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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 11 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 115917
Prefixes after maximum aggregation: 74544
Unique aggregates announced to Internet: 55253
Total ASes present in the Internet Routing Table: 13892
Origin-only ASes present in the Internet Routing Table: 12022
Origin ASes announcing only one prefix: 5388
Transit ASes present in the Internet Routing Table: 1870
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: 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: 1191694728
Equivalent to 71 /8s, 7 /16s and 209 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 48162
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18836
Total APNIC prefixes after maximum aggregation: 11419
Prefixes being announced from the APNIC address blocks: 17337
Unique aggregates announced from the APNIC address blocks: 10989
APNIC Region origin ASes present in the Internet Routing Table: 1618
APNIC Region origin ASes announcing only one prefix: 517
APNIC Region transit ASes present in the Internet Routing Table: 281
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 98085280
Equivalent to 5 /8s, 216 /16s and 169 /24s
Percentage of available APNIC address space announced: 64.5
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: 72722
Total ARIN prefixes after maximum aggregation: 46175
Prefixes being announced from the ARIN address blocks: 50937
Unique aggregates announced from the ARIN address blocks: 15350
ARIN Region origin ASes present in the Internet Routing Table: 7813
ARIN Region origin ASes announcing only one prefix: 2573
ARIN Region transit ASes present in the Internet Routing Table: 748
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 181451616
Equivalent to 10 /8s, 208 /16s and 187 /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: 19663
Total RIPE prefixes after maximum aggregation: 14884
Prefixes being announced from the RIPE address blocks: 16344
Unique aggregates announced from the RIPE address blocks: 10797
RIPE Region origin ASes present in the Internet Routing Table: 4086
RIPE Region origin ASes announcing only one prefix: 2218
RIPE Region transit ASes present in the Internet Routing Table: 759
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 115607936
Equivalent to 6 /8s, 228 /16s and 9 /24s
Percentage of available RIPE address space announced: 76.6
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: 4696
Total LACNIC prefixes after maximum aggregation: 2066
Prefixes being announced from the LACNIC address blocks: 4135
Unique aggregates announced from the LACNIC address blocks: 2629
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: 70
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11462912
Equivalent to 0 /8s, 174 /16s and 233 /24s
Percentage of available LACNIC address space announced: 68.3
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 1200 1187 880 Telstra Pty Ltd
703 399 375 315 UUNET
2907 361 1831 341 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 292 21 113 Pakistan Telecom
4755 271 139 74 Videsh Sanchar Nigam Ltd. Aut
4766 249 1808 157 Korea Internet Exchange for "
4814 224 79 15 China Telecom (Group)
17676 224 3506 31 XTAGE CORPORATION
9443 186 57 72 Primus Telecommunications
9583 175 32 5 Satyam Infoway Ltd.,
4515 136 102 77 Star Internet Services Ltd.
9768 134 385 73 Korea Telecom
4716 128 736 122 TTnet
7657 128 22 85 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 9199 1280 UUNET Technologies, Inc.
7018 1347 7180 937 AT&T
3908 1050 1651 504 Supernet, Inc.
1239 876 3186 654 Sprint
852 731 1145 453 Telus Advanced Communications
7843 720 371 307 Adelphia Corp.
1 657 8044 435 GENUITY
7132 593 672 69 Southwestern Bell Internet Se
209 578 2065 336 Qwest
7046 578 878 303 UUNET Technologies, Inc.
690 518 75 325 Merit Network
4323 517 439 165 Time Warner Communications, I
7066 490 204 257 Virginia Polytechnic Institut
2548 440 1118 271 Business Internet, Inc.
705 409 130 199 UUNET Technologies, Inc.
3549 407 725 293 Global Crossing
6198 398 177 199 BellSouth Network Solutions,
6197 392 601 40 BellSouth Network Solutions,
4355 379 292 104 EarthLink, Inc.
