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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 Mon 14 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116066
Prefixes after maximum aggregation: 74626
Unique aggregates announced to Internet: 55474
Total ASes present in the Internet Routing Table: 13899
Origin-only ASes present in the Internet Routing Table: 12032
Origin ASes announcing only one prefix: 5386
Transit ASes present in the Internet Routing Table: 1867
Transit-only ASes present in the Internet Routing Table: 57
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 19
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: 1192502152
Equivalent to 71 /8s, 20 /16s and 35 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 48285
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18864
Total APNIC prefixes after maximum aggregation: 11400
Prefixes being announced from the APNIC address blocks: 17371
Unique aggregates announced from the APNIC address blocks: 11021
APNIC Region origin ASes present in the Internet Routing Table: 1618
APNIC Region origin ASes announcing only one prefix: 518
APNIC Region transit ASes present in the Internet Routing Table: 277
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 98262944
Equivalent to 5 /8s, 219 /16s and 95 /24s
Percentage of available APNIC address space announced: 64.6
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: 72795
Total ARIN prefixes after maximum aggregation: 46228
Prefixes being announced from the ARIN address blocks: 50889
Unique aggregates announced from the ARIN address blocks: 15372
ARIN Region origin ASes present in the Internet Routing Table: 7819
ARIN Region origin ASes announcing only one prefix: 2576
ARIN Region transit ASes present in the Internet Routing Table: 752
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 181443424
Equivalent to 10 /8s, 208 /16s and 155 /24s
Percentage of available ARIN address space announced: 67.6
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: 19735
Total RIPE prefixes after maximum aggregation: 14941
Prefixes being announced from the RIPE address blocks: 16409
Unique aggregates announced from the RIPE address blocks: 10892
RIPE Region origin ASes present in the Internet Routing Table: 4090
RIPE Region origin ASes announcing only one prefix: 2211
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: 19
Number of RIPE addresses announced to Internet: 115890304
Equivalent to 6 /8s, 232 /16s and 88 /24s
Percentage of available RIPE address space announced: 76.8
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: 4672
Total LACNIC prefixes after maximum aggregation: 2057
Prefixes being announced from the LACNIC address blocks: 4114
Unique aggregates announced from the LACNIC address blocks: 2623
LACNIC Region origin ASes present in the Internet Routing Table: 315
LACNIC Region origin ASes announcing only one prefix: 81
LACNIC Region transit ASes present in the Internet Routing Table: 67
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11444224
Equivalent to 0 /8s, 174 /16s and 160 /24s
Percentage of available LACNIC address space announced: 68.2
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 878 Telstra Pty Ltd
703 394 368 310 UUNET
2907 352 1768 331 SINET Japan
2764 342 356 314 connect.com.au pty ltd
7474 302 275 206 Optus Communications Pty Ltd
4134 293 2268 95 Data Communications Bureau
17557 293 22 114 Pakistan Telecom
4755 267 138 71 Videsh Sanchar Nigam Ltd. Aut
4766 249 1808 157 Korea Internet Exchange for "
4814 225 79 15 China Telecom (Group)
17676 224 3506 31 XTAGE CORPORATION
9443 184 57 71 Primus Telecommunications
9583 163 32 5 Satyam Infoway Ltd.,
4515 135 102 76 Star Internet Services Ltd.
9768 134 385 73 Korea Telecom
4716 128 736 122 TTnet
7657 127 22 84 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 1788 9199 1279 UUNET Technologies, Inc.
7018 1350 7182 940 AT&T
3908 1063 1651 505 Supernet, Inc.
1239 872 3186 655 Sprint
852 736 1145 456 Telus Advanced Communications
7843 729 371 303 Adelphia Corp.
1 655 8042 433 GENUITY
7132 595 672 69 Southwestern Bell Internet Se
7046 580 878 299 UUNET Technologies, Inc.
209 574 2064 335 Qwest
4323 518 439 164 Time Warner Communications, I
690 517 75 324 Merit Network
7066 489 204 257 Virginia Polytechnic Institut
2548 437 1118 269 Business Internet, Inc.
705 410 130 200 UUNET Technologies, Inc.
3549 405 725 290 Global Crossing
6198 395 180 195 BellSouth Network Solutions,
6197 392 601 40 BellSouth Network Solutions,
4355 379 292 104 EarthLink, Inc.
