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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 23 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113946
Prefixes after maximum aggregation: 73766
Unique aggregates announced to Internet: 54414
Total ASes present in the Internet Routing Table: 13422
Origin-only ASes present in the Internet Routing Table: 11607
Origin ASes announcing only one prefix: 5150
Transit ASes present in the Internet Routing Table: 1815
Transit-only ASes present in the Internet Routing Table: 53
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: 12
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 38
Number of addresses announced to Internet: 1178672472
Equivalent to 70 /8s, 65 /16s and 29 /24s
Percentage of available address space announced: 31.8
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 45990
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18956
Total APNIC prefixes after maximum aggregation: 11165
Prefixes being announced from the APNIC address blocks: 17478
Unique aggregates announced from the APNIC address blocks: 10599
APNIC Region origin ASes present in the Internet Routing Table: 1573
APNIC Region origin ASes announcing only one prefix: 510
APNIC Region transit ASes present in the Internet Routing Table: 279
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 89520224
Equivalent to 5 /8s, 85 /16s and 248 /24s
Percentage of available APNIC address space announced: 58.9
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: 75668
Total ARIN prefixes after maximum aggregation: 48054
Prefixes being announced from the ARIN address blocks: 53745
Unique aggregates announced from the ARIN address blocks: 17812
ARIN Region origin ASes present in the Internet Routing Table: 7888
ARIN Region origin ASes announcing only one prefix: 2523
ARIN Region transit ASes present in the Internet Routing Table: 788
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190464336
Equivalent to 11 /8s, 90 /16s and 65 /24s
Percentage of available ARIN address space announced: 71.0
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: 19314
Total RIPE prefixes after maximum aggregation: 14547
Prefixes being announced from the RIPE address blocks: 16025
Unique aggregates announced from the RIPE address blocks: 10454
RIPE Region origin ASes present in the Internet Routing Table: 3909
RIPE Region origin ASes announcing only one prefix: 2117
RIPE Region transit ASes present in the Internet Routing Table: 733
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 112867360
Equivalent to 6 /8s, 186 /16s and 56 /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 1254 1207 897 Telstra Pty Ltd
4538 559 1278 26 China Education and Research
703 413 360 326 UUNET Technologies, Inc.
2907 364 1849 341 SINET Japan
2764 359 358 330 connect.com.au pty ltd
7474 319 296 213 Optus Communications Pty Ltd
17557 297 20 101 Pakistan Telecom
4755 293 112 77 Videsh Sanchar Nigam Ltd. Aut
4134 291 2134 102 Data Communications Bureau
9443 252 45 67 Primus Telecommunications
4766 249 1506 156 Korea Internet Exchange for "
4814 215 79 14 China Telecom (Group) - Beiji
9583 181 32 5 Satyam Infoway Ltd.,
17676 165 2562 30 XTAGE CORPORATION
9768 143 384 73 Korea Telecom
7657 128 22 87 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4780 122 186 39 Digital United Inc.
4621 115 11 63 UNINET-TH
4713 115 1009 106 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 907 2444 765 UUNET Technologies, Inc.
3301 396 924 346 TeliaNet Sweden
5515 313 783 174 Sonera Finland Autonomous Sys
3215 275 638 174 France Telecom / &Equant
3352 274 531 31 Ibernet, Internet Access Netw
3320 262 1962 201 Deutsche Telekom AG
680 235 2150 232 DFN-IP service G-WiN
5400 208 85 97 Concert European Core Network
1257 207 430 202 SWIPnet Swedish IP Network
719 182 306 127 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 121 17 28 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks / Clinet
5511 110 192 88 France Telecom
3233 106 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 1825 9165 1376 UUNET Technologies, Inc.
7018 1298 7402 943 AT&T
3908 920 1643 501 Supernet, Inc.
1239 811 3276 641 Sprint
852 754 1175 452 Telus Advanced Communications
1 697 8067 446 GENUITY
7843 646 360 240 Adelphia Corp.
4323 627 439 258 Time Warner Communications, I
7132 583 659 133 Southwestern Bell Internet Se
7046 545 889 335 UUNET Technologies, Inc.
