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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 Sat 29 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113526
Prefixes after maximum aggregation: 73611
Unique aggregates announced to Internet: 54228
Total ASes present in the Internet Routing Table: 13301
Origin-only ASes present in the Internet Routing Table: 11514
Origin ASes announcing only one prefix: 5100
Transit ASes present in the Internet Routing Table: 1787
Transit-only ASes present in the Internet Routing Table: 49
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 36
Number of addresses announced to Internet: 1194781916
Equivalent to 71 /8s, 54 /16s and 236 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45972
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18547
Total APNIC prefixes after maximum aggregation: 11053
Prefixes being announced from the APNIC address blocks: 17031
Unique aggregates announced from the APNIC address blocks: 10443
APNIC Region origin ASes present in the Internet Routing Table: 1544
APNIC Region origin ASes announcing only one prefix: 503
APNIC Region transit ASes present in the Internet Routing Table: 275
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 87514976
Equivalent to 5 /8s, 55 /16s and 95 /24s
Percentage of available APNIC address space announced: 64.7
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: 75724
Total ARIN prefixes after maximum aggregation: 47967
Prefixes being announced from the ARIN address blocks: 53880
Unique aggregates announced from the ARIN address blocks: 17645
ARIN Region origin ASes present in the Internet Routing Table: 7830
ARIN Region origin ASes announcing only one prefix: 2508
ARIN Region transit ASes present in the Internet Routing Table: 771
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 192483924
Equivalent to 11 /8s, 121 /16s and 18 /24s
Percentage of available ARIN address space announced: 71.7
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: 19253
Total RIPE prefixes after maximum aggregation: 14591
Prefixes being announced from the RIPE address blocks: 15948
Unique aggregates announced from the RIPE address blocks: 10589
RIPE Region origin ASes present in the Internet Routing Table: 3879
RIPE Region origin ASes announcing only one prefix: 2089
RIPE Region transit ASes present in the Internet Routing Table: 724
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 111969056
Equivalent to 6 /8s, 172 /16s and 131 /24s
Percentage of available RIPE address space announced: 74.2
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 1263 1222 904 Telstra Pty Ltd
4538 442 1194 16 China Education and Research
703 400 357 318 UUNET Technologies, Inc.
2764 369 359 338 connect.com.au pty ltd
2907 365 1864 339 SINET Japan
7474 313 292 208 Optus Communications Pty Ltd
17557 291 19 113 Pakistan Telecom
4134 289 2114 105 Data Communications Bureau
4755 277 117 82 Videsh Sanchar Nigam Ltd. Aut
9443 252 45 66 Primus Telecommunications
4713 225 1005 105 NTT Communications Corporatio
4766 216 1504 154 Korea Internet Exchange for "
4814 201 79 14 China Telecom (Group) - Beiji
9583 177 32 5 Satyam Infoway Ltd.,
7539 152 202 147 TANet2, sponsored by NSC, TAI
17676 152 2354 23 XTAGE CORPORATION
9768 145 386 74 Korea Telecom
7657 139 22 88 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4621 112 11 61 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1018 2615 841 UUNET Technologies, Inc.
3301 402 925 351 TeliaNet Sweden
3352 277 535 26 Ibernet, Internet Access Netw
3215 267 614 166 France Telecom / &Equant
3320 241 1947 193 Deutsche Telekom AG
680 233 2149 230 DFN-IP service G-WiN
5515 206 783 172 Sonera Finland Autonomous Sys
5400 205 83 94 Concert European Core Network
1257 203 430 200 SWIPnet Swedish IP Network
719 191 306 129 LANLINK autonomous system
786 177 1857 176 The JANET IP Service
8708 139 23 136 Romania Data Systems S.A.
3303 136 546 135 Swisscom Ltd
12302 127 18 39 MobiFon S.A.
2856 126 786 116 BTnet UK Regional network
3269 111 690 68 TELECOM ITALIA
3246 110 301 105 Song Networks / Clinet
5511 109 192 88 France Telecom
8297 105 52 58 Teleglobe Autonomous System i
2874 102 85 39 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1860 9258 1385 UUNET Technologies, Inc.
