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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 15 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114581
Prefixes after maximum aggregation: 74050
Unique aggregates announced to Internet: 54921
Total ASes present in the Internet Routing Table: 13527
Origin-only ASes present in the Internet Routing Table: 11695
Origin ASes announcing only one prefix: 5201
Transit ASes present in the Internet Routing Table: 1832
Transit-only ASes present in the Internet Routing Table: 54
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 20
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: 1181405304
Equivalent to 70 /8s, 106 /16s and 208 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 46608
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18960
Total APNIC prefixes after maximum aggregation: 11229
Prefixes being announced from the APNIC address blocks: 17465
Unique aggregates announced from the APNIC address blocks: 10672
APNIC Region origin ASes present in the Internet Routing Table: 1583
APNIC Region origin ASes announcing only one prefix: 513
APNIC Region transit ASes present in the Internet Routing Table: 283
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 11
Number of APNIC addresses announced to Internet: 91592160
Equivalent to 5 /8s, 117 /16s and 149 /24s
Percentage of available APNIC address space announced: 60.2
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: 76426
Total ARIN prefixes after maximum aggregation: 48217
Prefixes being announced from the ARIN address blocks: 54017
Unique aggregates announced from the ARIN address blocks: 18108
ARIN Region origin ASes present in the Internet Routing Table: 7950
ARIN Region origin ASes announcing only one prefix: 2557
ARIN Region transit ASes present in the Internet Routing Table: 795
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 190522960
Equivalent to 11 /8s, 91 /16s and 38 /24s
Percentage of available ARIN address space announced: 66.8
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, 68/7, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19195
Total RIPE prefixes after maximum aggregation: 14604
Prefixes being announced from the RIPE address blocks: 15950
Unique aggregates announced from the RIPE address blocks: 10524
RIPE Region origin ASes present in the Internet Routing Table: 3940
RIPE Region origin ASes announcing only one prefix: 2131
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: 20
Number of RIPE addresses announced to Internet: 113191936
Equivalent to 6 /8s, 191 /16s and 44 /24s
Percentage of available RIPE address space announced: 75.0
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 1226 1189 888 Telstra Pty Ltd
4538 564 1280 27 China Education and Research
703 416 377 324 UUNET
2907 366 1833 344 SINET Japan
2764 358 358 329 connect.com.au pty ltd
7474 318 292 213 Optus Communications Pty Ltd
4134 296 2183 102 Data Communications Bureau
4755 284 111 74 Videsh Sanchar Nigam Ltd. Aut
17557 268 20 95 Pakistan Telecom
4766 249 1506 156 Korea Internet Exchange for "
4814 231 79 14 China Telecom (Group)
17676 184 2866 32 XTAGE CORPORATION
9583 183 32 5 Satyam Infoway Ltd.,
9443 170 45 68 Primus Telecommunications
9768 144 385 74 Korea Telecom
7539 142 174 137 TANet2, sponsored by NSC, TAI
7657 132 22 91 The Internet Group Limited
9800 121 187 23 CHINA UNICOM
4621 115 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
702 897 2431 754 UUNET - Commercial IP service
3301 396 923 346 TeliaNet Sweden
3215 291 641 180 France Telecom Transpac
3320 260 1964 212 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5515 215 783 180 Sonera Solution Autonomous Sy
5400 211 85 100 BT Ignite European Backbone
1257 207 446 202 SWIPnet Swedish IP Network
719 182 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
3303 142 548 141 Swisscom Ltd
8708 142 24 138 Romania Data Systems S.A.
2856 126 786 116 BTnet UK Regional network
12302 123 18 36 MobiFon S.A.
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3269 106 658 63 TELECOM ITALIA
3233 105 10 9 RNC - Romanian Natioanal R&D
2874 101 85 38 Global One Services AB
8220 100 166 96 COLT Internet - International
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1788 9128 1360 UUNET Technologies, Inc.
7018 1295 7441 931 AT&T
3908 1013 1659 496 Supernet, Inc.
