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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 Sat 18 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 112425
Prefixes after maximum aggregation: 73281
Unique aggregates announced to Internet: 53243
Total ASes present in the Internet Routing Table: 13089
Origin-only ASes present in the Internet Routing Table: 11345
Origin ASes announcing only one prefix: 4982
Transit ASes present in the Internet Routing Table: 1744
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: 40
Number of addresses announced to Internet: 1174305212
Equivalent to 69 /8s, 254 /16s and 121 /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: 45395
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18036
Total APNIC prefixes after maximum aggregation: 10915
Prefixes being announced from the APNIC address blocks: 16544
Unique aggregates announced from the APNIC address blocks: 10264
APNIC Region origin ASes present in the Internet Routing Table: 1510
APNIC Region origin ASes announcing only one prefix: 497
APNIC Region transit ASes present in the Internet Routing Table: 271
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 84695232
Equivalent to 5 /8s, 12 /16s and 88 /24s
Percentage of available APNIC address space announced: 62.6
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: 75518
Total ARIN prefixes after maximum aggregation: 48015
Prefixes being announced from the ARIN address blocks: 53801
Unique aggregates announced from the ARIN address blocks: 16848
ARIN Region origin ASes present in the Internet Routing Table: 7731
ARIN Region origin ASes announcing only one prefix: 2444
ARIN Region transit ASes present in the Internet Routing Table: 752
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 192215748
Equivalent to 11 /8s, 116 /16s and 250 /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: 18871
Total RIPE prefixes after maximum aggregation: 14351
Prefixes being announced from the RIPE address blocks: 15568
Unique aggregates announced from the RIPE address blocks: 10367
RIPE Region origin ASes present in the Internet Routing Table: 3800
RIPE Region origin ASes announcing only one prefix: 2041
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: 109542192
Equivalent to 6 /8s, 135 /16s and 123 /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 1270 1223 914 Telstra Pty Ltd
4538 469 1194 17 China Education and Research
2907 429 1877 370 SINET Japan
703 403 337 324 UUNET Technologies, Inc.
2764 396 360 363 connect.com.au pty ltd
7474 308 291 206 Optus Communications Pty Ltd
17557 282 19 112 Pakistan Telecom
4134 281 2068 95 Data Communications Bureau
9443 272 44 63 Primus Telecommunications
4755 263 109 75 Videsh Sanchar Nigam Ltd. Aut
4766 224 1518 156 Korea Internet Exchange for "
9583 178 32 5 Satyam Infoway Ltd.,
7539 153 218 147 TANet2, sponsored by NSC, TAI
9768 146 386 80 Korea Telecom
7657 131 22 87 The Internet Group Limited
4814 127 66 13 China Telecom (Group) - Beiji
17676 125 1954 10 XTAGE CORPORATION
4780 118 186 39 Digital United Inc.
4713 114 993 105 NTT Communications Corporatio
9800 112 186 22 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1018 2608 844 UUNET Technologies, Inc.
3301 394 908 346 TeliaNet Sweden
5515 275 776 181 Sonera Finland Autonomous Sys
3215 265 597 164 France Telecom / &Equant
3320 233 1947 180 Deutsche Telekom AG
680 231 2149 230 DFN-IP service G-WiN
1257 208 430 205 SWIPnet Swedish IP Network
5400 200 83 95 Concert European Core Network
786 179 1858 179 The JANET IP Service
719 168 289 120 LANLINK autonomous system
8708 139 22 134 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 2098 8380 1460 UUNET Technologies, Inc.
7018 1290 7557 933 AT&T
3908 888 1644 486 Supernet, Inc.
1239 829 3412 670 Sprint
1 813 8185 458 BBN Planet
7046 688 871 473 UUNET Technologies, Inc.
852 664 1132 422 Telus Advanced Communications
4323 631 436 257 Time Warner Communications, I
209 580 1966 322 Qwest
7132 568 606 136 Southwestern Bell Internet Se
690 564 82 366 Merit Network
3549 516 854 321 Global Crossing
7843 503 364 57 Adelphia Corp.
7066 473 202 248 Virginia Polytechnic Institut
2914 399 2110 390 Verio, Inc.
705 368 99 260 UUNET Technologies, Inc.
3741 344 731 236 The Internet Solution
4293 342 84 265 Cable & Wireless USA
2149 341 191 283 Performance Systems, Inc.
6197 341 260 164 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 469 452 China Education and Research
7843 503 446 Adelphia Corp.
7132 568 432 Southwestern Bell Internet Se
3908 888 402 Supernet, Inc.
4323 631 374 Time Warner Communications, I
7018 1290 357 AT&T
1221 1270 356 Telstra Pty Ltd
1 813 355 BBN Planet
11371 292 286 Rhythms NetConnections
4151 300 284 USDA
209 580 258 Qwest
6347 337 258 SAVVIS Communications Corpora
7029 261 246 Alltel Information Services,
852 664 242 Telus Advanced Communications
4355 276 238 EarthLink, Inc.
7066 473 225 Virginia Polytechnic Institut
7046 688 215 UUNET Technologies, Inc.
6198 313 209 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.
192.83.14.0/24 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 /8:19 /9:6 /10:7 /11:13 /12:32
/13:85 /14:232 /15:407 /16:7199 /17:1441 /18:2573
/19:7524 /20:7106 /21:5059 /22:7747 /23:9381 /24:62770
/25:214 /26:186 /27:92 /28:98 /29:46 /30:115
/31:0 /32:73
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 665 2098 UUNET Technologies, Inc.
702 625 1018 UUNET Technologies, Inc.
3908 477 888 Supernet, Inc.
690 455 564 Merit Network
7066 378 473 Virginia Polytechnic Institut
7018 336 1290 AT&T
7046 319 688 UUNET Technologies, Inc.
7843 293 503 Adelphia Corp.
209 267 580 Qwest
1 252 813 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 231 313 BellSouth Network Solutions,
4293 220 342 Cable & Wireless USA
6517 218 240 Yipes Communications, Inc.
3549 216 516 Global Crossing
1239 215 829 Sprint
18566 205 209 Covad Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:508 13:10 15:2 17:7
20:2 24:768 25:1 32:40 38:8 40:6
44:1 57:13 61:219 62:202 63:1976 64:1197
65:1397 66:921 67:78 68:12 80:233 81:26
128:59 129:133 130:23 131:47 132:13 133:3
134:119 135:9 136:254 137:93 138:150 139:56
140:173 141:120 142:78 143:38 144:148 145:11
146:178 147:134 148:169 149:93 150:41 151:60
152:270 153:33 154:3 155:99 156:75 157:128
158:69 159:127 160:18 161:64 162:147 163:101
164:270 165:141 166:229 167:172 168:121 169:57
170:338 171:2 192:5473 193:2330 194:2103 195:841
196:410 198:3687 199:3245 200:2521 202:3154 203:4556
204:3271 205:2176 206:2654 207:2671 208:2826 209:2714
210:602 211:223 212:880 213:610 214:9 215:18
216:3028 217:454 218:17
End of report
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