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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 Sat 25 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 112449
Prefixes after maximum aggregation: 73187
Unique aggregates announced to Internet: 52716
Total ASes present in the Internet Routing Table: 13135
Origin-only ASes present in the Internet Routing Table: 11377
Origin ASes announcing only one prefix: 5006
Transit ASes present in the Internet Routing Table: 1758
Transit-only ASes present in the Internet Routing Table: 54
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: 4
Non-routable prefixes present in the Routing Table: 1
Prefixes being announced from the IANA Reserved Address blocks: 40
Number of addresses announced to Internet: 1180739036
Equivalent to 70 /8s, 96 /16s and 165 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45273
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18163
Total APNIC prefixes after maximum aggregation: 11006
Prefixes being announced from the APNIC address blocks: 16634
Unique aggregates announced from the APNIC address blocks: 10349
APNIC Region origin ASes present in the Internet Routing Table: 1516
APNIC Region origin ASes announcing only one prefix: 500
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: 84992992
Equivalent to 5 /8s, 16 /16s and 227 /24s
Percentage of available APNIC address space announced: 62.8
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 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75367
Total ARIN prefixes after maximum aggregation: 47764
Prefixes being announced from the ARIN address blocks: 53645
Unique aggregates announced from the ARIN address blocks: 16753
ARIN Region origin ASes present in the Internet Routing Table: 7748
ARIN Region origin ASes announcing only one prefix: 2458
ARIN Region transit ASes present in the Internet Routing Table: 763
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 192717508
Equivalent to 11 /8s, 124 /16s and 162 /24s
Percentage of available ARIN address space announced: 71.8
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: 18918
Total RIPE prefixes after maximum aggregation: 14417
Prefixes being announced from the RIPE address blocks: 15574
Unique aggregates announced from the RIPE address blocks: 9812
RIPE Region origin ASes present in the Internet Routing Table: 3818
RIPE Region origin ASes announcing only one prefix: 2048
RIPE Region transit ASes present in the Internet Routing Table: 706
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 115041328
Equivalent to 6 /8s, 219 /16s and 100 /24s
Percentage of available RIPE address space announced: 76.2
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 1269 1223 912 Telstra Pty Ltd
4538 480 1194 17 China Education and Research
2907 427 1861 368 SINET Japan
703 405 338 326 UUNET Technologies, Inc.
2764 397 360 362 connect.com.au pty ltd
7474 307 291 205 Optus Communications Pty Ltd
17557 281 19 110 Pakistan Telecom
4134 276 2076 93 Data Communications Bureau
9443 266 44 63 Primus Telecommunications
4755 248 109 75 Videsh Sanchar Nigam Ltd. Aut
4766 227 1517 158 Korea Internet Exchange for "
9583 180 32 5 Satyam Infoway Ltd.,
4814 160 68 16 China Telecom (Group) - Beiji
7539 153 218 147 TANet2, sponsored by NSC, TAI
9768 146 386 76 Korea Telecom
17676 129 1986 12 XTAGE CORPORATION
7657 128 22 85 The Internet Group Limited
4780 117 186 39 Digital United Inc.
4713 115 1009 106 NTT Communications Corporatio
9800 114 186 22 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1021 2610 847 UUNET Technologies, Inc.
3301 394 908 346 TeliaNet Sweden
3215 266 599 165 France Telecom / &Equant
5515 263 783 175 Sonera Finland Autonomous Sys
3320 234 1948 180 Deutsche Telekom AG
680 231 2149 230 DFN-IP service G-WiN
1257 208 430 205 SWIPnet Swedish IP Network
5400 200 83 95 Concert European Core Network
786 182 1874 182 The JANET IP Service
719 178 290 124 LANLINK autonomous system
8708 148 23 140 Romania Data Systems S.A.
12302 133 9 46 MobiFon S.A.
2856 126 789 116 BTnet UK Regional network
3303 116 546 115 Swisscom Ltd
8297 116 57 65 Teleglobe Autonomous System i
3269 115 694 71 TELECOM ITALIA
5511 105 191 87 France Telecom
517 100 226 96 KPNQwest Germany GmbH
2830 100 252 76 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 1998 8914 1431 UUNET Technologies, Inc.
