present in the Internet Routing Table: 7677
ARIN Region origin ASes announcing only one prefix: 2427
ARIN Region transit ASes present in the Internet Routing Table: 752
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 192541892
Equivalent to 11 /8s, 121 /16s and 244 /24s
Percentage of available ARIN address space announced: 71.7
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
25600 - 26623
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: 18793
Total RIPE prefixes after maximum aggregation: 14315
Prefixes being announced from the RIPE address blocks: 15467
Unique aggregates announced from the RIPE address blocks: 9699
RIPE Region origin ASes present in the Internet Routing Table: 3782
RIPE Region origin ASes announcing only one prefix: 2042
RIPE Region transit ASes present in the Internet Routing Table: 694
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 114494384
Equivalent to 6 /8s, 211 /16s and 11 /24s
Percentage of available RIPE address space announced: 75.8
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, 24576 - 25599
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 1280 1177 941 Telstra Pty Ltd
4538 477 1194 17 China Education and Research
2907 436 1894 372 SINET Japan
703 419 340 326 UUNET Technologies, Inc.
2764 397 362 364 connect.com.au pty ltd
7474 303 291 208 Optus Communications Pty Ltd
4134 280 2036 94 Data Communications Bureau
9443 274 44 63 Primus Telecommunications
17557 269 18 108 Pakistan Telecom
4755 238 109 73 Videsh Sanchar Nigam Ltd. Aut
4766 221 1518 158 Korea Internet Exchange for "
9583 169 32 5 Satyam Infoway Ltd.,
4804 167 92 66 Microplex PTY LTD
7539 166 238 160 TANet2, sponsored by NSC, TAI
9768 148 390 79 Korea Telecom
4814 125 64 5 China Telecom (Group) - Beiji
7657 124 22 87 The Internet Group Limited
17676 122 1952 9 XTAGE CORPORATION
4713 114 993 105 NTT Communications Corporatio
9800 114 4223 12 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1032 2579 847 UUNET Technologies, Inc.
3301 394 924 346 TeliaNet Sweden
5515 275 761 173 Sonera Finland Autonomous Sys
3215 265 597 164 France Telecom / &Equant
680 231 2149 230 DFN-IP service G-WiN
3320 228 1946 175 Deutsche Telekom AG
1257 209 462 206 SWIPnet Swedish IP Network
5400 198 82 93 Concert European Core Network
786 182 1874 182 The JANET IP Service
719 163 289 118 LANLINK autonomous system
8708 143 22 137 Romania Data Systems S.A.
12302 130 9 49 MobiFon S.A.
2856 126 786 116 BTnet UK Regional network
8297 123 4133 65 Teleglobe Autonomous System i
3303 117 546 116 Swisscom Ltd
3269 116 694 71 TELECOM ITALIA
5536 107 9 39 Internet Egypt Network
2118 106 109 20 EUnet/RELCOM Autonomous Syste
5511 106 191 93 France Telecom
517 101 226 97 KPNQwest Germany GmbH
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 4368 8395 1483 UUNET Technologies, Inc.
7018 1285 7538 942 AT&T
3908 872 1660 480 Supernet, Inc.
7046 818 876 592 UUNET Technologies, Inc.
1239 815 3372 652 Sprint
1 810 8184 454 BBN Planet
852 663 1148 422 Telus Advanced Communications
4323 632 436 256 Time Warner Communications, I
705 611 193 295 UUNET Technologies, Inc.
209 588 2002 327 Qwest
7132 569 604 140 Southwestern Bell Internet Se
3549 530 859 324 Global Crossing
690 483 70 310 Merit Network
7066 461 202 247 Virginia Polytechnic Institut
7843 459 346 52 Adelphia Corp.
2914 418 2146 405 Verio, Inc.
2149 349 207 291 Performance Systems, Inc.
6197 347 342 135 BellSouth Network Solutions,
3741 344 731 236 The Internet Solution
6347 330 370 79 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 477 460 China Education and Research
7132 569 429 Southwestern Bell Internet Se
7843 459 407 Adelphia Corp.
3908 872 392 Supernet, Inc.
