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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 Thu 21 Feb, 2002
Analysis Summary
----------------
BGP routing table entries examined: 108406
Prefixes after maximum aggregation: 71970
Unique aggregates announced to Internet: 51584
Total ASes present in the Internet Routing Table: 12581
Origin-only ASes present in the Internet Routing Table: 10900
Origin ASes announcing only one prefix: 4763
Transit ASes present in the Internet Routing Table: 1681
Transit-only ASes present in the Internet Routing Table: 57
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: 3
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: 1174543500
Equivalent to 70 /8s, 2 /16s and 28 /24s
Percentage of available address space announced: 31.7
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 72280
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17518
Total APNIC prefixes after maximum aggregation: 10646
Prefixes being announced from the APNIC address blocks: 16078
Unique aggregates announced from the APNIC address blocks: 9878
APNIC Region origin ASes present in the Internet Routing Table: 1450
APNIC Region origin ASes announcing only one prefix: 484
APNIC Region transit ASes present in the Internet Routing Table: 250
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 79678784
Equivalent to 4 /8s, 191 /16s and 205 /24s
Percentage of available APNIC address space announced: 58.9
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: 72855
Total ARIN prefixes after maximum aggregation: 47279
Prefixes being announced from the ARIN address blocks: 51376
Unique aggregates announced from the ARIN address blocks: 16051
ARIN Region origin ASes present in the Internet Routing Table: 7442
ARIN Region origin ASes announcing only one prefix: 2315
ARIN Region transit ASes present in the Internet Routing Table: 762
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 195730500
Equivalent to 11 /8s, 170 /16s and 156 /24s
Percentage of available ARIN address space announced: 72.9
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: 18033
Total RIPE prefixes after maximum aggregation: 14045
Prefixes being announced from the RIPE address blocks: 14854
Unique aggregates announced from the RIPE address blocks: 10001
RIPE Region origin ASes present in the Internet Routing Table: 3631
RIPE Region origin ASes announcing only one prefix: 1964
RIPE Region transit ASes present in the Internet Routing Table: 655
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 106892416
Equivalent to 6 /8s, 95 /16s and 12 /24s
Percentage of available RIPE address space announced: 70.8
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 1310 1257 958 Telstra Pty Ltd
4538 454 1162 16 China Education and Research
703 401 359 310 UUNET Technologies, Inc.
2907 400 1942 366 SINET Japan
2764 389 361 364 connect.com.au pty ltd
7474 300 289 203 Optus Communications Pty Ltd
4755 291 111 89 Videsh Sanchar Nigam Ltd. Aut
4134 270 1874 98 Data Communications Bureau
9394 254 112 3 CHINA RAILWAY Internet(CRNET)
17557 229 17 97 Pakistan Telecom
4766 213 1392 151 Korea Internet Exchange for "
7539 160 204 154 TANet2, sponsored by NSC, TAI
9443 160 44 58 Primus Telecommunications
9768 146 385 88 Korea Telecom
4804 144 84 68 Microplex PTY LTD
9583 139 32 5 Satyam Infoway Ltd.,
7657 122 22 85 The Internet Group Limited
4713 117 914 103 NTT Communications Corporatio
4780 117 186 40 Digital United Inc.
17676 115 1840 17 XTAGE CORPORATION
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1060 2599 852 UUNET Technologies, Inc.
3301 399 924 351 TeliaNet Sweden
1257 255 487 246 SWIPnet Swedish IP Network
3215 238 570 155 France Telecom / &Equant
680 232 2147 230 DFN-IP service G-WiN
5515 217 713 174 Sonera Finland Autonomous Sys
5400 197 82 93 Concert European Core Network
3320 196 1964 172 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
719 167 305 121 LANLINK autonomous system
8708 161 22 146 Romania Data Systems S.A.
2856 131 790 120 BTnet UK Regional network
3303 123 577 123 Swisscom Ltd
3269 117 693 71 TELECOM ITALIA
8297 116 40 65 Teleglobe Autonomous System i
12302 114 7 35 MobiFon S.A.
517 100 226 98 KPNQwest Germany GmbH
2874 96 101 35 Global One Services AB
5536 93 13 25 Internet Egypt Network
2830 92 210 73 UUNET Dual-Homed customers
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2106 8460 1503 UUNET Technologies, Inc.
