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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 Mon 24 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116892
Prefixes after maximum aggregation: 75486
Unique aggregates announced to Internet: 54488
Total ASes present in the Internet Routing Table: 13269
Origin-only ASes present in the Internet Routing Table: 11499
Origin ASes announcing only one prefix: 5071
Transit ASes present in the Internet Routing Table: 1770
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: 19
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: 1191044572
Equivalent to 70 /8s, 253 /16s and 229 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 48939
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18485
Total APNIC prefixes after maximum aggregation: 11062
Prefixes being announced from the APNIC address blocks: 16992
Unique aggregates announced from the APNIC address blocks: 10454
APNIC Region origin ASes present in the Internet Routing Table: 1548
APNIC Region origin ASes announcing only one prefix: 504
APNIC Region transit ASes present in the Internet Routing Table: 271
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 87374944
Equivalent to 5 /8s, 53 /16s and 60 /24s
Percentage of available APNIC address space announced: 64.6
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 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 79209
Total ARIN prefixes after maximum aggregation: 49882
Prefixes being announced from the ARIN address blocks: 54763
Unique aggregates announced from the ARIN address blocks: 17928
ARIN Region origin ASes present in the Internet Routing Table: 7813
ARIN Region origin ASes announcing only one prefix: 2497
ARIN Region transit ASes present in the Internet Routing Table: 772
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 188929108
Equivalent to 11 /8s, 66 /16s and 212 /24s
Percentage of available ARIN address space announced: 70.4
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: 19197
Total RIPE prefixes after maximum aggregation: 14542
Prefixes being announced from the RIPE address blocks: 15888
Unique aggregates announced from the RIPE address blocks: 10540
RIPE Region origin ASes present in the Internet Routing Table: 3859
RIPE Region origin ASes announcing only one prefix: 2070
RIPE Region transit ASes present in the Internet Routing Table: 708
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 111758624
Equivalent to 6 /8s, 169 /16s and 77 /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 1259 1222 906 Telstra Pty Ltd
4538 442 1194 16 China Education and Research
703 418 357 334 UUNET Technologies, Inc.
2907 384 1875 357 SINET Japan
2764 366 358 335 connect.com.au pty ltd
7474 311 292 208 Optus Communications Pty Ltd
17557 299 20 115 Pakistan Telecom
4755 293 116 82 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 150 2322 23 XTAGE CORPORATION
9768 146 386 75 Korea Telecom
7657 139 22 87 The Internet Group Limited
9800 116 191 24 CHINA UNICOM
4780 112 186 39 Digital United Inc.
4739 111 56 102 Commerical Internet eXchange
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1019 2601 843 UUNET Technologies, Inc.
3301 402 925 351 TeliaNet Sweden
3352 278 537 27 Ibernet, Internet Access Netw
3215 263 598 162 France Telecom / &Equant
3320 234 1962 187 Deutsche Telekom AG
680 233 2149 230 DFN-IP service G-WiN
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
12302 127 18 34 MobiFon S.A.
2856 125 786 115 BTnet UK Regional network
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 2866 349 2318 Performance Systems, Inc.
701 2014 9258 1402 UUNET Technologies, Inc.
7018 1287 7437 930 AT&T
3908 912 1642 497 Supernet, Inc.
1239 828 3363 653 Sprint
705 797 188 271 UUNET Technologies, Inc.
1 701 8147 451 GENUITY
852 673 1173 450 Telus Advanced Communications
4323 631 438 259 Time Warner Communications, I
209 610 1959 342 Qwest
7843 600 375 60 Adelphia Corp.
7046 597 860 384 UUNET Technologies, Inc.
690 585 80 371 Merit Network
7132 578 659 134 Southwestern Bell Internet Se
174 573 4608 37 PSINet Inc.
7066 476 202 249 Virginia Polytechnic Institut
3549 457 841 321 Global Crossing
2914 394 2101 386 Verio, Inc.
15290 386 299 197 AT&T Canada IES
6197 346 247 170 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
701 2014 612 UUNET Technologies, Inc.
7843 600 540 Adelphia Corp.
174 573 536 PSINet Inc.
705 797 526 UUNET Technologies, Inc.
7132 578 444 Southwestern Bell Internet Se
4538 442 426 China Education and Research
3908 912 415 Supernet, Inc.
4323 631 372 Time Warner Communications, I
7018 1287 357 AT&T
1221 1259 353 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 288 272 USDA
209 610 268 Qwest
6347 341 263 SAVVIS Communications Corpora
3352 278 251 Ibernet, Internet Access Netw
1 701 250 GENUITY
4355 302 249 EarthLink, Inc.
7029 263 248 Alltel Information Services,
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 /8:19 /9:6 /10:7 /11:12 /12:36
/13:90 /14:236 /15:421 /16:7256 /17:1463 /18:2632
/19:7672 /20:7279 /21:5098 /22:7857 /23:9561 /24:66558
/25:191 /26:170 /27:81 /28:86 /29:45 /30:91
/31:0 /32:25
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
2149 2328 2866 Performance Systems, Inc.
702 627 1019 UUNET Technologies, Inc.
705 594 797 UUNET Technologies, Inc.
701 573 2014 UUNET Technologies, Inc.
3908 499 912 Supernet, Inc.
174 478 573 PSINet Inc.
690 463 585 Merit Network
7843 384 600 Adelphia Corp.
7066 381 476 Virginia Polytechnic Institut
7018 344 1287 AT&T
209 275 610 Qwest
6197 248 346 BellSouth Network Solutions,
7029 248 263 Alltel Information Services,
11371 245 292 Rhythms NetConnections
7046 241 597 UUNET Technologies, Inc.
3301 238 402 TeliaNet Sweden
6198 234 321 BellSouth Network Solutions,
18566 221 225 Covad Communications
6517 217 239 Yipes Communications, Inc.
1239 216 828 Sprint
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:511 13:10 15:2 17:6
20:2 24:793 25:1 32:41 38:2648 40:6
44:1 57:13 61:266 62:204 63:1917 64:1239
65:1662 66:996 67:86 68:177 80:245 81:30
128:60 129:136 130:22 131:48 132:11 133:3
134:120 135:8 136:243 137:94 138:148 139:60
140:142 141:121 142:83 143:39 144:152 145:15
146:171 147:138 148:218 149:91 150:40 151:67
152:262 153:33 154:19 155:101 156:77 157:127
158:69 159:129 160:18 161:67 162:154 163:102
164:280 165:133 166:228 167:172 168:130 169:59
170:357 171:3 192:5484 193:2371 194:2076 195:954
196:395 198:3685 199:3236 200:2547 202:3246 203:4671
204:3435 205:2192 206:2766 207:2649 208:2673 209:2679
210:586 211:227 212:894 213:636 214:9 215:19
216:2982 217:456 218:39 219:41
End of report
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