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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 Wed 03 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113389
Prefixes after maximum aggregation: 73477
Unique aggregates announced to Internet: 54060
Total ASes present in the Internet Routing Table: 13308
Origin-only ASes present in the Internet Routing Table: 11514
Origin ASes announcing only one prefix: 5115
Transit ASes present in the Internet Routing Table: 1794
Transit-only ASes present in the Internet Routing Table: 52
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 36
Number of addresses announced to Internet: 1195152604
Equivalent to 71 /8s, 60 /16s and 148 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45888
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18605
Total APNIC prefixes after maximum aggregation: 11076
Prefixes being announced from the APNIC address blocks: 17100
Unique aggregates announced from the APNIC address blocks: 10477
APNIC Region origin ASes present in the Internet Routing Table: 1552
APNIC Region origin ASes announcing only one prefix: 506
APNIC Region transit ASes present in the Internet Routing Table: 272
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 87949152
Equivalent to 5 /8s, 61 /16s and 255 /24s
Percentage of available APNIC address space announced: 65.0
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: 75635
Total ARIN prefixes after maximum aggregation: 47931
Prefixes being announced from the ARIN address blocks: 53812
Unique aggregates announced from the ARIN address blocks: 17631
ARIN Region origin ASes present in the Internet Routing Table: 7828
ARIN Region origin ASes announcing only one prefix: 2514
ARIN Region transit ASes present in the Internet Routing Table: 775
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 192582484
Equivalent to 11 /8s, 122 /16s and 147 /24s
Percentage of available ARIN address space announced: 71.7
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: 19148
Total RIPE prefixes after maximum aggregation: 14470
Prefixes being announced from the RIPE address blocks: 15878
Unique aggregates announced from the RIPE address blocks: 10456
RIPE Region origin ASes present in the Internet Routing Table: 3876
RIPE Region origin ASes announcing only one prefix: 2095
RIPE Region transit ASes present in the Internet Routing Table: 722
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 111859744
Equivalent to 6 /8s, 170 /16s and 216 /24s
Percentage of available RIPE address space announced: 74.1
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 1265 1223 905 Telstra Pty Ltd
4538 443 1258 17 China Education and Research
703 399 357 318 UUNET Technologies, Inc.
2764 369 359 338 connect.com.au pty ltd
2907 365 1864 340 SINET Japan
7474 311 292 208 Optus Communications Pty Ltd
4755 299 117 82 Videsh Sanchar Nigam Ltd. Aut
17557 291 19 112 Pakistan Telecom
4134 289 2114 105 Data Communications Bureau
9443 261 45 66 Primus Telecommunications
4713 226 1009 106 NTT Communications Corporatio
4766 217 1506 155 Korea Internet Exchange for "
4814 206 79 14 China Telecom (Group) - Beiji
9583 176 32 5 Satyam Infoway Ltd.,
7539 152 202 147 TANet2, sponsored by NSC, TAI
17676 152 2354 23 XTAGE CORPORATION
9768 143 384 73 Korea Telecom
7657 130 22 88 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4621 111 11 62 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 973 2499 806 UUNET Technologies, Inc.
3301 396 924 345 TeliaNet Sweden
3352 280 535 29 Ibernet, Internet Access Netw
3215 266 614 165 France Telecom / &Equant
3320 243 1947 195 Deutsche Telekom AG
680 233 2149 230 DFN-IP service G-WiN
5515 206 783 172 Sonera Finland Autonomous Sys
1257 205 430 202 SWIPnet Swedish IP Network
5400 205 83 94 Concert European Core Network
719 190 306 128 LANLINK autonomous system
786 178 1873 177 The JANET IP Service
8708 141 23 138 Romania Data Systems S.A.
3303 135 546 134 Swisscom Ltd
2856 126 786 116 BTnet UK Regional network
12302 123 18 36 MobiFon S.A.
3246 111 301 106 Song Networks / Clinet
3269 111 690 68 TELECOM ITALIA
5511 108 192 87 France Telecom
2874 101 85 39 Global One Services AB
8297 98 47 55 Teleglobe Autonomous System i
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1854 9255 1381 UUNET Technologies, Inc.
