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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 25 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114164
Prefixes after maximum aggregation: 73874
Unique aggregates announced to Internet: 54659
Total ASes present in the Internet Routing Table: 13428
Origin-only ASes present in the Internet Routing Table: 11616
Origin ASes announcing only one prefix: 5136
Transit ASes present in the Internet Routing Table: 1812
Transit-only ASes present in the Internet Routing Table: 48
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 23
Illegal AS announcements present in the Routing Table: 9
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 34
Number of addresses announced to Internet: 1177894872
Equivalent to 70 /8s, 53 /16s and 63 /24s
Percentage of available address space announced: 31.8
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46162
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18994
Total APNIC prefixes after maximum aggregation: 11232
Prefixes being announced from the APNIC address blocks: 17498
Unique aggregates announced from the APNIC address blocks: 10621
APNIC Region origin ASes present in the Internet Routing Table: 1574
APNIC Region origin ASes announcing only one prefix: 510
APNIC Region transit ASes present in the Internet Routing Table: 276
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 89639776
Equivalent to 5 /8s, 87 /16s and 203 /24s
Percentage of available APNIC address space announced: 59.0
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75873
Total ARIN prefixes after maximum aggregation: 48122
Prefixes being announced from the ARIN address blocks: 53912
Unique aggregates announced from the ARIN address blocks: 18015
ARIN Region origin ASes present in the Internet Routing Table: 7898
ARIN Region origin ASes announcing only one prefix: 2516
ARIN Region transit ASes present in the Internet Routing Table: 785
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 189967184
Equivalent to 11 /8s, 82 /16s and 171 /24s
Percentage of available ARIN address space announced: 70.8
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: 19290
Total RIPE prefixes after maximum aggregation: 14520
Prefixes being announced from the RIPE address blocks: 16017
Unique aggregates announced from the RIPE address blocks: 10447
RIPE Region origin ASes present in the Internet Routing Table: 3909
RIPE Region origin ASes announcing only one prefix: 2110
RIPE Region transit ASes present in the Internet Routing Table: 736
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 112829728
Equivalent to 6 /8s, 185 /16s and 165 /24s
Percentage of available RIPE address space announced: 74.7
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 1256 1207 899 Telstra Pty Ltd
4538 559 1278 26 China Education and Research
703 413 360 326 UUNET Technologies, Inc.
2907 361 1848 338 SINET Japan
2764 360 358 331 connect.com.au pty ltd
7474 319 296 213 Optus Communications Pty Ltd
17557 296 20 103 Pakistan Telecom
4755 293 112 77 Videsh Sanchar Nigam Ltd. Aut
4134 292 2140 105 Data Communications Bureau
9443 252 45 67 Primus Telecommunications
4766 249 1506 156 Korea Internet Exchange for "
4814 215 79 14 China Telecom (Group) - Beiji
9583 180 32 5 Satyam Infoway Ltd.,
17676 166 2578 31 XTAGE CORPORATION
9768 143 384 73 Korea Telecom
7657 129 22 88 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4780 122 186 39 Digital United Inc.
7539 120 184 119 TANet2, sponsored by NSC, TAI
4621 115 11 63 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 903 2443 761 UUNET Technologies, Inc.
3301 395 923 345 TeliaNet Sweden
5515 311 783 173 Sonera Finland Autonomous Sys
3215 279 640 176 France Telecom / &Equant
3352 273 531 31 Ibernet, Internet Access Netw
3320 263 1962 202 Deutsche Telekom AG
680 235 2150 232 DFN-IP service G-WiN
5400 209 85 97 Concert European Core Network
1257 207 430 202 SWIPnet Swedish IP Network
719 182 306 127 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
3303 141 548 140 Swisscom Ltd
8708 141 23 137 Romania Data Systems S.A.
2856 128 787 118 BTnet UK Regional network
12302 122 17 29 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks / Clinet
5511 110 192 88 France Telecom
3233 104 10 9 RNC - Romanian Natioanal R&D
2874 102 85 39 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1821 9165 1373 UUNET Technologies, Inc.
7018 1316 7402 944 AT&T
3908 950 1653 490 Supernet, Inc.
