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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 Wed 22 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 112243
Prefixes after maximum aggregation: 73068
Unique aggregates announced to Internet: 53316
Total ASes present in the Internet Routing Table: 13107
Origin-only ASes present in the Internet Routing Table: 11351
Origin ASes announcing only one prefix: 4990
Transit ASes present in the Internet Routing Table: 1756
Transit-only ASes present in the Internet Routing Table: 57
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: 3
Non-routable prefixes present in the Routing Table: 1
Prefixes being announced from the IANA Reserved Address blocks: 41
Number of addresses announced to Internet: 1175183964
Equivalent to 70 /8s, 11 /16s and 226 /24s
Percentage of available address space announced: 31.7
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45114
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18067
Total APNIC prefixes after maximum aggregation: 10969
Prefixes being announced from the APNIC address blocks: 16555
Unique aggregates announced from the APNIC address blocks: 10355
APNIC Region origin ASes present in the Internet Routing Table: 1513
APNIC Region origin ASes announcing only one prefix: 499
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: 17
Number of APNIC addresses announced to Internet: 84769120
Equivalent to 5 /8s, 13 /16s and 121 /24s
Percentage of available APNIC address space announced: 62.7
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: 75344
Total ARIN prefixes after maximum aggregation: 47734
Prefixes being announced from the ARIN address blocks: 53627
Unique aggregates announced from the ARIN address blocks: 16788
ARIN Region origin ASes present in the Internet Routing Table: 7737
ARIN Region origin ASes announcing only one prefix: 2450
ARIN Region transit ASes present in the Internet Routing Table: 758
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 192568772
Equivalent to 11 /8s, 122 /16s and 93 /24s
Percentage of available ARIN address space announced: 71.7
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, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 18832
Total RIPE prefixes after maximum aggregation: 14365
Prefixes being announced from the RIPE address blocks: 15489
Unique aggregates announced from the RIPE address blocks: 10388
RIPE Region origin ASes present in the Internet Routing Table: 3800
RIPE Region origin ASes announcing only one prefix: 2041
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: 15
Number of RIPE addresses announced to Internet: 109540400
Equivalent to 6 /8s, 135 /16s and 116 /24s
Percentage of available RIPE address space announced: 72.5
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 1223 912 Telstra Pty Ltd
4538 478 1194 17 China Education and Research
2907 428 1861 369 SINET Japan
703 402 336 323 UUNET Technologies, Inc.
2764 397 360 364 connect.com.au pty ltd
7474 308 291 206 Optus Communications Pty Ltd
4134 282 2076 96 Data Communications Bureau
17557 281 19 112 Pakistan Telecom
9443 266 44 63 Primus Telecommunications
4755 246 109 75 Videsh Sanchar Nigam Ltd. Aut
4766 222 1516 154 Korea Internet Exchange for "
9583 180 32 5 Satyam Infoway Ltd.,
7539 150 210 144 TANet2, sponsored by NSC, TAI
9768 146 386 80 Korea Telecom
4814 131 67 17 China Telecom (Group) - Beiji
7657 131 22 87 The Internet Group Limited
17676 125 1954 10 XTAGE CORPORATION
4780 118 186 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 1023 2608 846 UUNET Technologies, Inc.
3301 394 908 346 TeliaNet Sweden
5515 275 776 181 Sonera Finland Autonomous Sys
3215 265 597 164 France Telecom / &Equant
3320 233 1947 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 147 23 140 Romania Data Systems S.A.
12302 131 9 44 MobiFon S.A.
2856 125 785 115 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 2118 8921 1420 UUNET Technologies, Inc.
7018 1283 7572 934 AT&T
3908 894 1644 486 Supernet, Inc.
1239 820 3440 652 Sprint
1 805 8168 454 BBN Planet
852 743 1176 450 Telus Advanced Communications
7046 694 939 474 UUNET Technologies, Inc.
4323 631 436 257 Time Warner Communications, I
690 584 82 389 Merit Network
209 581 1967 322 Qwest
7132 568 606 136 Southwestern Bell Internet Se
3549 521 854 324 Global Crossing
7843 501 366 53 Adelphia Corp.
7066 473 202 248 Virginia Polytechnic Institut
2914 398 2110 389 Verio, Inc.
705 373 100 265 UUNET Technologies, Inc.
3741 345 731 236 The Internet Solution
2149 342 191 284 Performance Systems, Inc.
6197 341 260 164 BellSouth Network Solutions,
6347 337 370 79 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 478 461 China Education and Research
7843 501 448 Adelphia Corp.
7132 568 432 Southwestern Bell Internet Se
3908 894 408 Supernet, Inc.
4323 631 374 Time Warner Communications, I
1221 1271 359 Telstra Pty Ltd
1 805 351 BBN Planet
7018 1283 349 AT&T
852 743 293 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 299 283 USDA
209 581 259 Qwest
6347 337 258 SAVVIS Communications Corpora
7029 261 246 Alltel Information Services,
4355 275 237 EarthLink, Inc.
7303 292 227 Telecom Argentina Stet-France
7066 473 225 Virginia Polytechnic Institut
7046 694 220 UUNET Technologies, Inc.
6198 313 209 BellSouth Network Solutions,
18566 211 207 Covad Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
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
192.26.98.0/24 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 /8:19 /9:6 /10:7 /11:13 /12:33
/13:84 /14:231 /15:411 /16:7203 /17:1435 /18:2572
/19:7527 /20:7110 /21:5063 /22:7754 /23:9389 /24:62649
/25:207 /26:186 /27:78 /28:89 /29:45 /30:86
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 671 2118 UUNET Technologies, Inc.
702 630 1023 UUNET Technologies, Inc.
3908 482 894 Supernet, Inc.
690 455 584 Merit Network
7066 378 473 Virginia Polytechnic Institut
7018 331 1283 AT&T
7046 319 694 UUNET Technologies, Inc.
7843 290 501 Adelphia Corp.
209 267 581 Qwest
1 249 805 BBN Planet
7029 246 261 Alltel Information Services,
6197 245 341 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 237 394 TeliaNet Sweden
6198 231 313 BellSouth Network Solutions,
3549 218 521 Global Crossing
6517 218 240 Yipes Communications, Inc.
1239 208 820 Sprint
18566 207 211 Covad Communications
1580 202 214 HQ, 5th Signal Command
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:509 13:10 15:2 17:6
20:2 24:773 25:1 32:59 38:8 40:6
44:1 57:13 61:220 62:199 63:1963 64:1198
65:1411 66:926 67:80 68:12 80:237 81:25
128:59 129:133 130:23 131:47 132:13 133:3
134:119 135:9 136:254 137:93 138:150 139:57
140:173 141:120 142:78 143:38 144:148 145:11
146:178 147:135 148:169 149:94 150:41 151:61
152:271 153:33 154:10 155:93 156:75 157:128
158:69 159:127 160:18 161:64 162:147 163:100
164:271 165:140 166:229 167:174 168:122 169:58
170:352 171:2 192:5486 193:2326 194:2103 195:804
196:411 198:3694 199:3233 200:2683 202:3166 203:4548
204:3252 205:2150 206:2577 207:2676 208:2642 209:2727
210:590 211:225 212:874 213:611 214:9 215:18
216:3012 217:459 218:19
End of report
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