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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 09 Mar, 2003
Analysis Summary
----------------
BGP routing table entries examined: 122003
Prefixes after maximum aggregation: 77669
Unique aggregates announced to Internet: 58968
Total ASes present in the Internet Routing Table: 14752
Origin-only ASes present in the Internet Routing Table: 12806
Origin ASes announcing only one prefix: 5784
Transit ASes present in the Internet Routing Table: 1946
Transit-only ASes present in the Internet Routing Table: 68
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: 11
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 17
Number of addresses announced to Internet: 1199854981
Equivalent to 71 /8s, 132 /16s and 85 /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: 57179
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20576
Total APNIC prefixes after maximum aggregation: 12108
Prefixes being announced from the APNIC address blocks: 19063
Unique aggregates announced from the APNIC address blocks: 11663
APNIC Region origin ASes present in the Internet Routing Table: 1743
APNIC Region origin ASes announcing only one prefix: 522
APNIC Region transit ASes present in the Internet Routing Table: 294
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 106914720
Equivalent to 6 /8s, 95 /16s and 99 /24s
Percentage of available APNIC address space announced: 56.7
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: 75052
Total ARIN prefixes after maximum aggregation: 47837
Prefixes being announced from the ARIN address blocks: 53302
Unique aggregates announced from the ARIN address blocks: 16776
ARIN Region origin ASes present in the Internet Routing Table: 8196
ARIN Region origin ASes announcing only one prefix: 2770
ARIN Region transit ASes present in the Internet Routing Table: 778
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187673280
Equivalent to 11 /8s, 47 /16s and 170 /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: 21192
Total RIPE prefixes after maximum aggregation: 15554
Prefixes being announced from the RIPE address blocks: 17705
Unique aggregates announced from the RIPE address blocks: 11793
RIPE Region origin ASes present in the Internet Routing Table: 4418
RIPE Region origin ASes announcing only one prefix: 2407
RIPE Region transit ASes present in the Internet Routing Table: 797
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 127716608
Equivalent to 7 /8s, 156 /16s and 205 /24s
Percentage of available RIPE address space announced: 76.1
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: 5173
Total LACNIC prefixes after maximum aggregation: 2170
Prefixes being announced from the LACNIC address blocks: 4614
Unique aggregates announced from the LACNIC address blocks: 3034
LACNIC Region origin ASes present in the Internet Routing Table: 329
LACNIC Region origin ASes announcing only one prefix: 85
LACNIC Region transit ASes present in the Internet Routing Table: 66
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 12241920
Equivalent to 0 /8s, 186 /16s and 204 /24s
Percentage of available LACNIC address space announced: 73.0
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 1109 1119 805 Telstra Pty Ltd
703 402 369 313 UUNET
2907 391 1976 368 SINET Japan
17557 363 26 136 Pakistan Telecom
2764 327 341 294 connect.com.au pty ltd
4134 304 2637 96 Data Communications Bureau
7474 303 275 206 Optus Communications Pty Ltd
4814 263 79 15 China Telecom (Group)
3786 248 774 210 DACOM Corporation
4755 232 133 73 Videsh Sanchar Nigam Ltd. Aut
17676 232 3574 24 XTAGE CORPORATION
9583 217 33 13 Satyam Infoway Ltd.,
4766 208 2074 155 Korea Internet Exchange for "
9443 178 57 76 Primus Telecommunications
9800 166 205 41 CHINA UNICOM
4765 151 10 14 World Net & Services Co., Ltd
9238 138 8 17 TATA ISP
4739 128 57 116 Commerical Internet eXchange
4716 127 733 121 TTnet
9768 125 384 64 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1596 8874 1146 UUNET Technologies, Inc.
7018 1379 7150 954 AT&T
3908 1251 1590 487 Supernet, Inc.
1239 978 3137 693 Sprint
1 666 8088 435 GENUITY
7843 590 409 212 Adelphia Corp.
852 574 1107 442 Telus Advanced Communications
4323 554 474 172 Time Warner Communications, I
4151 533 691 59 USDA
209 532 2092 341 Qwest
18566 511 118 10 Covad Communications
690 500 73 310 Merit Network
3561 498 2304 344 Cable & Wireless USA
6197 498 555 114 BellSouth Network Solutions,
7066 490 204 254 Virginia Polytechnic Institut
2386 482 478 243 AT&T Data Communications Serv
705 450 165 196 UUNET Technologies, Inc.
