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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 24 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116185
Prefixes after maximum aggregation: 74767
Unique aggregates announced to Internet: 55687
Total ASes present in the Internet Routing Table: 13954
Origin-only ASes present in the Internet Routing Table: 12089
Origin ASes announcing only one prefix: 5427
Transit ASes present in the Internet Routing Table: 1865
Transit-only ASes present in the Internet Routing Table: 58
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 7
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: 1180583112
Equivalent to 70 /8s, 94 /16s and 68 /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: 48249
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18967
Total APNIC prefixes after maximum aggregation: 11436
Prefixes being announced from the APNIC address blocks: 17465
Unique aggregates announced from the APNIC address blocks: 11062
APNIC Region origin ASes present in the Internet Routing Table: 1622
APNIC Region origin ASes announcing only one prefix: 519
APNIC Region transit ASes present in the Internet Routing Table: 273
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 99370656
Equivalent to 5 /8s, 236 /16s and 70 /24s
Percentage of available APNIC address space announced: 65.4
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: 72704
Total ARIN prefixes after maximum aggregation: 46378
Prefixes being announced from the ARIN address blocks: 51139
Unique aggregates announced from the ARIN address blocks: 15438
ARIN Region origin ASes present in the Internet Routing Table: 7852
ARIN Region origin ASes announcing only one prefix: 2596
ARIN Region transit ASes present in the Internet Routing Table: 751
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 181996128
Equivalent to 10 /8s, 217 /16s and 10 /24s
Percentage of available ARIN address space announced: 67.8
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 - 26591, 26624 - 27647
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19700
Total RIPE prefixes after maximum aggregation: 14871
Prefixes being announced from the RIPE address blocks: 16369
Unique aggregates announced from the RIPE address blocks: 10958
RIPE Region origin ASes present in the Internet Routing Table: 4106
RIPE Region origin ASes announcing only one prefix: 2232
RIPE Region transit ASes present in the Internet Routing Table: 760
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 118266560
Equivalent to 7 /8s, 12 /16s and 154 /24s
Percentage of available RIPE address space announced: 78.3
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
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4808
Total LACNIC prefixes after maximum aggregation: 2082
Prefixes being announced from the LACNIC address blocks: 4147
Unique aggregates announced from the LACNIC address blocks: 2650
LACNIC Region origin ASes present in the Internet Routing Table: 319
LACNIC Region origin ASes announcing only one prefix: 80
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11542272
Equivalent to 0 /8s, 176 /16s and 31 /24s
Percentage of available LACNIC address space announced: 68.8
LACNIC AS Blocks 26592 - 26623
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1191 1185 868 Telstra Pty Ltd
703 394 368 312 UUNET
2907 350 1751 330 SINET Japan
2764 337 356 309 connect.com.au pty ltd
17557 304 22 118 Pakistan Telecom
7474 301 275 203 Optus Communications Pty Ltd
4134 296 2286 97 Data Communications Bureau
4755 275 138 74 Videsh Sanchar Nigam Ltd. Aut
4766 250 1808 158 Korea Internet Exchange for "
4814 232 79 15 China Telecom (Group)
17676 224 3506 31 XTAGE CORPORATION
9443 186 57 73 Primus Telecommunications
9583 161 32 5 Satyam Infoway Ltd.,
4515 138 102 76 Star Internet Services Ltd.
9768 135 385 74 Korea Telecom
4716 129 736 123 TTnet
7657 127 23 89 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 115 1049 104 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1786 9141 1272 UUNET Technologies, Inc.
7018 1356 7194 943 AT&T
3908 1074 1652 511 Supernet, Inc.
1239 893 3188 665 Sprint
7843 759 373 318 Adelphia Corp.
852 738 1146 457 Telus Advanced Communications
1 659 8042 434 GENUITY
7046 602 894 300 UUNET Technologies, Inc.
209 575 2048 335 Qwest
4323 519 439 164 Time Warner Communications, I
690 517 75 324 Merit Network
7132 450 673 70 Southwestern Bell Internet Se
705 445 135 205 UUNET Technologies, Inc.
3549 409 726 296 Global Crossing
2548 400 1115 243 Business Internet, Inc.
6197 398 601 40 BellSouth Network Solutions,
6198 395 180 196 BellSouth Network Solutions,
4355 385 306 109 EarthLink, Inc.
2914 373 2022 363 Verio, Inc.
15290 355 212 174 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 871 2374 723 UUNET - Commercial IP service
3301 381 1163 334 TeliaNet Sweden
3215 306 789 172 France Telecom Transpac
3320 243 1964 220 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 211 783 176 Sonera Solution Autonomous Sy
1257 207 414 203 SWIPnet Swedish IP Network
5400 204 83 97 BT Ignite European Backbone
719 191 306 130 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
2856 170 1302 132 BTnet UK Regional network
8708 156 41 146 Romania Data Systems S.A.
