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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 21 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116795
Prefixes after maximum aggregation: 75465
Unique aggregates announced to Internet: 52654
Total ASes present in the Internet Routing Table: 13263
Origin-only ASes present in the Internet Routing Table: 11500
Origin ASes announcing only one prefix: 5077
Transit ASes present in the Internet Routing Table: 1763
Transit-only ASes present in the Internet Routing Table: 50
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: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 35
Number of addresses announced to Internet: 1199453404
Equivalent to 71 /8s, 126 /16s and 52 /24s
Percentage of available address space announced: 32.4
Percentage of allocated address space announced: 60.3
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 48941
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18481
Total APNIC prefixes after maximum aggregation: 11040
Prefixes being announced from the APNIC address blocks: 16976
Unique aggregates announced from the APNIC address blocks: 9889
APNIC Region origin ASes present in the Internet Routing Table: 1545
APNIC Region origin ASes announcing only one prefix: 508
APNIC Region transit ASes present in the Internet Routing Table: 273
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 90259040
Equivalent to 5 /8s, 97 /16s and 62 /24s
Percentage of available APNIC address space announced: 66.7
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 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 79082
Total ARIN prefixes after maximum aggregation: 49869
Prefixes being announced from the ARIN address blocks: 54607
Unique aggregates announced from the ARIN address blocks: 16632
ARIN Region origin ASes present in the Internet Routing Table: 7813
ARIN Region origin ASes announcing only one prefix: 2504
ARIN Region transit ASes present in the Internet Routing Table: 764
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 194350932
Equivalent to 11 /8s, 149 /16s and 143 /24s
Percentage of available ARIN address space announced: 72.4
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: 19231
Total RIPE prefixes after maximum aggregation: 14556
Prefixes being announced from the RIPE address blocks: 15933
Unique aggregates announced from the RIPE address blocks: 10569
RIPE Region origin ASes present in the Internet Routing Table: 3856
RIPE Region origin ASes announcing only one prefix: 2065
RIPE Region transit ASes present in the Internet Routing Table: 710
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 111789856
Equivalent to 6 /8s, 169 /16s and 199 /24s
Percentage of available RIPE address space announced: 74.0
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 1258 1222 905 Telstra Pty Ltd
4538 420 1194 16 China Education and Research
703 416 356 333 UUNET Technologies, Inc.
2907 384 1875 357 SINET Japan
2764 368 358 336 connect.com.au pty ltd
17557 313 21 117 Pakistan Telecom
7474 310 292 208 Optus Communications Pty Ltd
4755 297 115 80 Videsh Sanchar Nigam Ltd. Aut
4134 290 2132 102 Data Communications Bureau
9443 251 45 67 Primus Telecommunications
4766 216 1504 154 Korea Internet Exchange for "
4814 196 79 14 China Telecom (Group) - Beiji
4713 183 1009 106 NTT Communications Corporatio
9583 175 32 5 Satyam Infoway Ltd.,
17676 149 2306 22 XTAGE CORPORATION
9768 146 386 75 Korea Telecom
7657 139 22 87 The Internet Group Limited
9800 116 191 24 CHINA UNICOM
4621 112 11 61 UNINET-TH
4780 112 186 39 Digital United Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1020 2619 844 UUNET Technologies, Inc.
3301 402 925 351 TeliaNet Sweden
3352 278 537 27 Ibernet, Internet Access Netw
3215 264 598 163 France Telecom / &Equant
680 233 2149 230 DFN-IP service G-WiN
3320 233 1962 186 Deutsche Telekom AG
5515 206 783 172 Sonera Finland Autonomous Sys
1257 204 430 201 SWIPnet Swedish IP Network
5400 203 83 94 Concert European Core Network
719 191 306 129 LANLINK autonomous system
786 178 1873 177 The JANET IP Service
8708 141 23 138 Romania Data Systems S.A.
3303 133 546 132 Swisscom Ltd
2856 124 785 114 BTnet UK Regional network
12302 124 10 31 MobiFon S.A.
3269 113 692 70 TELECOM ITALIA
8297 111 55 64 Teleglobe Autonomous System i
3246 108 300 103 Song Networks / Clinet
3233 102 6 56 RNC - Romanian Natioanal R&D
2874 98 85 38 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2149 2863 349 2319 Performance Systems, Inc.
