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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 Tue 04 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113395
Prefixes after maximum aggregation: 73252
Unique aggregates announced to Internet: 52213
Total ASes present in the Internet Routing Table: 13176
Origin-only ASes present in the Internet Routing Table: 11432
Origin ASes announcing only one prefix: 5024
Transit ASes present in the Internet Routing Table: 1744
Transit-only ASes present in the Internet Routing Table: 52
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 18
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: 38
Number of addresses announced to Internet: 1184067404
Equivalent to 70 /8s, 147 /16s and 111 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 46045
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18219
Total APNIC prefixes after maximum aggregation: 10961
Prefixes being announced from the APNIC address blocks: 16677
Unique aggregates announced from the APNIC address blocks: 9830
APNIC Region origin ASes present in the Internet Routing Table: 1523
APNIC Region origin ASes announcing only one prefix: 500
APNIC Region transit ASes present in the Internet Routing Table: 270
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 90036576
Equivalent to 5 /8s, 93 /16s and 217 /24s
Percentage of available APNIC address space announced: 66.6
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: 75928
Total ARIN prefixes after maximum aggregation: 47796
Prefixes being announced from the ARIN address blocks: 54080
Unique aggregates announced from the ARIN address blocks: 16675
ARIN Region origin ASes present in the Internet Routing Table: 7779
ARIN Region origin ASes announcing only one prefix: 2473
ARIN Region transit ASes present in the Internet Routing Table: 761
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 192734148
Equivalent to 11 /8s, 124 /16s and 227 /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: 19248
Total RIPE prefixes after maximum aggregation: 14495
Prefixes being announced from the RIPE address blocks: 15939
Unique aggregates announced from the RIPE address blocks: 9877
RIPE Region origin ASes present in the Internet Routing Table: 3822
RIPE Region origin ASes announcing only one prefix: 2051
RIPE Region transit ASes present in the Internet Routing Table: 698
Average RIPE Region AS path length visible: 6.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 115103264
Equivalent to 6 /8s, 220 /16s and 86 /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 1269 1223 911 Telstra Pty Ltd
4538 485 1258 18 China Education and Research
2907 426 1861 367 SINET Japan
703 405 337 325 UUNET Technologies, Inc.
2764 393 360 358 connect.com.au pty ltd
7474 307 291 203 Optus Communications Pty Ltd
17557 284 19 106 Pakistan Telecom
4134 282 2100 96 Data Communications Bureau
9443 266 44 63 Primus Telecommunications
4755 250 107 78 Videsh Sanchar Nigam Ltd. Aut
4766 225 1516 156 Korea Internet Exchange for "
4814 178 70 12 China Telecom (Group) - Beiji
9583 177 32 5 Satyam Infoway Ltd.,
7539 156 220 150 TANet2, sponsored by NSC, TAI
9768 147 387 76 Korea Telecom
17676 146 2258 23 XTAGE CORPORATION
7657 136 22 86 The Internet Group Limited
4780 116 186 39 Digital United Inc.
4713 115 1009 106 NTT Communications Corporatio
9800 115 4223 12 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1022 2606 848 UUNET Technologies, Inc.
3301 398 908 349 TeliaNet Sweden
3352 276 521 26 Ibernet, Internet Access Netw
3215 267 599 165 France Telecom / &Equant
5515 266 783 176 Sonera Finland Autonomous Sys
3320 235 1948 188 Deutsche Telekom AG
680 231 2149 230 DFN-IP service G-WiN
1257 206 430 203 SWIPnet Swedish IP Network
5400 203 83 94 Concert European Core Network
719 189 290 127 LANLINK autonomous system
786 183 1874 182 The JANET IP Service
8708 147 23 140 Romania Data Systems S.A.
12302 134 4104 34 MobiFon S.A.
2856 125 789 115 BTnet UK Regional network
3303 117 546 116 Swisscom Ltd
8297 114 57 65 Teleglobe Autonomous System i
3269 113 692 70 TELECOM ITALIA
3246 107 300 101 Song Networks / Clinet
5511 105 191 87 France Telecom
3233 104 7 53 RNC - Romanian Natioanal R&D
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2006 8914 1435 UUNET Technologies, Inc.