209 540 2010 351 Qwest
690 516 74 328 Merit Network
7066 485 203 254 Virginia Polytechnic Institut
7029 465 165 56 Alltel Information Services,
3549 431 828 316 Global Crossing
2149 379 176 280 Performance Systems, Inc.
15290 378 297 193 AT&T Canada IES
6197 371 547 36 BellSouth Network Solutions,
2914 367 2083 367 Verio, Inc.
6347 345 370 77 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 559 533 China Education and Research
7132 583 450 Southwestern Bell Internet Se
3908 920 419 Supernet, Inc.
7029 465 409 Alltel Information Services,
7843 646 406 Adelphia Corp.
4323 627 369 Time Warner Communications, I
1221 1254 357 Telstra Pty Ltd
7018 1298 355 AT&T
6197 371 335 BellSouth Network Solutions,
852 754 302 Telus Advanced Communications
4151 287 271 USDA
6347 345 268 SAVVIS Communications Corpora
1 697 251 GENUITY
4355 301 249 EarthLink, Inc.
3352 274 243 Ibernet, Internet Access Netw
7066 485 231 Virginia Polytechnic Institut
18566 231 227 Covad Communications
4755 293 216 Videsh Sanchar Nigam Ltd. Aut
7303 278 215 Telecom Argentina Stet-France
7046 545 210 UUNET Technologies, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
26108 UNALLOCATED 64.70.35.0/24 3967 Exodus Communication
26108 UNALLOCATED 65.241.50.0/24 3967 Exodus Communication
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
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
22919 UNALLOCATED 209.152.32.0/19 1 GENUITY
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
88.178.0.0/17 9116 Goldenlines main autonomous s
88.178.128.0/17 9116 Goldenlines main autonomous s
88.179.0.0/17 9116 Goldenlines main autonomous s
88.179.128.0/17 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
192.83.96.0/22 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 /8:19 /9:6 /10:7 /11:12 /12:36
/13:86 /14:235 /15:415 /16:7268 /17:1457 /18:2656
/19:7700 /20:7447 /21:5234 /22:7923 /23:9702 /24:63091
/25:196 /26:160 /27:84 /28:69 /29:49 /30:71
/31:0 /32:23
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 549 907 UUNET Technologies, Inc.
701 507 1825 UUNET Technologies, Inc.
3908 504 920 Supernet, Inc.
690 458 516 Merit Network
7843 451 646 Adelphia Corp.
7066 388 485 Virginia Polytechnic Institut
7029 368 465 Alltel Information Services,
7018 352 1298 AT&T
6197 257 371 BellSouth Network Solutions,
6198 238 310 BellSouth Network Solutions,
3301 233 396 TeliaNet Sweden
18566 227 231 Covad Communications
209 214 540 Qwest
3215 208 275 France Telecom / &Equant
7046 207 545 UUNET Technologies, Inc.
1580 204 217 HQ, 5th Signal Command
1239 199 811 Sprint
3352 199 274 Ibernet, Internet Access Netw
3320 195 262 Deutsche Telekom AG
1 190 697 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:509 13:10 15:2 17:6 20:3
24:762 25:1 32:41 38:8 40:6 44:1
57:13 61:315 62:227 63:1873 64:1200 65:1387
66:982 67:90 68:67 80:249 81:34 128:65
129:127 130:22 131:53 132:11 133:2 134:125
135:8 136:244 137:95 138:153 139:72 140:166
141:123 142:79 143:44 144:144 145:14 146:189
147:139 148:244 149:83 150:39 151:67 152:266
153:36 154:11 155:114 156:70 157:127 158:70
159:136 160:18 161:72 162:214 163:94 164:261
165:132 166:218 167:175 168:294 169:60 170:243
171:3 192:5428 193:2377 194:2090 195:906 196:409
198:3645 199:3196 200:2642 202:3341 203:4751 204:3251
205:2190 206:2662 207:2506 208:2603 209:2660 210:596
211:235 212:895 213:658 214:9 215:19 216:2818
217:465 218:28
End of report
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