2914 369 2027 362 Verio, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 873 2407 728 UUNET - Commercial IP service
3301 381 1164 337 TeliaNet Sweden
3215 296 677 172 France Telecom Transpac
3320 243 1966 220 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 213 783 176 Sonera Solution Autonomous Sy
1257 205 444 201 SWIPnet Swedish IP Network
5400 205 83 97 BT Ignite European Backbone
719 192 307 131 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
8708 163 41 146 Romania Data Systems S.A.
2856 160 790 138 BTnet UK Regional network
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 111 192 89 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 203 314 112 UniNet S.A. de C.V.
11172 169 88 34 Servicios Alestra S.A de C.V
7303 165 25 55 Telecom Argentina Stet-France
6140 154 78 45 ImpSat USA, Inc.
6503 149 174 107 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
1916 74 425 41 Fundacao de Amparo a Pesquisa
15034 73 5 33 TIBA SA
11992 72 7 30 Integrated Systems
4270 68 18 10 Red de Interconexion Universi
4926 63 4 51 Telintar S.A.
2277 62 16 3 ECUANET - CORPORACION ECUATOR
7984 62 27 42 Global One Colombia
8065 60 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 1050 546 Supernet, Inc.
7132 593 524 Southwestern Bell Internet Se
7843 720 413 Adelphia Corp.
7018 1347 410 AT&T
4323 517 352 Time Warner Communications, I
6197 392 352 BellSouth Network Solutions,
1221 1200 320 Telstra Pty Ltd
1580 320 308 ANOSCEUR
18566 298 294 Covad Communications
852 731 278 Telus Advanced Communications
4151 292 276 USDA
7046 578 275 UUNET Technologies, Inc.
4355 379 275 EarthLink, Inc.
6347 346 271 SAVVIS Communications Corpora
209 578 242 Qwest
7066 490 233 Virginia Polytechnic Institut
376 341 231 Reseau Interordinateurs Scien
1239 876 222 Sprint
1 657 222 GENUITY
705 409 210 UUNET Technologies, Inc.
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 /14:238 /15:429 /16:7264 /17:1502 /18:2715
/19:7878 /20:7532 /21:5315 /22:8139 /23:9912 /24:64037
/25:176 /26:221 /27:116 /28:75 /29:54 /30:101
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 621 1050 Supernet, Inc.
702 538 873 UUNET - Commercial IP service
7843 532 720 Adelphia Corp.
701 492 1786 UUNET Technologies, Inc.
690 465 518 Merit Network
7018 429 1347 AT&T
7066 388 490 Virginia Polytechnic Institut
6198 318 398 BellSouth Network Solutions,
1580 307 320 ANOSCEUR
18566 292 298 Covad Communications
6197 276 392 BellSouth Network Solutions,
7046 263 578 UUNET Technologies, Inc.
1239 262 876 Sprint
209 258 578 Qwest
3215 227 296 France Telecom Transpac
3301 226 381 TeliaNet Sweden
11492 218 223 Cable One
4355 217 379 EarthLink, Inc.
705 186 409 UUNET Technologies, Inc.
3320 185 243 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 12:560 13:10 15:4 17:7 20:4
24:836 25:1 32:42 38:24 40:8 44:1
55:1 57:14 61:351 62:246 63:1882 64:1295
65:1585 66:1204 67:110 68:139 69:8 80:302
81:62 128:119 129:126 130:19 131:54 132:9
133:2 134:127 135:9 136:513 137:105 138:154
139:70 140:167 141:66 142:69 143:49 144:153
145:17 146:240 147:224 148:247 149:79 150:41
151:77 152:295 153:38 154:8 155:104 156:102
157:106 158:73 159:138 160:20 161:74 162:123
163:85 164:260 165:127 166:105 167:284 168:299
169:62 170:193 171:6 192:5378 193:2406 194:1974
195:822 196:439 198:3629 199:3081 200:2549 202:3451
203:4806 204:3286 205:2128 206:2389 207:2491 208:2571
209:2591 210:596 211:276 212:888 213:743 214:9
215:19 216:3006 217:520 218:49 219:2
End of report
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