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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 26 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116504
Prefixes after maximum aggregation: 74716
Unique aggregates announced to Internet: 55485
Total ASes present in the Internet Routing Table: 13962
Origin-only ASes present in the Internet Routing Table: 12101
Origin ASes announcing only one prefix: 5435
Transit ASes present in the Internet Routing Table: 1861
Transit-only ASes present in the Internet Routing Table: 59
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: 1181174376
Equivalent to 70 /8s, 103 /16s and 74 /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: 48584
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19007
Total APNIC prefixes after maximum aggregation: 11426
Prefixes being announced from the APNIC address blocks: 17494
Unique aggregates announced from the APNIC address blocks: 11072
APNIC Region origin ASes present in the Internet Routing Table: 1628
APNIC Region origin ASes announcing only one prefix: 523
APNIC Region transit ASes present in the Internet Routing Table: 276
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 99434400
Equivalent to 5 /8s, 237 /16s and 63 /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: 72993
Total ARIN prefixes after maximum aggregation: 46308
Prefixes being announced from the ARIN address blocks: 51378
Unique aggregates announced from the ARIN address blocks: 15278
ARIN Region origin ASes present in the Internet Routing Table: 7849
ARIN Region origin ASes announcing only one prefix: 2602
ARIN Region transit ASes present in the Internet Routing Table: 743
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 182233056
Equivalent to 10 /8s, 220 /16s and 167 /24s
Percentage of available ARIN address space announced: 67.9
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 - 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: 19707
Total RIPE prefixes after maximum aggregation: 14887
Prefixes being announced from the RIPE address blocks: 16424
Unique aggregates announced from the RIPE address blocks: 10930
RIPE Region origin ASes present in the Internet Routing Table: 4111
RIPE Region origin ASes announcing only one prefix: 2231
RIPE Region transit ASes present in the Internet Routing Table: 761
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 118512608
Equivalent to 7 /8s, 16 /16s and 91 /24s
Percentage of available RIPE address space announced: 78.5
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: 4791
Total LACNIC prefixes after maximum aggregation: 2095
Prefixes being announced from the LACNIC address blocks: 4128
Unique aggregates announced from the LACNIC address blocks: 2658
LACNIC Region origin ASes present in the Internet Routing Table: 318
LACNIC Region origin ASes announcing only one prefix: 79
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11594496
Equivalent to 0 /8s, 176 /16s and 235 /24s
Percentage of available LACNIC address space announced: 69.1
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 1187 1169 865 Telstra Pty Ltd
703 395 368 313 UUNET
2907 350 1751 330 SINET Japan
2764 335 356 307 connect.com.au pty ltd
17557 320 23 120 Pakistan Telecom
4134 296 2286 97 Data Communications Bureau
7474 294 275 201 Optus Communications Pty Ltd
4755 279 138 73 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 185 57 73 Primus Telecommunications
9583 163 32 5 Satyam Infoway Ltd.,
4515 138 102 76 Star Internet Services Ltd.
9768 136 385 75 Korea Telecom
4716 129 736 123 TTnet
7657 128 23 90 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 112 1044 101 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1780 9141 1265 UUNET Technologies, Inc.
7018 1359 7750 920 AT&T
3908 1077 1668 511 Supernet, Inc.
1239 889 3185 659 Sprint
7843 764 374 310 Adelphia Corp.
852 736 1130 456 Telus Advanced Communications
1 661 8058 436 GENUITY
7046 589 892 291 UUNET Technologies, Inc.
209 578 2068 339 Qwest
4323 519 439 164 Time Warner Communications, I
690 517 75 324 Merit Network
2828 472 598 102 XO Communications
705 442 134 202 UUNET Technologies, Inc.
3549 410 726 296 Global Crossing
2548 401 1115 244 Business Internet, Inc.
6197 400 601 40 BellSouth Network Solutions,
6198 397 180 197 BellSouth Network Solutions,
4355 385 306 109 EarthLink, Inc.
2914 370 2022 363 Verio, Inc.
7132 365 673 70 Southwestern Bell Internet Se
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 868 2374 721 UUNET - Commercial IP service
3301 381 1163 334 TeliaNet Sweden
3215 307 789 172 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 207 414 202 SWIPnet Swedish IP Network
5400 200 83 95 BT Ignite European Backbone
719 190 306 130 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
2856 170 1302 132 BTnet UK Regional network
8708 159 41 147 Romania Data Systems S.A.
