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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 30 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 110454
Prefixes after maximum aggregation: 72225
Unique aggregates announced to Internet: 53534
Total ASes present in the Internet Routing Table: 12822
Origin-only ASes present in the Internet Routing Table: 11101
Origin ASes announcing only one prefix: 4866
Transit ASes present in the Internet Routing Table: 1721
Transit-only ASes present in the Internet Routing Table: 55
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 11
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: 1162173672
Equivalent to 69 /8s, 69 /16s and 92 /24s
Percentage of available address space announced: 31.4
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 74214
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18287
Total APNIC prefixes after maximum aggregation: 10774
Prefixes being announced from the APNIC address blocks: 16761
Unique aggregates announced from the APNIC address blocks: 10127
APNIC Region origin ASes present in the Internet Routing Table: 1472
APNIC Region origin ASes announcing only one prefix: 477
APNIC Region transit ASes present in the Internet Routing Table: 263
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 82286656
Equivalent to 4 /8s, 231 /16s and 152 /24s
Percentage of available APNIC address space announced: 60.8
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: 73647
Total ARIN prefixes after maximum aggregation: 47236
Prefixes being announced from the ARIN address blocks: 52188
Unique aggregates announced from the ARIN address blocks: 17533
ARIN Region origin ASes present in the Internet Routing Table: 7582
ARIN Region origin ASes announcing only one prefix: 2391
ARIN Region transit ASes present in the Internet Routing Table: 768
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 184075972
Equivalent to 10 /8s, 248 /16s and 198 /24s
Percentage of available ARIN address space announced: 68.6
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: 18514
Total RIPE prefixes after maximum aggregation: 14215
Prefixes being announced from the RIPE address blocks: 15226
Unique aggregates announced from the RIPE address blocks: 10145
RIPE Region origin ASes present in the Internet Routing Table: 3712
RIPE Region origin ASes announcing only one prefix: 1998
RIPE Region transit ASes present in the Internet Routing Table: 675
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 108325664
Equivalent to 6 /8s, 116 /16s and 235 /24s
Percentage of available RIPE address space announced: 71.7
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 1283 1210 943 Telstra Pty Ltd
4538 455 1194 17 China Education and Research
2907 437 1895 371 SINET Japan
703 416 336 324 UUNET Technologies, Inc.
2764 385 361 359 connect.com.au pty ltd
9394 339 113 4 CHINA RAILWAY Internet(CRNET)
7474 312 290 211 Optus Communications Pty Ltd
4755 285 109 81 Videsh Sanchar Nigam Ltd. Aut
4134 276 1978 98 Data Communications Bureau
9443 276 44 64 Primus Telecommunications
17557 259 18 99 Pakistan Telecom
4766 209 1516 147 Korea Internet Exchange for "
7539 168 256 161 TANet2, sponsored by NSC, TAI
4804 164 84 67 Microplex PTY LTD
9583 151 32 5 Satyam Infoway Ltd.,
9768 142 385 82 Korea Telecom
4780 129 186 39 Digital United Inc.
7657 122 22 85 The Internet Group Limited
4713 120 891 104 NTT Communications Corporatio
17676 119 1904 12 XTAGE CORPORATION
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1029 2596 844 UUNET Technologies, Inc.
3301 389 923 344 TeliaNet Sweden
3215 266 581 174 France Telecom / &Equant
5515 264 696 169 Sonera Finland Autonomous Sys
680 232 2149 231 DFN-IP service G-WiN
1257 225 472 221 SWIPnet Swedish IP Network
3320 225 1964 173 Deutsche Telekom AG
5400 197 84 94 Concert European Core Network
786 182 1874 182 The JANET IP Service
719 163 289 118 LANLINK autonomous system
8708 160 23 148 Romania Data Systems S.A.
2856 130 788 119 BTnet UK Regional network
12302 125 8 46 MobiFon S.A.
3303 124 565 123 Swisscom Ltd
3269 117 694 71 TELECOM ITALIA
8297 117 53 67 Teleglobe Autonomous System i
5511 103 194 91 France Telecom
517 102 226 98 KPNQwest Germany GmbH
9051 101 6 25 INCONET Autonomous System
2874 96 84 36 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2084 8462 1449 UUNET Technologies, Inc.
