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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 Thu 09 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 112050
Prefixes after maximum aggregation: 72998
Unique aggregates announced to Internet: 53192
Total ASes present in the Internet Routing Table: 13043
Origin-only ASes present in the Internet Routing Table: 11309
Origin ASes announcing only one prefix: 4964
Transit ASes present in the Internet Routing Table: 1734
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: 17
Illegal AS announcements present in the Routing Table: 12
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: 1189711164
Equivalent to 70 /8s, 233 /16s and 141 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45215
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18136
Total APNIC prefixes after maximum aggregation: 10894
Prefixes being announced from the APNIC address blocks: 16639
Unique aggregates announced from the APNIC address blocks: 10288
APNIC Region origin ASes present in the Internet Routing Table: 1499
APNIC Region origin ASes announcing only one prefix: 491
APNIC Region transit ASes present in the Internet Routing Table: 266
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 84410176
Equivalent to 5 /8s, 7 /16s and 255 /24s
Percentage of available APNIC address space announced: 62.4
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: 75095
Total ARIN prefixes after maximum aggregation: 47756
Prefixes being announced from the ARIN address blocks: 53160
Unique aggregates announced from the ARIN address blocks: 16744
ARIN Region origin ASes present in the Internet Routing Table: 7708
ARIN Region origin ASes announcing only one prefix: 2431
ARIN Region transit ASes present in the Internet Routing Table: 756
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 191630276
Equivalent to 11 /8s, 108 /16s and 11 /24s
Percentage of available ARIN address space announced: 71.4
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: 18819
Total RIPE prefixes after maximum aggregation: 14348
Prefixes being announced from the RIPE address blocks: 15475
Unique aggregates announced from the RIPE address blocks: 10331
RIPE Region origin ASes present in the Internet Routing Table: 3789
RIPE Region origin ASes announcing only one prefix: 2042
RIPE Region transit ASes present in the Internet Routing Table: 696
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 108976176
Equivalent to 6 /8s, 126 /16s and 216 /24s
Percentage of available RIPE address space announced: 72.2
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 1271 1209 936 Telstra Pty Ltd
4538 473 1194 17 China Education and Research
2907 434 1878 371 SINET Japan
703 412 337 328 UUNET Technologies, Inc.
2764 398 361 365 connect.com.au pty ltd
7474 308 291 210 Optus Communications Pty Ltd
4134 281 2068 95 Data Communications Bureau
9443 275 44 63 Primus Telecommunications
17557 275 19 110 Pakistan Telecom
4755 243 108 70 Videsh Sanchar Nigam Ltd. Aut
4766 222 1518 158 Korea Internet Exchange for "
9583 168 32 5 Satyam Infoway Ltd.,
4804 167 92 66 Microplex PTY LTD
7539 165 238 159 TANet2, sponsored by NSC, TAI
9768 146 386 80 Korea Telecom
4814 126 64 6 China Telecom (Group) - Beiji
7657 126 22 89 The Internet Group Limited
17676 121 1936 8 XTAGE CORPORATION
4713 115 993 106 NTT Communications Corporatio
9800 113 186 22 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1038 2615 854 UUNET Technologies, Inc.
3301 393 908 345 TeliaNet Sweden
5515 275 761 173 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 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 142 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 116 546 115 Swisscom Ltd
3269 114 694 71 TELECOM ITALIA
5511 107 191 94 France Telecom
517 101 226 97 KPNQwest Germany GmbH
2830 99 228 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 2066 8394 1465 UUNET Technologies, Inc.
7018 1288 7525 938 AT&T
3908 873 1642 484 Supernet, Inc.
1239 847 3392 669 Sprint
1 810 8185 454 BBN Planet
7046 750 877 524 UUNET Technologies, Inc.
852 669 1148 424 Telus Advanced Communications
4323 632 436 256 Time Warner Communications, I
209 581 1935 320 Qwest
7132 570 605 138 Southwestern Bell Internet Se
3549 518 856 322 Global Crossing
690 506 73 321 Merit Network
7066 472 202 248 Virginia Polytechnic Institut
7843 460 353 51 Adelphia Corp.
2914 417 2145 404 Verio, Inc.