7018 1232 7514 930 AT&T
3908 831 1677 481 Supernet, Inc.
1 823 8102 596 BBN Planet
1239 801 3340 617 Sprint
4323 654 433 243 Time Warner Communications, I
7046 638 852 427 UUNET Technologies, Inc.
852 614 1125 410 Telus Advanced Communications
209 536 1973 306 Qwest
7132 456 510 164 Southwestern Bell Internet Se
2914 454 2193 422 Verio, Inc.
3549 447 823 232 Global Crossing
690 437 66 283 Merit Network
705 387 114 275 UUNET Technologies, Inc.
577 356 588 221 Bell Advanced Communications
2149 352 175 293 Performance Systems, Inc.
3561 347 2202 308 Cable & Wireless USA
7843 344 292 58 Adelphia Corp.
3741 343 730 234 The Internet Solution
2386 330 354 188 AT&T Data Communications Serv
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 454 438 China Education and Research
4323 654 411 Time Warner Communications, I
1221 1310 352 Telstra Pty Ltd
3908 831 350 Supernet, Inc.
7018 1232 302 AT&T
7132 456 292 Southwestern Bell Internet Se
4151 305 289 USDA
7843 344 286 Adelphia Corp.
6198 307 274 BellSouth Network Solutions,
11371 278 271 Rhythms NetConnections
9394 254 251 CHINA RAILWAY Internet(CRNET)
6347 316 238 SAVVIS Communications Corpora
209 536 230 Qwest
1 823 227 BBN Planet
3549 447 215 Global Crossing
7046 638 211 UUNET Technologies, Inc.
702 1060 208 UUNET Technologies, Inc.
852 614 204 Telus Advanced Communications
4355 243 204 EarthLink, Inc.
7029 219 204 Alltel Information Services,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
23238 UNALLOCATED 65.217.101.0/24 701 UUNET Technologies,
1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p
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.
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
189.186.184.0/24 4471 Michigan Internet Cooperative
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 /8:20 /9:6 /10:8 /11:12 /12:37
/13:91 /14:233 /15:395 /16:7145 /17:1431 /18:2523
/19:7390 /20:6763 /21:4809 /22:7289 /23:8919 /24:60379
/25:222 /26:261 /27:124 /28:87 /29:91 /30:131
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1351 2106 UUNET Technologies, Inc.
1221 1164 1310 Telstra Pty Ltd
702 688 1060 UUNET Technologies, Inc.
7018 644 1232 AT&T
3908 585 831 Supernet, Inc.
4323 534 654 Time Warner Communications, I
1239 469 801 Sprint
7046 455 638 UUNET Technologies, Inc.
690 433 437 Merit Network
1 424 823 BBN Planet
852 372 614 Telus Advanced Communications
209 354 536 Qwest
2764 345 389 connect.com.au pty ltd
705 333 387 UUNET Technologies, Inc.
703 324 401 UUNET Technologies, Inc.
3549 313 447 Global Crossing
6197 275 326 BellSouth Network Solutions,
7066 275 304 Virginia Polytechnic Institut
11371 272 278 Rhythms NetConnections
2149 267 352 Performance Systems, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:1 9:1 12:484 13:10 15:1
17:5 20:5 24:753 25:1 32:68 38:9
40:6 44:1 57:14 61:233 62:172 63:1891
64:1117 65:1037 66:703 67:33 68:8 80:201
81:4 128:62 129:123 130:21 131:57 132:11
133:3 134:128 135:10 136:245 137:101 138:148
139:47 140:183 141:61 142:83 143:37 144:152
145:12 146:216 147:156 148:146 149:91 150:40
151:45 152:300 153:32 154:5 155:83 156:75
157:121 158:81 159:88 160:23 161:55 162:117
163:114 164:69 165:121 166:222 167:181 168:116
169:51 170:291 171:2 189:1 192:5438 193:2170
194:2046 195:788 196:443 198:3738 199:3245 200:2320
201:1 202:2992 203:4495 204:3304 205:2179 206:2518
207:2603 208:2575 209:2828 210:538 211:169 212:904
213:556 214:9 215:18 216:2961 217:446 218:10
End of report
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