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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 Mon 25 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 109918
Prefixes after maximum aggregation: 72132
Unique aggregates announced to Internet: 52271
Total ASes present in the Internet Routing Table: 12803
Origin-only ASes present in the Internet Routing Table: 11086
Origin ASes announcing only one prefix: 4860
Transit ASes present in the Internet Routing Table: 1717
Transit-only ASes present in the Internet Routing Table: 53
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 19
Illegal AS announcements present in the Routing Table: 6
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 14
Number of addresses announced to Internet: 1168897128
Equivalent to 69 /8s, 171 /16s and 244 /24s
Percentage of available address space announced: 31.5
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 73573
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18077
Total APNIC prefixes after maximum aggregation: 10664
Prefixes being announced from the APNIC address blocks: 16569
Unique aggregates announced from the APNIC address blocks: 10031
APNIC Region origin ASes present in the Internet Routing Table: 1467
APNIC Region origin ASes announcing only one prefix: 478
APNIC Region transit ASes present in the Internet Routing Table: 259
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 82118720
Equivalent to 4 /8s, 229 /16s and 8 /24s
Percentage of available APNIC address space announced: 60.7
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: 73386
Total ARIN prefixes after maximum aggregation: 47291
Prefixes being announced from the ARIN address blocks: 51831
Unique aggregates announced from the ARIN address blocks: 16333
ARIN Region origin ASes present in the Internet Routing Table: 7581
ARIN Region origin ASes announcing only one prefix: 2385
ARIN Region transit ASes present in the Internet Routing Table: 770
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 190266564
Equivalent to 11 /8s, 87 /16s and 60 /24s
Percentage of available ARIN address space announced: 70.9
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
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: 18451
Total RIPE prefixes after maximum aggregation: 14177
Prefixes being announced from the RIPE address blocks: 15174
Unique aggregates announced from the RIPE address blocks: 10093
RIPE Region origin ASes present in the Internet Routing Table: 3701
RIPE Region origin ASes announcing only one prefix: 1997
RIPE Region transit ASes present in the Internet Routing Table: 677
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 108010528
Equivalent to 6 /8s, 112 /16s and 28 /24s
Percentage of available RIPE address space announced: 71.5
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 1285 1212 948 Telstra Pty Ltd
4538 462 1194 17 China Education and Research
2907 436 1894 370 SINET Japan
703 410 335 318 UUNET Technologies, Inc.
2764 386 361 361 connect.com.au pty ltd
9394 318 113 4 CHINA RAILWAY Internet(CRNET)
7474 304 290 208 Optus Communications Pty Ltd
4755 290 113 84 Videsh Sanchar Nigam Ltd. Aut
4134 274 1978 96 Data Communications Bureau
17557 255 17 95 Pakistan Telecom
4766 206 1516 146 Korea Internet Exchange for "
9443 186 42 41 Primus Telecommunications
4804 165 84 68 Microplex PTY LTD
7539 165 223 160 TANet2, sponsored by NSC, TAI
9583 148 32 5 Satyam Infoway Ltd.,
9768 138 385 82 Korea Telecom
7657 122 22 85 The Internet Group Limited
4713 120 891 104 NTT Communications Corporatio
17676 119 1904 12 XTAGE CORPORATION
4780 118 186 40 Digital United Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1026 2597 842 UUNET Technologies, Inc.
3301 394 924 349 TeliaNet Sweden
3215 266 586 158 France Telecom / &Equant
5515 261 696 167 Sonera Finland Autonomous Sys
680 232 2149 231 DFN-IP service G-WiN
1257 224 464 220 SWIPnet Swedish IP Network
3320 224 1964 172 Deutsche Telekom AG
5400 199 84 94 Concert European Core Network
786 182 1874 182 The JANET IP Service
719 163 289 118 LANLINK autonomous system
8708 157 23 145 Romania Data Systems S.A.
2856 127 788 116 BTnet UK Regional network
3303 124 565 123 Swisscom Ltd
12302 124 8 45 MobiFon S.A.
3269 117 694 71 TELECOM ITALIA
8297 116 53 67 Teleglobe Autonomous System i
517 103 226 99 KPNQwest Germany GmbH
5511 102 194 91 France Telecom
9051 101 6 25 INCONET Autonomous System
2874 97 100 37 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2084 8397 1453 UUNET Technologies, Inc.
7018 1226 7526 915 AT&T
3908 848 1675 479 Supernet, Inc.
