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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 13 Mar, 2003
Analysis Summary
----------------
BGP routing table entries examined: 122496
Prefixes after maximum aggregation: 77853
Unique aggregates announced to Internet: 59009
Total ASes present in the Internet Routing Table: 14778
Origin-only ASes present in the Internet Routing Table: 12829
Origin ASes announcing only one prefix: 5784
Transit ASes present in the Internet Routing Table: 1949
Transit-only ASes present in the Internet Routing Table: 66
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 11
Non-routable prefixes present in the Routing Table: 1
Prefixes being announced from the IANA Reserved Address blocks: 18
Number of addresses announced to Internet: 1198743685
Equivalent to 71 /8s, 115 /16s and 96 /24s
Percentage of available address space announced: 32.3
Percentage of allocated address space announced: 58.3
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 57400
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20590
Total APNIC prefixes after maximum aggregation: 12162
Prefixes being announced from the APNIC address blocks: 19050
Unique aggregates announced from the APNIC address blocks: 11693
APNIC Region origin ASes present in the Internet Routing Table: 1751
APNIC Region origin ASes announcing only one prefix: 522
APNIC Region transit ASes present in the Internet Routing Table: 289
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 107090848
Equivalent to 6 /8s, 98 /16s and 19 /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: 75392
Total ARIN prefixes after maximum aggregation: 47935
Prefixes being announced from the ARIN address blocks: 53626
Unique aggregates announced from the ARIN address blocks: 16796
ARIN Region origin ASes present in the Internet Routing Table: 8209
ARIN Region origin ASes announcing only one prefix: 2764
ARIN Region transit ASes present in the Internet Routing Table: 781
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187213248
Equivalent to 11 /8s, 40 /16s and 165 /24s
Percentage of available ARIN address space announced: 69.7
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: 21290
Total RIPE prefixes after maximum aggregation: 15584
Prefixes being announced from the RIPE address blocks: 17769
Unique aggregates announced from the RIPE address blocks: 11828
RIPE Region origin ASes present in the Internet Routing Table: 4426
RIPE Region origin ASes announcing only one prefix: 2413
RIPE Region transit ASes present in the Internet Routing Table: 803
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 127785984
Equivalent to 7 /8s, 157 /16s and 220 /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: 5214
Total LACNIC prefixes after maximum aggregation: 2172
Prefixes being announced from the LACNIC address blocks: 4608
Unique aggregates announced from the LACNIC address blocks: 2995
LACNIC Region origin ASes present in the Internet Routing Table: 328
LACNIC Region origin ASes announcing only one prefix: 85
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: 11369472
Equivalent to 0 /8s, 173 /16s and 124 /24s
Percentage of available LACNIC address space announced: 67.8
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 1101 1122 805 Telstra Pty Ltd
703 404 370 315 UUNET
2907 386 1943 365 SINET Japan
17557 367 26 141 Pakistan Telecom
2764 323 340 290 connect.com.au pty ltd
4134 309 2662 98 Data Communications Bureau
7474 303 275 206 Optus Communications Pty Ltd
4814 264 79 15 China Telecom (Group)
3786 247 772 209 DACOM Corporation
4755 234 133 74 Videsh Sanchar Nigam Ltd. Aut
17676 232 3574 24 XTAGE CORPORATION
9583 214 33 13 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
7539 131 165 124 TANet2, sponsored by NSC, TAI
4716 128 733 122 TTnet
4739 128 57 116 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1580 8872 1135 UUNET Technologies, Inc.
7018 1376 7150 957 AT&T
3908 1256 1590 488 Supernet, Inc.
1239 982 3154 696 Sprint
1 664 8088 433 GENUITY
7843 609 412 192 Adelphia Corp.
