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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 Thu 18 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114064
Prefixes after maximum aggregation: 73714
Unique aggregates announced to Internet: 54606
Total ASes present in the Internet Routing Table: 13375
Origin-only ASes present in the Internet Routing Table: 11582
Origin ASes announcing only one prefix: 5138
Transit ASes present in the Internet Routing Table: 1793
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: 16
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: 41
Number of addresses announced to Internet: 1177280824
Equivalent to 70 /8s, 43 /16s and 225 /24s
Percentage of available address space announced: 31.8
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46122
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18796
Total APNIC prefixes after maximum aggregation: 11144
Prefixes being announced from the APNIC address blocks: 17315
Unique aggregates announced from the APNIC address blocks: 10561
APNIC Region origin ASes present in the Internet Routing Table: 1564
APNIC Region origin ASes announcing only one prefix: 510
APNIC Region transit ASes present in the Internet Routing Table: 277
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 89152160
Equivalent to 5 /8s, 80 /16s and 90 /24s
Percentage of available APNIC address space announced: 58.6
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: 75725
Total ARIN prefixes after maximum aggregation: 48006
Prefixes being announced from the ARIN address blocks: 53792
Unique aggregates announced from the ARIN address blocks: 18026
ARIN Region origin ASes present in the Internet Routing Table: 7870
ARIN Region origin ASes announcing only one prefix: 2524
ARIN Region transit ASes present in the Internet Routing Table: 781
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 189504336
Equivalent to 11 /8s, 75 /16s and 155 /24s
Percentage of available ARIN address space announced: 70.6
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: 19529
Total RIPE prefixes after maximum aggregation: 14564
Prefixes being announced from the RIPE address blocks: 16076
Unique aggregates announced from the RIPE address blocks: 10456
RIPE Region origin ASes present in the Internet Routing Table: 3896
RIPE Region origin ASes announcing only one prefix: 2104
RIPE Region transit ASes present in the Internet Routing Table: 723
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 112726816
Equivalent to 6 /8s, 184 /16s and 19 /24s
Percentage of available RIPE address space announced: 74.7
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 1253 1207 898 Telstra Pty Ltd
4538 553 1290 19 China Education and Research
703 411 359 326 UUNET Technologies, Inc.
2907 364 1849 341 SINET Japan
2764 358 358 329 connect.com.au pty ltd
7474 316 292 211 Optus Communications Pty Ltd
17557 295 20 106 Pakistan Telecom
4134 291 2134 102 Data Communications Bureau
4755 281 112 77 Videsh Sanchar Nigam Ltd. Aut
9443 252 45 67 Primus Telecommunications
4766 249 1506 156 Korea Internet Exchange for "
4814 216 79 14 China Telecom (Group) - Beiji
9583 177 32 5 Satyam Infoway Ltd.,
17676 162 2514 28 XTAGE CORPORATION
9768 143 384 73 Korea Telecom
7657 128 22 87 The Internet Group Limited
7539 126 185 125 TANet2, sponsored by NSC, TAI
9800 125 191 18 CHINA UNICOM
4780 122 186 39 Digital United Inc.
4713 115 1009 106 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 912 2442 769 UUNET Technologies, Inc.
5515 649 785 189 Sonera Finland Autonomous Sys
3301 397 924 347 TeliaNet Sweden
3215 276 639 174 France Telecom / &Equant
3320 260 1960 199 Deutsche Telekom AG
680 235 2150 232 DFN-IP service G-WiN
5400 207 85 96 Concert European Core Network
1257 206 430 203 SWIPnet Swedish IP Network
719 189 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
3303 140 548 139 Swisscom Ltd
8708 140 23 137 Romania Data Systems S.A.
2856 128 787 118 BTnet UK Regional network
12302 123 18 30 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks / Clinet
5511 109 192 87 France Telecom
3233 106 10 9 RNC - Romanian Natioanal R&D
2874 102 85 39 Global One Services AB
8297 95 47 53 Teleglobe Autonomous System i
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1831 9176 1375 UUNET Technologies, Inc.
7018 1294 7386 942 AT&T
3908 924 1659 504 Supernet, Inc.
1239 815 3259 638 Sprint
852 750 1175 448 Telus Advanced Communications
1 698 8059 447 GENUITY
7843 647 360 239 Adelphia Corp.
4323 626 438 257 Time Warner Communications, I
7132 583 659 133 Southwestern Bell Internet Se
7046 547 889 345 UUNET Technologies, Inc.
209 538 2011 351 Qwest
690 516 74 328 Merit Network
7066 483 203 252 Virginia Polytechnic Institut
7029 463 165 56 Alltel Information Services,
3549 436 831 314 Global Crossing
2914 406 2084 383 Verio, Inc.
