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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 10 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113433
Prefixes after maximum aggregation: 73440
Unique aggregates announced to Internet: 52059
Total ASes present in the Internet Routing Table: 13306
Origin-only ASes present in the Internet Routing Table: 11527
Origin ASes announcing only one prefix: 5099
Transit ASes present in the Internet Routing Table: 1779
Transit-only ASes present in the Internet Routing Table: 45
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: 1
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: 1204676092
Equivalent to 71 /8s, 205 /16s and 229 /24s
Percentage of available address space announced: 32.5
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 45787
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18589
Total APNIC prefixes after maximum aggregation: 11063
Prefixes being announced from the APNIC address blocks: 17132
Unique aggregates announced from the APNIC address blocks: 10440
APNIC Region origin ASes present in the Internet Routing Table: 1553
APNIC Region origin ASes announcing only one prefix: 501
APNIC Region transit ASes present in the Internet Routing Table: 273
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 88220256
Equivalent to 5 /8s, 66 /16s and 34 /24s
Percentage of available APNIC address space announced: 58.0
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75641
Total ARIN prefixes after maximum aggregation: 47923
Prefixes being announced from the ARIN address blocks: 53918
Unique aggregates announced from the ARIN address blocks: 16256
ARIN Region origin ASes present in the Internet Routing Table: 7836
ARIN Region origin ASes announcing only one prefix: 2510
ARIN Region transit ASes present in the Internet Routing Table: 766
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 199010644
Equivalent to 11 /8s, 220 /16s and 169 /24s
Percentage of available ARIN address space announced: 74.1
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: 19203
Total RIPE prefixes after maximum aggregation: 14454
Prefixes being announced from the RIPE address blocks: 15931
Unique aggregates announced from the RIPE address blocks: 9852
RIPE Region origin ASes present in the Internet Routing Table: 3872
RIPE Region origin ASes announcing only one prefix: 2088
RIPE Region transit ASes present in the Internet Routing Table: 719
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 115050528
Equivalent to 6 /8s, 219 /16s and 136 /24s
Percentage of available RIPE address space announced: 76.2
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 1259 1206 901 Telstra Pty Ltd
4538 449 1258 18 China Education and Research
703 409 361 323 UUNET Technologies, Inc.
2907 372 1883 345 SINET Japan
2764 368 358 338 connect.com.au pty ltd
7474 315 292 211 Optus Communications Pty Ltd
17557 306 20 110 Pakistan Telecom
4755 305 120 83 Videsh Sanchar Nigam Ltd. Aut
4134 290 2112 106 Data Communications Bureau
9443 256 45 66 Primus Telecommunications
4766 217 1506 155 Korea Internet Exchange for "
4814 211 79 14 China Telecom (Group) - Beiji
9583 177 32 5 Satyam Infoway Ltd.,
17676 154 2386 25 XTAGE CORPORATION
9768 143 384 73 Korea Telecom
7657 130 22 88 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4780 123 186 39 Digital United Inc.
4713 115 1009 106 NTT Communications Corporatio
4739 111 56 102 Commerical Internet eXchange
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 947 2460 781 UUNET Technologies, Inc.
3301 395 924 345 TeliaNet Sweden
3352 276 535 29 Ibernet, Internet Access Netw
3215 266 628 166 France Telecom / &Equant
3320 253 1946 192 Deutsche Telekom AG
5515 245 783 172 Sonera Finland Autonomous Sys
680 233 2149 230 DFN-IP service G-WiN
1257 205 430 202 SWIPnet Swedish IP Network
5400 205 83 94 Concert European Core Network
719 189 306 128 LANLINK autonomous system
786 174 1857 174 The JANET IP Service
3303 137 547 136 Swisscom Ltd
8708 135 23 133 Romania Data Systems S.A.
2856 127 787 117 BTnet UK Regional network
12302 121 17 33 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks / Clinet
5511 109 192 87 France Telecom
3233 104 10 9 RNC - Romanian Natioanal R&D
2874 102 85 39 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1847 9245 1380 UUNET Technologies, Inc.
