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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 03 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114551
Prefixes after maximum aggregation: 74038
Unique aggregates announced to Internet: 54591
Total ASes present in the Internet Routing Table: 13484
Origin-only ASes present in the Internet Routing Table: 11665
Origin ASes announcing only one prefix: 5176
Transit ASes present in the Internet Routing Table: 1819
Transit-only ASes present in the Internet Routing Table: 51
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: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 36
Number of addresses announced to Internet: 1191017813
Equivalent to 70 /8s, 253 /16s and 125 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46513
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18896
Total APNIC prefixes after maximum aggregation: 11223
Prefixes being announced from the APNIC address blocks: 17404
Unique aggregates announced from the APNIC address blocks: 10606
APNIC Region origin ASes present in the Internet Routing Table: 1579
APNIC Region origin ASes announcing only one prefix: 515
APNIC Region transit ASes present in the Internet Routing Table: 277
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 90256352
Equivalent to 5 /8s, 97 /16s and 51 /24s
Percentage of available APNIC address space announced: 59.4
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: 76291
Total ARIN prefixes after maximum aggregation: 48205
Prefixes being announced from the ARIN address blocks: 54083
Unique aggregates announced from the ARIN address blocks: 17947
ARIN Region origin ASes present in the Internet Routing Table: 7940
ARIN Region origin ASes announcing only one prefix: 2551
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: 193940304
Equivalent to 11 /8s, 143 /16s and 75 /24s
Percentage of available ARIN address space announced: 72.2
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: 19364
Total RIPE prefixes after maximum aggregation: 14610
Prefixes being announced from the RIPE address blocks: 16035
Unique aggregates announced from the RIPE address blocks: 10499
RIPE Region origin ASes present in the Internet Routing Table: 3914
RIPE Region origin ASes announcing only one prefix: 2110
RIPE Region transit ASes present in the Internet Routing Table: 742
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 112860448
Equivalent to 6 /8s, 186 /16s and 29 /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 1252 1191 896 Telstra Pty Ltd
4538 562 1279 27 China Education and Research
703 413 376 325 UUNET
2907 364 1848 342 SINET Japan
2764 359 358 330 connect.com.au pty ltd
7474 320 296 213 Optus Communications Pty Ltd
17557 298 20 94 Pakistan Telecom
4134 293 2158 103 Data Communications Bureau
4755 291 112 77 Videsh Sanchar Nigam Ltd. Aut
4766 249 1506 156 Korea Internet Exchange for "
4814 220 79 14 China Telecom (Group)
9583 183 32 5 Satyam Infoway Ltd.,
17676 172 2674 32 XTAGE CORPORATION
9443 170 45 68 Primus Telecommunications
7539 148 189 143 TANet2, sponsored by NSC, TAI
9768 144 385 74 Korea Telecom
7657 133 22 91 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4621 116 11 63 UNINET-TH
4713 115 1009 106 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 911 2436 760 UUNET - Commercial IP service
3301 396 923 346 TeliaNet Sweden
5515 320 783 180 Sonera Solution Autonomous Sy
3215 289 641 178 France Telecom Transpac
3320 269 1965 208 Deutsche Telekom AG
680 235 2150 232 DFN-IP service G-WiN
5400 210 85 98 BT Ignite European Backbone
1257 208 446 203 SWIPnet Swedish IP Network
719 183 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 142 23 138 Romania Data Systems S.A.
3303 141 548 140 Swisscom Ltd
2856 128 787 118 BTnet UK Regional network
12302 123 18 30 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3233 106 10 9 RNC - Romanian Natioanal R&D
2874 102 85 39 Global One Services AB
8297 96 47 52 BCE Teleglobe Canada Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1810 9241 1367 UUNET Technologies, Inc.
7018 1318 7402 942 AT&T
3908 1030 1656 490 Supernet, Inc.
