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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 10 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 118358
Prefixes after maximum aggregation: 75602
Unique aggregates announced to Internet: 56551
Total ASes present in the Internet Routing Table: 14185
Origin-only ASes present in the Internet Routing Table: 12302
Origin ASes announcing only one prefix: 5568
Transit ASes present in the Internet Routing Table: 1883
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: 17
Illegal AS announcements present in the Routing Table: 6
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 38
Number of addresses announced to Internet: 1186053293
Equivalent to 70 /8s, 177 /16s and 188 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 58.6
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 54234
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19269
Total APNIC prefixes after maximum aggregation: 11464
Prefixes being announced from the APNIC address blocks: 17799
Unique aggregates announced from the APNIC address blocks: 11097
APNIC Region origin ASes present in the Internet Routing Table: 1654
APNIC Region origin ASes announcing only one prefix: 527
APNIC Region transit ASes present in the Internet Routing Table: 288
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 101131936
Equivalent to 6 /8s, 7 /16s and 38 /24s
Percentage of available APNIC address space announced: 66.5
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: 73916
Total ARIN prefixes after maximum aggregation: 46916
Prefixes being announced from the ARIN address blocks: 51566
Unique aggregates announced from the ARIN address blocks: 15741
ARIN Region origin ASes present in the Internet Routing Table: 7966
ARIN Region origin ASes announcing only one prefix: 2691
ARIN Region transit ASes present in the Internet Routing Table: 753
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 183984368
Equivalent to 10 /8s, 247 /16s and 96 /24s
Percentage of available ARIN address space announced: 68.5
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, 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: 20229
Total RIPE prefixes after maximum aggregation: 15118
Prefixes being announced from the RIPE address blocks: 16861
Unique aggregates announced from the RIPE address blocks: 11248
RIPE Region origin ASes present in the Internet Routing Table: 4186
RIPE Region origin ASes announcing only one prefix: 2269
RIPE Region transit ASes present in the Internet Routing Table: 763
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 121172992
Equivalent to 7 /8s, 56 /16s and 244 /24s
Percentage of available RIPE address space announced: 80.2
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, 28672 - 29695
RIPE Address Blocks 62/8, 80/7, 82/8, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4940
Total LACNIC prefixes after maximum aggregation: 2104
Prefixes being announced from the LACNIC address blocks: 4323
Unique aggregates announced from the LACNIC address blocks: 2798
LACNIC Region origin ASes present in the Internet Routing Table: 321
LACNIC Region origin ASes announcing only one prefix: 81
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 13
Number of LACNIC addresses announced to Internet: 11758592
Equivalent to 0 /8s, 179 /16s and 108 /24s
Percentage of available LACNIC address space announced: 70.1
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1158 1184 840 Telstra Pty Ltd
703 393 362 309 UUNET
2907 360 1768 335 SINET Japan
2764 343 341 312 connect.com.au pty ltd
17557 314 23 123 Pakistan Telecom
7474 306 280 205 Optus Communications Pty Ltd
4134 298 2376 99 Data Communications Bureau
4755 268 136 62 Videsh Sanchar Nigam Ltd. Aut
4814 248 79 15 China Telecom (Group)
17676 232 3602 27 XTAGE CORPORATION
4766 229 1807 152 Korea Internet Exchange for "
9583 190 33 12 Satyam Infoway Ltd.,
9443 184 57 73 Primus Telecommunications
9768 135 386 64 Korea Telecom
9800 131 191 31 CHINA UNICOM
4716 129 723 123 TTnet
7657 125 26 90 The Internet Group Limited
4621 120 11 67 UNINET-TH
4739 120 56 110 Commerical Internet eXchange
3786 111 681 92 DACOM Corporation
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3908 1765 1651 504 Supernet, Inc.
701 1737 9040 1241 UUNET Technologies, Inc.
7018 1397 7133 982 AT&T
1239 926 3137 660 Sprint
1 667 8105 437 GENUITY
852 650 1145 463 Telus Advanced Communications
7843 640 395 287 Adelphia Corp.
7046 585 861 282 UUNET Technologies, Inc.
209 527 2048 337 Qwest
4323 525 455 167 Time Warner Communications, I
690 508 74 321 Merit Network
7066 490 204 258 Virginia Polytechnic Institut
6197 444 262 192 BellSouth Network Solutions,
705 436 134 196 UUNET Technologies, Inc.
6198 415 178 198 BellSouth Network Solutions,
18566 411 96 5 Covad Communications
3561 409 2230 352 Cable & Wireless USA
4355 404 313 118 EarthLink, Inc.
3549 402 741 294 Global Crossing
15290 389 213 173 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 811 2325 674 UUNET - Commercial IP service
3301 370 1163 325 TeliaNet Sweden
3215 309 804 169 France Telecom Transpac
3320 245 1962 223 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
1257 213 416 203 SWIPnet Swedish IP Network
5515 210 783 175 Sonera Solution Autonomous Sy
719 192 306 129 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
5400 162 70 98 BT Ignite European Backbone
8708 152 42 145 Romania Data Systems S.A.
