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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 19 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 112402
Prefixes after maximum aggregation: 73276
Unique aggregates announced to Internet: 53240
Total ASes present in the Internet Routing Table: 13090
Origin-only ASes present in the Internet Routing Table: 11353
Origin ASes announcing only one prefix: 4988
Transit ASes present in the Internet Routing Table: 1737
Transit-only ASes present in the Internet Routing Table: 49
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: 1
Prefixes being announced from the IANA Reserved Address blocks: 40
Number of addresses announced to Internet: 1174186172
Equivalent to 69 /8s, 252 /16s and 168 /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: 45398
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18062
Total APNIC prefixes after maximum aggregation: 10915
Prefixes being announced from the APNIC address blocks: 16564
Unique aggregates announced from the APNIC address blocks: 10269
APNIC Region origin ASes present in the Internet Routing Table: 1509
APNIC Region origin ASes announcing only one prefix: 500
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: 84699584
Equivalent to 5 /8s, 12 /16s and 105 /24s
Percentage of available APNIC address space announced: 62.6
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: 75462
Total ARIN prefixes after maximum aggregation: 48003
Prefixes being announced from the ARIN address blocks: 53761
Unique aggregates announced from the ARIN address blocks: 16845
ARIN Region origin ASes present in the Internet Routing Table: 7733
ARIN Region origin ASes announcing only one prefix: 2447
ARIN Region transit ASes present in the Internet Routing Table: 747
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 192232132
Equivalent to 11 /8s, 117 /16s and 58 /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: 18878
Total RIPE prefixes after maximum aggregation: 14358
Prefixes being announced from the RIPE address blocks: 15580
Unique aggregates announced from the RIPE address blocks: 10367
RIPE Region origin ASes present in the Internet Routing Table: 3799
RIPE Region origin ASes announcing only one prefix: 2041
RIPE Region transit ASes present in the Internet Routing Table: 705
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 109560880
Equivalent to 6 /8s, 135 /16s and 196 /24s
Percentage of available RIPE address space announced: 72.6
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 913 Telstra Pty Ltd
4538 478 1194 17 China Education and Research
2907 429 1877 370 SINET Japan
703 403 337 324 UUNET Technologies, Inc.
2764 395 359 362 connect.com.au pty ltd
7474 308 291 206 Optus Communications Pty Ltd
17557 283 19 115 Pakistan Telecom
4134 281 2060 95 Data Communications Bureau
9443 272 44 63 Primus Telecommunications
4755 253 109 75 Videsh Sanchar Nigam Ltd. Aut
4766 224 1518 156 Korea Internet Exchange for "
9583 176 32 5 Satyam Infoway Ltd.,
7539 152 218 146 TANet2, sponsored by NSC, TAI
9768 146 386 80 Korea Telecom
7657 131 22 87 The Internet Group Limited
4814 127 66 13 China Telecom (Group) - Beiji
17676 125 1954 10 XTAGE CORPORATION
4780 118 186 39 Digital United Inc.
4713 114 993 105 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 1022 2608 847 UUNET Technologies, Inc.
3301 392 908 345 TeliaNet Sweden
5515 275 776 181 Sonera Finland Autonomous Sys
3215 264 581 163 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
719 168 289 120 LANLINK autonomous system
8708 146 22 140 Romania Data Systems S.A.
12302 128 9 46 MobiFon S.A.
2856 125 785 115 BTnet UK Regional network
3303 117 546 115 Swisscom Ltd
3269 115 694 71 TELECOM ITALIA
8297 115 57 64 Teleglobe Autonomous System i
5511 111 191 92 France Telecom
517 101 226 97 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 2092 8379 1453 UUNET Technologies, Inc.
7018 1288 7574 937 AT&T
3908 892 1644 486 Supernet, Inc.
1239 826 3411 667 Sprint
1 809 8169 454 BBN Planet
7046 683 871 476 UUNET Technologies, Inc.
852 664 1132 422 Telus Advanced Communications
4323 631 436 257 Time Warner Communications, I
209 581 1967 323 Qwest
7132 568 606 136 Southwestern Bell Internet Se
690 564 82 366 Merit Network
3549 518 854 323 Global Crossing
7843 501 365 52 Adelphia Corp.
7066 472 202 248 Virginia Polytechnic Institut
2914 398 2094 389 Verio, Inc.
705 370 99 262 UUNET Technologies, Inc.
3741 344 731 236 The Internet Solution
2149 342 191 284 Performance Systems, Inc.
4293 341 84 264 Cable & Wireless USA
6197 341 260 164 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 478 461 China Education and Research
7843 501 449 Adelphia Corp.
7132 568 432 Southwestern Bell Internet Se
3908 892 406 Supernet, Inc.
4323 631 374 Time Warner Communications, I
1221 1269 356 Telstra Pty Ltd
1 809 355 BBN Planet
7018 1288 351 AT&T
11371 292 286 Rhythms NetConnections
4151 300 284 USDA
209 581 258 Qwest
6347 337 258 SAVVIS Communications Corpora
7029 261 246 Alltel Information Services,
852 664 242 Telus Advanced Communications
4355 277 239 EarthLink, Inc.
7066 472 224 Virginia Polytechnic Institut
6198 313 209 BellSouth Network Solutions,
9443 272 209 Primus Telecommunications
7046 683 207 UUNET Technologies, Inc.
18566 211 207 Covad Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
192.31.126.0/23 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 /12:32
/13:85 /14:232 /15:407 /16:7196 /17:1435 /18:2573
/19:7533 /20:7120 /21:5064 /22:7759 /23:9382 /24:62730
/25:211 /26:180 /27:87 /28:98 /29:46 /30:116
/31:0 /32:71
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 666 2092 UUNET Technologies, Inc.
702 629 1022 UUNET Technologies, Inc.
3908 481 892 Supernet, Inc.
690 455 564 Merit Network
7066 377 472 Virginia Polytechnic Institut
7018 333 1288 AT&T
7046 316 683 UUNET Technologies, Inc.
7843 290 501 Adelphia Corp.
209 267 581 Qwest
1 252 809 BBN Planet
7029 246 261 Alltel Information Services,
6197 245 341 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 237 392 TeliaNet Sweden
6198 231 313 BellSouth Network Solutions,
4293 219 341 Cable & Wireless USA
3549 216 518 Global Crossing
6517 216 238 Yipes Communications, Inc.
1239 213 826 Sprint
18566 207 211 Covad Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:507 13:10 15:2 17:7
20:2 24:767 25:1 32:40 38:8 40:6
44:1 57:13 61:219 62:201 63:1975 64:1197
65:1402 66:919 67:78 68:12 80:234 81:26
128:59 129:133 130:23 131:47 132:13 133:3
134:119 135:9 136:255 137:93 138:150 139:56
140:173 141:120 142:78 143:38 144:148 145:11
146:178 147:134 148:169 149:93 150:41 151:60
152:270 153:33 154:3 155:100 156:75 157:128
158:69 159:127 160:18 161:64 162:146 163:99
164:269 165:145 166:229 167:171 168:123 169:57
170:337 171:2 192:5468 193:2328 194:2103 195:843
196:411 198:3691 199:3235 200:2522 202:3159 203:4556
204:3252 205:2175 206:2629 207:2670 208:2824 209:2721
210:599 211:224 212:879 213:611 214:9 215:18
216:3027 217:459 218:18
End of report
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