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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 15 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 112323
Prefixes after maximum aggregation: 73280
Unique aggregates announced to Internet: 53245
Total ASes present in the Internet Routing Table: 13059
Origin-only ASes present in the Internet Routing Table: 11326
Origin ASes announcing only one prefix: 4970
Transit ASes present in the Internet Routing Table: 1733
Transit-only ASes present in the Internet Routing Table: 47
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 22
Illegal AS announcements present in the Routing Table: 2
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: 1174107964
Equivalent to 69 /8s, 251 /16s and 119 /24s
Percentage of available address space announced: 31.7
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45298
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18119
Total APNIC prefixes after maximum aggregation: 10939
Prefixes being announced from the APNIC address blocks: 16623
Unique aggregates announced from the APNIC address blocks: 10311
APNIC Region origin ASes present in the Internet Routing Table: 1506
APNIC Region origin ASes announcing only one prefix: 495
APNIC Region transit ASes present in the Internet Routing Table: 268
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 84605248
Equivalent to 5 /8s, 10 /16s and 249 /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: 75355
Total ARIN prefixes after maximum aggregation: 47983
Prefixes being announced from the ARIN address blocks: 53605
Unique aggregates announced from the ARIN address blocks: 16779
ARIN Region origin ASes present in the Internet Routing Table: 7708
ARIN Region origin ASes announcing only one prefix: 2433
ARIN Region transit ASes present in the Internet Routing Table: 756
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 192198340
Equivalent to 11 /8s, 116 /16s and 182 /24s
Percentage of available ARIN address space announced: 71.6
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: 18849
Total RIPE prefixes after maximum aggregation: 14358
Prefixes being announced from the RIPE address blocks: 15499
Unique aggregates announced from the RIPE address blocks: 10378
RIPE Region origin ASes present in the Internet Routing Table: 3798
RIPE Region origin ASes announcing only one prefix: 2042
RIPE Region transit ASes present in the Internet Routing Table: 694
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 109383984
Equivalent to 6 /8s, 133 /16s and 17 /24s
Percentage of available RIPE address space announced: 72.4
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 1270 1209 936 Telstra Pty Ltd
4538 477 1194 17 China Education and Research
2907 438 1927 373 SINET Japan
703 408 337 327 UUNET Technologies, Inc.
2764 397 360 364 connect.com.au pty ltd
7474 304 291 206 Optus Communications Pty Ltd
17557 283 19 113 Pakistan Telecom
4134 281 2068 95 Data Communications Bureau
9443 275 44 63 Primus Telecommunications
4755 251 106 72 Videsh Sanchar Nigam Ltd. Aut
4766 220 1518 156 Korea Internet Exchange for "
9583 169 32 5 Satyam Infoway Ltd.,
4804 165 92 66 Microplex PTY LTD
7539 152 218 146 TANet2, sponsored by NSC, TAI
9768 146 386 80 Korea Telecom
7657 128 22 88 The Internet Group Limited
17676 125 1954 10 XTAGE CORPORATION
4780 118 186 39 Digital United Inc.
4713 115 993 106 NTT Communications Corporatio
4814 114 64 6 China Telecom (Group) - Beiji
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1035 2600 852 UUNET Technologies, Inc.
3301 392 908 346 TeliaNet Sweden
5515 278 777 175 Sonera Finland Autonomous Sys
3215 265 597 164 France Telecom / &Equant
680 231 2149 230 DFN-IP service G-WiN
3320 230 1947 177 Deutsche Telekom AG
1257 207 446 204 SWIPnet Swedish IP Network
5400 199 83 94 Concert European Core Network
786 182 1874 182 The JANET IP Service
719 164 289 118 LANLINK autonomous system
8708 141 22 136 Romania Data Systems S.A.
12302 131 9 50 MobiFon S.A.
