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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 19 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113069
Prefixes after maximum aggregation: 73620
Unique aggregates announced to Internet: 54892
Total ASes present in the Internet Routing Table: 13503
Origin-only ASes present in the Internet Routing Table: 11700
Origin ASes announcing only one prefix: 5208
Transit ASes present in the Internet Routing Table: 1803
Transit-only ASes present in the Internet Routing Table: 54
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: 1183022244
Equivalent to 70 /8s, 131 /16s and 124 /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: 45744
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18677
Total APNIC prefixes after maximum aggregation: 11083
Prefixes being announced from the APNIC address blocks: 17331
Unique aggregates announced from the APNIC address blocks: 10625
APNIC Region origin ASes present in the Internet Routing Table: 1580
APNIC Region origin ASes announcing only one prefix: 515
APNIC Region transit ASes present in the Internet Routing Table: 275
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 92799584
Equivalent to 5 /8s, 136 /16s and 2 /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: 75181
Total ARIN prefixes after maximum aggregation: 47934
Prefixes being announced from the ARIN address blocks: 53841
Unique aggregates announced from the ARIN address blocks: 18147
ARIN Region origin ASes present in the Internet Routing Table: 7924
ARIN Region origin ASes announcing only one prefix: 2559
ARIN Region transit ASes present in the Internet Routing Table: 773
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 190889024
Equivalent to 11 /8s, 96 /16s and 188 /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: 19211
Total RIPE prefixes after maximum aggregation: 14603
Prefixes being announced from the RIPE address blocks: 15959
Unique aggregates announced from the RIPE address blocks: 10527
RIPE Region origin ASes present in the Internet Routing Table: 3945
RIPE Region origin ASes announcing only one prefix: 2134
RIPE Region transit ASes present in the Internet Routing Table: 745
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 113312000
Equivalent to 6 /8s, 193 /16s and 1 /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 552 1330 18 China Education and Research
703 415 376 323 UUNET
2907 362 1815 341 SINET Japan
2764 358 358 329 connect.com.au pty ltd
7474 315 292 211 Optus Communications Pty Ltd
4134 299 2183 102 Data Communications Bureau
4755 286 143 75 Videsh Sanchar Nigam Ltd. Aut
17557 269 20 96 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 112 56 103 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 395 923 342 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 145 41 141 Romania Data Systems S.A.
3303 142 548 141 Swisscom Ltd
2856 126 786 116 BTnet UK Regional network
12302 123 18 30 MobiFon S.A.
3246 111 317 106 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 1785 9126 1360 UUNET Technologies, Inc.
7018 1293 7195 925 AT&T
3908 1012 1659 493 Supernet, Inc.
1239 820 3192 643 Sprint
852 723 1175 449 Telus Advanced Communications
1 672 8040 433 GENUITY
7843 646 373 259 Adelphia Corp.
7046 624 882 315 UUNET Technologies, Inc.
7132 595 663 137 Southwestern Bell Internet Se
4323 551 450 172 Time Warner Communications, I
690 523 76 329 Merit Network
209 506 2057 344 Qwest
2548 469 1162 281 Business Internet, Inc.
3549 430 806 308 Global Crossing
6197 381 611 37 BellSouth Network Solutions,
15290 376 297 191 AT&T Canada IES
2914 361 2074 361 Verio, Inc.
6347 348 370 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 552 534 China Education and Research
3908 1012 519 Supernet, Inc.
7132 595 458 Southwestern Bell Internet Se
7843 646 387 Adelphia Corp.
4323 551 379 Time Warner Communications, I
7018 1293 368 AT&T
6197 381 344 BellSouth Network Solutions,
1221 1214 327 Telstra Pty Ltd
7046 624 309 UUNET Technologies, Inc.
4151 303 287 USDA
852 723 274 Telus Advanced Communications
6347 348 272 SAVVIS Communications Corpora
4355 337 265 EarthLink, Inc.
18566 247 243 Covad Communications
1 672 239 GENUITY
4814 231 217 China Telecom (Group)
4755 286 211 Videsh Sanchar Nigam Ltd. Aut
1580 212 200 ANOSCEUR
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
/13:86 /14:234 /15:424 /16:7266 /17:1469 /18:2677
/19:7780 /20:7542 /21:5227 /22:7936 /23:9593 /24:62309
/25:152 /26:138 /27:55 /28:49 /29:29 /30:5
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 599 1012 Supernet, Inc.
702 543 894 UUNET - Commercial IP service
701 492 1785 UUNET Technologies, Inc.
690 469 523 Merit Network
7843 445 646 Adelphia Corp.
7018 379 1293 AT&T
7046 301 624 UUNET Technologies, Inc.
6197 266 381 BellSouth Network Solutions,
6198 244 317 BellSouth Network Solutions,
18566 243 247 Covad Communications
3301 233 395 TeliaNet Sweden
3215 223 291 France Telecom Transpac
1239 222 820 Sprint
7066 204 301 Virginia Polytechnic Institut
1580 199 212 ANOSCEUR
4355 194 337 EarthLink, Inc.
4323 190 551 Time Warner Communications, I
209 187 506 Qwest
5400 186 212 BT Ignite European Backbone
11492 185 189 Cable One
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 12:536 13:10 15:2 17:6
20:4 24:828 25:1 32:41 38:9 40:6
44:1 57:14 61:328 62:237 63:1863 64:1231
65:1443 66:1006 67:96 68:86 80:266 81:45
128:65 129:122 130:21 131:54 132:11 133:2
134:107 135:9 136:425 137:96 138:150 139:63
140:153 141:47 142:61 143:48 144:140 145:17
146:238 147:143 148:240 149:78 150:40 151:58
152:268 153:36 154:11 155:115 156:71 157:108
158:67 159:134 160:20 161:72 162:123 163:78
164:84 165:129 166:107 167:263 168:282 169:60
170:194 171:3 192:5378 193:2350 194:2062 195:779
196:410 198:3574 199:3124 200:2593 202:3269 203:4711
204:3231 205:2132 206:2443 207:2451 208:2598 209:2698
210:607 211:240 212:859 213:716 214:8 215:20
216:2855 217:491 218:33 219:1
End of report
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