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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 Fri 23 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114493
Prefixes after maximum aggregation: 74219
Unique aggregates announced to Internet: 55067
Total ASes present in the Internet Routing Table: 13593
Origin-only ASes present in the Internet Routing Table: 11756
Origin ASes announcing only one prefix: 5238
Transit ASes present in the Internet Routing Table: 1837
Transit-only ASes present in the Internet Routing Table: 56
Average AS path length visible in the Internet Routing Table: 5.4
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: 34
Number of addresses announced to Internet: 1183920024
Equivalent to 70 /8s, 145 /16s and 47 /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: 46490
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18944
Total APNIC prefixes after maximum aggregation: 11224
Prefixes being announced from the APNIC address blocks: 17465
Unique aggregates announced from the APNIC address blocks: 10643
APNIC Region origin ASes present in the Internet Routing Table: 1590
APNIC Region origin ASes announcing only one prefix: 519
APNIC Region transit ASes present in the Internet Routing Table: 280
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 93081440
Equivalent to 5 /8s, 140 /16s and 79 /24s
Percentage of available APNIC address space announced: 61.2
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: 76251
Total ARIN prefixes after maximum aggregation: 48336
Prefixes being announced from the ARIN address blocks: 54192
Unique aggregates announced from the ARIN address blocks: 18190
ARIN Region origin ASes present in the Internet Routing Table: 7988
ARIN Region origin ASes announcing only one prefix: 2574
ARIN Region transit ASes present in the Internet Routing Table: 804
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 191008368
Equivalent to 11 /8s, 98 /16s and 142 /24s
Percentage of available ARIN address space announced: 67.0
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: 19298
Total RIPE prefixes after maximum aggregation: 14659
Prefixes being announced from the RIPE address blocks: 16022
Unique aggregates announced from the RIPE address blocks: 10578
RIPE Region origin ASes present in the Internet Routing Table: 3959
RIPE Region origin ASes announcing only one prefix: 2145
RIPE Region transit ASes present in the Internet Routing Table: 740
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 113411072
Equivalent to 6 /8s, 194 /16s and 132 /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 1206 1189 884 Telstra Pty Ltd
4538 578 1330 18 China Education and Research
703 411 374 320 UUNET
2907 363 1816 342 SINET Japan
2764 358 358 329 connect.com.au pty ltd
7474 316 292 211 Optus Communications Pty Ltd
4134 299 2198 100 Data Communications Bureau
4755 284 142 74 Videsh Sanchar Nigam Ltd. Aut
17557 272 20 96 Pakistan Telecom
4766 250 1507 157 Korea Internet Exchange for "
4814 231 79 14 China Telecom (Group)
17676 189 2946 35 XTAGE CORPORATION
9443 171 45 66 Primus Telecommunications
9583 171 32 5 Satyam Infoway Ltd.,
9768 144 385 74 Korea Telecom
7539 141 170 136 TANet2, sponsored by NSC, TAI
7657 131 22 91 The Internet Group Limited
9800 121 187 23 CHINA UNICOM
4621 116 11 62 UNINET-TH
4713 113 993 104 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 892 2430 749 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 213 85 101 BT Ignite European Backbone
1257 210 444 205 SWIPnet Swedish IP Network
719 183 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 145 41 141 Romania Data Systems S.A.
3303 143 546 142 Swisscom Ltd
2856 126 786 116 BTnet UK Regional network
12302 125 18 32 MobiFon S.A.
3246 112 317 107 Song Networks
5511 109 192 87 France Telecom
3233 108 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 1790 9126 1363 UUNET Technologies, Inc.
7018 1293 7213 926 AT&T
3908 1019 1660 496 Supernet, Inc.
1239 821 3192 644 Sprint
852 723 1175 449 Telus Advanced Communications
1 670 8039 431 GENUITY
7843 652 371 276 Adelphia Corp.
7046 614 882 317 UUNET Technologies, Inc.
7132 594 664 137 Southwestern Bell Internet Se
4323 551 450 172 Time Warner Communications, I
690 519 75 326 Merit Network
209 509 2074 346 Qwest
7066 489 203 256 Virginia Polytechnic Institut
2548 460 1146 274 Business Internet, Inc.
3549 421 726 302 Global Crossing
15290 374 249 188 AT&T Canada IES
6197 362 254 182 BellSouth Network Solutions,
2914 361 2074 361 Verio, Inc.
6347 347 370 76 SAVVIS Communications Corpora
376 339 391 107 Reseau Interordinateurs Scien
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 578 560 China Education and Research
3908 1019 523 Supernet, Inc.
7132 594 457 Southwestern Bell Internet Se
4323 551 379 Time Warner Communications, I
7843 652 376 Adelphia Corp.
7018 1293 367 AT&T
1221 1206 322 Telstra Pty Ltd
7046 614 297 UUNET Technologies, Inc.
4151 305 289 USDA
852 723 274 Telus Advanced Communications
6347 347 271 SAVVIS Communications Corpora
4355 338 266 EarthLink, Inc.
18566 258 254 Covad Communications
1 670 239 GENUITY
7066 489 233 Virginia Polytechnic Institut
376 339 232 Reseau Interordinateurs Scien
4814 231 217 China Telecom (Group)
4755 284 210 Videsh Sanchar Nigam Ltd. Aut
1580 212 200 ANOSCEUR
4134 299 199 Data Communications Bureau
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
192.44.0.0/19 702 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 /16:7308 /17:1481 /18:2681
/19:7804 /20:7582 /21:5286 /22:8001 /23:9678 /24:63113
/25:208 /26:191 /27:109 /28:78 /29:41 /30:76
/31:1 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 601 1019 Supernet, Inc.
702 543 892 UUNET - Commercial IP service
701 496 1790 UUNET Technologies, Inc.
690 465 519 Merit Network
7843 452 652 Adelphia Corp.
7066 388 489 Virginia Polytechnic Institut
7018 381 1293 AT&T
7046 290 614 UUNET Technologies, Inc.
6197 264 362 BellSouth Network Solutions,
18566 254 258 Covad Communications
6198 244 320 BellSouth Network Solutions,
3301 237 399 TeliaNet Sweden
1239 224 821 Sprint
3215 223 291 France Telecom Transpac
1580 199 212 ANOSCEUR
4355 195 338 EarthLink, Inc.
4323 190 551 Time Warner Communications, I
209 187 509 Qwest
5400 187 213 BT Ignite European Backbone
4538 186 578 China Education and Research
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 12:542 13:10 15:2 17:6
20:4 24:818 25:1 32:41 38:9 40:6
44:1 55:1 57:14 61:322 62:236 63:1851
64:1233 65:1454 66:1051 67:96 68:87 80:256
81:45 128:65 129:157 130:20 131:55 132:11
133:2 134:124 135:9 136:500 137:96 138:147
139:62 140:189 141:73 142:68 143:50 144:139
145:17 146:258 147:142 148:247 149:80 150:41
151:58 152:266 153:37 154:11 155:116 156:71
157:111 158:67 159:140 160:20 161:75 162:124
163:86 164:263 165:128 166:103 167:265 168:120
169:62 170:192 171:3 192:5477 193:2356 194:2069
195:812 196:415 198:3674 199:3132 200:2602 202:3336
203:4732 204:3266 205:2144 206:2514 207:2506 208:2595
209:2693 210:609 211:238 212:872 213:706 214:8
215:20 216:2851 217:491 218:34 219:1
End of report
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