705 369 99 261 UUNET Technologies, Inc.
2149 346 207 288 Performance Systems, Inc.
3741 344 731 236 The Internet Solution
6197 336 244 162 BellSouth Network Solutions,
6347 334 370 79 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 473 456 China Education and Research
7132 570 432 Southwestern Bell Internet Se
7843 460 409 Adelphia Corp.
3908 873 389 Supernet, Inc.
4323 632 376 Time Warner Communications, I
1 810 356 BBN Planet
7018 1288 350 AT&T
1221 1271 335 Telstra Pty Ltd
4151 302 286 USDA
11371 292 286 Rhythms NetConnections
209 581 261 Qwest
6347 334 255 SAVVIS Communications Corpora
852 669 245 Telus Advanced Communications
7029 259 244 Alltel Information Services,
7046 750 226 UUNET Technologies, Inc.
7066 472 224 Virginia Polytechnic Institut
4355 260 224 EarthLink, Inc.
9443 275 212 Primus Telecommunications
6517 245 211 Yipes Communications, Inc.
1580 214 201 HQ, 5th Signal Command
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
25707 UNALLOCATED 12.17.14.0/24 1239 Sprint
25707 UNALLOCATED 12.17.15.0/24 1239 Sprint
25707 UNALLOCATED 12.96.90.0/24 1239 Sprint
25707 UNALLOCATED 63.167.148.0/24 1239 Sprint
112 UNALLOCATED 192.175.48.0/24 7500 A Root DNS Server in
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
23399 UNALLOCATED 208.18.224.0/24 1239 Sprint
23399 UNALLOCATED 208.18.236.0/24 1239 Sprint
23399 UNALLOCATED 208.18.237.0/24 1239 Sprint
23399 UNALLOCATED 208.18.238.0/24 1239 Sprint
23399 UNALLOCATED 208.18.239.0/24 1239 Sprint
25733 UNALLOCATED 208.33.184.0/22 1239 Sprint
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 /9:8 /10:7 /11:13 /12:32
/13:85 /14:231 /15:405 /16:7193 /17:1432 /18:2568
/19:7493 /20:7060 /21:5035 /22:7738 /23:9393 /24:62542
/25:222 /26:195 /27:90 /28:91 /29:53 /30:96
/31:0 /32:48
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 646 1038 UUNET Technologies, Inc.
701 629 2066 UUNET Technologies, Inc.
3908 451 873 Supernet, Inc.
690 445 506 Merit Network
7066 380 472 Virginia Polytechnic Institut
7046 376 750 UUNET Technologies, Inc.
7018 335 1288 AT&T
209 270 581 Qwest
7843 265 460 Adelphia Corp.
11371 245 292 Rhythms NetConnections
7029 244 259 Alltel Information Services,
1 243 810 BBN Planet
6197 240 336 BellSouth Network Solutions,
1239 237 847 Sprint
3301 236 393 TeliaNet Sweden
6198 228 310 BellSouth Network Solutions,
6517 223 245 Yipes Communications, Inc.
3549 218 518 Global Crossing
1580 202 214 HQ, 5th Signal Command
3215 200 265 France Telecom / &Equant
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:501 13:10 15:2 17:7
20:2 24:760 25:1 32:67 38:8 40:6
44:1 57:13 61:200 62:197 63:2033 64:1216
65:1313 66:923 67:70 68:9 80:243 81:19
128:59 129:138 130:23 131:47 132:12 133:3
134:120 135:9 136:315 137:93 138:150 139:53
140:184 141:119 142:80 143:38 144:146 145:12
146:225 147:135 148:162 149:93 150:41 151:60
152:313 153:33 154:9 155:99 156:74 157:125
158:68 159:130 160:24 161:64 162:149 163:102
164:274 165:127 166:229 167:171 168:124 169:55
170:306 171:2 192:5460 193:2326 194:2111 195:805
196:413 198:3748 199:3216 200:2478 202:3148 203:4526
204:3272 205:2166 206:2573 207:2653 208:2633 209:2700
210:674 211:239 212:875 213:607 214:9 215:18
216:3018 217:454 218:20
End of report
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