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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 11 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113773
Prefixes after maximum aggregation: 73315
Unique aggregates announced to Internet: 52569
Total ASes present in the Internet Routing Table: 13202
Origin-only ASes present in the Internet Routing Table: 11441
Origin ASes announcing only one prefix: 5025
Transit ASes present in the Internet Routing Table: 1761
Transit-only ASes present in the Internet Routing Table: 53
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 19
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: 1196796620
Equivalent to 71 /8s, 85 /16s and 170 /24s
Percentage of available address space announced: 32.3
Percentage of allocated address space announced: 60.2
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 46291
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18412
Total APNIC prefixes after maximum aggregation: 11033
Prefixes being announced from the APNIC address blocks: 16862
Unique aggregates announced from the APNIC address blocks: 9831
APNIC Region origin ASes present in the Internet Routing Table: 1530
APNIC Region origin ASes announcing only one prefix: 499
APNIC Region transit ASes present in the Internet Routing Table: 271
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 90153824
Equivalent to 5 /8s, 95 /16s and 163 /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: 76060
Total ARIN prefixes after maximum aggregation: 47758
Prefixes being announced from the ARIN address blocks: 54260
Unique aggregates announced from the ARIN address blocks: 16647
ARIN Region origin ASes present in the Internet Routing Table: 7787
ARIN Region origin ASes announcing only one prefix: 2475
ARIN Region transit ASes present in the Internet Routing Table: 766
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 193223748
Equivalent to 11 /8s, 132 /16s and 92 /24s
Percentage of available ARIN address space announced: 72.0
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: 19301
Total RIPE prefixes after maximum aggregation: 14524
Prefixes being announced from the RIPE address blocks: 15964
Unique aggregates announced from the RIPE address blocks: 10535
RIPE Region origin ASes present in the Internet Routing Table: 3832
RIPE Region origin ASes announcing only one prefix: 2051
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: 19
Number of RIPE addresses announced to Internet: 110390560
Equivalent to 6 /8s, 148 /16s and 109 /24s
Percentage of available RIPE address space announced: 73.1
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 1260 1222 903 Telstra Pty Ltd
4538 470 1258 18 China Education and Research
703 410 350 328 UUNET Technologies, Inc.
2907 386 1876 359 SINET Japan
2764 376 359 343 connect.com.au pty ltd
7474 310 292 204 Optus Communications Pty Ltd
17557 297 20 108 Pakistan Telecom
4134 290 2132 102 Data Communications Bureau
9443 270 45 65 Primus Telecommunications
4755 268 114 78 Videsh Sanchar Nigam Ltd. Aut
4766 225 1516 156 Korea Internet Exchange for "
4814 195 79 14 China Telecom (Group) - Beiji
4713 183 1009 106 NTT Communications Corporatio
9583 167 32 5 Satyam Infoway Ltd.,
7539 155 203 150 TANet2, sponsored by NSC, TAI
9768 146 386 75 Korea Telecom
17676 146 2258 23 XTAGE CORPORATION
7657 137 22 87 The Internet Group Limited
4780 116 186 39 Digital United Inc.
9800 115 187 23 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1026 2621 850 UUNET Technologies, Inc.
3301 396 892 347 TeliaNet Sweden
5515 286 783 176 Sonera Finland Autonomous Sys
3352 278 537 27 Ibernet, Internet Access Netw
3215 263 598 163 France Telecom / &Equant
680 233 2149 230 DFN-IP service G-WiN
3320 232 1948 185 Deutsche Telekom AG
1257 203 430 200 SWIPnet Swedish IP Network
5400 203 83 94 Concert European Core Network
719 190 290 128 LANLINK autonomous system
786 179 1873 178 The JANET IP Service
8708 154 23 138 Romania Data Systems S.A.
2856 125 789 115 BTnet UK Regional network
12302 124 10 31 MobiFon S.A.
