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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 23 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 112174
Prefixes after maximum aggregation: 73118
Unique aggregates announced to Internet: 52744
Total ASes present in the Internet Routing Table: 13113
Origin-only ASes present in the Internet Routing Table: 11356
Origin ASes announcing only one prefix: 4992
Transit ASes present in the Internet Routing Table: 1757
Transit-only ASes present in the Internet Routing Table: 56
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: 4
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: 1180877532
Equivalent to 70 /8s, 98 /16s and 194 /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: 45102
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18078
Total APNIC prefixes after maximum aggregation: 10983
Prefixes being announced from the APNIC address blocks: 16562
Unique aggregates announced from the APNIC address blocks: 10357
APNIC Region origin ASes present in the Internet Routing Table: 1512
APNIC Region origin ASes announcing only one prefix: 499
APNIC Region transit ASes present in the Internet Routing Table: 269
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 84777696
Equivalent to 5 /8s, 13 /16s and 154 /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: 75235
Total ARIN prefixes after maximum aggregation: 47758
Prefixes being announced from the ARIN address blocks: 53512
Unique aggregates announced from the ARIN address blocks: 16806
ARIN Region origin ASes present in the Internet Routing Table: 7737
ARIN Region origin ASes announcing only one prefix: 2448
ARIN Region transit ASes present in the Internet Routing Table: 758
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 192629700
Equivalent to 11 /8s, 123 /16s and 75 /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: 18860
Total RIPE prefixes after maximum aggregation: 14377
Prefixes being announced from the RIPE address blocks: 15521
Unique aggregates announced from the RIPE address blocks: 9770
RIPE Region origin ASes present in the Internet Routing Table: 3809
RIPE Region origin ASes announcing only one prefix: 2045
RIPE Region transit ASes present in the Internet Routing Table: 712
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 115024688
Equivalent to 6 /8s, 219 /16s and 35 /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 1272 1223 914 Telstra Pty Ltd
4538 480 1194 17 China Education and Research
2907 427 1861 368 SINET Japan
703 402 336 323 UUNET Technologies, Inc.
2764 396 360 363 connect.com.au pty ltd
7474 308 291 206 Optus Communications Pty Ltd
4134 282 2076 96 Data Communications Bureau
17557 282 19 110 Pakistan Telecom
4755 248 109 75 Videsh Sanchar Nigam Ltd. Aut
4766 223 1516 155 Korea Internet Exchange for "
9443 217 43 50 Primus Telecommunications
9583 181 32 5 Satyam Infoway Ltd.,
7539 152 218 146 TANet2, sponsored by NSC, TAI
9768 146 386 76 Korea Telecom
4814 143 67 18 China Telecom (Group) - Beiji
7657 131 22 87 The Internet Group Limited
17676 125 1954 10 XTAGE CORPORATION
4780 116 186 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 1019 2608 846 UUNET Technologies, Inc.
3301 394 908 346 TeliaNet Sweden
5515 275 776 181 Sonera Finland Autonomous Sys
3215 266 599 165 France Telecom / &Equant
3320 234 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 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 1995 8921 1420 UUNET Technologies, Inc.
7018 1291 7572 938 AT&T
3908 893 1643 485 Supernet, Inc.
1239 824 3441 655 Sprint
1 805 8168 454 BBN Planet
852 742 1176 449 Telus Advanced Communications
7046 694 939 473 UUNET Technologies, Inc.
4323 631 436 257 Time Warner Communications, I
690 588 83 384 Merit Network
209 581 1967 321 Qwest
7132 569 606 137 Southwestern Bell Internet Se
3549 521 854 324 Global Crossing
7843 500 365 54 Adelphia Corp.
7066 475 202 248 Virginia Polytechnic Institut
2914 397 2110 388 Verio, Inc.
15290 387 297 203 AT&T Canada IES
705 374 100 266 UUNET Technologies, Inc.
3741 345 731 236 The Internet Solution
2149 343 191 284 Performance Systems, Inc.
6197 341 260 164 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 480 463 China Education and Research
7843 500 446 Adelphia Corp.
7132 569 432 Southwestern Bell Internet Se
3908 893 408 Supernet, Inc.
4323 631 374 Time Warner Communications, I
1221 1272 358 Telstra Pty Ltd
7018 1291 353 AT&T
1 805 351 BBN Planet
852 742 293 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 300 284 USDA
209 581 260 Qwest
6347 337 258 SAVVIS Communications Corpora
7029 261 246 Alltel Information Services,
4355 277 239 EarthLink, Inc.
7066 475 227 Virginia Polytechnic Institut
7046 694 221 UUNET Technologies, Inc.
18566 218 214 Covad Communications
6198 313 209 BellSouth Network Solutions,
6517 240 206 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
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 /8:20 /9:6 /10:7 /11:13 /12:33
/13:84 /14:231 /15:411 /16:7206 /17:1435 /18:2588
/19:7560 /20:7138 /21:5065 /22:7736 /23:9391 /24:62472
/25:219 /26:189 /27:85 /28:95 /29:49 /30:91
/31:0 /32:50
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 627 1019 UUNET Technologies, Inc.
701 550 1995 UUNET Technologies, Inc.
3908 481 893 Supernet, Inc.
690 459 588 Merit Network
7066 380 475 Virginia Polytechnic Institut
7018 337 1291 AT&T
7046 320 694 UUNET Technologies, Inc.
7843 290 500 Adelphia Corp.
209 268 581 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.
18566 214 218 Covad Communications
1239 211 824 Sprint
1580 204 216 HQ, 5th Signal Command
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:508 13:10 15:2 17:6
20:2 24:774 25:1 32:40 38:8 40:6
44:1 57:13 61:214 62:201 63:1968 64:1201
65:1313 66:931 67:79 68:14 80:237 81:25
128:59 129:134 130:23 131:47 132:13 133:3
134:119 135:9 136:253 137:93 138:150 139:57
140:174 141:120 142:75 143:38 144:148 145:11
146:178 147:136 148:170 149:94 150:41 151:61
152:269 153:32 154:14 155:102 156:75 157:127
158:69 159:127 160:17 161:64 162:147 163:100
164:267 165:140 166:229 167:174 168:124 169:58
170:352 171:2 192:5497 193:2325 194:2105 195:804
196:409 198:3688 199:3235 200:2562 202:3168 203:4552
204:3251 205:2153 206:2580 207:2683 208:2652 209:2734
210:593 211:224 212:875 213:614 214:9 215:18
216:3008 217:460 218:19 219:1
End of report
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