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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 17 Mar, 2003
Analysis Summary
----------------
BGP routing table entries examined: 122737
Prefixes after maximum aggregation: 77843
Unique aggregates announced to Internet: 59053
Total ASes present in the Internet Routing Table: 14798
Origin-only ASes present in the Internet Routing Table: 12847
Origin ASes announcing only one prefix: 5809
Transit ASes present in the Internet Routing Table: 1951
Transit-only ASes present in the Internet Routing Table: 65
Average AS path length visible in the Internet Routing Table: 5.4
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: 19
Number of addresses announced to Internet: 1200223109
Equivalent to 71 /8s, 137 /16s and 243 /24s
Percentage of available address space announced: 32.4
Percentage of allocated address space announced: 58.3
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 57609
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20710
Total APNIC prefixes after maximum aggregation: 12139
Prefixes being announced from the APNIC address blocks: 19163
Unique aggregates announced from the APNIC address blocks: 11695
APNIC Region origin ASes present in the Internet Routing Table: 1749
APNIC Region origin ASes announcing only one prefix: 519
APNIC Region transit ASes present in the Internet Routing Table: 287
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 107165856
Equivalent to 6 /8s, 99 /16s and 56 /24s
Percentage of available APNIC address space announced: 56.8
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 220/6
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75490
Total ARIN prefixes after maximum aggregation: 47899
Prefixes being announced from the ARIN address blocks: 53757
Unique aggregates announced from the ARIN address blocks: 16819
ARIN Region origin ASes present in the Internet Routing Table: 8221
ARIN Region origin ASes announcing only one prefix: 2783
ARIN Region transit ASes present in the Internet Routing Table: 782
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187580352
Equivalent to 11 /8s, 46 /16s and 63 /24s
Percentage of available ARIN address space announced: 69.9
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: 21227
Total RIPE prefixes after maximum aggregation: 15586
Prefixes being announced from the RIPE address blocks: 17721
Unique aggregates announced from the RIPE address blocks: 11816
RIPE Region origin ASes present in the Internet Routing Table: 4433
RIPE Region origin ASes announcing only one prefix: 2420
RIPE Region transit ASes present in the Internet Routing Table: 805
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 127897856
Equivalent to 7 /8s, 159 /16s and 145 /24s
Percentage of available RIPE address space announced: 76.2
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, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5305
Total LACNIC prefixes after maximum aggregation: 2219
Prefixes being announced from the LACNIC address blocks: 4687
Unique aggregates announced from the LACNIC address blocks: 3041
LACNIC Region origin ASes present in the Internet Routing Table: 331
LACNIC Region origin ASes announcing only one prefix: 87
LACNIC Region transit ASes present in the Internet Routing Table: 67
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 12278784
Equivalent to 0 /8s, 187 /16s and 92 /24s
Percentage of available LACNIC address space announced: 73.2
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 1098 1106 802 Telstra Pty Ltd
703 404 370 313 UUNET
2907 387 1959 366 SINET Japan
17557 367 26 138 Pakistan Telecom
2764 324 340 291 connect.com.au pty ltd
4134 309 2662 98 Data Communications Bureau
7474 306 275 207 Optus Communications Pty Ltd
4814 261 79 15 China Telecom (Group)
3786 249 772 211 DACOM Corporation
17676 232 3574 24 XTAGE CORPORATION
4755 230 135 74 Videsh Sanchar Nigam Ltd. Aut
9583 219 33 15 Satyam Infoway Ltd.,
4766 206 2074 155 Korea Internet Exchange for "
9443 179 57 77 Primus Telecommunications
9800 166 205 41 CHINA UNICOM
4765 152 10 14 World Net & Services Co., Ltd
9238 138 8 17 TATA ISP
4716 128 717 122 TTnet
4739 128 57 116 Commerical Internet eXchange
7539 127 164 120 TANet2, sponsored by NSC, TAI
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1571 8857 1127 UUNET Technologies, Inc.
7018 1367 7116 950 AT&T
3908 1261 1590 488 Supernet, Inc.
1239 981 3138 696 Sprint
1 663 8088 432 GENUITY
7843 603 413 190 Adelphia Corp.
3561 589 2368 342 Cable & Wireless USA
4323 555 490 172 Time Warner Communications, I
852 553 1107 435 Telus Advanced Communications
4151 539 691 60 USDA
209 534 2092 340 Qwest
18566 519 120 9 Covad Communications
6197 506 563 122 BellSouth Network Solutions,
690 503 73 313 Merit Network
7066 490 204 254 Virginia Polytechnic Institut
2386 489 480 246 AT&T Data Communications Serv
705 448 165 194 UUNET Technologies, Inc.