7018 1294 7548 936 AT&T
3908 903 1641 491 Supernet, Inc.
1239 826 3438 655 Sprint
1 807 8152 447 GENUITY
852 802 1192 451 Telus Advanced Communications
705 686 148 269 UUNET Technologies, Inc.
7046 643 902 433 UUNET Technologies, Inc.
4323 627 436 257 Time Warner Communications, I
209 593 1970 328 Qwest
690 579 79 376 Merit Network
7132 571 607 138 Southwestern Bell Internet Se
3549 516 854 322 Global Crossing
7843 500 357 70 Adelphia Corp.
7066 475 202 248 Virginia Polytechnic Institut
2914 396 2108 389 Verio, Inc.
15290 391 299 204 AT&T Canada IES
3741 345 731 236 The Internet Solution
2149 342 191 283 Performance Systems, Inc.
6197 340 245 164 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 485 467 China Education and Research
7132 571 433 Southwestern Bell Internet Se
7843 500 430 Adelphia Corp.
705 686 417 UUNET Technologies, Inc.
3908 903 412 Supernet, Inc.
4323 627 370 Time Warner Communications, I
1 807 360 GENUITY
7018 1294 358 AT&T
1221 1269 358 Telstra Pty Ltd
852 802 351 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 287 271 USDA
209 593 265 Qwest
6347 337 258 SAVVIS Communications Corpora
3352 276 250 Ibernet, Internet Access Netw
4355 282 244 EarthLink, Inc.
7029 257 242 Alltel Information Services,
7066 475 227 Virginia Polytechnic Institut
18566 222 218 Covad Communications
6198 319 214 BellSouth Network Solutions,
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 GENUITY
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
192.44.0.0/19 702 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 /8:21 /9:6 /10:7 /11:12 /12:34
/13:85 /14:232 /15:414 /16:7230 /17:1441 /18:2591
/19:7582 /20:7191 /21:5121 /22:7800 /23:9495 /24:63389
/25:214 /26:186 /27:82 /28:93 /29:53 /30:86
/31:1 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 626 1022 UUNET Technologies, Inc.
701 560 2006 UUNET Technologies, Inc.
705 491 686 UUNET Technologies, Inc.
3908 490 903 Supernet, Inc.
690 451 579 Merit Network
7066 380 475 Virginia Polytechnic Institut
7018 341 1294 AT&T
7843 300 500 Adelphia Corp.
7046 282 643 UUNET Technologies, Inc.
209 269 593 Qwest
1 256 807 GENUITY
6197 245 340 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
7029 242 257 Alltel Information Services,
3301 238 398 TeliaNet Sweden
6198 232 319 BellSouth Network Solutions,
6517 219 241 Yipes Communications, Inc.
18566 218 222 Covad Communications
3549 214 516 Global Crossing
1239 210 826 Sprint
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:511 13:10 15:2 17:6
20:2 24:779 25:1 32:41 38:8 40:6
44:1 57:13 61:238 62:204 63:1943 64:1235
65:1612 66:912 67:82 68:61 80:239 81:24
128:61 129:138 130:23 131:51 132:11 133:3
134:118 135:8 136:245 137:90 138:150 139:57
140:174 141:119 142:77 143:38 144:152 145:13
146:173 147:138 148:203 149:92 150:39 151:97
152:266 153:33 154:14 155:105 156:76 157:133
158:69 159:128 160:18 161:66 162:151 163:99
164:274 165:141 166:228 167:170 168:117 169:58
170:350 171:2 192:5506 193:2364 194:2142 195:960
196:432 198:3716 199:3230 200:2574 202:3156 203:4573
204:3252 205:2175 206:2581 207:2715 208:2661 209:2751
210:598 211:223 212:928 213:630 214:9 215:19
216:3004 217:460 218:28
End of report
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