2149 394 177 294 Performance Systems, Inc.
15290 378 297 193 AT&T Canada IES
6197 370 547 36 BellSouth Network Solutions,
6347 343 370 77 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 553 534 China Education and Research
5515 649 460 Sonera Finland Autonomous Sys
7132 583 450 Southwestern Bell Internet Se
3908 924 420 Supernet, Inc.
7843 647 408 Adelphia Corp.
7029 463 407 Alltel Information Services,
4323 626 369 Time Warner Communications, I
1221 1253 355 Telstra Pty Ltd
7018 1294 352 AT&T
6197 370 334 BellSouth Network Solutions,
852 750 302 Telus Advanced Communications
4151 288 272 USDA
6347 343 266 SAVVIS Communications Corpora
1 698 251 GENUITY
4355 299 247 EarthLink, Inc.
7066 483 231 Virginia Polytechnic Institut
18566 230 226 Covad Communications
7303 278 215 Telecom Argentina Stet-France
4755 281 204 Videsh Sanchar Nigam Ltd. Aut
7046 547 202 UUNET Technologies, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
65003 PRIVATE 202.92.64.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.84.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.84.0/22 9837 Powertel Ltd
65003 PRIVATE 202.92.85.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.119.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.32.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.33.0/24 9837 Powertel Ltd
65527 PRIVATE 206.98.160.0/24 6221 US Cybersites, Inc
65156 PRIVATE 206.98.164.0/24 6221 US Cybersites, Inc
65527 PRIVATE 206.98.236.0/24 6221 US Cybersites, Inc
65156 PRIVATE 206.98.244.0/24 6221 US Cybersites, Inc
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
65111 PRIVATE 207.51.32.0/24 6221 US Cybersites, Inc
65500 PRIVATE 208.144.80.0/24 6221 US Cybersites, Inc
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
88.128.0.0/17 9116 Goldenlines main autonomous s
88.128.128.0/17 9116 Goldenlines main autonomous s
88.129.0.0/17 9116 Goldenlines main autonomous s
88.129.128.0/17 9116 Goldenlines main autonomous s
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
192.83.69.0/24 5515 Sonera Finland Autonomous Sys
192.83.72.0/21 5515 Sonera Finland Autonomous Sys
192.83.80.0/20 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
192.108.46.0/23 680 DFN-IP service G-WiN
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
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
192.153.136.0/21 568 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 /8:18 /9:6 /10:7 /11:12 /12:36
/13:87 /14:235 /15:414 /16:7264 /17:1453 /18:2652
/19:7682 /20:7424 /21:5221 /22:7946 /23:9698 /24:63220
/25:203 /26:185 /27:85 /28:68 /29:48 /30:73
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 555 912 UUNET Technologies, Inc.
3908 510 924 Supernet, Inc.
701 509 1831 UUNET Technologies, Inc.
690 458 516 Merit Network
7843 454 647 Adelphia Corp.
5515 407 649 Sonera Finland Autonomous Sys
7066 387 483 Virginia Polytechnic Institut
7029 366 463 Alltel Information Services,
7018 350 1294 AT&T
6197 256 370 BellSouth Network Solutions,
6198 238 310 BellSouth Network Solutions,
3301 234 397 TeliaNet Sweden
18566 226 230 Covad Communications
209 211 538 Qwest
1239 211 815 Sprint
3215 209 276 France Telecom / &Equant
7046 205 547 UUNET Technologies, Inc.
1580 202 215 HQ, 5th Signal Command
3320 193 260 Deutsche Telekom AG
1 191 698 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:500 13:10 15:2 17:6 20:3
24:753 25:1 32:41 38:9 40:6 44:1
57:13 61:285 62:225 63:1878 64:1194 65:1389
66:1025 67:91 68:64 80:247 81:34 128:65
129:133 130:22 131:95 132:11 133:2 134:125
135:8 136:244 137:95 138:152 139:70 140:164
141:124 142:78 143:44 144:142 145:14 146:187
147:138 148:236 149:84 150:41 151:67 152:266
153:36 154:14 155:113 156:70 157:127 158:70
159:136 160:18 161:71 162:214 163:96 164:265
165:133 166:219 167:174 168:294 169:60 170:241
171:3 192:5518 193:2433 194:2140 195:781 196:409
198:3646 199:3185 200:2635 202:3308 203:4716 204:3254
205:2173 206:2688 207:2515 208:2625 209:2666 210:603
211:230 212:908 213:668 214:9 215:19 216:2856
217:466 218:28
End of report
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