7018 1294 7424 938 AT&T
3908 928 1643 502 Supernet, Inc.
1239 843 3340 661 Sprint
852 750 1173 447 Telus Advanced Communications
1 697 8075 446 GENUITY
4323 637 439 259 Time Warner Communications, I
7843 614 359 231 Adelphia Corp.
209 610 2010 348 Qwest
7132 579 659 133 Southwestern Bell Internet Se
7046 561 889 358 UUNET Technologies, Inc.
690 512 75 317 Merit Network
7066 481 203 251 Virginia Polytechnic Institut
7029 462 165 56 Alltel Information Services,
2149 440 180 333 Performance Systems, Inc.
3549 439 839 316 Global Crossing
2914 409 2100 386 Verio, Inc.
15290 379 297 194 AT&T Canada IES
6197 367 547 36 BellSouth Network Solutions,
6347 338 370 77 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 579 446 Southwestern Bell Internet Se
4538 449 431 China Education and Research
3908 928 426 Supernet, Inc.
7029 462 406 Alltel Information Services,
7843 614 383 Adelphia Corp.
4323 637 378 Time Warner Communications, I
1221 1259 358 Telstra Pty Ltd
7018 1294 356 AT&T
6197 367 331 BellSouth Network Solutions,
852 750 303 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 286 270 USDA
209 610 262 Qwest
6347 338 261 SAVVIS Communications Corpora
1 697 251 GENUITY
4355 303 251 EarthLink, Inc.
3352 276 247 Ibernet, Internet Access Netw
7066 481 230 Virginia Polytechnic Institut
18566 229 225 Covad Communications
4755 305 222 Videsh Sanchar Nigam Ltd. Aut
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
60.162.252.0/24 14172 Advanced Projects Internation
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
192.44.0.0/19 702 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 /8:23 /9:6 /10:7 /11:12 /12:36
/13:88 /14:234 /15:419 /16:7235 /17:1458 /18:2646
/19:7679 /20:7345 /21:5154 /22:7914 /23:9632 /24:62868
/25:201 /26:169 /27:87 /28:72 /29:53 /30:74
/31:0 /32:21
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 584 947 UUNET Technologies, Inc.
3908 515 928 Supernet, Inc.
701 505 1847 UUNET Technologies, Inc.
690 453 512 Merit Network
7843 420 614 Adelphia Corp.
7066 386 481 Virginia Polytechnic Institut
7029 365 462 Alltel Information Services,
7018 349 1294 AT&T
209 275 610 Qwest
6197 253 367 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
6198 238 310 BellSouth Network Solutions,
3301 233 395 TeliaNet Sweden
18566 225 229 Covad Communications
1239 217 843 Sprint
7046 216 561 UUNET Technologies, Inc.
1580 202 215 HQ, 5th Signal Command
3352 200 276 Ibernet, Internet Access Netw
3215 199 266 France Telecom / &Equant
1 192 697 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:505 13:10 15:2 17:6
20:3 24:794 25:1 32:41 38:9 40:6
44:1 57:13 60:1 61:275 62:218 63:1894
64:1260 65:1422 66:1008 67:89 68:46 80:246
81:33 128:63 129:133 130:22 131:51 132:11
133:2 134:124 135:8 136:242 137:93 138:149
139:70 140:143 141:123 142:80 143:41 144:151
145:14 146:188 147:137 148:219 149:90 150:43
151:67 152:260 153:34 154:14 155:106 156:77
157:128 158:70 159:135 160:18 161:71 162:213
163:95 164:268 165:131 166:220 167:170 168:126
169:61 170:261 171:3 192:5450 193:2361 194:2088
195:894 196:397 198:3631 199:3185 200:2595 202:3295
203:4679 204:3255 205:2181 206:2685 207:2527 208:2661
209:2667 210:588 211:230 212:909 213:629 214:9
215:15 216:2832 217:465 218:28
End of report
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