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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 12 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 112294
Prefixes after maximum aggregation: 73258
Unique aggregates announced to Internet: 52998
Total ASes present in the Internet Routing Table: 13046
Origin-only ASes present in the Internet Routing Table: 11317
Origin ASes announcing only one prefix: 4956
Transit ASes present in the Internet Routing Table: 1729
Transit-only ASes present in the Internet Routing Table: 48
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 43
Number of addresses announced to Internet: 1177190460
Equivalent to 70 /8s, 42 /16s and 128 /24s
Percentage of available address space announced: 31.8
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45307
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18130
Total APNIC prefixes after maximum aggregation: 10942
Prefixes being announced from the APNIC address blocks: 16625
Unique aggregates announced from the APNIC address blocks: 10329
APNIC Region origin ASes present in the Internet Routing Table: 1501
APNIC Region origin ASes announcing only one prefix: 491
APNIC Region transit ASes present in the Internet Routing Table: 267
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 84549440
Equivalent to 5 /8s, 10 /16s and 31 /24s
Percentage of available APNIC address space announced: 62.5
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: 75337
Total ARIN prefixes after maximum aggregation: 47978
Prefixes being announced from the ARIN address blocks: 53545
Unique aggregates announced from the ARIN address blocks: 16566
ARIN Region origin ASes present in the Internet Routing Table: 7710
ARIN Region origin ASes announcing only one prefix: 2436
ARIN Region transit ASes present in the Internet Routing Table: 751
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 195976132
Equivalent to 11 /8s, 174 /16s and 91 /24s
Percentage of available ARIN address space announced: 73.0
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: 18827
Total RIPE prefixes after maximum aggregation: 14338
Prefixes being announced from the RIPE address blocks: 15487
Unique aggregates announced from the RIPE address blocks: 10334
RIPE Region origin ASes present in the Internet Routing Table: 3787
RIPE Region origin ASes announcing only one prefix: 2029
RIPE Region transit ASes present in the Internet Routing Table: 695
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 109138480
Equivalent to 6 /8s, 129 /16s and 82 /24s
Percentage of available RIPE address space announced: 72.3
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 1271 1210 937 Telstra Pty Ltd
4538 477 1194 17 China Education and Research
2907 433 1877 370 SINET Japan
703 406 337 325 UUNET Technologies, Inc.
2764 395 360 362 connect.com.au pty ltd
7474 305 291 207 Optus Communications Pty Ltd
4134 280 2068 95 Data Communications Bureau
17557 279 19 111 Pakistan Telecom
9443 275 44 63 Primus Telecommunications
4755 264 109 75 Videsh Sanchar Nigam Ltd. Aut
4766 222 1518 158 Korea Internet Exchange for "
9583 169 32 5 Satyam Infoway Ltd.,
4804 167 92 66 Microplex PTY LTD
7539 157 235 151 TANet2, sponsored by NSC, TAI
9768 146 386 80 Korea Telecom
7657 129 22 89 The Internet Group Limited
17676 123 1953 10 XTAGE CORPORATION
4713 115 993 106 NTT Communications Corporatio
4814 114 64 6 China Telecom (Group) - Beiji
9800 114 186 22 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1035 2615 850 UUNET Technologies, Inc.
3301 392 908 344 TeliaNet Sweden
5515 276 761 173 Sonera Finland Autonomous Sys
3215 264 597 164 France Telecom / &Equant
680 231 2149 230 DFN-IP service G-WiN
3320 230 1947 177 Deutsche Telekom AG
1257 209 462 206 SWIPnet Swedish IP Network
5400 199 83 94 Concert European Core Network
786 182 1874 182 The JANET IP Service
719 165 289 119 LANLINK autonomous system
8708 141 22 136 Romania Data Systems S.A.
12302 129 9 48 MobiFon S.A.
2856 126 786 116 BTnet UK Regional network
8297 125 54 69 Teleglobe Autonomous System i
3303 115 546 114 Swisscom Ltd
3269 114 694 71 TELECOM ITALIA
5511 104 192 87 France Telecom
517 101 226 97 KPNQwest Germany GmbH
2830 98 227 74 UUNET Dual-Homed customers
2874 97 84 37 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2078 8379 1464 UUNET Technologies, Inc.