7018 1295 7469 932 AT&T
3908 918 1643 498 Supernet, Inc.
1239 820 3345 646 Sprint
1 701 8131 452 GENUITY
852 682 1173 448 Telus Advanced Communications
4323 632 438 259 Time Warner Communications, I
209 613 2003 350 Qwest
7843 609 355 242 Adelphia Corp.
7046 587 876 374 UUNET Technologies, Inc.
7132 579 659 133 Southwestern Bell Internet Se
690 511 75 317 Merit Network
7029 478 167 58 Alltel Information Services,
7066 477 202 250 Virginia Polytechnic Institut
2149 455 197 347 Performance Systems, Inc.
3549 439 836 314 Global Crossing
2914 390 2100 383 Verio, Inc.
15290 381 297 196 AT&T Canada IES
6197 347 248 169 BellSouth Network Solutions,
6347 342 370 80 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 579 446 Southwestern Bell Internet Se
4538 442 426 China Education and Research
3908 918 420 Supernet, Inc.
7029 478 420 Alltel Information Services,
4323 632 373 Time Warner Communications, I
7843 609 367 Adelphia Corp.
7018 1295 363 AT&T
1221 1263 359 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 289 273 USDA
209 613 263 Qwest
6347 342 262 SAVVIS Communications Corpora
4355 306 253 EarthLink, Inc.
3352 277 251 Ibernet, Internet Access Netw
1 701 249 GENUITY
852 682 234 Telus Advanced Communications
7066 477 227 Virginia Polytechnic Institut
4454 248 225 OIR Telecommunications, State
18566 228 224 Covad Communications
6198 324 219 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65111 PRIVATE 64.200.152.0/23 7911 Williams Communicati
65111 PRIVATE 64.200.154.0/23 7911 Williams Communicati
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
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
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.5.154.0/24 16588 Spider Web Hosting Solutions
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.
192.83.16.0/20 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 /11:12 /12:36
/13:87 /14:232 /15:417 /16:7235 /17:1447 /18:2631
/19:7690 /20:7309 /21:5138 /22:7872 /23:9620 /24:63093
/25:188 /26:169 /27:78 /28:83 /29:45 /30:84
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 626 1018 UUNET Technologies, Inc.
701 511 1860 UUNET Technologies, Inc.
3908 505 918 Supernet, Inc.
690 452 511 Merit Network
7843 419 609 Adelphia Corp.
7066 382 477 Virginia Polytechnic Institut
7029 376 478 Alltel Information Services,
7018 353 1295 AT&T
209 270 613 Qwest
6197 249 347 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 238 402 TeliaNet Sweden
6198 237 324 BellSouth Network Solutions,
7046 230 587 UUNET Technologies, Inc.
18566 224 228 Covad Communications
6517 213 235 Yipes Communications, Inc.
1580 204 234 HQ, 5th Signal Command
1239 203 820 Sprint
3352 201 277 Ibernet, Internet Access Netw
3215 200 267 France Telecom / &Equant
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:503 13:10 15:2 17:6
20:2 24:798 25:1 32:41 38:9 40:6
44:1 57:13 61:269 62:216 63:1906 64:1246
65:1404 66:998 67:89 68:48 80:260 81:30
128:60 129:133 130:22 131:48 132:11 133:3
134:120 135:8 136:245 137:88 138:154 139:69
140:175 141:122 142:83 143:40 144:153 145:14
146:179 147:138 148:223 149:90 150:40 151:67
152:261 153:33 154:14 155:106 156:77 157:127
158:69 159:128 160:18 161:69 162:214 163:98
164:269 165:134 166:223 167:172 168:131 169:61
170:357 171:3 192:5487 193:2357 194:2073 195:936
196:395 198:3658 199:3195 200:2554 202:3249 203:4648
204:3260 205:2191 206:2682 207:2570 208:2672 209:2649
210:584 211:226 212:900 213:643 214:9 215:19
216:2837 217:463 218:44 219:81
End of report
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