6198 448 197 196 BellSouth Network Solutions,
3549 405 695 308 Global Crossing
20115 395 167 264 Charter Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 783 2234 647 UUNET - Commercial IP service
3301 316 1175 306 TeliaNet Sweden
3215 307 818 172 France Telecom Transpac
3320 266 1996 229 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
5400 219 78 102 BT Ignite European Backbone
1257 217 338 194 SWIPnet Swedish IP Network
719 202 307 125 LANLINK autonomous system
5515 186 779 160 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 153 42 150 Romania Data Systems S.A.
20858 147 17 3 This AS will be used to conne
3303 142 517 141 Swisscom Ltd
8220 130 183 121 COLT Internet - International
12302 123 18 30 MobiFon S.A.
2856 118 1298 108 BTnet UK Regional network
3269 110 750 60 TELECOM ITALIA
3233 108 11 12 RNC - Romanian Natioanal R&D
3246 105 360 102 Song Networks
3352 101 670 31 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 292 98 105 ImpSat
7303 242 36 56 Telecom Argentina Stet-France
8151 216 357 118 UniNet S.A. de C.V.
11172 165 66 33 Servicios Alestra S.A de C.V
6503 156 175 111 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
11340 110 3 38 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
6147 76 62 20 Telefonica Del Peru
1916 75 306 45 Fundacao de Amparo a Pesquisa
11992 74 8 35 Integrated Systems
8065 73 6 18 Empresas Publicas de Medellin
6535 72 5 23 Chilesat Servicios Empresari
15311 71 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
7984 61 11 40 Global One Colombia
11830 60 4 19 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1261 773 Supernet, Inc.
18566 519 510 Covad Communications
4151 539 479 USDA
7018 1367 417 AT&T
7843 603 413 Adelphia Corp.
6197 506 384 BellSouth Network Solutions,
4323 555 383 Time Warner Communications, I
11492 323 321 Cable One
1221 1098 296 Telstra Pty Ltd
6347 371 291 SAVVIS Communications Corpora
1239 981 285 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
4355 391 279 EarthLink, Inc.
705 448 254 UUNET Technologies, Inc.
6198 448 252 BellSouth Network Solutions,
3561 589 247 Cable & Wireless USA
4814 261 246 China Telecom (Group)
2386 489 243 AT&T Data Communications Serv
27364 258 240 Armstrong Cable Services
7066 490 236 Virginia Polytechnic Institut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64524 PRIVATE 198.189.134.0/24 2151 California State Uni
64524 PRIVATE 198.189.135.0/24 2151 California State Uni
64524 PRIVATE 198.189.136.0/24 2151 California State Uni
64524 PRIVATE 198.189.137.0/24 2151 California State Uni
64524 PRIVATE 198.189.138.0/24 2151 California State Uni
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.44.0.0/19 702 UUNET - Commercial IP service
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
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.135.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.158.249.0/24 27319 INTERNET SOFTWARE CONSORTIUM,
192.172.0.0/19 568 DISO-UNRRA
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 /11:13 /12:46
/13:89 /14:238 /15:448 /16:7340 /17:1611 /18:2909
/19:8238 /20:8171 /21:5857 /22:8871 /23:10652 /24:67465
/25:168 /26:192 /27:109 /28:87 /29:63 /30:78
/31:4 /32:60
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 829 1261 Supernet, Inc.
18566 514 519 Covad Communications
702 486 783 UUNET - Commercial IP service
7018 474 1367 AT&T
690 452 503 Merit Network
701 452 1571 UUNET Technologies, Inc.
7066 389 490 Virginia Polytechnic Institut
1239 370 981 Sprint
6197 368 506 BellSouth Network Solutions,
7843 361 603 Adelphia Corp.
6198 357 448 BellSouth Network Solutions,
11492 321 323 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
2386 289 489 AT&T Data Communications Serv
6140 279 292 ImpSat
20115 271 395 Charter Communications
27364 250 258 Armstrong Cable Services
7303 241 242 Telecom Argentina Stet-France
3215 232 307 France Telecom Transpac
209 223 534 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:658 13:1 15:4 17:2 20:10 24:912
25:1 32:90 34:1 38:61 40:18 44:2
55:1 57:15 61:451 62:501 63:1924 64:1435
65:1920 66:1554 67:221 68:299 69:62 80:334
81:96 128:150 129:224 130:42 131:83 132:11
133:11 134:146 135:4 136:113 137:116 138:105
139:65 140:145 141:124 142:95 143:47 144:99
145:18 146:264 147:86 148:275 149:73 150:43
151:113 152:251 153:51 154:2 155:108 156:43
157:45 158:123 159:138 160:33 161:58 162:126
163:84 164:304 165:142 166:74 167:319 168:397
169:55 170:308 171:6 192:5285 193:2390 194:2002
195:980 196:473 198:3590 199:3226 200:2900 202:3657
203:5085 204:3068 205:2010 206:2392 207:2422 208:2678
209:2801 210:740 211:331 212:958 213:767 214:21
215:21 216:3238 217:594 218:83 219:9 220:52
End of report