7018 1288 7454 931 AT&T
3908 921 1643 498 Supernet, Inc.
1239 821 3341 644 Sprint
1 719 8075 446 GENUITY
852 681 1173 447 Telus Advanced Communications
4323 632 438 259 Time Warner Communications, I
7843 628 356 248 Adelphia Corp.
209 606 2010 346 Qwest
7132 579 659 133 Southwestern Bell Internet Se
7046 575 891 370 UUNET Technologies, Inc.
690 513 75 315 Merit Network
7066 478 202 251 Virginia Polytechnic Institut
7029 477 167 58 Alltel Information Services,
2149 450 181 342 Performance Systems, Inc.
3549 444 839 319 Global Crossing
2914 406 2100 383 Verio, Inc.
15290 381 297 196 AT&T Canada IES
6197 347 248 169 BellSouth Network Solutions,
6347 337 370 78 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 579 446 Southwestern Bell Internet Se
4538 443 426 China Education and Research
3908 921 423 Supernet, Inc.
7029 477 419 Alltel Information Services,
7843 628 380 Adelphia Corp.
4323 632 373 Time Warner Communications, I
1221 1265 360 Telstra Pty Ltd
7018 1288 357 AT&T
11371 292 286 Rhythms NetConnections
1 719 273 GENUITY
4151 289 273 USDA
209 606 260 Qwest
6347 337 259 SAVVIS Communications Corpora
3352 280 251 Ibernet, Internet Access Netw
4355 301 249 EarthLink, Inc.
852 681 234 Telus Advanced Communications
7066 478 227 Virginia Polytechnic Institut
4454 249 226 OIR Telecommunications, State
18566 228 224 Covad Communications
6198 323 218 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65000 PRIVATE 145.8.176.0/24 12469 Infonet Netherlands
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 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.5.154.0/24 16588 Spider Web Hosting Solutions
192.26.98.0/24 1239 Sprint
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.
192.83.16.0/20 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 /9:6 /10:7 /11:12 /12:36
/13:87 /14:233 /15:418 /16:7230 /17:1451 /18:2633
/19:7687 /20:7317 /21:5141 /22:7908 /23:9632 /24:62944
/25:195 /26:162 /27:72 /28:64 /29:43 /30:72
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 601 973 UUNET Technologies, Inc.
3908 510 921 Supernet, Inc.
701 509 1854 UUNET Technologies, Inc.
690 454 513 Merit Network
7843 434 628 Adelphia Corp.
7066 383 478 Virginia Polytechnic Institut
7029 375 477 Alltel Information Services,
7018 348 1288 AT&T
209 271 606 Qwest
6197 249 347 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
6198 236 323 BellSouth Network Solutions,
3301 234 396 TeliaNet Sweden
7046 225 575 UUNET Technologies, Inc.
18566 224 228 Covad Communications
1239 209 821 Sprint
1 208 719 GENUITY
1580 204 234 HQ, 5th Signal Command
3352 204 280 Ibernet, Internet Access Netw
3215 199 266 France Telecom / &Equant
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 9:1 12:501 13:10 15:2 17:6
20:2 24:807 25:1 32:41 38:9 40:6
44:1 57:13 61:274 62:208 63:1904 64:1248
65:1405 66:995 67:90 68:47 80:251 81:35
128:64 129:135 130:22 131:48 132:11 133:2
134:121 135:8 136:242 137:91 138:149 139:68
140:175 141:123 142:81 143:40 144:154 145:14
146:183 147:137 148:220 149:91 150:40 151:67
152:261 153:33 154:14 155:106 156:77 157:126
158:68 159:128 160:18 161:69 162:210 163:99
164:269 165:129 166:222 167:169 168:126 169:61
170:349 171:3 192:5439 193:2334 194:2042 195:934
196:395 198:3644 199:3186 200:2562 202:3244 203:4659
204:3255 205:2170 206:2681 207:2557 208:2662 209:2664
210:592 211:228 212:894 213:646 214:9 215:19
216:2844 217:473 218:45 219:81
End of report
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