7018 1224 7513 915 AT&T
3908 848 1675 479 Supernet, Inc.
1239 812 3371 637 Sprint
1 811 8123 608 BBN Planet
852 629 1112 416 Telus Advanced Communications
4323 629 436 252 Time Warner Communications, I
7046 603 837 374 UUNET Technologies, Inc.
209 557 1993 323 Qwest
7132 522 552 161 Southwestern Bell Internet Se
3549 514 860 264 Global Crossing
690 457 68 300 Merit Network
7843 427 314 48 Adelphia Corp.
2914 419 2163 415 Verio, Inc.
705 374 115 266 UUNET Technologies, Inc.
2149 367 208 305 Performance Systems, Inc.
7066 342 203 251 Virginia Polytechnic Institut
3741 341 731 234 The Internet Solution
6197 332 217 173 BellSouth Network Solutions,
3561 319 2151 286 Cable & Wireless USA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 455 438 China Education and Research
7843 427 379 Adelphia Corp.
4323 629 377 Time Warner Communications, I
3908 848 369 Supernet, Inc.
7132 522 361 Southwestern Bell Internet Se
1221 1283 340 Telstra Pty Ltd
9394 339 335 CHINA RAILWAY Internet(CRNET)
7018 1224 309 AT&T
4151 308 292 USDA
6198 311 280 BellSouth Network Solutions,
4565 312 278 Epoch Networks
11371 277 271 Rhythms NetConnections
3549 514 250 Global Crossing
6347 317 238 SAVVIS Communications Corpora
209 557 234 Qwest
7029 247 232 Alltel Information Services,
7046 603 229 UUNET Technologies, Inc.
852 629 213 Telus Advanced Communications
9443 276 212 Primus Telecommunications
4355 247 211 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
23279 UNALLOCATED 63.238.4.0/24 209 Qwest
64516 PRIVATE 137.164.227.0/24 2150 California State Uni
64516 PRIVATE 137.164.228.0/22 2150 California State Uni
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,
23279 UNALLOCATED 216.207.52.0/24 209 Qwest
23279 UNALLOCATED 216.207.53.0/24 209 Qwest
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 /8:18 /9:5 /10:8 /11:14 /12:35
/13:88 /14:231 /15:400 /16:7171 /17:1398 /18:2571
/19:7440 /20:6911 /21:4950 /22:7575 /23:9146 /24:61504
/25:222 /26:277 /27:118 /28:102 /29:105 /30:128
/31:0 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1360 2084 UUNET Technologies, Inc.
1221 1142 1283 Telstra Pty Ltd
702 654 1029 UUNET Technologies, Inc.
7018 637 1224 AT&T
3908 580 848 Supernet, Inc.
4323 498 629 Time Warner Communications, I
1239 469 812 Sprint
690 452 457 Merit Network
7046 416 603 UUNET Technologies, Inc.
1 405 811 BBN Planet
852 381 629 Telus Advanced Communications
3549 374 514 Global Crossing
209 366 557 Qwest
2764 340 385 connect.com.au pty ltd
703 336 416 UUNET Technologies, Inc.
9394 325 339 CHINA RAILWAY Internet(CRNET)
705 322 374 UUNET Technologies, Inc.
7066 313 342 Virginia Polytechnic Institut
4565 287 312 Epoch Networks
2149 283 367 Performance Systems, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:7 9:1 12:485 13:10 15:2
17:6 20:2 24:756 25:1 32:68 38:8
40:6 44:1 57:14 61:313 62:153 63:1904
64:1193 65:1114 66:783 67:57 68:4 80:223
81:7 128:64 129:129 130:23 131:56 132:11
133:3 134:126 135:10 136:314 137:97 138:137
139:49 140:187 141:90 142:83 143:38 144:140
145:11 146:220 147:146 148:138 149:91 150:39
151:45 152:317 153:33 154:1 155:108 156:76
157:118 158:72 159:125 160:27 161:55 162:141
163:103 164:140 165:122 166:220 167:193 168:100
169:52 170:288 171:2 192:5410 193:2265 194:2090
195:796 196:401 198:3713 199:3198 200:2393 201:1
202:3114 203:4569 204:3255 205:2161 206:2558 207:2669
208:2571 209:2806 210:596 211:209 212:881 213:599
214:9 215:18 216:3086 217:462 218:15
End of report
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