3303 142 516 141 Swisscom Ltd
12302 121 17 28 MobiFon S.A.
3246 120 373 115 Song Networks
8220 112 168 103 COLT Internet - International
3269 108 722 64 TELECOM ITALIA
3233 106 10 8 RNC - Romanian Natioanal R&D
2874 99 85 39 Global One Services AB
5511 96 191 80 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 249 114 58 ImpSat USA, Inc.
8151 209 330 110 UniNet S.A. de C.V.
7303 180 28 50 Telecom Argentina Stet-France
11172 167 72 33 Servicios Alestra S.A de C.V
6503 155 191 109 AVANTEL, S.A.
16814 106 7 12 NSS, S.A.
10620 99 6 30 TVCABLE BOGOTA
13999 99 27 36 Mega Cable S.A. de C.V.
11340 80 2 25 Red Universitaria Nacional
11992 80 8 30 Integrated Systems
15311 76 26 32 Telefonica Empresas
1916 74 425 41 Fundacao de Amparo a Pesquisa
4270 68 18 10 Red de Interconexion Universi
7984 64 27 41 Global One Colombia
4926 63 4 51 Telintar S.A.
2277 61 16 3 ECUANET - CORPORACION ECUATOR
15034 60 5 32 TIBA SA
8065 59 6 15 Empresas Publicas de Medellin
6535 54 4 15 Chilesat Servicios Empresari
7927 54 5 39 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1077 566 Supernet, Inc.
7843 764 454 Adelphia Corp.
7018 1359 439 AT&T
2828 472 370 XO Communications
6197 400 360 BellSouth Network Solutions,
4323 519 355 Time Warner Communications, I
1221 1187 322 Telstra Pty Ltd
18566 326 322 Covad Communications
4151 330 314 USDA
1580 320 307 ANOSCEUR
7046 589 298 UUNET Technologies, Inc.
7132 365 295 Southwestern Bell Internet Se
852 736 280 Telus Advanced Communications
6347 350 277 SAVVIS Communications Corpora
4355 385 276 EarthLink, Inc.
705 442 240 UUNET Technologies, Inc.
209 578 239 Qwest
376 334 231 Reseau Interordinateurs Scien
1239 889 230 Sprint
1 661 225 GENUITY
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 /11:13 /12:46
/13:91 /14:238 /15:426 /16:7293 /17:1513 /18:2751
/19:7906 /20:7500 /21:5340 /22:8180 /23:9952 /24:64481
/25:175 /26:206 /27:105 /28:78 /29:54 /30:95
/31:1 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 639 1077 Supernet, Inc.
7843 575 764 Adelphia Corp.
702 536 868 UUNET - Commercial IP service
701 496 1780 UUNET Technologies, Inc.
690 465 517 Merit Network
7018 437 1359 AT&T
2828 370 472 XO Communications
18566 320 326 Covad Communications
6198 313 397 BellSouth Network Solutions,
1580 306 320 ANOSCEUR
6197 283 400 BellSouth Network Solutions,
7046 275 589 UUNET Technologies, Inc.
1239 274 889 Sprint
209 261 578 Qwest
3215 232 307 France Telecom Transpac
3301 227 381 TeliaNet Sweden
11492 224 229 Cable One
4355 218 385 EarthLink, Inc.
7066 205 306 Virginia Polytechnic Institut
19029 193 221 New Edge Networks
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 12:576 13:10 15:4 17:6 20:4
24:900 25:1 32:42 38:26 40:11 44:1
55:1 57:15 61:366 62:238 63:1905 64:1351
65:1610 66:1202 67:117 68:178 69:16 80:286
81:61 128:129 129:106 130:18 131:63 132:9
133:2 134:140 135:7 136:405 137:108 138:205
139:71 140:156 141:78 142:82 143:46 144:148
145:18 146:235 147:225 148:255 149:76 150:41
151:88 152:294 153:36 154:8 155:106 156:103
157:105 158:81 159:149 160:20 161:74 162:127
163:84 164:85 165:134 166:104 167:300 168:302
169:60 170:216 171:6 192:5426 193:2389 194:2003
195:844 196:433 198:3634 199:3133 200:2502 202:3518
203:4848 204:3284 205:2115 206:2365 207:2464 208:2547
209:2645 210:604 211:248 212:847 213:785 214:10
215:19 216:3222 217:506 218:50 219:3
End of report
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