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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 Tue 20 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113141
Prefixes after maximum aggregation: 73643
Unique aggregates announced to Internet: 54951
Total ASes present in the Internet Routing Table: 13517
Origin-only ASes present in the Internet Routing Table: 11718
Origin ASes announcing only one prefix: 5220
Transit ASes present in the Internet Routing Table: 1799
Transit-only ASes present in the Internet Routing Table: 53
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 18
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: 1183378980
Equivalent to 70 /8s, 136 /16s and 238 /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: 45825
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18676
Total APNIC prefixes after maximum aggregation: 11074
Prefixes being announced from the APNIC address blocks: 17334
Unique aggregates announced from the APNIC address blocks: 10618
APNIC Region origin ASes present in the Internet Routing Table: 1582
APNIC Region origin ASes announcing only one prefix: 519
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: 12
Number of APNIC addresses announced to Internet: 92853728
Equivalent to 5 /8s, 136 /16s and 213 /24s
Percentage of available APNIC address space announced: 61.1
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: 75182
Total ARIN prefixes after maximum aggregation: 47951
Prefixes being announced from the ARIN address blocks: 53841
Unique aggregates announced from the ARIN address blocks: 18128
ARIN Region origin ASes present in the Internet Routing Table: 7929
ARIN Region origin ASes announcing only one prefix: 2560
ARIN Region transit ASes present in the Internet Routing Table: 772
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 190894144
Equivalent to 11 /8s, 96 /16s and 208 /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: 19283
Total RIPE prefixes after maximum aggregation: 14618
Prefixes being announced from the RIPE address blocks: 16018
Unique aggregates announced from the RIPE address blocks: 10604
RIPE Region origin ASes present in the Internet Routing Table: 3953
RIPE Region origin ASes announcing only one prefix: 2141
RIPE Region transit ASes present in the Internet Routing Table: 741
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 113350656
Equivalent to 6 /8s, 193 /16s and 152 /24s
Percentage of available RIPE address space announced: 75.1
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 1209 1189 883 Telstra Pty Ltd
4538 553 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 314 292 211 Optus Communications Pty Ltd
4134 299 2183 102 Data Communications Bureau
4755 286 143 75 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 179 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
702 891 2429 748 UUNET - Commercial IP service
3301 399 924 346 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
786 176 1857 176 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 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 1788 9126 1361 UUNET Technologies, Inc.
7018 1294 7211 926 AT&T
3908 1012 1659 493 Supernet, Inc.
1239 820 3192 644 Sprint
852 723 1175 450 Telus Advanced Communications
1 670 8039 431 GENUITY
7843 644 370 266 Adelphia Corp.
7046 623 882 317 UUNET Technologies, Inc.
7132 593 664 136 Southwestern Bell Internet Se
4323 551 450 172 Time Warner Communications, I
690 523 76 329 Merit Network
209 508 2073 345 Qwest
2548 466 1162 278 Business Internet, Inc.
3549 428 790 306 Global Crossing
6197 381 611 37 BellSouth Network Solutions,
15290 376 281 191 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 553 535 China Education and Research
3908 1012 519 Supernet, Inc.
7132 593 457 Southwestern Bell Internet Se
4323 551 379 Time Warner Communications, I
7843 644 378 Adelphia Corp.
7018 1294 368 AT&T
6197 381 344 BellSouth Network Solutions,
1221 1209 326 Telstra Pty Ltd
7046 623 306 UUNET Technologies, Inc.
4151 303 287 USDA
852 723 273 Telus Advanced Communications
6347 348 272 SAVVIS Communications Corpora
4355 337 265 EarthLink, Inc.
18566 247 243 Covad Communications
1 670 239 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 /16:7272 /17:1472 /18:2673
/19:7781 /20:7551 /21:5231 /22:7949 /23:9600 /24:62340
/25:152 /26:138 /27:57 /28:50 /29:29 /30:5
/31:0 /32:17
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 599 1012 Supernet, Inc.
702 542 891 UUNET - Commercial IP service
701 492 1788 UUNET Technologies, Inc.
690 469 523 Merit Network
7843 443 644 Adelphia Corp.
7018 379 1294 AT&T
7046 301 623 UUNET Technologies, Inc.
6197 266 381 BellSouth Network Solutions,
6198 244 317 BellSouth Network Solutions,
18566 243 247 Covad Communications
3301 237 399 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
209 188 508 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 12:538 13:10 15:2 17:6
20:4 24:827 25:1 32:41 38:9 40:6
44:1 57:14 61:320 62:245 63:1862 64:1234
65:1445 66:1007 67:96 68:84 80:265 81:45
128:65 129:122 130:20 131:54 132:11 133:2
134:106 135:9 136:426 137:96 138:150 139:63
140:151 141:47 142:61 143:48 144:140 145:17
146:238 147:143 148:240 149:79 150:40 151:58
152:268 153:37 154:9 155:116 156:71 157:107
158:67 159:134 160:21 161:72 162:123 163:79
164:83 165:129 166:107 167:263 168:282 169:60
170:190 171:3 192:5382 193:2352 194:2064 195:807
196:413 198:3581 199:3118 200:2601 202:3282 203:4720
204:3202 205:2128 206:2421 207:2455 208:2597 209:2694
210:610 211:237 212:875 213:710 214:8 215:19
216:2863 217:493 218:34 219:1
End of report
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