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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 30 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114726
Prefixes after maximum aggregation: 74331
Unique aggregates announced to Internet: 53856
Total ASes present in the Internet Routing Table: 13612
Origin-only ASes present in the Internet Routing Table: 11774
Origin ASes announcing only one prefix: 5266
Transit ASes present in the Internet Routing Table: 1838
Transit-only ASes present in the Internet Routing Table: 59
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 21
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 34
Number of addresses announced to Internet: 1189278372
Equivalent to 70 /8s, 226 /16s and 242 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 46842
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18751
Total APNIC prefixes after maximum aggregation: 11238
Prefixes being announced from the APNIC address blocks: 17301
Unique aggregates announced from the APNIC address blocks: 10658
APNIC Region origin ASes present in the Internet Routing Table: 1586
APNIC Region origin ASes announcing only one prefix: 527
APNIC Region transit ASes present in the Internet Routing Table: 278
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 93700832
Equivalent to 5 /8s, 149 /16s and 194 /24s
Percentage of available APNIC address space announced: 61.6
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: 76477
Total ARIN prefixes after maximum aggregation: 48360
Prefixes being announced from the ARIN address blocks: 54412
Unique aggregates announced from the ARIN address blocks: 16966
ARIN Region origin ASes present in the Internet Routing Table: 8001
ARIN Region origin ASes announcing only one prefix: 2597
ARIN Region transit ASes present in the Internet Routing Table: 804
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 195874288
Equivalent to 11 /8s, 172 /16s and 205 /24s
Percentage of available ARIN address space announced: 68.7
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, 68/7, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19498
Total RIPE prefixes after maximum aggregation: 14733
Prefixes being announced from the RIPE address blocks: 16168
Unique aggregates announced from the RIPE address blocks: 10579
RIPE Region origin ASes present in the Internet Routing Table: 3966
RIPE Region origin ASes announcing only one prefix: 2142
RIPE Region transit ASes present in the Internet Routing Table: 738
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 113713408
Equivalent to 6 /8s, 199 /16s and 33 /24s
Percentage of available RIPE address space announced: 75.3
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 1199 1185 880 Telstra Pty Ltd
4538 580 1330 18 China Education and Research
703 397 375 310 UUNET
2907 361 1816 340 SINET Japan
2764 357 357 328 connect.com.au pty ltd
7474 317 292 213 Optus Communications Pty Ltd
4134 302 2222 96 Data Communications Bureau
4755 288 143 75 Videsh Sanchar Nigam Ltd. Aut
17557 274 20 105 Pakistan Telecom
4766 250 1507 157 Korea Internet Exchange for "
4814 228 79 14 China Telecom (Group)
17676 198 3090 36 XTAGE CORPORATION
9443 177 57 65 Primus Telecommunications
9583 172 32 5 Satyam Infoway Ltd.,
7539 146 205 140 TANet2, sponsored by NSC, TAI
9768 145 385 74 Korea Telecom
4515 140 102 81 Star Internet Services Ltd.
7657 129 22 89 The Internet Group Limited
9800 121 187 23 CHINA UNICOM
4739 116 56 107 Commerical Internet eXchange
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 887 2428 743 UUNET - Commercial IP service
3301 393 907 341 TeliaNet Sweden
5515 319 783 179 Sonera Solution Autonomous Sy
3215 291 641 180 France Telecom Transpac
3320 247 1964 213 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5400 213 85 101 BT Ignite European Backbone
1257 209 444 204 SWIPnet Swedish IP Network
719 191 306 130 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 147 41 143 Romania Data Systems S.A.
3303 143 546 142 Swisscom Ltd
2856 126 786 116 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
3246 120 372 113 Song Networks
5511 110 192 88 France Telecom
3233 108 10 9 RNC - Romanian Natioanal R&D
3269 106 658 63 TELECOM ITALIA
2874 102 85 39 Global One Services AB
8220 100 166 96 COLT Internet - International
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1771 9125 1362 UUNET Technologies, Inc.
7018 1290 7197 922 AT&T
3908 1040 1649 497 Supernet, Inc.
1239 841 3225 651 Sprint
852 730 1175 452 Telus Advanced Communications
1 665 8039 431 GENUITY
7843 655 371 274 Adelphia Corp.
7046 603 882 311 UUNET Technologies, Inc.
7132 601 664 143 Southwestern Bell Internet Se
4323 562 435 176 Time Warner Communications, I
209 521 2075 346 Qwest
690 519 75 326 Merit Network
7066 489 203 256 Virginia Polytechnic Institut
2548 457 1129 272 Business Internet, Inc.
3549 415 725 301 Global Crossing
15290 364 246 180 AT&T Canada IES
6197 363 254 182 BellSouth Network Solutions,
2914 356 2041 356 Verio, Inc.
4355 354 286 86 EarthLink, Inc.
6347 348 370 76 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 580 562 China Education and Research
3908 1040 543 Supernet, Inc.