1 814 8124 609 BBN Planet
1239 813 3369 637 Sprint
852 672 5188 411 Telus Advanced Communications
4323 625 436 253 Time Warner Communications, I
7046 606 834 393 UUNET Technologies, Inc.
209 555 1992 319 Qwest
7132 518 545 158 Southwestern Bell Internet Se
3549 505 845 260 Global Crossing
690 462 69 305 Merit Network
2914 413 2169 410 Verio, Inc.
7843 398 314 48 Adelphia Corp.
705 375 115 267 UUNET Technologies, Inc.
2149 371 224 309 Performance Systems, Inc.
3741 343 731 233 The Internet Solution
6197 330 217 171 BellSouth Network Solutions,
3561 323 2152 290 Cable & Wireless USA
6347 320 370 78 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 462 445 China Education and Research
4323 625 372 Time Warner Communications, I
3908 848 369 Supernet, Inc.
7132 518 360 Southwestern Bell Internet Se
7843 398 350 Adelphia Corp.
1221 1285 337 Telstra Pty Ltd
9394 318 314 CHINA RAILWAY Internet(CRNET)
7018 1226 311 AT&T
4151 307 291 USDA
6198 310 279 BellSouth Network Solutions,
11371 277 271 Rhythms NetConnections
852 672 261 Telus Advanced Communications
3549 505 245 Global Crossing
6347 320 242 SAVVIS Communications Corpora
209 555 236 Qwest
7029 247 232 Alltel Information Services,
7046 606 213 UUNET Technologies, Inc.
4755 290 206 Videsh Sanchar Nigam Ltd. Aut
1 814 205 BBN Planet
4355 242 205 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
112 UNALLOCATED 192.175.48.0/24 3557 Vixie Enterprises
65535 PRIVATE 198.93.230.0/24 3550 Ateneo de Manila Uni
65535 PRIVATE 198.93.231.0/24 3550 Ateneo de Manila Uni
65535 PRIVATE 198.94.168.0/24 3550 Ateneo de Manila Uni
65535 PRIVATE 198.94.169.0/24 3550 Ateneo de Manila Uni
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
96.0.0.0/20 3549 Global Crossing
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
144.7.0.0/16 701 UUNET Technologies, Inc.
153.36.0.0/14 701 UUNET Technologies, Inc.
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.235.0.0/16 6025 US DOD NIC Unregistered
201.115.100.0/24 7018 AT&T
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:5 /10:8 /11:14 /12:35
/13:88 /14:229 /15:404 /16:7187 /17:1393 /18:2554
/19:7422 /20:6929 /21:4943 /22:7520 /23:9115 /24:61080
/25:222 /26:259 /27:116 /28:101 /29:102 /30:134
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1347 2084 UUNET Technologies, Inc.
1221 1143 1285 Telstra Pty Ltd
702 650 1026 UUNET Technologies, Inc.
7018 644 1226 AT&T
3908 580 848 Supernet, Inc.
4323 495 625 Time Warner Communications, I
1239 470 813 Sprint
690 457 462 Merit Network
852 425 672 Telus Advanced Communications
7046 421 606 UUNET Technologies, Inc.
1 406 814 BBN Planet
3549 366 505 Global Crossing
209 365 555 Qwest
2764 342 386 connect.com.au pty ltd
703 331 410 UUNET Technologies, Inc.
705 322 375 UUNET Technologies, Inc.
9394 304 318 CHINA RAILWAY Internet(CRNET)
7066 289 318 Virginia Polytechnic Institut
2149 285 371 Performance Systems, Inc.
6197 279 330 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 9:1 12:476 13:10 15:2 17:5
20:2 24:739 25:1 32:68 38:9 40:6
44:1 57:14 61:303 62:169 63:1901 64:1176
65:1104 66:806 67:53 68:3 80:224 81:6
128:64 129:131 130:23 131:56 132:11 133:3
134:127 135:10 136:285 137:101 138:148 139:49
140:187 141:90 142:84 143:38 144:142 145:11
146:221 147:147 148:136 149:92 150:39 151:50
152:329 153:33 154:5 155:90 156:75 157:119
158:72 159:125 160:27 161:55 162:141 163:103
164:116 165:123 166:223 167:192 168:90 169:51
170:291 171:2 192:5441 193:2236 194:2095 195:789
196:427 198:3728 199:3193 200:2355 201:1 202:3090
203:4534 204:3269 205:2130 206:2482 207:2596 208:2571
209:2786 210:572 211:203 212:859 213:595 214:9
215:19 216:3038 217:461 218:14
End of report
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