1239 822 3224 645 Sprint
852 724 1175 450 Telus Advanced Communications
1 662 8040 433 GENUITY
7843 640 371 258 Adelphia Corp.
7132 594 663 137 Southwestern Bell Internet Se
4323 571 452 190 Time Warner Communications, I
690 521 75 328 Merit Network
7046 513 886 314 UUNET Technologies, Inc.
209 504 2057 342 Qwest
7066 486 203 254 Virginia Polytechnic Institut
2548 465 1162 277 Business Internet, Inc.
7029 450 164 53 Alltel Information Services,
3549 438 808 313 Global Crossing
6197 381 611 37 BellSouth Network Solutions,
15290 376 297 192 AT&T Canada IES
2914 359 2073 359 Verio, Inc.
6347 349 370 76 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 564 537 China Education and Research
3908 1013 517 Supernet, Inc.
7132 594 457 Southwestern Bell Internet Se
7029 450 397 Alltel Information Services,
7843 640 382 Adelphia Corp.
4323 571 381 Time Warner Communications, I
7018 1295 364 AT&T
6197 381 344 BellSouth Network Solutions,
1221 1226 338 Telstra Pty Ltd
4151 295 279 USDA
852 724 274 Telus Advanced Communications
6347 349 273 SAVVIS Communications Corpora
4355 334 262 EarthLink, Inc.
18566 243 239 Covad Communications
7066 486 232 Virginia Polytechnic Institut
1 662 229 GENUITY
376 331 226 Reseau Interordinateurs Scien
4814 231 217 China Telecom (Group)
4755 284 210 Videsh Sanchar Nigam Ltd. Aut
1580 212 200 ANOSCEUR
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
192.119.135.0/24 270 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
192.136.136.0/24 7046 UUNET Technologies, Inc.
192.136.136.0/22 568 DISO-UNRRA
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 /8:18 /9:6 /10:7 /11:12 /12:37
/13:84 /14:232 /15:418 /16:7306 /17:1473 /18:2701
/19:7790 /20:7563 /21:5276 /22:7994 /23:9707 /24:63234
/25:200 /26:183 /27:98 /28:82 /29:42 /30:78
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 599 1013 Supernet, Inc.
702 547 897 UUNET - Commercial IP service
701 492 1788 UUNET Technologies, Inc.
690 467 521 Merit Network
7843 441 640 Adelphia Corp.
7066 389 486 Virginia Polytechnic Institut
7018 373 1295 AT&T
7029 356 450 Alltel Information Services,
6197 266 381 BellSouth Network Solutions,
6198 244 317 BellSouth Network Solutions,
18566 239 243 Covad Communications
3301 234 396 TeliaNet Sweden
3215 223 291 France Telecom Transpac
1239 220 822 Sprint
1580 199 212 ANOSCEUR
3320 192 260 Deutsche Telekom AG
4355 191 334 EarthLink, Inc.
7046 189 513 UUNET Technologies, Inc.
209 187 504 Qwest
4323 185 571 Time Warner Communications, I
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 12:536 13:10 15:2 17:6
20:4 24:710 25:1 32:41 38:9 40:6
44:1 57:14 61:329 62:244 63:1860 64:1225
65:1433 66:988 67:97 68:85 80:264 81:45
128:66 129:138 130:21 131:55 132:11 133:2
134:124 135:9 136:499 137:95 138:150 139:71
140:187 141:47 142:69 143:48 144:140 145:18
146:248 147:143 148:243 149:78 150:40 151:69
152:268 153:38 154:11 155:115 156:71 157:113
158:68 159:134 160:18 161:76 162:215 163:87
164:263 165:125 166:215 167:261 168:284 169:60
170:195 171:3 192:5440 193:2331 194:2023 195:805
196:416 198:3672 199:3161 200:2602 202:3327 203:4745
204:3248 205:2174 206:2540 207:2528 208:2606 209:2697
210:606 211:240 212:871 213:711 214:7 215:19
216:2832 217:497 218:30 219:1
End of report
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