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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 Feb, 2002
Analysis Summary
----------------
BGP routing table entries examined: 108601
Prefixes after maximum aggregation: 71958
Unique aggregates announced to Internet: 51833
Total ASes present in the Internet Routing Table: 12603
Origin-only ASes present in the Internet Routing Table: 10905
Origin ASes announcing only one prefix: 4797
Transit ASes present in the Internet Routing Table: 1698
Transit-only ASes present in the Internet Routing Table: 58
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 15
Number of addresses announced to Internet: 1173831112
Equivalent to 69 /8s, 247 /16s and 61 /24s
Percentage of available address space announced: 31.7
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 72432
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17417
Total APNIC prefixes after maximum aggregation: 10538
Prefixes being announced from the APNIC address blocks: 15974
Unique aggregates announced from the APNIC address blocks: 9830
APNIC Region origin ASes present in the Internet Routing Table: 1442
APNIC Region origin ASes announcing only one prefix: 491
APNIC Region transit ASes present in the Internet Routing Table: 257
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 79711808
Equivalent to 4 /8s, 192 /16s and 78 /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: 73067
Total ARIN prefixes after maximum aggregation: 47377
Prefixes being announced from the ARIN address blocks: 51520
Unique aggregates announced from the ARIN address blocks: 16328
ARIN Region origin ASes present in the Internet Routing Table: 7459
ARIN Region origin ASes announcing only one prefix: 2333
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: 194754948
Equivalent to 11 /8s, 155 /16s and 185 /24s
Percentage of available ARIN address space announced: 72.6
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: 18117
Total RIPE prefixes after maximum aggregation: 14043
Prefixes being announced from the RIPE address blocks: 14892
Unique aggregates announced from the RIPE address blocks: 10009
RIPE Region origin ASes present in the Internet Routing Table: 3643
RIPE Region origin ASes announcing only one prefix: 1973
RIPE Region transit ASes present in the Internet Routing Table: 660
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 106917248
Equivalent to 6 /8s, 95 /16s and 109 /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 1245 962 Telstra Pty Ltd
4538 454 1162 16 China Education and Research
703 402 359 311 UUNET Technologies, Inc.
2907 399 1942 365 SINET Japan
2764 387 361 362 connect.com.au pty ltd
7474 299 289 203 Optus Communications Pty Ltd
4755 293 111 86 Videsh Sanchar Nigam Ltd. Aut
4134 270 1874 98 Data Communications Bureau
9394 253 112 3 CHINA RAILWAY Internet(CRNET)
17557 225 17 96 Pakistan Telecom
4766 213 1392 151 Korea Internet Exchange for "
9443 162 44 60 Primus Telecommunications
7539 161 220 154 TANet2, sponsored by NSC, TAI
9768 146 385 88 Korea Telecom
4804 144 84 68 Microplex PTY LTD
9583 141 32 5 Satyam Infoway Ltd.,
7657 122 22 85 The Internet Group Limited
4780 120 186 40 Digital United Inc.
4713 117 914 103 NTT Communications Corporatio
17676 115 1840 17 XTAGE CORPORATION
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1061 2632 854 UUNET Technologies, Inc.
3301 397 924 351 TeliaNet Sweden
1257 247 487 243 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 159 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 113 7 34 MobiFon S.A.
517 100 226 98 KPNQwest Germany GmbH
5536 98 13 25 Internet Egypt Network
2874 95 100 35 Global One Services AB
2830 92 210 73 UUNET Dual-Homed customers
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2152 8480 1516 UUNET Technologies, Inc.
7018 1237 7495 932 AT&T
3908 835 1661 481 Supernet, Inc.
1 822 8087 597 BBN Planet
1239 803 3332 619 Sprint
4323 659 434 258 Time Warner Communications, I
7046 647 853 425 UUNET Technologies, Inc.
852 616 1119 409 Telus Advanced Communications
209 540 1974 310 Qwest
3549 458 823 234 Global Crossing
7132 455 510 164 Southwestern Bell Internet Se
2914 452 2192 420 Verio, Inc.
690 437 66 283 Merit Network
7843 377 298 47 Adelphia Corp.
705 373 114 263 UUNET Technologies, Inc.
2149 372 208 310 Performance Systems, Inc.
577 353 588 221 Bell Advanced Communications
3561 344 2188 305 Cable & Wireless USA
3741 343 730 234 The Internet Solution
2386 333 355 190 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 659 401 Time Warner Communications, I
3908 835 354 Supernet, Inc.
1221 1310 348 Telstra Pty Ltd
7843 377 330 Adelphia Corp.
7018 1237 305 AT&T
7132 455 291 Southwestern Bell Internet Se
4151 305 289 USDA
6198 307 274 BellSouth Network Solutions,
11371 278 272 Rhythms NetConnections
9394 253 250 CHINA RAILWAY Internet(CRNET)
6347 315 237 SAVVIS Communications Corpora
209 540 230 Qwest
7029 244 229 Alltel Information Services,
1 822 225 BBN Planet
3549 458 224 Global Crossing
7046 647 222 UUNET Technologies, Inc.
702 1061 207 UUNET Technologies, Inc.
852 616 207 Telus Advanced Communications
4755 293 207 Videsh Sanchar Nigam Ltd. Aut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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.
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
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 /8:19 /9:6 /10:8 /11:12 /12:37
/13:91 /14:233 /15:396 /16:7148 /17:1438 /18:2556
/19:7366 /20:6788 /21:4806 /22:7298 /23:8910 /24:60552
/25:216 /26:255 /27:121 /28:86 /29:91 /30:128
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1389 2152 UUNET Technologies, Inc.
1221 1165 1310 Telstra Pty Ltd
702 684 1061 UUNET Technologies, Inc.
7018 654 1237 AT&T
3908 590 835 Supernet, Inc.
4323 537 659 Time Warner Communications, I
1239 471 803 Sprint
7046 463 647 UUNET Technologies, Inc.
690 433 437 Merit Network
1 426 822 BBN Planet
852 372 616 Telus Advanced Communications
209 358 540 Qwest
2764 343 387 connect.com.au pty ltd
703 324 402 UUNET Technologies, Inc.
3549 324 458 Global Crossing
705 320 373 UUNET Technologies, Inc.
2149 281 372 Performance Systems, Inc.
6197 275 326 BellSouth Network Solutions,
7066 273 302 Virginia Polytechnic Institut
11371 272 278 Rhythms NetConnections
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 9:1 12:489 13:10 15:1 17:5
20:2 24:781 25:1 32:68 38:9 40:6
44:1 57:14 61:230 62:170 63:1884 64:1118
65:1037 66:714 67:33 68:7 80:207 81:5
128:62 129:123 130:21 131:57 132:11 133:3
134:128 135:10 136:248 137:101 138:148 139:47
140:175 141:62 142:88 143:37 144:143 145:12
146:216 147:156 148:147 149:92 150:41 151:45
152:351 153:32 154:7 155:85 156:75 157:121
158:78 159:115 160:23 161:55 162:139 163:114
164:74 165:121 166:225 167:184 168:119 169:51
170:288 171:2 189:1 192:5433 193:2166 194:2049
195:793 196:440 198:3744 199:3249 200:2336 201:1
202:2920 203:4489 204:3328 205:2170 206:2529 207:2626
208:2571 209:2812 210:547 211:195 212:894 213:567
214:9 215:18 216:2974 217:453 218:12
End of report
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