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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 01 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 115276
Prefixes after maximum aggregation: 74322
Unique aggregates announced to Internet: 55427
Total ASes present in the Internet Routing Table: 13830
Origin-only ASes present in the Internet Routing Table: 11950
Origin ASes announcing only one prefix: 5355
Transit ASes present in the Internet Routing Table: 1880
Transit-only ASes present in the Internet Routing Table: 60
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: 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: 1189681132
Equivalent to 70 /8s, 233 /16s and 23 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 47532
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18735
Total APNIC prefixes after maximum aggregation: 11335
Prefixes being announced from the APNIC address blocks: 17257
Unique aggregates announced from the APNIC address blocks: 10961
APNIC Region origin ASes present in the Internet Routing Table: 1619
APNIC Region origin ASes announcing only one prefix: 525
APNIC Region transit ASes present in the Internet Routing Table: 281
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 97721888
Equivalent to 5 /8s, 211 /16s and 30 /24s
Percentage of available APNIC address space announced: 64.3
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: 72162
Total ARIN prefixes after maximum aggregation: 46057
Prefixes being announced from the ARIN address blocks: 50591
Unique aggregates announced from the ARIN address blocks: 15562
ARIN Region origin ASes present in the Internet Routing Table: 7769
ARIN Region origin ASes announcing only one prefix: 2542
ARIN Region transit ASes present in the Internet Routing Table: 758
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 181173312
Equivalent to 10 /8s, 204 /16s and 124 /24s
Percentage of available ARIN address space announced: 67.5
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
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: 19581
Total RIPE prefixes after maximum aggregation: 14848
Prefixes being announced from the RIPE address blocks: 16273
Unique aggregates announced from the RIPE address blocks: 10777
RIPE Region origin ASes present in the Internet Routing Table: 4068
RIPE Region origin ASes announcing only one prefix: 2208
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: 14
Number of RIPE addresses announced to Internet: 113662848
Equivalent to 6 /8s, 198 /16s and 91 /24s
Percentage of available RIPE address space announced: 75.3
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: 4792
Total LACNIC prefixes after maximum aggregation: 2082
Prefixes being announced from the LACNIC address blocks: 4208
Unique aggregates announced from the LACNIC address blocks: 2614
LACNIC Region origin ASes present in the Internet Routing Table: 315
LACNIC Region origin ASes announcing only one prefix: 80
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11316480
Equivalent to 0 /8s, 172 /16s and 173 /24s
Percentage of available LACNIC address space announced: 67.5
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 1196 1187 880 Telstra Pty Ltd
703 397 368 312 UUNET
2907 361 1832 340 SINET Japan
2764 345 357 317 connect.com.au pty ltd
7474 305 275 205 Optus Communications Pty Ltd
4134 292 2268 96 Data Communications Bureau
17557 289 21 111 Pakistan Telecom
4755 264 125 72 Videsh Sanchar Nigam Ltd. Aut
4766 249 1808 157 Korea Internet Exchange for "
4814 224 80 16 China Telecom (Group)
17676 221 3458 32 XTAGE CORPORATION
9443 185 57 70 Primus Telecommunications
9583 171 32 5 Satyam Infoway Ltd.,
4515 138 102 79 Star Internet Services Ltd.
9768 136 385 74 Korea Telecom
7657 128 22 85 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 116 1049 105 NTT Communications Corporatio
9498 109 8 21 BHARTI BT INTERNET LTD.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1788 9230 1287 UUNET Technologies, Inc.
7018 1324 7184 933 AT&T
3908 1047 1652 507 Supernet, Inc.
1239 848 3178 650 Sprint
852 754 1145 456 Telus Advanced Communications
7843 715 371 299 Adelphia Corp.
1 664 8089 439 GENUITY
7132 603 638 140 Southwestern Bell Internet Se
7046 589 879 310 UUNET Technologies, Inc.
4323 524 435 165 Time Warner Communications, I
209 520 2066 348 Qwest
690 518 75 325 Merit Network
7066 490 204 258 Virginia Polytechnic Institut
2548 443 1118 273 Business Internet, Inc.
3549 415 726 300 Global Crossing
705 411 130 201 UUNET Technologies, Inc.
4355 383 292 104 EarthLink, Inc.
6197 383 597 39 BellSouth Network Solutions,
2914 368 2027 361 Verio, Inc.
15290 357 230 174 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 871 2406 726 UUNET - Commercial IP service
3301 389 907 341 TeliaNet Sweden
3215 294 677 170 France Telecom Transpac
3320 247 1966 225 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 214 783 177 Sonera Solution Autonomous Sy
5400 209 84 97 BT Ignite European Backbone
1257 203 444 200 SWIPnet Swedish IP Network
719 191 306 130 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 151 41 143 Romania Data Systems S.A.