7018 1282 7546 931 AT&T
3908 896 1640 485 Supernet, Inc.
1239 827 3442 658 Sprint
1 818 8168 454 BBN Planet
852 741 1176 448 Telus Advanced Communications
7046 680 937 460 UUNET Technologies, Inc.
4323 632 436 257 Time Warner Communications, I
690 583 79 383 Merit Network
209 582 1970 322 Qwest
7132 569 606 137 Southwestern Bell Internet Se
3549 518 854 323 Global Crossing
7843 510 363 61 Adelphia Corp.
7066 475 202 248 Virginia Polytechnic Institut
2914 398 2108 389 Verio, Inc.
15290 392 300 204 AT&T Canada IES
705 370 99 262 UUNET Technologies, Inc.
3741 345 731 236 The Internet Solution
2149 344 191 285 Performance Systems, Inc.
577 342 458 216 Bell Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 480 463 China Education and Research
7843 510 449 Adelphia Corp.
7132 569 432 Southwestern Bell Internet Se
3908 896 411 Supernet, Inc.
4323 632 375 Time Warner Communications, I
1 818 364 BBN Planet
1221 1269 357 Telstra Pty Ltd
7018 1282 351 AT&T
852 741 293 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 288 272 USDA
209 582 260 Qwest
6347 337 258 SAVVIS Communications Corpora
7029 262 247 Alltel Information Services,
4355 269 231 EarthLink, Inc.
7066 475 227 Virginia Polytechnic Institut
7046 680 220 UUNET Technologies, Inc.
18566 219 215 Covad Communications
6198 314 209 BellSouth Network Solutions,
6517 242 206 Yipes Communications, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
55555 RESERVED 136.162.254.0/24 7046 UUNET Technologies,
25780 UNALLOCATED 198.153.131.0/24 1 BBN Planet
25780 UNALLOCATED 198.153.231.0/24 1 BBN Planet
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.0.2.0/24 1103 SURFnet BV
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
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.26.98.0/24 1239 Sprint
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.
192.83.14.0/24 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 /12:34
/13:85 /14:231 /15:409 /16:7202 /17:1430 /18:2588
/19:7582 /20:7160 /21:5087 /22:7786 /23:9428 /24:62622
/25:219 /26:186 /27:82 /28:87 /29:47 /30:91
/31:0 /32:47
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 627 1021 UUNET Technologies, Inc.
701 556 1998 UUNET Technologies, Inc.
3908 485 896 Supernet, Inc.
690 455 583 Merit Network
7066 380 475 Virginia Polytechnic Institut
7018 334 1282 AT&T
7046 306 680 UUNET Technologies, Inc.
7843 304 510 Adelphia Corp.
209 268 582 Qwest
1 257 818 BBN Planet
7029 247 262 Alltel Information Services,
6197 245 341 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 237 394 TeliaNet Sweden
6198 231 314 BellSouth Network Solutions,
6517 220 242 Yipes Communications, Inc.
3549 216 518 Global Crossing
18566 215 219 Covad Communications
1239 210 827 Sprint
1580 204 216 HQ, 5th Signal Command
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:514 13:10 15:2 17:6
20:2 24:777 25:1 32:40 38:8 40:6
44:1 57:13 61:226 62:200 63:1959 64:1212
65:1320 66:939 67:79 68:15 80:235 81:25
128:63 129:134 130:23 131:47 132:13 133:3
134:118 135:9 136:253 137:91 138:150 139:57
140:174 141:119 142:78 143:38 144:148 145:11
146:180 147:136 148:172 149:92 150:42 151:67
152:269 153:33 154:14 155:105 156:75 157:127
158:69 159:127 160:18 161:63 162:148 163:101
164:271 165:140 166:229 167:173 168:119 169:58
170:352 171:2 192:5497 193:2334 194:2107 195:807
196:407 198:3705 199:3237 200:2578 202:3165 203:4566
204:3251 205:2150 206:2568 207:2682 208:2656 209:2770
210:601 211:224 212:877 213:617 214:9 215:18
216:3001 217:466 218:24
End of report
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