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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 Fri 19 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114236
Prefixes after maximum aggregation: 73723
Unique aggregates announced to Internet: 54068
Total ASes present in the Internet Routing Table: 13375
Origin-only ASes present in the Internet Routing Table: 11580
Origin ASes announcing only one prefix: 5146
Transit ASes present in the Internet Routing Table: 1795
Transit-only ASes present in the Internet Routing Table: 49
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: 1180761336
Equivalent to 70 /8s, 96 /16s and 252 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46247
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18849
Total APNIC prefixes after maximum aggregation: 11132
Prefixes being announced from the APNIC address blocks: 17375
Unique aggregates announced from the APNIC address blocks: 10555
APNIC Region origin ASes present in the Internet Routing Table: 1569
APNIC Region origin ASes announcing only one prefix: 516
APNIC Region transit ASes present in the Internet Routing Table: 276
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 89449312
Equivalent to 5 /8s, 84 /16s and 227 /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: 48014
Prefixes being announced from the ARIN address blocks: 53687
Unique aggregates announced from the ARIN address blocks: 18030
ARIN Region origin ASes present in the Internet Routing Table: 7868
ARIN Region origin ASes announcing only one prefix: 2528
ARIN Region transit ASes present in the Internet Routing Table: 780
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 189641040
Equivalent to 11 /8s, 77 /16s and 177 /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: 19730
Total RIPE prefixes after maximum aggregation: 14577
Prefixes being announced from the RIPE address blocks: 16271
Unique aggregates announced from the RIPE address blocks: 9915
RIPE Region origin ASes present in the Internet Routing Table: 3892
RIPE Region origin ASes announcing only one prefix: 2102
RIPE Region transit ASes present in the Internet Routing Table: 724
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 115687200
Equivalent to 6 /8s, 229 /16s and 63 /24s
Percentage of available RIPE address space announced: 76.6
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 899 Telstra Pty Ltd
4538 557 1290 19 China Education and Research
703 411 359 326 UUNET Technologies, Inc.
2907 365 1849 342 SINET Japan
2764 358 358 329 connect.com.au pty ltd
7474 318 296 212 Optus Communications Pty Ltd
17557 296 20 103 Pakistan Telecom
4755 292 112 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 218 79 14 China Telecom (Group) - Beiji
9583 180 32 5 Satyam Infoway Ltd.,
17676 164 2546 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
702 908 2438 766 UUNET Technologies, Inc.
5515 647 785 188 Sonera Finland Autonomous Sys
3301 394 924 344 TeliaNet Sweden
3352 276 531 31 Ibernet, Internet Access Netw
3215 275 639 175 France Telecom / &Equant
3320 263 1962 202 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
719 189 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
3303 140 548 139 Swisscom Ltd
8708 140 23 136 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
5511 113 192 90 France Telecom
3246 112 317 107 Song Networks / Clinet
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 1841 9193 1384 UUNET Technologies, Inc.
7018 1295 7386 942 AT&T
3908 918 1659 503 Supernet, Inc.
1239 820 3260 643 Sprint
852 752 1175 450 Telus Advanced Communications
1 701 8077 450 GENUITY
7843 641 360 239 Adelphia Corp.
4323 627 439 258 Time Warner Communications, I
7132 583 659 133 Southwestern Bell Internet Se
209 540 2011 352 Qwest
7046 536 889 340 UUNET Technologies, Inc.
690 516 74 328 Merit Network
7066 485 203 254 Virginia Polytechnic Institut
7029 463 165 56 Alltel Information Services,
3549 437 831 315 Global Crossing
2914 405 2083 382 Verio, Inc.
2149 393 177 293 Performance Systems, Inc.
15290 378 297 193 AT&T Canada IES
6197 370 547 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 557 538 China Education and Research
5515 647 459 Sonera Finland Autonomous Sys
7132 583 450 Southwestern Bell Internet Se
3908 918 415 Supernet, Inc.
7029 463 407 Alltel Information Services,
7843 641 402 Adelphia Corp.
4323 627 369 Time Warner Communications, I
1221 1256 357 Telstra Pty Ltd
7018 1295 353 AT&T
6197 370 334 BellSouth Network Solutions,
852 752 302 Telus Advanced Communications
4151 288 272 USDA
6347 345 268 SAVVIS Communications Corpora
1 701 251 GENUITY
4355 299 247 EarthLink, Inc.
3352 276 245 Ibernet, Internet Access Netw
7066 485 231 Virginia Polytechnic Institut
18566 230 226 Covad Communications
4755 292 215 Videsh Sanchar Nigam Ltd. Aut
7303 278 215 Telecom Argentina Stet-France
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 /8:19 /9:6 /10:7 /11:12 /12:36
/13:87 /14:235 /15:415 /16:7270 /17:1456 /18:2655
/19:7693 /20:7434 /21:5222 /22:7951 /23:9718 /24:63336
/25:201 /26:180 /27:86 /28:68 /29:49 /30:73
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 552 908 UUNET Technologies, Inc.
701 510 1841 UUNET Technologies, Inc.
3908 504 918 Supernet, Inc.
690 458 516 Merit Network
7843 446 641 Adelphia Corp.
5515 407 647 Sonera Finland Autonomous Sys
7066 388 485 Virginia Polytechnic Institut
7029 366 463 Alltel Information Services,
7018 352 1295 AT&T
6197 256 370 BellSouth Network Solutions,
6198 238 310 BellSouth Network Solutions,
3301 232 394 TeliaNet Sweden
18566 226 230 Covad Communications
209 213 540 Qwest
1239 213 820 Sprint
3215 208 275 France Telecom / &Equant
1580 205 218 HQ, 5th Signal Command
3352 201 276 Ibernet, Internet Access Netw
7046 198 536 UUNET Technologies, Inc.
3320 196 263 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:499 13:10 15:2 17:6 20:3
24:750 25:1 32:41 38:9 40:6 44:1
57:13 61:296 62:228 63:1871 64:1193 65:1382
66:994 67:91 68:65 80:254 81:34 128:65
129:129 130:22 131:95 132:11 133:2 134:125
135:8 136:243 137:95 138:152 139:70 140:166
141:124 142:79 143:43 144:146 145:14 146:187
147:139 148:241 149:83 150:41 151:67 152:266
153:36 154:14 155:113 156:70 157:127 158:71
159:136 160:18 161:71 162:213 163:94 164:266
165:133 166:219 167:175 168:294 169:60 170:241
171:3 192:5520 193:2431 194:2169 195:915 196:410
198:3647 199:3190 200:2623 202:3312 203:4733 204:3248
205:2172 206:2673 207:2521 208:2627 209:2666 210:602
211:231 212:919 213:659 214:9 215:19 216:2820
217:473 218:28
End of report
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