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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 17 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113052
Prefixes after maximum aggregation: 73578
Unique aggregates announced to Internet: 54904
Total ASes present in the Internet Routing Table: 13492
Origin-only ASes present in the Internet Routing Table: 11674
Origin ASes announcing only one prefix: 5202
Transit ASes present in the Internet Routing Table: 1818
Transit-only ASes present in the Internet Routing Table: 55
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 21
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: 35
Number of addresses announced to Internet: 1182982048
Equivalent to 70 /8s, 130 /16s and 223 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 45631
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18733
Total APNIC prefixes after maximum aggregation: 11072
Prefixes being announced from the APNIC address blocks: 17383
Unique aggregates announced from the APNIC address blocks: 10638
APNIC Region origin ASes present in the Internet Routing Table: 1582
APNIC Region origin ASes announcing only one prefix: 516
APNIC Region transit ASes present in the Internet Routing Table: 278
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 11
Number of APNIC addresses announced to Internet: 92728160
Equivalent to 5 /8s, 134 /16s and 235 /24s
Percentage of available APNIC address space announced: 61.0
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: 75059
Total ARIN prefixes after maximum aggregation: 47906
Prefixes being announced from the ARIN address blocks: 53714
Unique aggregates announced from the ARIN address blocks: 18129
ARIN Region origin ASes present in the Internet Routing Table: 7913
ARIN Region origin ASes announcing only one prefix: 2555
ARIN Region transit ASes present in the Internet Routing Table: 778
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 190841408
Equivalent to 11 /8s, 96 /16s and 2 /24s
Percentage of available ARIN address space announced: 66.9
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
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: 19260
Total RIPE prefixes after maximum aggregation: 14600
Prefixes being announced from the RIPE address blocks: 16001
Unique aggregates announced from the RIPE address blocks: 10539
RIPE Region origin ASes present in the Internet Routing Table: 3942
RIPE Region origin ASes announcing only one prefix: 2131
RIPE Region transit ASes present in the Internet Routing Table: 750
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 113271296
Equivalent to 6 /8s, 192 /16s and 98 /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 1214 1189 887 Telstra Pty Ltd
4538 626 1312 28 China Education and Research
703 416 377 324 UUNET
2907 362 1815 341 SINET Japan
2764 358 358 329 connect.com.au pty ltd
7474 317 292 213 Optus Communications Pty Ltd
4134 299 2183 102 Data Communications Bureau
4755 285 127 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 187 2914 34 XTAGE CORPORATION
9583 180 32 5 Satyam Infoway Ltd.,
9443 171 45 68 Primus Telecommunications
9768 144 385 74 Korea Telecom
7657 132 22 91 The Internet Group Limited
9800 121 187 23 CHINA UNICOM
4713 114 1009 105 NTT Communications Corporatio
4739 113 56 104 Commerical Internet eXchange
4795 103 19 54 INDOSATNET-ASN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 894 2446 751 UUNET - Commercial IP service
3301 396 923 343 TeliaNet Sweden
5515 320 783 180 Sonera Solution Autonomous Sy
3215 291 641 180 France Telecom Transpac
3320 246 1964 212 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5400 212 85 101 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
8708 144 40 140 Romania Data Systems S.A.
3303 142 548 141 Swisscom Ltd
2856 126 786 116 BTnet UK Regional network
12302 126 18 33 MobiFon S.A.
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3233 107 10 9 RNC - Romanian Natioanal R&D
3269 106 658 63 TELECOM ITALIA
2874 102 85 39 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 1786 9126 1359 UUNET Technologies, Inc.
7018 1309 7435 936 AT&T
3908 1014 1659 493 Supernet, Inc.
1239 822 3224 645 Sprint
852 722 1175 449 Telus Advanced Communications
1 672 8040 433 GENUITY
7843 645 372 259 Adelphia Corp.
7132 595 663 137 Southwestern Bell Internet Se
4323 550 450 172 Time Warner Communications, I
690 523 76 329 Merit Network
7046 512 882 315 UUNET Technologies, Inc.
209 507 2057 343 Qwest
2548 465 1162 277 Business Internet, Inc.
3549 431 806 309 Global Crossing
6197 381 611 37 BellSouth Network Solutions,
15290 377 297 192 AT&T Canada IES
2914 361 2074 361 Verio, Inc.
6347 350 370 76 SAVVIS Communications Corpora
4355 337 279 72 EarthLink, Inc.
6198 317 158 203 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 626 598 China Education and Research
3908 1014 521 Supernet, Inc.
7132 595 458 Southwestern Bell Internet Se
7843 645 386 Adelphia Corp.
4323 550 378 Time Warner Communications, I
7018 1309 373 AT&T
6197 381 344 BellSouth Network Solutions,
1221 1214 327 Telstra Pty Ltd
4151 303 287 USDA
6347 350 274 SAVVIS Communications Corpora
852 722 273 Telus Advanced Communications
4355 337 265 EarthLink, Inc.
18566 245 241 Covad Communications
1 672 239 GENUITY
4814 231 217 China Telecom (Group)
4755 285 211 Videsh Sanchar Nigam Ltd. Aut
1580 212 200 ANOSCEUR
7046 512 197 UUNET Technologies, Inc.
4134 299 197 Data Communications Bureau
690 523 194 Merit Network
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
192.208.29.0/24 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
/13:85 /14:233 /15:420 /16:7277 /17:1469 /18:2677
/19:7778 /20:7542 /21:5219 /22:7930 /23:9568 /24:62324
/25:152 /26:140 /27:56 /28:53 /29:30 /30:1
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 600 1014 Supernet, Inc.
702 543 894 UUNET - Commercial IP service
701 491 1786 UUNET Technologies, Inc.
690 469 523 Merit Network
7843 445 645 Adelphia Corp.
7018 379 1309 AT&T
6197 266 381 BellSouth Network Solutions,
6198 244 317 BellSouth Network Solutions,
18566 241 245 Covad Communications
3301 234 396 TeliaNet Sweden
3215 223 291 France Telecom Transpac
1239 222 822 Sprint
7066 204 301 Virginia Polytechnic Institut
1580 199 212 ANOSCEUR
4355 194 337 EarthLink, Inc.
7046 191 512 UUNET Technologies, Inc.
209 189 507 Qwest
4323 189 550 Time Warner Communications, I
5400 186 212 BT Ignite European Backbone
11492 185 189 Cable One
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 12:535 13:10 15:2 17:6
20:4 24:719 25:1 32:41 38:9 40:6
44:1 57:14 61:328 62:236 63:1865 64:1229
65:1440 66:994 67:97 68:86 80:265 81:44
128:68 129:123 130:21 131:54 132:11 133:2
134:107 135:9 136:425 137:96 138:149 139:63
140:151 141:46 142:61 143:48 144:140 145:17
146:236 147:143 148:240 149:79 150:40 151:58
152:268 153:36 154:11 155:116 156:71 157:108
158:67 159:134 160:20 161:72 162:123 163:80
164:84 165:129 166:107 167:263 168:284 169:60
170:195 171:3 192:5385 193:2348 194:2066 195:804
196:412 198:3575 199:3133 200:2593 202:3324 203:4714
204:3229 205:2142 206:2443 207:2471 208:2595 209:2699
210:599 211:243 212:859 213:734 214:8 215:19
216:2845 217:496 218:33 219:1
End of report
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