7132 601 458 Southwestern Bell Internet Se
4323 562 386 Time Warner Communications, I
7843 655 381 Adelphia Corp.
7018 1290 368 AT&T
1221 1199 319 Telstra Pty Ltd
7046 603 292 UUNET Technologies, Inc.
4151 305 289 USDA
852 730 278 Telus Advanced Communications
6347 348 272 SAVVIS Communications Corpora
4355 354 268 EarthLink, Inc.
18566 264 260 Covad Communications
376 343 237 Reseau Interordinateurs Scien
1 665 234 GENUITY
7066 489 233 Virginia Polytechnic Institut
4814 228 214 China Telecom (Group)
4755 288 213 Videsh Sanchar Nigam Ltd. Aut
4134 302 206 Data Communications Bureau
1580 209 198 ANOSCEUR
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
23174 UNALLOCATED 12.160.205.0/24 7018 AT&T
26326 UNALLOCATED 63.226.42.0/24 3908 Supernet, Inc.
26338 UNALLOCATED 65.200.70.0/24 701 UUNET Technologies,
23466 UNALLOCATED 65.222.163.0/24 209 Qwest
26149 UNALLOCATED 66.150.188.0/23 10912 InterNAP Network Ser
26346 UNALLOCATED 66.250.176.0/21 16631 Cogent Communication
22775 UNALLOCATED 198.81.96.0/20 16631 Cogent Communication
22775 UNALLOCATED 198.81.112.0/20 16631 Cogent Communication
26131 UNALLOCATED 198.212.98.0/24 3599 Berbee Information N
26104 UNALLOCATED 200.142.160.0/20 4230 Embratel
25824 UNALLOCATED 204.76.114.0/24 7018 AT&T
22076 UNALLOCATED 204.126.80.0/23 5738 SoVerNet, Inc.
26303 UNALLOCATED 204.196.81.0/27 13504 St. Of LA./Office Of
26303 UNALLOCATED 204.196.81.32/27 13504 St. Of LA./Office Of
26303 UNALLOCATED 204.196.81.64/27 13504 St. Of LA./Office Of
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
26299 UNALLOCATED 207.113.106.0/24 5696 WINSTAR
26287 UNALLOCATED 207.113.108.0/24 5696 WINSTAR
26299 UNALLOCATED 207.113.110.0/24 5696 WINSTAR
22076 UNALLOCATED 207.136.220.0/24 5738 SoVerNet, Inc.
23135 UNALLOCATED 208.49.130.0/24 3549 Global Crossing
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
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
192.44.0.0/19 702 UUNET - Commercial IP service
192.58.92.0/24 19548 Adelphia Business Solutions
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 Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.91.198.0/24 2568 CTS Network Services
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
192.136.136.0/24 7046 UUNET Technologies, Inc.
192.136.136.0/22 568 DISO-UNRRA
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
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
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 /8:20 /9:6 /10:7 /11:12 /12:37
/13:86 /14:236 /15:425 /16:7307 /17:1483 /18:2669
/19:7812 /20:7608 /21:5313 /22:8056 /23:9720 /24:63094
/25:220 /26:233 /27:135 /28:81 /29:49 /30:80
/31:1 /32:36
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 612 1040 Supernet, Inc.
702 541 887 UUNET - Commercial IP service
701 498 1771 UUNET Technologies, Inc.
690 465 519 Merit Network
7843 455 655 Adelphia Corp.
7066 388 489 Virginia Polytechnic Institut
7018 382 1290 AT&T
7046 289 603 UUNET Technologies, Inc.
6197 264 363 BellSouth Network Solutions,
18566 260 264 Covad Communications
6198 240 316 BellSouth Network Solutions,
3301 234 393 TeliaNet Sweden
1239 228 841 Sprint
3215 223 291 France Telecom Transpac
4355 203 354 EarthLink, Inc.
1580 197 209 ANOSCEUR
209 195 521 Qwest
4323 192 562 Time Warner Communications, I
11492 188 192 Cable One
5400 187 213 BT Ignite European Backbone
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:1 12:549 13:10 15:2 17:6
20:4 24:818 25:1 32:41 38:9 40:6
44:1 55:1 57:14 61:318 62:240 63:1843
64:1230 65:1475 66:1070 67:98 68:94 80:265
81:45 128:65 129:158 130:21 131:55 132:11
133:2 134:124 135:9 136:501 137:95 138:148
139:69 140:186 141:73 142:67 143:50 144:138
145:17 146:258 147:147 148:240 149:81 150:41
151:59 152:265 153:36 154:11 155:107 156:71
157:114 158:65 159:140 160:20 161:73 162:123
163:89 164:263 165:128 166:104 167:266 168:121
169:61 170:192 171:3 192:5475 193:2377 194:2085
195:821 196:417 198:3682 199:3129 200:2644 202:3200
203:4715 204:3268 205:2144 206:2497 207:2505 208:2580
209:2688 210:601 211:240 212:878 213:708 214:8
215:19 216:2863 217:498 218:42 219:1
End of report
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