7018 1291 7558 940 AT&T
3908 864 1642 484 Supernet, Inc.
1239 852 3396 675 Sprint
1 807 8170 451 BBN Planet
7046 717 874 498 UUNET Technologies, Inc.
852 662 1132 422 Telus Advanced Communications
4323 632 436 256 Time Warner Communications, I
209 580 1935 321 Qwest
7132 571 605 139 Southwestern Bell Internet Se
690 539 75 348 Merit Network
3549 517 856 321 Global Crossing
7843 477 356 52 Adelphia Corp.
7066 476 202 248 Virginia Polytechnic Institut
2914 409 2143 396 Verio, Inc.
705 374 100 267 UUNET Technologies, Inc.
2149 344 191 286 Performance Systems, Inc.
3741 344 731 236 The Internet Solution
4293 342 84 265 Cable & Wireless USA
6197 340 245 164 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 477 460 China Education and Research
7132 571 432 Southwestern Bell Internet Se
7843 477 425 Adelphia Corp.
3908 864 380 Supernet, Inc.
4323 632 376 Time Warner Communications, I
1 807 356 BBN Planet
7018 1291 351 AT&T
1221 1271 334 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 296 280 USDA
209 580 259 Qwest
6347 338 258 SAVVIS Communications Corpora
7029 260 245 Alltel Information Services,
852 662 240 Telus Advanced Communications
4355 271 233 EarthLink, Inc.
7066 476 228 Virginia Polytechnic Institut
7046 717 219 UUNET Technologies, Inc.
9443 275 212 Primus Telecommunications
6517 243 209 Yipes Communications, Inc.
1580 214 201 HQ, 5th Signal Command
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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 BBN Planet
153.147.0.0/16 3561 Cable & Wireless USA
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.31.126.0/23 1103 SURFnet BV
192.31.128.0/21 1103 SURFnet BV
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.
192.83.1.0/24 5515 Sonera Finland Autonomous Sys
192.83.2.0/24 5515 Sonera Finland Autonomous Sys
192.83.8.0/21 5515 Sonera Finland Autonomous Sys
192.83.14.0/24 5515 Sonera Finland Autonomous Sys
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.25.0/24 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 /8:20 /9:6 /10:7 /11:13 /12:32
/13:85 /14:231 /15:406 /16:7184 /17:1433 /18:2568
/19:7502 /20:7084 /21:5053 /22:7748 /23:9397 /24:62765
/25:217 /26:187 /27:81 /28:89 /29:50 /30:97
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 646 2078 UUNET Technologies, Inc.
702 644 1035 UUNET Technologies, Inc.
3908 453 864 Supernet, Inc.
690 447 539 Merit Network
7066 381 476 Virginia Polytechnic Institut
7046 355 717 UUNET Technologies, Inc.
7018 337 1291 AT&T
7843 279 477 Adelphia Corp.
209 268 580 Qwest
7029 245 260 Alltel Information Services,
11371 245 292 Rhythms NetConnections
6197 244 340 BellSouth Network Solutions,
1 243 807 BBN Planet
1239 240 852 Sprint
3301 235 392 TeliaNet Sweden
6198 230 312 BellSouth Network Solutions,
6517 221 243 Yipes Communications, Inc.
4293 220 342 Cable & Wireless USA
3549 216 517 Global Crossing
1580 202 214 HQ, 5th Signal Command
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:501 13:10 15:2 17:7
20:2 24:769 25:1 32:67 38:8 40:6
44:1 57:13 61:200 62:198 63:2016 64:1218
65:1330 66:923 67:70 68:10 80:240 81:21
128:59 129:138 130:23 131:47 132:13 133:3
134:120 135:9 136:317 137:93 138:150 139:53
140:184 141:120 142:82 143:38 144:148 145:12
146:175 147:136 148:167 149:93 150:41 151:60
152:288 153:33 154:3 155:99 156:74 157:125
158:69 159:127 160:18 161:64 162:148 163:100
164:272 165:121 166:228 167:170 168:125 169:55
170:306 171:2 192:5466 193:2329 194:2114 195:805
196:408 198:3757 199:3203 200:2467 202:3152 203:4548
204:3261 205:2181 206:2646 207:2683 208:2810 209:2702
210:651 211:237 212:868 213:621 214:9 215:18
216:3029 217:456 218:19
End of report
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