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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 10 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 111921
Prefixes after maximum aggregation: 72993
Unique aggregates announced to Internet: 53164
Total ASes present in the Internet Routing Table: 13027
Origin-only ASes present in the Internet Routing Table: 11300
Origin ASes announcing only one prefix: 4950
Transit ASes present in the Internet Routing Table: 1727
Transit-only ASes present in the Internet Routing Table: 46
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: 15
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: 1189650236
Equivalent to 70 /8s, 232 /16s and 159 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45045
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18224
Total APNIC prefixes after maximum aggregation: 10949
Prefixes being announced from the APNIC address blocks: 16683
Unique aggregates announced from the APNIC address blocks: 10300
APNIC Region origin ASes present in the Internet Routing Table: 1498
APNIC Region origin ASes announcing only one prefix: 487
APNIC Region transit ASes present in the Internet Routing Table: 266
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 84490816
Equivalent to 5 /8s, 9 /16s and 58 /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: 74930
Total ARIN prefixes after maximum aggregation: 47718
Prefixes being announced from the ARIN address blocks: 53176
Unique aggregates announced from the ARIN address blocks: 16741
ARIN Region origin ASes present in the Internet Routing Table: 7698
ARIN Region origin ASes announcing only one prefix: 2428
ARIN Region transit ASes present in the Internet Routing Table: 749
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 191645380
Equivalent to 11 /8s, 108 /16s and 70 /24s
Percentage of available ARIN address space announced: 71.4
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: 18767
Total RIPE prefixes after maximum aggregation: 14326
Prefixes being announced from the RIPE address blocks: 15427
Unique aggregates announced from the RIPE address blocks: 10301
RIPE Region origin ASes present in the Internet Routing Table: 3785
RIPE Region origin ASes announcing only one prefix: 2035
RIPE Region transit ASes present in the Internet Routing Table: 698
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 108942128
Equivalent to 6 /8s, 126 /16s and 83 /24s
Percentage of available RIPE address space announced: 72.1
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 1273 1210 939 Telstra Pty Ltd
4538 477 1194 17 China Education and Research
2907 434 1878 371 SINET Japan
703 412 337 328 UUNET Technologies, Inc.
2764 396 360 363 connect.com.au pty ltd
7474 305 291 207 Optus Communications Pty Ltd
4134 279 2067 94 Data Communications Bureau
9443 275 44 63 Primus Telecommunications
17557 275 19 111 Pakistan Telecom
4755 265 109 75 Videsh Sanchar Nigam Ltd. Aut
4766 222 1518 158 Korea Internet Exchange for "
9583 168 32 5 Satyam Infoway Ltd.,
4804 167 92 66 Microplex PTY LTD
7539 165 238 159 TANet2, sponsored by NSC, TAI
4717 149 783 142 Asian Internet Interconnectio
9768 146 386 80 Korea Telecom
7657 126 22 89 The Internet Group Limited
17676 122 1937 9 XTAGE CORPORATION
4713 115 993 106 NTT Communications Corporatio
4814 114 64 6 China Telecom (Group) - Beiji
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1039 2615 854 UUNET Technologies, Inc.
3301 393 908 345 TeliaNet Sweden
5515 276 761 173 Sonera Finland Autonomous Sys
3215 265 597 164 France Telecom / &Equant
680 231 2149 230 DFN-IP service G-WiN
3320 230 1947 177 Deutsche Telekom AG
1257 209 462 206 SWIPnet Swedish IP Network
5400 199 83 94 Concert European Core Network
786 182 1874 182 The JANET IP Service
719 165 289 119 LANLINK autonomous system
8708 141 22 136 Romania Data Systems S.A.
12302 130 9 49 MobiFon S.A.
2856 126 786 116 BTnet UK Regional network
8297 125 54 69 Teleglobe Autonomous System i
3303 116 546 115 Swisscom Ltd
3269 114 694 71 TELECOM ITALIA
5511 107 191 94 France Telecom
517 101 226 97 KPNQwest Germany GmbH
2830 98 227 74 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 2068 8381 1467 UUNET Technologies, Inc.
7018 1290 7525 939 AT&T
3908 862 1642 484 Supernet, Inc.
1239 851 3392 674 Sprint
1 806 8169 451 BBN Planet
7046 738 875 513 UUNET Technologies, Inc.
