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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 Sun 21 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114204
Prefixes after maximum aggregation: 73731
Unique aggregates announced to Internet: 54061
Total ASes present in the Internet Routing Table: 13384
Origin-only ASes present in the Internet Routing Table: 11576
Origin ASes announcing only one prefix: 5126
Transit ASes present in the Internet Routing Table: 1808
Transit-only ASes present in the Internet Routing Table: 51
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 23
Illegal AS announcements present in the Routing Table: 18
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: 1180496344
Equivalent to 70 /8s, 92 /16s and 241 /24s
Percentage of available address space announced: 31.8
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46274
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18842
Total APNIC prefixes after maximum aggregation: 11138
Prefixes being announced from the APNIC address blocks: 17369
Unique aggregates announced from the APNIC address blocks: 10571
APNIC Region origin ASes present in the Internet Routing Table: 1569
APNIC Region origin ASes announcing only one prefix: 514
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: 89469792
Equivalent to 5 /8s, 85 /16s and 51 /24s
Percentage of available APNIC address space announced: 58.8
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: 75643
Total ARIN prefixes after maximum aggregation: 48041
Prefixes being announced from the ARIN address blocks: 53703
Unique aggregates announced from the ARIN address blocks: 18008
ARIN Region origin ASes present in the Internet Routing Table: 7870
ARIN Region origin ASes announcing only one prefix: 2513
ARIN Region transit ASes present in the Internet Routing Table: 785
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 189654864
Equivalent to 11 /8s, 77 /16s and 231 /24s
Percentage of available ARIN address space announced: 70.7
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: 19705
Total RIPE prefixes after maximum aggregation: 14552
Prefixes being announced from the RIPE address blocks: 16276
Unique aggregates announced from the RIPE address blocks: 9939
RIPE Region origin ASes present in the Internet Routing Table: 3897
RIPE Region origin ASes announcing only one prefix: 2099
RIPE Region transit ASes present in the Internet Routing Table: 729
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 115744288
Equivalent to 6 /8s, 230 /16s and 30 /24s
Percentage of available RIPE address space announced: 76.7
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 1256 1207 900 Telstra Pty Ltd
4538 558 1278 26 China Education and Research
703 406 359 321 UUNET Technologies, Inc.
2907 364 1849 341 SINET Japan
2764 358 358 329 connect.com.au pty ltd
7474 319 296 213 Optus Communications Pty Ltd
17557 297 20 101 Pakistan Telecom
4755 292 112 76 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 213 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.
7539 120 184 119 TANet2, sponsored by NSC, TAI
4713 115 1009 106 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 904 2441 765 UUNET Technologies, Inc.
5515 647 785 188 Sonera Finland Autonomous Sys
3301 396 924 346 TeliaNet Sweden
3215 276 639 175 France Telecom / &Equant
3352 273 531 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 206 430 203 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 122 17 29 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 1835 9176 1379 UUNET Technologies, Inc.
7018 1296 7402 941 AT&T
3908 920 1643 500 Supernet, Inc.
1239 823 3276 644 Sprint
852 754 1175 452 Telus Advanced Communications
1 698 8067 447 GENUITY
7843 643 360 239 Adelphia Corp.
4323 626 439 258 Time Warner Communications, I
7132 583 659 133 Southwestern Bell Internet Se
209 541 2011 352 Qwest
7046 531 881 337 UUNET Technologies, Inc.
690 516 74 328 Merit Network
7066 485 203 254 Virginia Polytechnic Institut
7029 465 165 56 Alltel Information Services,
3549 430 828 310 Global Crossing
2914 387 2084 380 Verio, Inc.
2149 379 176 280 Performance Systems, Inc.
15290 377 297 192 AT&T Canada IES
6197 371 547 36 BellSouth Network Solutions,
6347 345 370 77 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 558 532 China Education and Research
5515 647 459 Sonera Finland Autonomous Sys
7132 583 450 Southwestern Bell Internet Se
3908 920 420 Supernet, Inc.
7029 465 409 Alltel Information Services,
7843 643 404 Adelphia Corp.
4323 626 368 Time Warner Communications, I
1221 1256 356 Telstra Pty Ltd
7018 1296 355 AT&T
6197 371 335 BellSouth Network Solutions,
852 754 302 Telus Advanced Communications
4151 288 272 USDA
6347 345 268 SAVVIS Communications Corpora
1 698 251 GENUITY
4355 303 251 EarthLink, Inc.
3352 273 242 Ibernet, Internet Access Netw
7066 485 231 Virginia Polytechnic Institut
18566 231 227 Covad Communications
4755 292 216 Videsh Sanchar Nigam Ltd. Aut
7303 278 215 Telecom Argentina Stet-France
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
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
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
88.128.0.0/17 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 /8:19 /9:6 /10:7 /11:12 /12:36
/13:86 /14:235 /15:415 /16:7266 /17:1457 /18:2654
/19:7696 /20:7447 /21:5229 /22:7944 /23:9721 /24:63297
/25:203 /26:178 /27:84 /28:70 /29:47 /30:72
/31:0 /32:23
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 547 904 UUNET Technologies, Inc.
701 510 1835 UUNET Technologies, Inc.
3908 504 920 Supernet, Inc.
690 458 516 Merit Network
7843 448 643 Adelphia Corp.
5515 407 647 Sonera Finland Autonomous Sys
7066 388 485 Virginia Polytechnic Institut
7029 368 465 Alltel Information Services,
7018 350 1296 AT&T
6197 257 371 BellSouth Network Solutions,
6198 238 310 BellSouth Network Solutions,
3301 233 396 TeliaNet Sweden
18566 227 231 Covad Communications
209 214 541 Qwest
1239 214 823 Sprint
3215 209 276 France Telecom / &Equant
1580 205 218 HQ, 5th Signal Command
3352 198 273 Ibernet, Internet Access Netw
7046 198 531 UUNET Technologies, Inc.
3320 195 262 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:508 13:10 15:2 17:6 20:3
24:752 25:1 32:41 38:9 40:6 44:1
57:13 61:309 62:227 63:1871 64:1196 65:1393
66:995 67:91 68:66 80:251 81:35 128:65
129:127 130:22 131:93 132:11 133:2 134:125
135:8 136:244 137:95 138:153 139:72 140:165
141:124 142:79 143:44 144:144 145:14 146:186
147:139 148:243 149:84 150:41 151:66 152:266
153:36 154:13 155:114 156:70 157:127 158:70
159:136 160:18 161:71 162:214 163:94 164:262
165:132 166:217 167:175 168:294 169:60 170:242
171:3 192:5499 193:2439 194:2169 195:918 196:410
198:3644 199:3190 200:2639 202:3289 203:4735 204:3251
205:2187 206:2668 207:2506 208:2602 209:2654 210:599
211:233 212:909 213:671 214:9 215:19 216:2812
217:468 218:28
End of report
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