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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 Fri 17 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 112287
Prefixes after maximum aggregation: 73236
Unique aggregates announced to Internet: 53270
Total ASes present in the Internet Routing Table: 13069
Origin-only ASes present in the Internet Routing Table: 11329
Origin ASes announcing only one prefix: 4974
Transit ASes present in the Internet Routing Table: 1740
Transit-only ASes present in the Internet Routing Table: 48
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 11
Non-routable prefixes present in the Routing Table: 1
Prefixes being announced from the IANA Reserved Address blocks: 44
Number of addresses announced to Internet: 1173603916
Equivalent to 69 /8s, 243 /16s and 198 /24s
Percentage of available address space announced: 31.7
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45311
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18062
Total APNIC prefixes after maximum aggregation: 10923
Prefixes being announced from the APNIC address blocks: 16579
Unique aggregates announced from the APNIC address blocks: 10334
APNIC Region origin ASes present in the Internet Routing Table: 1505
APNIC Region origin ASes announcing only one prefix: 494
APNIC Region transit ASes present in the Internet Routing Table: 270
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 84567360
Equivalent to 5 /8s, 10 /16s and 101 /24s
Percentage of available APNIC address space announced: 62.5
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: 75392
Total ARIN prefixes after maximum aggregation: 47983
Prefixes being announced from the ARIN address blocks: 53700
Unique aggregates announced from the ARIN address blocks: 16781
ARIN Region origin ASes present in the Internet Routing Table: 7720
ARIN Region origin ASes announcing only one prefix: 2441
ARIN Region transit ASes present in the Internet Routing Table: 751
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 192230596
Equivalent to 11 /8s, 117 /16s and 52 /24s
Percentage of available ARIN address space announced: 71.6
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: 18833
Total RIPE prefixes after maximum aggregation: 14330
Prefixes being announced from the RIPE address blocks: 15531
Unique aggregates announced from the RIPE address blocks: 10331
RIPE Region origin ASes present in the Internet Routing Table: 3796
RIPE Region origin ASes announcing only one prefix: 2039
RIPE Region transit ASes present in the Internet Routing Table: 704
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 109529136
Equivalent to 6 /8s, 135 /16s and 72 /24s
Percentage of available RIPE address space announced: 72.5
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 1267 1209 932 Telstra Pty Ltd
4538 478 1194 17 China Education and Research
2907 437 1911 374 SINET Japan
703 406 337 326 UUNET Technologies, Inc.
2764 377 359 346 connect.com.au pty ltd
7474 308 291 206 Optus Communications Pty Ltd
4134 281 2068 95 Data Communications Bureau
17557 279 19 110 Pakistan Telecom
9443 272 44 63 Primus Telecommunications
4755 256 107 74 Videsh Sanchar Nigam Ltd. Aut
4766 220 1518 156 Korea Internet Exchange for "
9583 175 32 5 Satyam Infoway Ltd.,
7539 152 218 146 TANet2, sponsored by NSC, TAI
9768 146 386 80 Korea Telecom
7657 130 22 86 The Internet Group Limited
4814 127 66 13 China Telecom (Group) - Beiji
17676 125 1954 10 XTAGE CORPORATION
4780 119 186 39 Digital United Inc.
4713 115 993 106 NTT Communications Corporatio
9800 114 186 22 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1034 2607 853 UUNET Technologies, Inc.
3301 394 908 346 TeliaNet Sweden
5515 278 777 175 Sonera Finland Autonomous Sys
3215 265 597 164 France Telecom / &Equant
680 231 2149 230 DFN-IP service G-WiN
3320 231 1947 178 Deutsche Telekom AG
1257 208 430 205 SWIPnet Swedish IP Network
5400 200 83 95 Concert European Core Network
786 182 1874 182 The JANET IP Service
719 168 289 120 LANLINK autonomous system
8708 141 22 136 Romania Data Systems S.A.
12302 130 9 48 MobiFon S.A.
2856 126 786 116 BTnet UK Regional network
3303 117 546 115 Swisscom Ltd
3269 115 694 71 TELECOM ITALIA
8297 115 57 64 Teleglobe Autonomous System i
5511 111 191 92 France Telecom
517 101 226 97 KPNQwest Germany GmbH
2830 100 244 76 UUNET Dual-Homed customers
2874 97 84 37 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2088 8380 1458 UUNET Technologies, Inc.
7018 1293 7558 935 AT&T
3908 881 1644 487 Supernet, Inc.
1239 828 3412 669 Sprint
1 812 8185 459 BBN Planet
7046 690 872 476 UUNET Technologies, Inc.