4323 632 376 Time Warner Communications, I
1 810 356 BBN Planet
7018 1285 343 AT&T
1221 1280 339 Telstra Pty Ltd
705 611 316 UUNET Technologies, Inc.
4151 303 287 USDA
11371 292 286 Rhythms NetConnections
209 588 261 Qwest
6347 330 251 SAVVIS Communications Corpora
7029 260 245 Alltel Information Services,
852 663 241 Telus Advanced Communications
7046 818 226 UUNET Technologies, Inc.
4355 258 222 EarthLink, Inc.
7066 461 214 Virginia Polytechnic Institut
6197 347 212 BellSouth Network Solutions,
9443 274 211 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
112 UNALLOCATED 192.175.48.0/24 7500 A Root DNS Server in
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
25733 UNALLOCATED 208.33.184.0/22 1239 Sprint
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 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 BBN Planet
153.147.0.0/16 3561 Cable & Wireless USA
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.31.126.0/23 1103 SURFnet BV
192.31.128.0/21 1103 SURFnet BV
192.44.0.0/19 702 UUNET Technologies, Inc.
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.1.0/24 5515 Sonera Finland Autonomous Sys
192.83.2.0/24 5515 Sonera Finland Autonomous Sys
192.83.8.0/21 5515 Sonera Finland Autonomous Sys
192.83.14.0/24 5515 Sonera Finland Autonomous Sys
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.25.0/24 5515 Sonera Finland Autonomous Sys
192.83.32.0/19 5515 Sonera Finland Autonomous Sys
192.83.96.0/22 5515 Sonera Finland Autonomous Sys
192.83.100.0/24 5515 Sonera Finland Autonomous Sys
192.91.198.0/24 2568 CTS Network Services
192.92.167.0/24 297 NASA Science Network
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.135.248.0/23 109 Cisco Systems, Inc.
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.152.213.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.172.0.0/19 568 DISO-UNRRA
192.195.253.0/24 237 Merit Network
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 7168 Northwest Link
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:23 /9:8 /10:7 /11:13 /12:33
/13:86 /14:231 /15:404 /16:7192 /17:1429 /18:2610
/19:7489 /20:7086 /21:5046 /22:7814 /23:9594 /24:64593
/25:220 /26:190 /27:86 /28:92 /29:53 /30:92
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 2921 4368 UUNET Technologies, Inc.
702 644 1032 UUNET Technologies, Inc.
3908 451 872 Supernet, Inc.
7046 451 818 UUNET Technologies, Inc.
690 422 483 Merit Network
705 390 611 UUNET Technologies, Inc.
7066 369 461 Virginia Polytechnic Institut
7018 331 1285 AT&T
209 276 588 Qwest
7843 273 459 Adelphia Corp.
6197 247 347 BellSouth Network Solutions,
7029 245 260 Alltel Information Services,
11371 245 292 Rhythms NetConnections
1 243 810 BBN Planet
3301 236 394 TeliaNet Sweden
3549 229 530 Global Crossing
6198 228 304 BellSouth Network Solutions,
6517 219 241 Yipes Communications, Inc.
1239 207 815 Sprint
1580 202 214 HQ, 5th Signal Command
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:2 4:2 9:1 12:499 13:10 15:2
17:7 20:2 24:758 25:1 32:67 38:8
40:6 44:1 57:13 61:200 62:199 63:4005
64:1217 65:1272 66:886 67:263 68:9 80:240
81:17 128:58 129:140 130:22 131:47 132:12
133:3 134:125 135:9 136:314 137:93 138:148
139:49 140:186 141:119 142:79 143:89 144:194
145:12 146:225 147:134 148:162 149:93 150:42
151:59 152:307 153:33 154:2 155:99 156:76
157:126 158:69 159:129 160:24 161:56 162:150
163:104 164:260 165:129 166:224 167:170 168:122
169:54 170:305 171:2 192:5461 193:2290 194:2126
195:825 196:438 198:3741 199:3207 200:2404 202:3152
203:4526 204:3278 205:2186 206:2560 207:2661 208:2616
209:2730 210:661 211:212 212:869 213:601 214:9
215:18 216:3000 217:460 218:20
End of report
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