2914 364 2020 357 Verio, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 872 2406 727 UUNET - Commercial IP service
3301 382 1164 337 TeliaNet Sweden
3215 295 661 171 France Telecom Transpac
3320 243 1966 220 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 212 783 176 Sonera Solution Autonomous Sy
5400 205 83 97 BT Ignite European Backbone
1257 204 444 200 SWIPnet Swedish IP Network
719 188 307 131 LANLINK autonomous system
786 175 1857 175 The JANET IP Service
2856 160 790 138 BTnet UK Regional network
8708 154 41 146 Romania Data Systems S.A.
3303 144 532 143 Swisscom Ltd
3246 122 373 115 Song Networks
12302 122 17 29 MobiFon S.A.
8220 112 168 104 COLT Internet - International
5511 110 192 88 France Telecom
3233 107 10 8 RNC - Romanian Natioanal R&D
3269 106 690 64 TELECOM ITALIA
2874 103 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 204 330 111 UniNet S.A. de C.V.
7303 174 27 49 Telecom Argentina Stet-France
11172 169 88 34 Servicios Alestra S.A de C.V
6140 153 78 44 ImpSat USA, Inc.
6503 150 174 108 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
11340 79 2 24 Red Universitaria Nacional
15311 76 26 32 Telefonica Empresas
11992 72 7 30 Integrated Systems
1916 71 404 42 Fundacao de Amparo a Pesquisa
4270 66 18 10 Red de Interconexion Universi
15034 64 5 33 TIBA SA
4926 62 4 50 Telintar S.A.
7984 62 27 42 Global One Colombia
2277 60 16 3 ECUANET - CORPORACION ECUATOR
8065 59 6 16 Empresas Publicas de Medellin
7927 58 4 40 Global One Venezuela
6535 55 4 15 Chilesat Servicios Empresari
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1063 558 Supernet, Inc.
7132 595 526 Southwestern Bell Internet Se
7843 729 426 Adelphia Corp.
7018 1350 410 AT&T
4323 518 354 Time Warner Communications, I
6197 392 352 BellSouth Network Solutions,
1221 1196 318 Telstra Pty Ltd
1580 320 308 ANOSCEUR
18566 298 294 Covad Communications
7046 580 281 UUNET Technologies, Inc.
852 736 280 Telus Advanced Communications
4151 292 276 USDA
4355 379 275 EarthLink, Inc.
6347 347 272 SAVVIS Communications Corpora
209 574 239 Qwest
7066 489 232 Virginia Polytechnic Institut
376 342 232 Reseau Interordinateurs Scien
1 655 222 GENUITY
1239 872 217 Sprint
11492 225 211 Cable One
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
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 /12:38
/13:90 /14:240 /15:430 /16:7268 /17:1505 /18:2720
/19:7881 /20:7552 /21:5318 /22:8206 /23:9928 /24:64048
/25:177 /26:220 /27:116 /28:77 /29:56 /30:101
/31:1 /32:51
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 633 1063 Supernet, Inc.
7843 541 729 Adelphia Corp.
702 537 872 UUNET - Commercial IP service
701 493 1788 UUNET Technologies, Inc.
690 465 517 Merit Network
7018 431 1350 AT&T
7066 387 489 Virginia Polytechnic Institut
6198 311 395 BellSouth Network Solutions,
1580 307 320 ANOSCEUR
18566 292 298 Covad Communications
6197 276 392 BellSouth Network Solutions,
7046 267 580 UUNET Technologies, Inc.
1239 259 872 Sprint
209 256 574 Qwest
3215 227 295 France Telecom Transpac
3301 227 382 TeliaNet Sweden
11492 220 225 Cable One
4355 217 379 EarthLink, Inc.
705 186 410 UUNET Technologies, Inc.
3320 185 243 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 12:561 13:10 15:4 17:7 20:4
24:846 25:1 32:42 38:26 40:9 44:1
55:1 57:13 61:358 62:243 63:1890 64:1284
65:1590 66:1194 67:113 68:146 69:8 80:304
81:62 128:126 129:126 130:19 131:62 132:9
133:2 134:128 135:9 136:511 137:106 138:202
139:70 140:167 141:66 142:68 143:49 144:151
145:17 146:240 147:224 148:247 149:122 150:41
151:77 152:295 153:38 154:8 155:104 156:102
157:104 158:72 159:138 160:21 161:74 162:123
163:83 164:258 165:127 166:104 167:288 168:301
169:62 170:194 171:6 192:5380 193:2388 194:2011
195:822 196:439 198:3629 199:3078 200:2527 202:3459
203:4818 204:3282 205:2117 206:2385 207:2474 208:2570
209:2562 210:598 211:250 212:880 213:772 214:9
215:19 216:2952 217:513 218:50 219:2
End of report
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