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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 Wed 20 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 109989
Prefixes after maximum aggregation: 72334
Unique aggregates announced to Internet: 53288
Total ASes present in the Internet Routing Table: 12791
Origin-only ASes present in the Internet Routing Table: 11076
Origin ASes announcing only one prefix: 4853
Transit ASes present in the Internet Routing Table: 1715
Transit-only ASes present in the Internet Routing Table: 56
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 19
Illegal AS announcements present in the Routing Table: 2
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: 1161212840
Equivalent to 69 /8s, 54 /16s and 179 /24s
Percentage of available address space announced: 31.3
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 73650
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18023
Total APNIC prefixes after maximum aggregation: 10702
Prefixes being announced from the APNIC address blocks: 16545
Unique aggregates announced from the APNIC address blocks: 10020
APNIC Region origin ASes present in the Internet Routing Table: 1471
APNIC Region origin ASes announcing only one prefix: 486
APNIC Region transit ASes present in the Internet Routing Table: 259
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 81994816
Equivalent to 4 /8s, 227 /16s and 36 /24s
Percentage of available APNIC address space announced: 60.6
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: 73533
Total ARIN prefixes after maximum aggregation: 47498
Prefixes being announced from the ARIN address blocks: 51957
Unique aggregates announced from the ARIN address blocks: 17377
ARIN Region origin ASes present in the Internet Routing Table: 7569
ARIN Region origin ASes announcing only one prefix: 2367
ARIN Region transit ASes present in the Internet Routing Table: 768
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 183200964
Equivalent to 10 /8s, 235 /16s and 108 /24s
Percentage of available ARIN address space announced: 68.2
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: 18433
Total RIPE prefixes after maximum aggregation: 14134
Prefixes being announced from the RIPE address blocks: 15144
Unique aggregates announced from the RIPE address blocks: 10142
RIPE Region origin ASes present in the Internet Routing Table: 3694
RIPE Region origin ASes announcing only one prefix: 2000
RIPE Region transit ASes present in the Internet Routing Table: 676
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 107284512
Equivalent to 6 /8s, 101 /16s and 8 /24s
Percentage of available RIPE address space announced: 71.1
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, 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 1291 1229 953 Telstra Pty Ltd
4538 464 1194 15 China Education and Research
2907 411 1910 371 SINET Japan
703 408 334 316 UUNET Technologies, Inc.
2764 385 361 361 connect.com.au pty ltd
7474 298 289 202 Optus Communications Pty Ltd
4755 295 111 84 Videsh Sanchar Nigam Ltd. Aut
4134 274 1962 97 Data Communications Bureau
9443 274 44 63 Primus Telecommunications
9394 257 113 4 CHINA RAILWAY Internet(CRNET)
17557 245 16 100 Pakistan Telecom
4766 208 1516 146 Korea Internet Exchange for "
4804 165 84 68 Microplex PTY LTD
7539 163 238 156 TANet2, sponsored by NSC, TAI
9583 147 32 5 Satyam Infoway Ltd.,
9768 137 385 82 Korea Telecom
4713 128 922 105 NTT Communications Corporatio
7657 122 22 85 The Internet Group Limited
4780 118 186 40 Digital United Inc.
17676 118 1888 16 XTAGE CORPORATION
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1032 2611 844 UUNET Technologies, Inc.
3301 394 924 349 TeliaNet Sweden
5515 272 697 171 Sonera Finland Autonomous Sys
3215 262 570 157 France Telecom / &Equant
1257 235 486 231 SWIPnet Swedish IP Network
680 231 2147 230 DFN-IP service G-WiN
5400 198 83 93 Concert European Core Network
3320 197 1964 172 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
719 163 289 118 LANLINK autonomous system
8708 158 23 146 Romania Data Systems S.A.
2856 129 788 118 BTnet UK Regional network
3303 124 579 124 Swisscom Ltd
12302 123 8 44 MobiFon S.A.
8297 118 37 66 Teleglobe Autonomous System i
3269 117 694 71 TELECOM ITALIA
517 104 227 100 KPNQwest Germany GmbH
5511 101 193 89 France Telecom
9051 101 6 25 INCONET Autonomous System
2874 97 100 37 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2119 8337 1500 UUNET Technologies, Inc.