852 664 1148 422 Telus Advanced Communications
4323 632 436 256 Time Warner Communications, I
209 579 1935 320 Qwest
7132 570 605 138 Southwestern Bell Internet Se
690 538 75 347 Merit Network
3549 516 856 321 Global Crossing
7066 473 202 248 Virginia Polytechnic Institut
7843 466 353 51 Adelphia Corp.
2914 417 2145 404 Verio, Inc.
705 367 100 263 UUNET Technologies, Inc.
2149 344 191 286 Performance Systems, Inc.
3741 344 731 236 The Internet Solution
6197 340 245 164 BellSouth Network Solutions,
6347 335 370 80 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 477 460 China Education and Research
7132 570 432 Southwestern Bell Internet Se
7843 466 415 Adelphia Corp.
3908 862 378 Supernet, Inc.
4323 632 376 Time Warner Communications, I
1 806 355 BBN Planet
7018 1290 351 AT&T
1221 1273 334 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 301 285 USDA
209 579 259 Qwest
6347 335 255 SAVVIS Communications Corpora
7029 260 245 Alltel Information Services,
852 664 242 Telus Advanced Communications
4355 267 229 EarthLink, Inc.
7046 738 225 UUNET Technologies, Inc.
7066 473 225 Virginia Polytechnic Institut
9443 275 212 Primus Telecommunications
6517 245 211 Yipes Communications, Inc.
6198 311 198 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
25707 UNALLOCATED 12.17.14.0/24 1239 Sprint
25707 UNALLOCATED 12.17.15.0/24 1239 Sprint
25707 UNALLOCATED 12.96.90.0/24 1239 Sprint
25707 UNALLOCATED 63.167.148.0/24 1239 Sprint
112 UNALLOCATED 192.175.48.0/24 7500 A Root DNS Server in
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
23399 UNALLOCATED 208.18.224.0/24 1239 Sprint
23399 UNALLOCATED 208.18.236.0/24 1239 Sprint
23399 UNALLOCATED 208.18.237.0/24 1239 Sprint
23399 UNALLOCATED 208.18.238.0/24 1239 Sprint
23399 UNALLOCATED 208.18.239.0/24 1239 Sprint
25733 UNALLOCATED 208.33.184.0/22 1239 Sprint
18202 UNALLOCATED 210.55.4.0/24 4648 Netgate
18202 UNALLOCATED 210.55.7.0/24 4648 Netgate
18202 UNALLOCATED 210.55.30.0/23 4648 Netgate
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 /8:20 /9:8 /10:7 /11:13 /12:32
/13:85 /14:231 /15:405 /16:7187 /17:1433 /18:2568
/19:7499 /20:7068 /21:5041 /22:7737 /23:9372 /24:62462
/25:212 /26:188 /27:80 /28:85 /29:50 /30:91
/31:0 /32:47
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 647 1039 UUNET Technologies, Inc.
701 631 2068 UUNET Technologies, Inc.
3908 452 862 Supernet, Inc.
690 446 538 Merit Network
7066 381 473 Virginia Polytechnic Institut
7046 364 738 UUNET Technologies, Inc.
7018 338 1290 AT&T
7843 271 466 Adelphia Corp.
209 268 579 Qwest
7029 245 260 Alltel Information Services,
11371 245 292 Rhythms NetConnections
6197 244 340 BellSouth Network Solutions,
1 242 806 BBN Planet
1239 240 851 Sprint
3301 236 393 TeliaNet Sweden
6198 229 311 BellSouth Network Solutions,
6517 223 245 Yipes Communications, Inc.
3549 215 516 Global Crossing
3215 200 265 France Telecom / &Equant
1580 199 211 HQ, 5th Signal Command
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:502 13:10 15:2 17:7
20:2 24:766 25:1 32:67 38:8 40:6
44:1 57:13 61:200 62:198 63:2019 64:1216
65:1316 66:921 67:70 68:9 80:245 81:21
128:59 129:138 130:23 131:47 132:12 133:3
134:120 135:8 136:316 137:93 138:150 139:53
140:180 141:119 142:82 143:38 144:148 145:12
146:176 147:132 148:164 149:93 150:41 151:60
152:287 153:33 154:3 155:100 156:74 157:125
158:69 159:131 160:18 161:64 162:149 163:101
164:271 165:127 166:229 167:171 168:122 169:55
170:306 171:2 192:5466 193:2301 194:2104 195:804
196:407 198:3748 199:3219 200:2476 202:3157 203:4532
204:3259 205:2163 206:2578 207:2669 208:2634 209:2705
210:690 211:238 212:873 213:612 214:9 215:18
216:3018 217:454 218:20
End of report
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