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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 Tue 14 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 112399
Prefixes after maximum aggregation: 73301
Unique aggregates announced to Internet: 53047
Total ASes present in the Internet Routing Table: 13047
Origin-only ASes present in the Internet Routing Table: 11310
Origin ASes announcing only one prefix: 4954
Transit ASes present in the Internet Routing Table: 1737
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: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 44
Number of addresses announced to Internet: 1177328060
Equivalent to 70 /8s, 44 /16s and 153 /24s
Percentage of available address space announced: 31.8
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45374
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18130
Total APNIC prefixes after maximum aggregation: 10937
Prefixes being announced from the APNIC address blocks: 16629
Unique aggregates announced from the APNIC address blocks: 10322
APNIC Region origin ASes present in the Internet Routing Table: 1502
APNIC Region origin ASes announcing only one prefix: 490
APNIC Region transit ASes present in the Internet Routing Table: 268
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 84010048
Equivalent to 5 /8s, 1 /16s and 228 /24s
Percentage of available APNIC address space announced: 62.1
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: 75422
Total ARIN prefixes after maximum aggregation: 48002
Prefixes being announced from the ARIN address blocks: 53619
Unique aggregates announced from the ARIN address blocks: 16570
ARIN Region origin ASes present in the Internet Routing Table: 7707
ARIN Region origin ASes announcing only one prefix: 2432
ARIN Region transit ASes present in the Internet Routing Table: 757
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 196299716
Equivalent to 11 /8s, 179 /16s and 75 /24s
Percentage of available ARIN address space announced: 73.1
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: 18847
Total RIPE prefixes after maximum aggregation: 14362
Prefixes being announced from the RIPE address blocks: 15485
Unique aggregates announced from the RIPE address blocks: 10373
RIPE Region origin ASes present in the Internet Routing Table: 3790
RIPE Region origin ASes announcing only one prefix: 2032
RIPE Region transit ASes present in the Internet Routing Table: 696
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 109226928
Equivalent to 6 /8s, 130 /16s and 171 /24s
Percentage of available RIPE address space announced: 72.3
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 1209 936 Telstra Pty Ltd
4538 475 1066 15 China Education and Research
2907 433 1877 370 SINET Japan
703 408 337 327 UUNET Technologies, Inc.
2764 397 360 364 connect.com.au pty ltd
7474 305 291 207 Optus Communications Pty Ltd
17557 282 19 112 Pakistan Telecom
4134 281 2068 95 Data Communications Bureau
9443 275 44 63 Primus Telecommunications
4755 259 107 72 Videsh Sanchar Nigam Ltd. Aut
4766 222 1518 158 Korea Internet Exchange for "
9583 168 32 5 Satyam Infoway Ltd.,
4804 165 92 66 Microplex PTY LTD
7539 155 219 149 TANet2, sponsored by NSC, TAI
9768 146 386 80 Korea Telecom
7657 129 22 89 The Internet Group Limited
17676 125 1954 10 XTAGE CORPORATION
4780 118 186 39 Digital United Inc.
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 1040 2616 855 UUNET Technologies, Inc.
3301 393 908 345 TeliaNet Sweden
5515 276 777 173 Sonera Finland Autonomous Sys
3215 264 597 164 France Telecom / &Equant
680 231 2149 230 DFN-IP service G-WiN
3320 230 1947 177 Deutsche Telekom AG
1257 208 446 205 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 129 9 48 MobiFon S.A.
2856 126 786 116 BTnet UK Regional network
8297 125 54 69 Teleglobe Autonomous System i
3303 117 546 115 Swisscom Ltd
3269 114 694 71 TELECOM ITALIA
5511 112 193 93 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 2076 8380 1462 UUNET Technologies, Inc.
7018 1294 7559 941 AT&T
3908 874 1643 487 Supernet, Inc.
1239 852 3396 675 Sprint
1 808 8186 452 BBN Planet
7046 713 874 492 UUNET Technologies, Inc.
852 664 1132 422 Telus Advanced Communications
4323 632 436 256 Time Warner Communications, I
209 579 1935 321 Qwest
7132 571 605 139 Southwestern Bell Internet Se
690 535 75 345 Merit Network
3549 516 854 321 Global Crossing
7066 476 202 248 Virginia Polytechnic Institut
7843 476 356 52 Adelphia Corp.
2914 410 2143 397 Verio, Inc.
705 371 100 263 UUNET Technologies, Inc.
2149 344 207 286 Performance Systems, Inc.
3741 344 731 236 The Internet Solution
6197 340 245 164 BellSouth Network Solutions,
4293 338 84 261 Cable & Wireless USA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 475 460 China Education and Research
7132 571 432 Southwestern Bell Internet Se
7843 476 424 Adelphia Corp.
3908 874 387 Supernet, Inc.
4323 632 376 Time Warner Communications, I
1 808 356 BBN Planet
7018 1294 353 AT&T
1221 1270 334 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 301 285 USDA
209 579 258 Qwest
6347 338 258 SAVVIS Communications Corpora
7029 261 246 Alltel Information Services,
852 664 242 Telus Advanced Communications
4355 271 233 EarthLink, Inc.
7066 476 228 Virginia Polytechnic Institut
7046 713 221 UUNET Technologies, Inc.
6517 290 215 Yipes Communications, Inc.
9443 275 212 Primus Telecommunications
1580 214 201 HQ, 5th Signal Command
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
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 /8:20 /9:6 /10:7 /11:13 /12:32
/13:84 /14:232 /15:407 /16:7189 /17:1439 /18:2572
/19:7494 /20:7100 /21:5059 /22:7744 /23:9393 /24:62844
/25:215 /26:188 /27:81 /28:84 /29:50 /30:94
/31:0 /32:52
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 647 1040 UUNET Technologies, Inc.
701 642 2076 UUNET Technologies, Inc.
3908 463 874 Supernet, Inc.
690 443 535 Merit Network
7066 381 476 Virginia Polytechnic Institut
7046 345 713 UUNET Technologies, Inc.
7018 337 1294 AT&T
7843 278 476 Adelphia Corp.
209 267 579 Qwest
7029 246 261 Alltel Information Services,
11371 245 292 Rhythms NetConnections
6197 244 340 BellSouth Network Solutions,
1 243 808 BBN Planet
1239 240 852 Sprint
3301 236 393 TeliaNet Sweden
6198 230 312 BellSouth Network Solutions,
6517 228 290 Yipes Communications, Inc.
4293 217 338 Cable & Wireless USA
3549 216 516 Global Crossing
1580 202 214 HQ, 5th Signal Command
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:505 13:10 15:2 17:7
20:2 24:769 25:1 32:67 38:8 40:6
44:1 57:13 61:200 62:199 63:2000 64:1214
65:1341 66:931 67:70 68:10 80:236 81:24
128:59 129:139 130:23 131:47 132:13 133:3
134:121 135:9 136:316 137:92 138:150 139:53
140:184 141:120 142:82 143:38 144:148 145:12
146:178 147:136 148:167 149:93 150:41 151:61
152:286 153:33 154:3 155:100 156:74 157:125
158:68 159:127 160:18 161:64 162:147 163:100
164:274 165:122 166:229 167:170 168:121 169:55
170:305 171:2 192:5469 193:2333 194:2114 195:807
196:408 198:3747 199:3211 200:2484 202:3147 203:4551
204:3271 205:2182 206:2636 207:2694 208:2836 209:2701
210:662 211:238 212:866 213:616 214:9 215:18
216:3038 217:458 218:20
End of report
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