20858 146 17 4 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
2856 143 1302 131 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
8220 123 174 112 COLT Internet - International
3246 119 379 116 Song Networks
3269 111 752 63 TELECOM ITALIA
5511 104 193 83 France Telecom
3233 103 10 15 RNC - Romanian Natioanal R&D
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 284 107 67 ImpSat USA, Inc.
8151 206 332 112 UniNet S.A. de C.V.
7303 183 28 46 Telecom Argentina Stet-France
11172 166 86 33 Servicios Alestra S.A de C.V
6503 156 191 108 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 106 7 12 NSS, S.A.
10620 98 6 32 TVCABLE BOGOTA
6147 81 59 21 Telefonica Del Peru
11340 80 2 31 Red Universitaria Nacional
1916 74 425 41 Fundacao de Amparo a Pesquisa
15311 73 27 37 Telefonica Empresas
6535 71 4 19 Chilesat Servicios Empresari
4270 69 18 10 Red de Interconexion Universi
8065 67 6 14 Empresas Publicas de Medellin
7984 65 12 41 Global One Colombia
4926 60 4 50 Telintar S.A.
11992 58 4 28 Integrated Systems
15034 57 5 32 TIBA SA
7927 56 5 39 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
701 1737 496 UUNET Technologies, Inc.
7018 1397 415 AT&T
18566 411 406 Covad Communications
4323 525 358 Time Warner Communications, I
7843 640 353 Adelphia Corp.
1221 1158 318 Telstra Pty Ltd
7046 585 303 UUNET Technologies, Inc.
4151 351 293 USDA
1580 302 287 ANOSCEUR
4355 404 286 EarthLink, Inc.
6347 352 275 SAVVIS Communications Corpora
11492 273 272 Cable One
22927 289 267 TELEFONICA DE ARGENTINA
1239 926 266 Sprint
6197 444 252 BellSouth Network Solutions,
705 436 240 UUNET Technologies, Inc.
376 343 239 Reseau Interordinateurs Scien
4814 248 233 China Telecom (Group)
7066 490 232 Virginia Polytechnic Institut
1 667 230 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65021 PRIVATE 128.216.1.0/24 619 Department of Navy
65021 PRIVATE 128.216.4.0/24 619 Department of Navy
64516 PRIVATE 137.164.227.0/24 2150 California State Uni
64516 PRIVATE 137.164.228.0/22 2150 California State Uni
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
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
156.108.0.0/16 14041 Colorado State University / A
158.0.0.0/13 568 DISO-UNRRA
160.213.122.0/23 25440 Nestle European Data Center
160.213.248.0/21 25440 Nestle European Data Center
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 /9:3 /10:8 /11:11 /12:46
/13:91 /14:238 /15:440 /16:7316 /17:1541 /18:2769
/19:7965 /20:7649 /21:5504 /22:8329 /23:9954 /24:65598
/25:141 /26:170 /27:93 /28:94 /29:69 /30:229
/31:19 /32:64
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 939 1765 Supernet, Inc.
701 510 1737 UUNET Technologies, Inc.
702 496 811 UUNET - Commercial IP service
690 457 508 Merit Network
7018 457 1397 AT&T
7843 431 640 Adelphia Corp.
18566 404 411 Covad Communications
7066 387 490 Virginia Polytechnic Institut
6197 334 444 BellSouth Network Solutions,
6198 333 415 BellSouth Network Solutions,
1239 319 926 Sprint
22927 288 289 TELEFONICA DE ARGENTINA
1580 287 302 ANOSCEUR
7046 279 585 UUNET Technologies, Inc.
6140 271 284 ImpSat USA, Inc.
11492 270 273 Cable One
3215 236 309 France Telecom Transpac
11537 227 233 University Corporation for Ad
4355 224 404 EarthLink, Inc.
209 217 527 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
8:1 12:603 13:10 15:6 17:3 20:5
24:841 25:1 32:46 38:30 40:15 44:1
55:1 57:15 61:395 62:410 63:1910 64:1307
65:1679 66:1232 67:189 68:175 69:31 80:319
81:82 128:117 129:170 130:19 131:67 132:9
133:2 134:152 135:7 136:418 137:110 138:209
139:59 140:154 141:100 142:92 143:47 144:150
145:18 146:255 147:233 148:275 149:76 150:43
151:90 152:290 153:36 154:7 155:99 156:106
157:57 158:116 159:161 160:21 161:70 162:141
163:89 164:255 165:127 166:94 167:294 168:382
169:56 170:278 171:8 192:5421 193:2391 194:2017
195:884 196:446 198:3602 199:3075 200:2656 202:3530
203:4852 204:3308 205:2198 206:2364 207:2500 208:2582
209:2658 210:619 211:280 212:871 213:758 214:11
215:20 216:3073 217:535 218:66 219:14 220:1
End of report