1239 830 3249 650 Sprint
852 754 1175 451 Telus Advanced Communications
1 698 8051 447 GENUITY
4323 637 442 261 Time Warner Communications, I
7843 609 364 247 Adelphia Corp.
7132 588 663 135 Southwestern Bell Internet Se
209 539 2025 341 Qwest
7046 525 887 326 UUNET Technologies, Inc.
690 520 75 331 Merit Network
7066 486 203 254 Virginia Polytechnic Institut
7029 452 164 54 Alltel Information Services,
3549 433 822 309 Global Crossing
6197 378 599 48 BellSouth Network Solutions,
15290 377 297 193 AT&T Canada IES
2149 368 166 271 Performance Systems, Inc.
2914 363 2081 363 Verio, Inc.
6347 344 370 75 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1030 540 Supernet, Inc.
4538 562 535 China Education and Research
7132 588 453 Southwestern Bell Internet Se
7029 452 398 Alltel Information Services,
7018 1318 376 AT&T
4323 637 376 Time Warner Communications, I
7843 609 362 Adelphia Corp.
1221 1252 356 Telstra Pty Ltd
6197 378 330 BellSouth Network Solutions,
852 754 303 Telus Advanced Communications
1657 279 277 University of Louisville
6347 344 269 SAVVIS Communications Corpora
4151 283 267 USDA
4355 326 256 EarthLink, Inc.
1 698 251 GENUITY
18566 237 233 Covad Communications
7066 486 232 Virginia Polytechnic Institut
4755 291 214 Videsh Sanchar Nigam Ltd. Aut
7303 270 210 Telecom Argentina Stet-France
4814 220 206 China Telecom (Group)
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
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 - Commercial IP service
192.58.92.0/24 19548 Adelphia Business Solutions
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 Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
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
192.156.164.0/24 19548 Adelphia Business Solutions
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 /8:19 /9:7 /10:7 /11:12 /12:36
/13:86 /14:232 /15:415 /16:7286 /17:1473 /18:2670
/19:7713 /20:7512 /21:5282 /22:8000 /23:9674 /24:63307
/25:200 /26:177 /27:98 /28:88 /29:67 /30:114
/31:0 /32:76
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 606 1030 Supernet, Inc.
702 554 911 UUNET - Commercial IP service
701 493 1810 UUNET Technologies, Inc.
690 466 520 Merit Network
7843 410 609 Adelphia Corp.
7066 389 486 Virginia Polytechnic Institut
7018 374 1318 AT&T
7029 357 452 Alltel Information Services,
1657 278 279 University of Louisville
6197 264 378 BellSouth Network Solutions,
6198 243 316 BellSouth Network Solutions,
3301 234 396 TeliaNet Sweden
18566 233 237 Covad Communications
3215 221 289 France Telecom Transpac
209 220 539 Qwest
1239 213 830 Sprint
1580 201 214 ANOSCEUR
3320 201 269 Deutsche Telekom AG
1 195 698 GENUITY
7046 195 525 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:527 13:10 15:2 17:6 20:3
24:696 25:1 32:41 38:9 40:6 44:1
57:13 61:326 62:240 63:1867 64:1231 65:1417
66:973 67:95 68:74 80:256 81:37 128:64
129:132 130:22 131:55 132:11 133:2 134:122
135:9 136:344 137:95 138:150 139:72 140:175
141:43 142:70 143:50 144:144 145:17 146:189
147:142 148:241 149:79 150:40 151:67 152:271
153:36 154:12 155:114 156:70 157:128 158:69
159:134 160:19 161:75 162:214 163:87 164:264
165:132 166:218 167:259 168:293 169:60 170:230
171:3 192:5467 193:2368 194:2086 195:799 196:414
198:3626 199:3154 200:2733 202:3309 203:4750 204:3256
205:2185 206:2651 207:2508 208:2608 209:2704 210:592
211:239 212:902 213:722 214:9 215:20 216:2846
217:472 218:30
End of report
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