852 664 1132 422 Telus Advanced Communications
4323 632 436 257 Time Warner Communications, I
209 580 1935 321 Qwest
7132 568 606 136 Southwestern Bell Internet Se
690 565 82 367 Merit Network
3549 516 854 321 Global Crossing
7843 501 364 56 Adelphia Corp.
7066 473 202 248 Virginia Polytechnic Institut
2914 407 2142 394 Verio, Inc.
705 371 99 263 UUNET Technologies, Inc.
3741 344 731 236 The Internet Solution
2149 343 191 285 Performance Systems, Inc.
4293 342 84 265 Cable & Wireless USA
6197 341 260 164 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 478 461 China Education and Research
7843 501 445 Adelphia Corp.
7132 568 432 Southwestern Bell Internet Se
3908 881 394 Supernet, Inc.
4323 632 375 Time Warner Communications, I
7018 1293 358 AT&T
1 812 353 BBN Planet
1221 1267 335 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 300 284 USDA
209 580 259 Qwest
6347 338 258 SAVVIS Communications Corpora
7029 261 246 Alltel Information Services,
852 664 242 Telus Advanced Communications
4355 273 235 EarthLink, Inc.
7066 473 225 Virginia Polytechnic Institut
7046 690 214 UUNET Technologies, Inc.
6198 315 209 BellSouth Network Solutions,
9443 272 209 Primus Telecommunications
6517 240 206 Yipes Communications, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18189 UNALLOCATED 202.59.196.0/24 703 UUNET Technologies,
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
25810 UNALLOCATED 209.242.165.32/27 195 San Diego Supercompu
25810 UNALLOCATED 209.242.165.128/25 195 San Diego Supercompu
25810 UNALLOCATED 209.242.166.0/26 195 San Diego Supercompu
25810 UNALLOCATED 209.242.166.72/29 195 San Diego Supercompu
25810 UNALLOCATED 209.242.166.80/28 195 San Diego Supercompu
25810 UNALLOCATED 209.242.166.96/29 195 San Diego Supercompu
25810 UNALLOCATED 209.242.166.112/28 195 San Diego Supercompu
25810 UNALLOCATED 209.242.166.128/29 195 San Diego Supercompu
25810 UNALLOCATED 209.242.166.160/27 195 San Diego Supercompu
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.0.2.0/24 1103 SURFnet BV
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
192.136.136.0/22 568 DISO-UNRRA
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 /8:19 /9:6 /10:7 /11:13 /12:32
/13:85 /14:232 /15:407 /16:7190 /17:1442 /18:2573
/19:7514 /20:7109 /21:5046 /22:7742 /23:9390 /24:62665
/25:213 /26:188 /27:89 /28:98 /29:46 /30:115
/31:0 /32:66
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 657 2088 UUNET Technologies, Inc.
702 642 1034 UUNET Technologies, Inc.
3908 470 881 Supernet, Inc.
690 456 565 Merit Network
7066 378 473 Virginia Polytechnic Institut
7018 335 1293 AT&T
7046 321 690 UUNET Technologies, Inc.
7843 292 501 Adelphia Corp.
209 268 580 Qwest
1 251 812 BBN Planet
7029 246 261 Alltel Information Services,
6197 245 341 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 237 394 TeliaNet Sweden
6198 231 315 BellSouth Network Solutions,
4293 220 342 Cable & Wireless USA
6517 218 240 Yipes Communications, Inc.
3549 216 516 Global Crossing
1239 214 828 Sprint
1580 202 214 HQ, 5th Signal Command
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:506 13:10 15:2 17:7
20:2 24:768 25:1 32:40 38:8 40:6
44:1 57:13 61:220 62:200 63:1971 64:1198
65:1382 66:918 67:75 68:11 80:231 81:26
128:59 129:132 130:23 131:47 132:13 133:3
134:118 135:9 136:254 137:93 138:150 139:56
140:180 141:120 142:78 143:38 144:148 145:11
146:178 147:134 148:168 149:94 150:42 151:60
152:271 153:33 154:3 155:100 156:74 157:128
158:69 159:127 160:18 161:64 162:147 163:101
164:272 165:141 166:229 167:170 168:124 169:56
170:327 171:2 192:5451 193:2315 194:2103 195:811
196:412 198:3693 199:3242 200:2533 202:3163 203:4546
204:3240 205:2180 206:2650 207:2671 208:2828 209:2695
210:616 211:223 212:880 213:622 214:9 215:18
216:3030 217:450 218:20
End of report
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