3303 143 532 142 Swisscom Ltd
2856 135 788 125 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
3246 123 373 116 Song Networks
5511 111 191 89 France Telecom
8220 109 168 101 COLT Internet - International
3269 106 690 64 TELECOM ITALIA
2874 104 85 40 Global One Services AB
3233 103 10 8 RNC - Romanian Natioanal R&D
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 202 314 112 UniNet S.A. de C.V.
7303 172 27 50 Telecom Argentina Stet-France
11172 168 88 34 Servicios Alestra S.A de C.V
6503 158 191 113 AVANTEL, S.A.
10834 146 75 35 ADVANCE TELECOMUNICACIONES S.
16814 107 7 13 NSS, S.A.
13999 103 19 8 Mega Cable S.A. de C.V.
6140 99 76 27 ImpSat USA, Inc.
10620 93 6 29 TVCABLE BOGOTA
11340 79 2 24 Red Universitaria Nacional
15034 72 5 32 TIBA SA
11992 70 7 30 Integrated Systems
1916 69 389 37 Fundacao de Amparo a Pesquisa
4270 68 18 10 Red de Interconexion Universi
15311 67 24 31 Telefonica Empresas
2277 65 16 3 ECUANET - CORPORACION ECUATOR
7984 64 27 42 Global One Colombia
4926 63 4 51 Telintar S.A.
8065 59 6 16 Empresas Publicas de Medellin
16528 57 5 35 ImpSat S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1047 540 Supernet, Inc.
7132 603 463 Southwestern Bell Internet Se
7843 715 416 Adelphia Corp.
7018 1324 391 AT&T
4323 524 359 Time Warner Communications, I
6197 383 344 BellSouth Network Solutions,
1221 1196 316 Telstra Pty Ltd
852 754 298 Telus Advanced Communications
7046 589 279 UUNET Technologies, Inc.
4355 383 279 EarthLink, Inc.
18566 280 276 Covad Communications
6347 341 267 SAVVIS Communications Corpora
4151 279 264 USDA
7066 490 232 Virginia Polytechnic Institut
376 342 232 Reseau Interordinateurs Scien
1 664 225 GENUITY
705 411 210 UUNET Technologies, Inc.
4814 224 208 China Telecom (Group)
11492 221 207 Cable One
1580 211 199 ANOSCEUR
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65011 PRIVATE 207.8.204.0/24 4231 You Tools Corporatio
65011 PRIVATE 207.8.227.0/24 4231 You Tools Corporatio
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
65506 PRIVATE 207.106.30.0/24 4231 You Tools Corporatio
65011 PRIVATE 207.106.58.0/24 4231 You Tools Corporatio
65011 PRIVATE 207.106.90.0/24 4231 You Tools Corporatio
65011 PRIVATE 207.106.122.0/24 4231 You Tools Corporatio
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 /8:18 /9:6 /10:7 /11:12 /12:37
/13:88 /14:234 /15:428 /16:7267 /17:1501 /18:2687
/19:7861 /20:7549 /21:5293 /22:8085 /23:9805 /24:63590
/25:166 /26:224 /27:117 /28:85 /29:51 /30:108
/31:0 /32:57
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 617 1047 Supernet, Inc.
702 535 871 UUNET - Commercial IP service
7843 526 715 Adelphia Corp.
701 488 1788 UUNET Technologies, Inc.
690 465 518 Merit Network
7018 408 1324 AT&T
7066 388 490 Virginia Polytechnic Institut
18566 276 280 Covad Communications
7046 275 589 UUNET Technologies, Inc.
6197 268 383 BellSouth Network Solutions,
6198 241 311 BellSouth Network Solutions,
1239 239 848 Sprint
3301 232 389 TeliaNet Sweden
3215 225 294 France Telecom Transpac
4355 221 383 EarthLink, Inc.
11492 216 221 Cable One
1580 198 211 ANOSCEUR
209 192 520 Qwest
3320 188 247 Deutsche Telekom AG
705 187 411 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 12:554 13:10 15:4 17:7 20:4
24:852 25:1 32:41 38:24 40:7 44:1
55:1 57:14 61:357 62:241 63:1851 64:1278
65:1513 66:1185 67:110 68:113 80:295 81:60
128:74 129:124 130:19 131:55 132:11 133:2
134:130 135:9 136:593 137:101 138:153 139:70
140:151 141:74 142:71 143:48 144:143 145:17
146:241 147:143 148:248 149:79 150:42 151:61
152:296 153:38 154:9 155:105 156:102 157:110
158:65 159:136 160:23 161:73 162:123 163:88
164:260 165:127 166:106 167:271 168:300 169:57
170:178 171:3 192:5390 193:2379 194:2020 195:818
196:428 198:3593 199:3081 200:2613 202:3392 203:4795
204:3286 205:2136 206:2406 207:2486 208:2554 209:2591
210:601 211:245 212:877 213:739 214:8 215:19
216:2927 217:501 218:47 219:2
End of report
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