701 2018 9243 1407 UUNET Technologies, Inc.
7018 1290 7453 934 AT&T
3908 912 1642 497 Supernet, Inc.
1239 826 3409 657 Sprint
705 804 188 278 UUNET Technologies, Inc.
1 701 8147 451 GENUITY
852 670 1172 448 Telus Advanced Communications
4323 630 436 258 Time Warner Communications, I
7843 613 375 60 Adelphia Corp.
209 610 1959 341 Qwest
7046 601 860 388 UUNET Technologies, Inc.
690 588 81 376 Merit Network
7132 577 659 134 Southwestern Bell Internet Se
174 545 4608 36 PSINet Inc.
7066 476 202 249 Virginia Polytechnic Institut
3549 459 857 323 Global Crossing
2914 394 2108 386 Verio, Inc.
15290 385 299 198 AT&T Canada IES
6197 347 247 170 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
701 2018 611 UUNET Technologies, Inc.
7843 613 553 Adelphia Corp.
705 804 526 UUNET Technologies, Inc.
174 545 509 PSINet Inc.
7132 577 443 Southwestern Bell Internet Se
3908 912 415 Supernet, Inc.
4538 420 404 China Education and Research
4323 630 372 Time Warner Communications, I
7018 1290 356 AT&T
1221 1258 353 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 288 272 USDA
209 610 269 Qwest
6347 338 260 SAVVIS Communications Corpora
3352 278 251 Ibernet, Internet Access Netw
1 701 250 GENUITY
7029 262 248 Alltel Information Services,
4355 300 247 EarthLink, Inc.
7066 476 227 Virginia Polytechnic Institut
4454 249 226 OIR Telecommunications, State
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
13136 UNALLOCATED 80.85.128.0/20 16243 Virtu Secure Webserv
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
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
192.26.98.0/24 1239 Sprint
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
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.135.248.0/23 109 Cisco Systems, Inc.
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
192.152.213.0/24 1239 Sprint
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 /8:21 /9:6 /10:7 /11:12 /12:36
/13:90 /14:236 /15:421 /16:7257 /17:1458 /18:2632
/19:7670 /20:7272 /21:5096 /22:7852 /23:9559 /24:66476
/25:194 /26:171 /27:83 /28:77 /29:48 /30:81
/31:1 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
2149 2328 2863 Performance Systems, Inc.
702 627 1020 UUNET Technologies, Inc.
705 598 804 UUNET Technologies, Inc.
701 575 2018 UUNET Technologies, Inc.
3908 500 912 Supernet, Inc.
690 466 588 Merit Network
174 453 545 PSINet Inc.
7843 397 613 Adelphia Corp.
7066 381 476 Virginia Polytechnic Institut
7018 345 1290 AT&T
209 276 610 Qwest
6197 249 347 BellSouth Network Solutions,
7029 248 262 Alltel Information Services,
11371 245 292 Rhythms NetConnections
7046 243 601 UUNET Technologies, Inc.
3301 238 402 TeliaNet Sweden
6198 232 319 BellSouth Network Solutions,
18566 221 225 Covad Communications
6517 215 237 Yipes Communications, Inc.
1239 210 826 Sprint
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:509 13:10 15:2 17:6
20:2 24:805 25:1 32:41 38:2626 40:6
44:1 57:13 61:266 62:205 63:1930 64:1231
65:1659 66:968 67:87 68:179 80:256 81:30
128:60 129:140 130:24 131:49 132:11 133:3
134:88 135:8 136:246 137:93 138:151 139:60
140:142 141:121 142:83 143:37 144:151 145:14
146:173 147:138 148:216 149:92 150:40 151:127
152:265 153:33 154:19 155:101 156:76 157:126
158:69 159:127 160:18 161:69 162:154 163:102
164:277 165:133 166:227 167:173 168:131 169:60
170:355 171:3 192:5492 193:2371 194:2084 195:962
196:395 198:3677 199:3235 200:2522 202:3268 203:4659
204:3425 205:2184 206:2741 207:2617 208:2670 209:2678
210:581 211:223 212:899 213:630 214:9 215:19
216:2971 217:461 218:40 219:41
End of report
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