1239 802 3268 639 Sprint
852 756 1175 451 Telus Advanced Communications
1 690 8067 441 GENUITY
7843 646 360 237 Adelphia Corp.
4323 628 439 258 Time Warner Communications, I
7132 583 659 133 Southwestern Bell Internet Se
7046 543 889 334 UUNET Technologies, Inc.
209 541 2026 351 Qwest
690 521 75 330 Merit Network
7066 484 203 254 Virginia Polytechnic Institut
7029 462 165 56 Alltel Information Services,
3549 428 827 308 Global Crossing
2149 389 177 289 Performance Systems, Inc.
15290 378 297 193 AT&T Canada IES
6197 371 547 36 BellSouth Network Solutions,
2914 367 2083 367 Verio, Inc.
6347 343 370 76 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 559 533 China Education and Research
3908 950 460 Supernet, Inc.
7132 583 450 Southwestern Bell Internet Se
7843 646 409 Adelphia Corp.
7029 462 406 Alltel Information Services,
7018 1316 372 AT&T
4323 628 370 Time Warner Communications, I
1221 1256 357 Telstra Pty Ltd
6197 371 335 BellSouth Network Solutions,
852 756 305 Telus Advanced Communications
4151 289 273 USDA
6347 343 267 SAVVIS Communications Corpora
4355 303 251 EarthLink, Inc.
1 690 249 GENUITY
3352 273 242 Ibernet, Internet Access Netw
7066 484 230 Virginia Polytechnic Institut
18566 234 230 Covad Communications
7303 277 218 Telecom Argentina Stet-France
4755 293 216 Videsh Sanchar Nigam Ltd. Aut
7046 543 209 UUNET Technologies, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
65003 PRIVATE 202.92.84.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.84.0/22 9837 Powertel Ltd
65003 PRIVATE 202.92.85.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.119.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.32.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.33.0/24 9837 Powertel Ltd
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
26195 UNALLOCATED 208.251.142.0/24 701 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
192.44.0.0/19 702 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
192.108.46.0/23 680 DFN-IP service G-WiN
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
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
192.153.136.0/21 568 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 /8:18 /9:6 /10:7 /11:12 /12:35
/13:86 /14:235 /15:415 /16:7269 /17:1456 /18:2659
/19:7700 /20:7456 /21:5253 /22:7925 /23:9715 /24:63245
/25:197 /26:157 /27:85 /28:75 /29:51 /30:77
/31:0 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 546 903 UUNET Technologies, Inc.
3908 528 950 Supernet, Inc.
701 503 1821 UUNET Technologies, Inc.
690 463 521 Merit Network
7843 451 646 Adelphia Corp.
7066 387 484 Virginia Polytechnic Institut
7018 369 1316 AT&T
7029 365 462 Alltel Information Services,
6197 257 371 BellSouth Network Solutions,
6198 238 310 BellSouth Network Solutions,
3301 233 395 TeliaNet Sweden
18566 230 234 Covad Communications
209 214 541 Qwest
3215 211 279 France Telecom / &Equant
7046 205 543 UUNET Technologies, Inc.
1580 202 215 HQ, 5th Signal Command
3352 198 273 Ibernet, Internet Access Netw
1239 197 802 Sprint
3320 196 263 Deutsche Telekom AG
1 190 690 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:512 13:10 15:2 17:6 20:3
24:759 25:1 32:41 38:9 40:6 44:1
57:13 61:315 62:233 63:1877 64:1218 65:1403
66:999 67:91 68:67 80:253 81:33 128:65
129:131 130:22 131:53 132:11 133:2 134:125
135:8 136:243 137:94 138:152 139:72 140:169
141:122 142:79 143:45 144:143 145:14 146:189
147:139 148:242 149:85 150:39 151:66 152:267
153:34 154:14 155:114 156:70 157:127 158:70
159:136 160:18 161:74 162:213 163:93 164:261
165:132 166:218 167:177 168:296 169:60 170:242
171:3 192:5460 193:2365 194:2087 195:918 196:414
198:3629 199:3181 200:2626 202:3330 203:4779 204:3256
205:2190 206:2672 207:2520 208:2607 209:2691 210:592
211:237 212:888 213:659 214:9 215:19 216:2833
217:470 218:29
End of report
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