3303 142 516 141 Swisscom Ltd
3246 122 373 115 Song Networks
12302 121 17 28 MobiFon S.A.
8220 114 168 105 COLT Internet - International
3233 106 10 8 RNC - Romanian Natioanal R&D
3269 106 690 64 TELECOM ITALIA
2874 102 85 39 Global One Services AB
5511 101 192 84 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 244 114 58 ImpSat USA, Inc.
8151 203 346 110 UniNet S.A. de C.V.
7303 179 27 49 Telecom Argentina Stet-France
11172 168 72 33 Servicios Alestra S.A de C.V
6503 153 175 110 AVANTEL, S.A.
16814 106 7 12 NSS, S.A.
13999 105 20 7 Mega Cable S.A. de C.V.
10620 99 6 30 TVCABLE BOGOTA
11992 84 8 31 Integrated Systems
11340 80 2 25 Red Universitaria Nacional
15311 76 26 32 Telefonica Empresas
1916 71 404 42 Fundacao de Amparo a Pesquisa
4270 68 18 10 Red de Interconexion Universi
7984 64 27 42 Global One Colombia
4926 63 4 51 Telintar S.A.
2277 62 16 3 ECUANET - CORPORACION ECUATOR
15034 62 5 33 TIBA SA
8065 59 6 15 Empresas Publicas de Medellin
6535 54 4 15 Chilesat Servicios Empresari
7927 54 5 42 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1074 563 Supernet, Inc.
7843 759 441 Adelphia Corp.
7018 1356 413 AT&T
7132 450 380 Southwestern Bell Internet Se
6197 398 358 BellSouth Network Solutions,
4323 519 355 Time Warner Communications, I
1221 1191 323 Telstra Pty Ltd
18566 322 318 Covad Communications
1580 319 306 ANOSCEUR
7046 602 302 UUNET Technologies, Inc.
852 738 281 Telus Advanced Communications
4355 385 276 EarthLink, Inc.
4151 291 275 USDA
6347 349 273 SAVVIS Communications Corpora
209 575 240 Qwest
705 445 240 UUNET Technologies, Inc.
376 333 230 Reseau Interordinateurs Scien
1239 893 228 Sprint
1 659 225 GENUITY
4814 232 217 China Telecom (Group)
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65025 PRIVATE 81.26.65.0/24 11042 Orion Network System
65010 PRIVATE 168.167.21.0/24 11042 Orion Network System
65501 PRIVATE 200.73.24.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.27.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.28.0/24 18747 IFX Communication Ve
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
164.236.0.0/16 568 DISO-UNRRA
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
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 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:5 /10:8 /11:12 /12:46
/13:90 /14:238 /15:426 /16:7292 /17:1504 /18:2733
/19:7912 /20:7497 /21:5340 /22:8177 /23:9971 /24:64173
/25:175 /26:207 /27:103 /28:77 /29:54 /30:95
/31:1 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 638 1074 Supernet, Inc.
7843 571 759 Adelphia Corp.
702 540 871 UUNET - Commercial IP service
701 493 1786 UUNET Technologies, Inc.
690 465 517 Merit Network
7018 438 1356 AT&T
18566 316 322 Covad Communications
6198 311 395 BellSouth Network Solutions,
1580 305 319 ANOSCEUR
7046 287 602 UUNET Technologies, Inc.
6197 281 398 BellSouth Network Solutions,
1239 275 893 Sprint
209 259 575 Qwest
3215 231 306 France Telecom Transpac
3301 227 381 TeliaNet Sweden
11492 224 229 Cable One
4355 218 385 EarthLink, Inc.
7066 205 307 Virginia Polytechnic Institut
19029 191 219 New Edge Networks
3320 186 243 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 12:574 13:10 15:4 17:7 20:3
24:882 25:1 32:42 38:26 40:11 44:1
55:1 57:17 61:368 62:245 63:1903 64:1320
65:1606 66:1199 67:116 68:173 69:16 80:289
81:60 128:129 129:106 130:18 131:63 132:9
133:2 134:131 135:7 136:407 137:108 138:205
139:71 140:156 141:78 142:82 143:46 144:148
145:18 146:239 147:224 148:252 149:76 150:41
151:90 152:294 153:38 154:8 155:106 156:103
157:106 158:77 159:149 160:20 161:74 162:126
163:84 164:80 165:134 166:104 167:300 168:302
169:60 170:208 171:6 192:5436 193:2374 194:2005
195:826 196:434 198:3641 199:3100 200:2526 202:3492
203:4837 204:3280 205:2131 206:2378 207:2472 208:2556
209:2637 210:604 211:251 212:857 213:768 214:10
215:19 216:3008 217:512 218:52 219:3
End of report
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