4323 555 474 172 Time Warner Communications, I
852 552 1107 434 Telus Advanced Communications
4151 535 691 58 USDA
209 533 2092 342 Qwest
18566 514 119 8 Covad Communications
690 503 73 313 Merit Network
3561 499 2304 345 Cable & Wireless USA
6197 499 556 115 BellSouth Network Solutions,
7066 490 204 254 Virginia Polytechnic Institut
2386 478 478 240 AT&T Data Communications Serv
705 449 165 195 UUNET Technologies, Inc.
6198 448 196 199 BellSouth Network Solutions,
3549 403 695 307 Global Crossing
20115 397 171 265 Charter Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 788 2232 651 UUNET - Commercial IP service
3215 314 818 172 France Telecom Transpac
3301 312 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
5400 219 78 102 BT Ignite European Backbone
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 148 17 3 This AS will be used to conne
3303 146 517 144 Swisscom Ltd
8220 127 182 118 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 104 175 80 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 290 98 105 ImpSat
7303 240 36 49 Telecom Argentina Stet-France
8151 215 341 117 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.
11340 110 3 38 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
6147 75 62 20 Telefonica Del Peru
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
7984 66 11 42 Global One Colombia
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
11830 61 5 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 1256 768 Supernet, Inc.
18566 514 506 Covad Communications
4151 535 477 USDA
7018 1376 419 AT&T
7843 609 417 Adelphia Corp.
6197 499 384 BellSouth Network Solutions,
4323 555 383 Time Warner Communications, I
11492 323 319 Cable One
1221 1101 296 Telstra Pty Ltd
6347 372 292 SAVVIS Communications Corpora
1239 982 286 Sprint
4355 394 282 EarthLink, Inc.
22927 295 281 TELEFONICA DE ARGENTINA
705 449 254 UUNET Technologies, Inc.
6198 448 249 BellSouth Network Solutions,
4814 264 249 China Telecom (Group)
27364 258 240 Armstrong Cable Services
2386 478 238 AT&T Data Communications Serv
7066 490 236 Virginia Polytechnic Institut
1 664 231 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
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.168.0.0/24 2504 NCA5
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
192.172.0.0/19 568 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
/13:88 /14:238 /15:446 /16:7330 /17:1608 /18:2892
/19:8226 /20:8118 /21:5822 /22:8853 /23:10636 /24:67443
/25:169 /26:191 /27:103 /28:76 /29:58 /30:60
/31:4 /32:48
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 825 1256 Supernet, Inc.
18566 509 514 Covad Communications
702 493 788 UUNET - Commercial IP service
7018 479 1376 AT&T
690 452 503 Merit Network
701 452 1580 UUNET Technologies, Inc.
7066 389 490 Virginia Polytechnic Institut
1239 370 982 Sprint
7843 369 609 Adelphia Corp.
6197 366 499 BellSouth Network Solutions,
6198 358 448 BellSouth Network Solutions,
11492 322 323 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
2386 278 478 AT&T Data Communications Serv
6140 277 290 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
209 221 533 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:659 13:1 15:4 17:2 20:9 24:912
25:1 32:90 34:1 38:60 40:18 44:2
55:1 57:15 61:452 62:504 63:1925 64:1416
65:1909 66:1515 67:218 68:296 69:54 80:333
81:100 128:148 129:224 130:41 131:83 132:11
133:11 134:142 135:4 136:114 137:117 138:107
139:73 140:145 141:124 142:94 143:47 144:91
145:18 146:263 147:86 148:272 149:73 150:43
151:110 152:253 153:51 154:2 155:108 156:43
157:44 158:123 159:139 160:35 161:60 162:136
163:86 164:305 165:142 166:79 167:319 168:394
169:55 170:308 171:9 192:5298 193:2395 194:2007
195:983 196:474 198:3598 199:3224 200:2890 202:3620
203:5082 204:3061 205:2026 206:2417 207:2414 208:2683
209:2810 210:741 211:339 212:968 213:769 214:21
215:22 216:3224 217:604 218:82 219:10 220:52
End of report