7018 1215 7510 905 AT&T
3908 846 1675 482 Supernet, Inc.
1 816 8124 610 BBN Planet
1239 800 3367 627 Sprint
4323 635 436 253 Time Warner Communications, I
852 628 1127 414 Telus Advanced Communications
7046 596 833 387 UUNET Technologies, Inc.
209 552 1992 317 Qwest
7132 518 545 158 Southwestern Bell Internet Se
3549 491 844 248 Global Crossing
690 457 68 302 Merit Network
2914 414 2171 411 Verio, Inc.
7843 390 313 50 Adelphia Corp.
705 382 116 274 UUNET Technologies, Inc.
2149 378 225 315 Performance Systems, Inc.
3741 344 731 234 The Internet Solution
6197 326 215 168 BellSouth Network Solutions,
577 322 602 215 Bell Advanced Communications
6347 319 370 82 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 464 449 China Education and Research
4323 635 382 Time Warner Communications, I
3908 846 364 Supernet, Inc.
7132 518 360 Southwestern Bell Internet Se
7843 390 340 Adelphia Corp.
1221 1291 338 Telstra Pty Ltd
7018 1215 310 AT&T
4151 305 289 USDA
6198 310 277 BellSouth Network Solutions,
11371 277 271 Rhythms NetConnections
9394 257 253 CHINA RAILWAY Internet(CRNET)
3549 491 243 Global Crossing
6347 319 237 SAVVIS Communications Corpora
209 552 235 Qwest
7029 245 230 Alltel Information Services,
852 628 214 Telus Advanced Communications
4755 295 211 Videsh Sanchar Nigam Ltd. Aut
9443 274 211 Primus Telecommunications
7046 596 209 UUNET Technologies, Inc.
1 816 206 BBN Planet
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
112 UNALLOCATED 192.175.48.0/24 3557 Vixie Enterprises
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
96.0.0.0/20 3549 Global Crossing
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
144.7.0.0/16 701 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 /10:8 /11:14 /12:35
/13:89 /14:230 /15:404 /16:7182 /17:1389 /18:2559
/19:7419 /20:6933 /21:4898 /22:7503 /23:9154 /24:61236
/25:219 /26:235 /27:105 /28:91 /29:92 /30:130
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1383 2119 UUNET Technologies, Inc.
1221 1147 1291 Telstra Pty Ltd
702 656 1032 UUNET Technologies, Inc.
7018 636 1215 AT&T
3908 579 846 Supernet, Inc.
4323 505 635 Time Warner Communications, I
1239 458 800 Sprint
690 452 457 Merit Network
7046 409 596 UUNET Technologies, Inc.
1 406 816 BBN Planet
852 382 628 Telus Advanced Communications
209 366 552 Qwest
3549 353 491 Global Crossing
2764 341 385 connect.com.au pty ltd
703 329 408 UUNET Technologies, Inc.
705 329 382 UUNET Technologies, Inc.
2149 286 378 Performance Systems, Inc.
6197 275 326 BellSouth Network Solutions,
7066 272 301 Virginia Polytechnic Institut
11371 271 277 Rhythms NetConnections
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 9:1 12:479 13:10 15:2 17:5
20:2 24:739 25:1 32:68 38:9 40:6
44:1 57:14 61:278 62:168 63:1897 64:1169
65:1083 66:822 67:53 80:212 81:7 128:64
129:130 130:23 131:56 132:11 133:3 134:126
135:10 136:285 137:102 138:148 139:49 140:188
141:90 142:85 143:37 144:143 145:12 146:218
147:157 148:135 149:92 150:41 151:50 152:352
153:33 154:8 155:90 156:76 157:118 158:73
159:125 160:24 161:55 162:139 163:107 164:97
165:123 166:224 167:191 168:95 169:50 170:290
171:2 192:5449 193:2215 194:2106 195:800 196:428
198:3717 199:3220 200:2371 201:1 202:3075 203:4558
204:3301 205:2147 206:2504 207:2649 208:2570 209:2806
210:573 211:201 212:877 213:592 214:9 215:18
216:3014 217:460 218:21
End of report
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