3303 118 546 117 Swisscom Ltd
8297 114 57 65 Teleglobe Autonomous System i
3269 113 692 70 TELECOM ITALIA
3246 106 284 100 Song Networks / Clinet
3233 102 6 56 RNC - Romanian Natioanal R&D
2874 98 85 38 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2006 9083 1409 UUNET Technologies, Inc.
7018 1293 7548 938 AT&T
3908 906 1642 493 Supernet, Inc.
1239 818 3415 652 Sprint
705 802 188 276 UUNET Technologies, Inc.
1 799 8148 450 GENUITY
852 798 1191 447 Telus Advanced Communications
4323 629 436 258 Time Warner Communications, I
7046 614 852 408 UUNET Technologies, Inc.
209 603 1973 337 Qwest
690 575 79 363 Merit Network
7132 559 600 156 Southwestern Bell Internet Se
7843 513 365 77 Adelphia Corp.
3549 493 857 323 Global Crossing
7066 476 202 249 Virginia Polytechnic Institut
2914 397 2108 389 Verio, Inc.
15290 386 299 200 AT&T Canada IES
3741 344 731 236 The Internet Solution
6197 344 246 169 BellSouth Network Solutions,
2149 340 190 281 Performance Systems, Inc.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
705 802 526 UUNET Technologies, Inc.
4538 470 452 China Education and Research
7843 513 436 Adelphia Corp.
3908 906 413 Supernet, Inc.
7132 559 403 Southwestern Bell Internet Se
4323 629 371 Time Warner Communications, I
1221 1260 357 Telstra Pty Ltd
7018 1293 355 AT&T
852 798 351 Telus Advanced Communications
1 799 349 GENUITY
11371 292 286 Rhythms NetConnections
4151 286 270 USDA
209 603 266 Qwest
6347 337 259 SAVVIS Communications Corpora
3352 278 251 Ibernet, Internet Access Netw
7029 263 248 Alltel Information Services,
4355 284 242 EarthLink, Inc.
7066 476 227 Virginia Polytechnic Institut
18566 223 219 Covad Communications
4454 239 216 OIR Telecommunications, State
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
/13:86 /14:233 /15:415 /16:7233 /17:1455 /18:2611
/19:7605 /20:7208 /21:5093 /22:7816 /23:9534 /24:63663
/25:214 /26:189 /27:82 /28:85 /29:48 /30:87
/31:1 /32:35
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 630 1026 UUNET Technologies, Inc.
705 597 802 UUNET Technologies, Inc.
701 565 2006 UUNET Technologies, Inc.
3908 493 906 Supernet, Inc.
690 453 575 Merit Network
7066 381 476 Virginia Polytechnic Institut
7018 341 1293 AT&T
7843 308 513 Adelphia Corp.
209 271 603 Qwest
7046 261 614 UUNET Technologies, Inc.
1 258 799 GENUITY
7029 248 263 Alltel Information Services,
6197 247 344 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 238 396 TeliaNet Sweden
6198 233 320 BellSouth Network Solutions,
18566 219 223 Covad Communications
6517 218 239 Yipes Communications, Inc.
1239 208 818 Sprint
1580 203 233 HQ, 5th Signal Command
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:511 13:10 15:2 17:6
20:2 24:780 25:1 32:41 38:8 40:6
44:1 57:13 61:262 62:200 63:1939 64:1241
65:1633 66:940 67:85 68:163 80:239 81:28
128:61 129:134 130:24 131:48 132:11 133:3
134:119 135:8 136:243 137:91 138:150 139:58
140:174 141:120 142:83 143:37 144:144 145:13
146:174 147:138 148:206 149:92 150:40 151:95
152:268 153:34 154:14 155:99 156:77 157:124
158:69 159:126 160:18 161:68 162:154 163:99
164:274 165:129 166:229 167:172 168:126 169:58
170:356 171:2 192:5508 193:2412 194:2110 195:963
196:434 198:3707 199:3236 200:2527 202:3197 203:4603
204:3271 205:2170 206:2569 207:2718 208:2666 209:2745
210:590 211:224 212:904 213:637 214:9 215:19
216:3025 217:461 218:40 219:41
End of report
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