6198 448 196 199 BellSouth Network Solutions,
3549 404 694 309 Global Crossing
20115 397 171 265 Charter Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 790 2233 653 UUNET - Commercial IP service
3215 314 818 172 France Telecom Transpac
3301 314 1142 302 TeliaNet Sweden
3320 266 1996 229 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 219 370 196 SWIPnet Swedish IP Network
719 204 307 127 LANLINK autonomous system
5400 198 70 98 BT Ignite European Backbone
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 148 17 3 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
8220 126 182 117 COLT Internet - International
12302 122 17 29 MobiFon S.A.
2856 117 1298 107 BTnet UK Regional network
3269 111 751 61 TELECOM ITALIA
3233 108 11 12 RNC - Romanian Natioanal R&D
3246 105 360 102 Song Networks
5511 105 175 81 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 284 98 104 ImpSat
7303 240 36 49 Telecom Argentina Stet-France
8151 214 341 116 UniNet S.A. de C.V.
11172 161 66 33 Servicios Alestra S.A de C.V
6503 158 191 110 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
10620 107 7 31 TVCABLE BOGOTA
6147 75 62 20 Telefonica Del Peru
11992 74 8 35 Integrated Systems
1916 73 306 44 Fundacao de Amparo a Pesquisa
6535 72 5 23 Chilesat Servicios Empresari
8065 72 6 21 Empresas Publicas de Medellin
15311 71 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
7984 66 11 42 Global One Colombia
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
11830 61 4 20 Instituto Costarricense de El
15034 60 5 31 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1251 764 Supernet, Inc.
18566 511 501 Covad Communications
4151 533 474 USDA
7018 1379 425 AT&T
6197 498 384 BellSouth Network Solutions,
4323 554 382 Time Warner Communications, I
7843 590 378 Adelphia Corp.
11492 322 319 Cable One
1221 1109 304 Telstra Pty Ltd
6347 366 287 SAVVIS Communications Corpora
1239 978 285 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
4355 390 278 EarthLink, Inc.
705 450 254 UUNET Technologies, Inc.
6198 448 249 BellSouth Network Solutions,
4814 263 248 China Telecom (Group)
27364 258 240 Armstrong Cable Services
2386 482 239 AT&T Data Communications Serv
7066 490 236 Virginia Polytechnic Institut
1 666 231 GENUITY
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
64521 PRIVATE 198.189.23.0/24 2151 California State Uni
64521 PRIVATE 198.189.24.0/24 2151 California State Uni
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
64521 PRIVATE 198.189.158.0/24 2151 California State Uni
64521 PRIVATE 198.189.235.0/24 2151 California State Uni
64521 PRIVATE 198.189.236.0/24 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
192.153.136.0/21 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
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 /14:240 /15:447 /16:7342 /17:1603 /18:2902
/19:8197 /20:8118 /21:5807 /22:8833 /23:10566 /24:67144
/25:130 /26:151 /27:81 /28:77 /29:54 /30:72
/31:4 /32:59
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 821 1251 Supernet, Inc.
18566 506 511 Covad Communications
702 494 790 UUNET - Commercial IP service
7018 483 1379 AT&T
701 464 1596 UUNET Technologies, Inc.
690 449 500 Merit Network
7066 389 490 Virginia Polytechnic Institut
6197 366 498 BellSouth Network Solutions,
1239 365 978 Sprint
6198 358 448 BellSouth Network Solutions,
7843 352 590 Adelphia Corp.
11492 321 322 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
2386 282 482 AT&T Data Communications Serv
6140 271 284 ImpSat
20115 269 397 Charter Communications
27364 250 258 Armstrong Cable Services
3215 239 314 France Telecom Transpac
7303 239 240 Telecom Argentina Stet-France
209 220 532 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:657 13:1 15:4 17:2 20:9 24:897
25:1 32:90 34:1 38:60 40:18 44:2
55:1 57:13 61:449 62:502 63:1934 64:1407
65:1904 66:1461 67:215 68:296 69:54 80:331
81:94 128:149 129:223 130:40 131:82 132:11
133:11 134:147 135:4 136:114 137:117 138:107
139:74 140:138 141:123 142:94 143:47 144:89
145:18 146:258 147:86 148:272 149:73 150:43
151:110 152:253 153:51 154:2 155:105 156:43
157:42 158:123 159:139 160:35 161:60 162:136
163:86 164:300 165:142 166:79 167:320 168:389
169:55 170:312 171:8 192:5287 193:2384 194:2009
195:968 196:471 198:3594 199:3201 200:2884 202:3641
203:5081 204:3039 205:2013 206:2338 207:2391 208:2693
209:2798 210:737 211:330 212:964 213:769 214:21
215:21 216:3251 217:600 218:80 219:14 220:52
End of report
