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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 Wed 12 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113681
Prefixes after maximum aggregation: 73312
Unique aggregates announced to Internet: 52624
Total ASes present in the Internet Routing Table: 13221
Origin-only ASes present in the Internet Routing Table: 11465
Origin ASes announcing only one prefix: 5031
Transit ASes present in the Internet Routing Table: 1756
Transit-only ASes present in the Internet Routing Table: 51
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: 1196904140
Equivalent to 71 /8s, 87 /16s and 78 /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: 46231
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18422
Total APNIC prefixes after maximum aggregation: 11035
Prefixes being announced from the APNIC address blocks: 16886
Unique aggregates announced from the APNIC address blocks: 9825
APNIC Region origin ASes present in the Internet Routing Table: 1534
APNIC Region origin ASes announcing only one prefix: 497
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: 12
Number of APNIC addresses announced to Internet: 90188640
Equivalent to 5 /8s, 96 /16s and 43 /24s
Percentage of available APNIC address space announced: 66.7
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: 76022
Total ARIN prefixes after maximum aggregation: 47764
Prefixes being announced from the ARIN address blocks: 54185
Unique aggregates announced from the ARIN address blocks: 16692
ARIN Region origin ASes present in the Internet Routing Table: 7799
ARIN Region origin ASes announcing only one prefix: 2482
ARIN Region transit ASes present in the Internet Routing Table: 765
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 193291588
Equivalent to 11 /8s, 133 /16s and 101 /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: 19237
Total RIPE prefixes after maximum aggregation: 14513
Prefixes being announced from the RIPE address blocks: 15910
Unique aggregates announced from the RIPE address blocks: 10544
RIPE Region origin ASes present in the Internet Routing Table: 3837
RIPE Region origin ASes announcing only one prefix: 2052
RIPE Region transit ASes present in the Internet Routing Table: 703
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 110456352
Equivalent to 6 /8s, 149 /16s and 110 /24s
Percentage of available RIPE address space announced: 73.2
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 1259 1222 902 Telstra Pty Ltd
4538 472 1258 18 China Education and Research
703 410 350 328 UUNET Technologies, Inc.
2907 386 1876 359 SINET Japan
2764 375 359 342 connect.com.au pty ltd
7474 312 292 209 Optus Communications Pty Ltd
17557 295 20 114 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 197 79 14 China Telecom (Group) - Beiji
4713 183 1009 106 NTT Communications Corporatio
9583 172 32 5 Satyam Infoway Ltd.,
7539 150 186 145 TANet2, sponsored by NSC, TAI
9768 146 386 75 Korea Telecom
17676 146 2258 23 XTAGE CORPORATION
7657 138 22 87 The Internet Group Limited
9800 115 187 23 CHINA UNICOM
4780 112 186 39 Digital United Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1024 2620 848 UUNET Technologies, Inc.
3301 397 908 348 TeliaNet Sweden
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 231 1947 184 Deutsche Telekom AG
5515 219 783 175 Sonera Finland Autonomous Sys
1257 203 430 200 SWIPnet Swedish IP Network
5400 203 83 94 Concert European Core Network
719 191 306 129 LANLINK autonomous system
786 179 1873 178 The JANET IP Service
8708 140 23 138 Romania Data Systems S.A.
2856 125 789 115 BTnet UK Regional network
12302 121 9 28 MobiFon S.A.
3303 119 546 118 Swisscom Ltd
8297 114 57 65 Teleglobe Autonomous System i
3269 113 692 70 TELECOM ITALIA
3246 107 284 101 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 2002 9085 1408 UUNET Technologies, Inc.
7018 1292 7548 937 AT&T
3908 909 1643 494 Supernet, Inc.
1239 816 3413 651 Sprint
852 797 1191 446 Telus Advanced Communications
705 791 175 273 UUNET Technologies, Inc.
1 701 8148 448 GENUITY
4323 628 436 257 Time Warner Communications, I
7046 611 851 405 UUNET Technologies, Inc.
209 606 1973 338 Qwest
690 587 81 375 Merit Network
7132 572 609 136 Southwestern Bell Internet Se
7843 524 369 75 Adelphia Corp.
3549 492 857 323 Global Crossing
7066 475 202 248 Virginia Polytechnic Institut
2914 398 2108 389 Verio, Inc.
15290 386 299 200 AT&T Canada IES
6197 344 246 169 BellSouth Network Solutions,
3741 341 731 236 The Internet Solution
2149 340 190 281 Performance Systems, Inc.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
705 791 518 UUNET Technologies, Inc.
4538 472 454 China Education and Research
7843 524 449 Adelphia Corp.
7132 572 436 Southwestern Bell Internet Se
3908 909 415 Supernet, Inc.
4323 628 371 Time Warner Communications, I
1221 1259 357 Telstra Pty Ltd
7018 1292 355 AT&T
852 797 351 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 286 270 USDA
209 606 268 Qwest
6347 338 260 SAVVIS Communications Corpora
1 701 253 GENUITY
3352 278 251 Ibernet, Internet Access Netw
7029 263 248 Alltel Information Services,
4355 285 242 EarthLink, Inc.
7066 475 227 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 /16:7231 /17:1448 /18:2610
/19:7616 /20:7227 /21:5101 /22:7830 /23:9535 /24:63536
/25:204 /26:184 /27:83 /28:86 /29:49 /30:86
/31:1 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 630 1024 UUNET Technologies, Inc.
705 585 791 UUNET Technologies, Inc.
701 567 2002 UUNET Technologies, Inc.
3908 495 909 Supernet, Inc.
690 465 587 Merit Network
7066 380 475 Virginia Polytechnic Institut
7018 341 1292 AT&T
7843 316 524 Adelphia Corp.
209 274 606 Qwest
7046 258 611 UUNET Technologies, Inc.
7029 248 263 Alltel Information Services,
6197 247 344 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 238 397 TeliaNet Sweden
6198 233 320 BellSouth Network Solutions,
18566 219 223 Covad Communications
6517 218 240 Yipes Communications, Inc.
1239 210 816 Sprint
1580 203 233 HQ, 5th Signal Command
3352 201 278 Ibernet, Internet Access Netw
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:507 13:10 15:2 17:6
20:2 24:780 25:1 32:41 38:8 40:6
44:1 57:13 61:264 62:201 63:1944 64:1238
65:1643 66:938 67:85 68:160 80:241 81:27
128:61 129:137 130:24 131:48 132:11 133:3
134:119 135:8 136:243 137:92 138:150 139:58
140:174 141:120 142:83 143:37 144:151 145:13
146:174 147:138 148:208 149:92 150:40 151:97
152:271 153:34 154:14 155:99 156:77 157:125
158:69 159:126 160:18 161:68 162:154 163:99
164:273 165:129 166:229 167:172 168:129 169:58
170:356 171:2 192:5504 193:2397 194:2065 195:961
196:430 198:3703 199:3235 200:2522 202:3199 203:4604
204:3269 205:2174 206:2568 207:2682 208:2661 209:2697
210:590 211:224 212:920 213:639 214:9 215:19
216:3019 217:459 218:40 219:41
End of report
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