2856 126 786 116 BTnet UK Regional network
8297 125 54 69 Teleglobe Autonomous System i
3303 117 546 115 Swisscom Ltd
3269 115 694 71 TELECOM ITALIA
5511 110 191 92 France Telecom
517 101 226 97 KPNQwest Germany GmbH
2830 99 243 75 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 2079 8378 1460 UUNET Technologies, Inc.
7018 1290 7559 936 AT&T
3908 874 1643 487 Supernet, Inc.
1239 853 3412 675 Sprint
1 813 8185 458 BBN Planet
7046 699 873 483 UUNET Technologies, Inc.
852 664 1132 422 Telus Advanced Communications
4323 633 436 257 Time Warner Communications, I
209 580 1935 321 Qwest
7132 571 605 139 Southwestern Bell Internet Se
690 543 76 350 Merit Network
3549 516 854 320 Global Crossing
7843 486 365 55 Adelphia Corp.
7066 473 202 248 Virginia Polytechnic Institut
2914 407 2142 394 Verio, Inc.
705 370 100 262 UUNET Technologies, Inc.
3741 344 731 236 The Internet Solution
2149 343 191 285 Performance Systems, Inc.
4293 342 84 265 Cable & Wireless USA
6197 341 261 165 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 486 431 Adelphia Corp.
3908 874 387 Supernet, Inc.
4323 633 376 Time Warner Communications, I
1 813 355 BBN Planet
7018 1290 354 AT&T
1221 1270 334 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 300 284 USDA
209 580 259 Qwest
6347 338 258 SAVVIS Communications Corpora
7029 261 246 Alltel Information Services,
852 664 242 Telus Advanced Communications
4355 272 234 EarthLink, Inc.
7066 473 225 Virginia Polytechnic Institut
7046 699 216 UUNET Technologies, Inc.
6517 278 213 Yipes Communications, Inc.
9443 275 212 Primus Telecommunications
6198 315 209 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18189 UNALLOCATED 202.59.196.0/24 703 UUNET Technologies,
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 /8:19 /9:6 /10:7 /11:13 /12:32
/13:85 /14:232 /15:407 /16:7198 /17:1439 /18:2572
/19:7509 /20:7115 /21:5069 /22:7730 /23:9396 /24:62741
/25:211 /26:188 /27:78 /28:86 /29:50 /30:91
/31:0 /32:49
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 646 2079 UUNET Technologies, Inc.
702 644 1035 UUNET Technologies, Inc.
3908 463 874 Supernet, Inc.
690 451 543 Merit Network
7066 378 473 Virginia Polytechnic Institut
7018 338 1290 AT&T
7046 330 699 UUNET Technologies, Inc.
7843 279 486 Adelphia Corp.
209 268 580 Qwest
1 251 813 BBN Planet
7029 246 261 Alltel Information Services,
6197 245 341 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
1239 240 853 Sprint
3301 235 392 TeliaNet Sweden
6198 231 315 BellSouth Network Solutions,
6517 225 278 Yipes Communications, Inc.
4293 220 342 Cable & Wireless USA
3549 217 516 Global Crossing
1580 202 214 HQ, 5th Signal Command
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:504 13:10 15:2 17:7
20:2 24:769 25:1 32:58 38:8 40:6
44:1 57:13 61:201 62:201 63:1983 64:1219
65:1344 66:931 67:71 68:10 80:237 81:26
128:59 129:139 130:23 131:47 132:13 133:3
134:121 135:9 136:255 137:93 138:150 139:52
140:183 141:120 142:81 143:38 144:148 145:11
146:178 147:136 148:167 149:93 150:41 151:61
152:288 153:33 154:3 155:100 156:74 157:127
158:69 159:126 160:18 161:64 162:147 163:101
164:271 165:122 166:229 167:170 168:124 169:57
170:306 171:2 192:5461 193:2321 194:2102 195:805
196:408 198:3748 199:3208 200:2507 202:3147 203:4559
204:3262 205:2178 206:2639 207:2683 208:2833 209:2700
210:662 211:237 212:875 213:617 214:8 215:18
216:3021 217:462 218:20
End of report
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