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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 Mon 06 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 111987
Prefixes after maximum aggregation: 72919
Unique aggregates announced to Internet: 53159
Total ASes present in the Internet Routing Table: 13028
Origin-only ASes present in the Internet Routing Table: 11287
Origin ASes announcing only one prefix: 4949
Transit ASes present in the Internet Routing Table: 1741
Transit-only ASes present in the Internet Routing Table: 51
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 22
Illegal AS announcements present in the Routing Table: 9
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: 1189487420
Equivalent to 70 /8s, 230 /16s and 35 /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: 45152
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18158
Total APNIC prefixes after maximum aggregation: 10885
Prefixes being announced from the APNIC address blocks: 16669
Unique aggregates announced from the APNIC address blocks: 10261
APNIC Region origin ASes present in the Internet Routing Table: 1500
APNIC Region origin ASes announcing only one prefix: 488
APNIC Region transit ASes present in the Internet Routing Table: 269
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 84469312
Equivalent to 5 /8s, 8 /16s and 230 /24s
Percentage of available APNIC address space announced: 62.4
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: 75017
Total ARIN prefixes after maximum aggregation: 47742
Prefixes being announced from the ARIN address blocks: 53071
Unique aggregates announced from the ARIN address blocks: 16714
ARIN Region origin ASes present in the Internet Routing Table: 7698
ARIN Region origin ASes announcing only one prefix: 2425
ARIN Region transit ASes present in the Internet Routing Table: 757
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 191580612
Equivalent to 11 /8s, 107 /16s and 73 /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: 18812
Total RIPE prefixes after maximum aggregation: 14292
Prefixes being announced from the RIPE address blocks: 15501
Unique aggregates announced from the RIPE address blocks: 10337
RIPE Region origin ASes present in the Internet Routing Table: 3779
RIPE Region origin ASes announcing only one prefix: 2036
RIPE Region transit ASes present in the Internet Routing Table: 700
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 108982064
Equivalent to 6 /8s, 126 /16s and 239 /24s
Percentage of available RIPE address space announced: 72.2
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 1275 1210 940 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 395 360 362 connect.com.au pty ltd
7474 307 291 209 Optus Communications Pty Ltd
4134 280 2036 94 Data Communications Bureau
9443 275 44 63 Primus Telecommunications
17557 269 18 108 Pakistan Telecom
4755 256 109 73 Videsh Sanchar Nigam Ltd. Aut
4766 222 1518 158 Korea Internet Exchange for "
9583 170 32 5 Satyam Infoway Ltd.,
4804 167 92 66 Microplex PTY LTD
7539 163 222 158 TANet2, sponsored by NSC, TAI
9768 146 386 80 Korea Telecom
7657 126 22 89 The Internet Group Limited
4814 125 64 5 China Telecom (Group) - Beiji
17676 122 1952 9 XTAGE CORPORATION
4713 115 993 106 NTT Communications Corporatio
4780 113 186 39 Digital United Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1035 2564 849 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 230 1947 177 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
8708 144 22 137 Romania Data Systems S.A.
719 136 270 96 LANLINK autonomous system
12302 130 9 49 MobiFon S.A.
2856 126 786 116 BTnet UK Regional network
8297 120 53 65 Teleglobe Autonomous System i
2118 117 109 20 EUnet/RELCOM Autonomous Syste
3269 116 694 71 TELECOM ITALIA
3303 116 546 115 Swisscom Ltd
5511 107 191 94 France Telecom
5536 107 9 39 Internet Egypt Network
517 101 226 97 KPNQwest Germany GmbH
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2057 8409 1465 UUNET Technologies, Inc.
7018 1284 7524 937 AT&T
3908 877 1661 487 Supernet, Inc.
1239 846 3391 667 Sprint
1 811 8186 454 BBN Planet
7046 787 875 563 UUNET Technologies, Inc.
852 668 1148 423 Telus Advanced Communications
4323 632 436 256 Time Warner Communications, I
209 582 1920 320 Qwest
7132 569 604 140 Southwestern Bell Internet Se
3549 520 856 322 Global Crossing
690 501 72 319 Merit Network
7066 472 202 248 Virginia Polytechnic Institut
7843 456 349 48 Adelphia Corp.
2914 418 2145 405 Verio, Inc.
705 376 100 268 UUNET Technologies, Inc.
2149 346 207 288 Performance Systems, Inc.
3741 344 731 236 The Internet Solution
6197 344 342 135 BellSouth Network Solutions,
6347 336 370 81 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 456 408 Adelphia Corp.
3908 877 390 Supernet, Inc.
4323 632 376 Time Warner Communications, I
1 811 357 BBN Planet
7018 1284 347 AT&T
1221 1275 335 Telstra Pty Ltd
4151 304 288 USDA
11371 292 286 Rhythms NetConnections
209 582 262 Qwest
6347 336 255 SAVVIS Communications Corpora
7029 262 247 Alltel Information Services,
852 668 245 Telus Advanced Communications
7046 787 224 UUNET Technologies, Inc.
7066 472 224 Virginia Polytechnic Institut
4355 260 224 EarthLink, Inc.
9443 275 212 Primus Telecommunications
6517 244 210 Yipes Communications, Inc.
6197 344 209 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
25707 UNALLOCATED 63.167.148.0/24 7018 AT&T
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
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 /15:404 /16:7193 /17:1426 /18:2609
/19:7485 /20:7072 /21:5027 /22:7713 /23:9391 /24:62490
/25:223 /26:192 /27:86 /28:92 /29:53 /30:89
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 648 1035 UUNET Technologies, Inc.
701 617 2057 UUNET Technologies, Inc.
3908 453 877 Supernet, Inc.
690 440 501 Merit Network
7046 414 787 UUNET Technologies, Inc.
7066 380 472 Virginia Polytechnic Institut
7018 334 1284 AT&T
209 273 582 Qwest
7843 267 456 Adelphia Corp.
7029 247 262 Alltel Information Services,
6197 246 344 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
1 244 811 BBN Planet
1239 237 846 Sprint
3301 236 394 TeliaNet Sweden
6198 228 305 BellSouth Network Solutions,
6517 222 244 Yipes Communications, Inc.
3549 219 520 Global Crossing
1580 202 214 HQ, 5th Signal Command
3215 200 265 France Telecom / &Equant
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 9:1 12:499 13:10 15:2
17:7 20:2 24:760 25:1 32:67 38:8
40:6 44:1 57:13 61:202 62:197 63:2063
64:1215 65:1291 66:913 67:69 68:9 80:240
81:18 128:59 129:133 130:23 131:47 132:13
133:3 134:121 135:9 136:312 137:93 138:148
139:49 140:186 141:119 142:80 143:38 144:147
145:12 146:224 147:135 148:163 149:92 150:41
151:60 152:311 153:33 154:9 155:99 156:76
157:128 158:69 159:130 160:24 161:64 162:151
163:100 164:270 165:127 166:225 167:170 168:124
169:54 170:304 171:2 192:5453 193:2329 194:2121
195:827 196:440 198:3750 199:3226 200:2433 202:3158
203:4533 204:3255 205:2161 206:2565 207:2653 208:2604
209:2707 210:665 211:241 212:872 213:603 214:9
215:18 216:3016 217:455 218:21
End of report
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