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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 19 Mar, 2003
Analysis Summary
----------------
BGP routing table entries examined: 123065
Prefixes after maximum aggregation: 77967
Unique aggregates announced to Internet: 59137
Total ASes present in the Internet Routing Table: 14821
Origin-only ASes present in the Internet Routing Table: 12853
Origin ASes announcing only one prefix: 5811
Transit ASes present in the Internet Routing Table: 1968
Transit-only ASes present in the Internet Routing Table: 69
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: 0
Prefixes being announced from the IANA Reserved Address blocks: 19
Number of addresses announced to Internet: 1217969925
Equivalent to 72 /8s, 152 /16s and 191 /24s
Percentage of available address space announced: 32.9
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 57790
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20748
Total APNIC prefixes after maximum aggregation: 12179
Prefixes being announced from the APNIC address blocks: 19195
Unique aggregates announced from the APNIC address blocks: 11738
APNIC Region origin ASes present in the Internet Routing Table: 1751
APNIC Region origin ASes announcing only one prefix: 517
APNIC Region transit ASes present in the Internet Routing Table: 293
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 107445152
Equivalent to 6 /8s, 103 /16s and 123 /24s
Percentage of available APNIC address space announced: 57.0
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: 75713
Total ARIN prefixes after maximum aggregation: 47970
Prefixes being announced from the ARIN address blocks: 53916
Unique aggregates announced from the ARIN address blocks: 16808
ARIN Region origin ASes present in the Internet Routing Table: 8231
ARIN Region origin ASes announcing only one prefix: 2789
ARIN Region transit ASes present in the Internet Routing Table: 790
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187766848
Equivalent to 11 /8s, 49 /16s and 24 /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: 21281
Total RIPE prefixes after maximum aggregation: 15597
Prefixes being announced from the RIPE address blocks: 17806
Unique aggregates announced from the RIPE address blocks: 11858
RIPE Region origin ASes present in the Internet Routing Table: 4443
RIPE Region origin ASes announcing only one prefix: 2421
RIPE Region transit ASes present in the Internet Routing Table: 806
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 128146944
Equivalent to 7 /8s, 163 /16s and 94 /24s
Percentage of available RIPE address space announced: 76.4
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: 5313
Total LACNIC prefixes after maximum aggregation: 2221
Prefixes being announced from the LACNIC address blocks: 4697
Unique aggregates announced from the LACNIC address blocks: 3043
LACNIC Region origin ASes present in the Internet Routing Table: 329
LACNIC Region origin ASes announcing only one prefix: 84
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 12352256
Equivalent to 0 /8s, 188 /16s and 123 /24s
Percentage of available LACNIC address space announced: 73.6
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 1099 1106 803 Telstra Pty Ltd
703 403 370 312 UUNET
2907 388 1975 367 SINET Japan
17557 372 26 139 Pakistan Telecom
2764 323 340 290 connect.com.au pty ltd
4134 309 2662 98 Data Communications Bureau
7474 307 276 208 Optus Communications Pty Ltd
4814 264 79 15 China Telecom (Group)
3786 249 772 211 DACOM Corporation
17676 233 3590 24 XTAGE CORPORATION
4755 232 135 75 Videsh Sanchar Nigam Ltd. Aut
9583 215 33 14 Satyam Infoway Ltd.,
4766 206 2074 155 Korea Internet Exchange for "
9443 178 57 77 Primus Telecommunications
9800 167 205 42 CHINA UNICOM
4765 152 10 14 World Net & Services Co., Ltd
9238 138 8 17 TATA ISP
4739 129 57 117 Commerical Internet eXchange
4716 128 717 122 TTnet
7539 128 164 121 TANet2, sponsored by NSC, TAI
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1593 8827 1137 UUNET Technologies, Inc.
7018 1368 7133 951 AT&T
3908 1250 1588 482 Supernet, Inc.
1239 981 3154 696 Sprint
1 693 8072 430 GENUITY
7843 624 416 185 Adelphia Corp.
3561 590 2352 343 Cable & Wireless USA
4323 555 490 172 Time Warner Communications, I
852 553 1107 435 Telus Advanced Communications
18566 538 121 11 Covad Communications
209 534 2092 339 Qwest
4151 534 691 60 USDA
6197 508 563 122 BellSouth Network Solutions,
690 503 73 313 Merit Network
2386 493 480 245 AT&T Data Communications Serv
7066 490 204 254 Virginia Polytechnic Institut
705 450 165 196 UUNET Technologies, Inc.
6198 449 197 196 BellSouth Network Solutions,
3549 406 695 309 Global Crossing
20115 395 167 264 Charter Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 785 2236 649 UUNET - Commercial IP service
3301 316 1175 306 TeliaNet Sweden
3215 309 835 174 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 148 17 3 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
8220 132 195 123 COLT Internet - International
12302 123 18 30 MobiFon S.A.
2856 118 1298 108 BTnet UK Regional network
3269 110 750 60 TELECOM ITALIA
3352 106 686 32 Ibernet, Internet Access Netw
3246 105 360 102 Song Networks
3233 102 11 12 RNC - Romanian Natioanal R&D
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 292 98 106 ImpSat
7303 242 36 56 Telecom Argentina Stet-France
8151 215 341 117 UniNet S.A. de C.V.
11172 165 66 33 Servicios Alestra S.A de C.V
6503 155 191 109 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 68 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 61 5 20 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1250 768 Supernet, Inc.
18566 538 527 Covad Communications
4151 534 474 USDA
7843 624 439 Adelphia Corp.
7018 1368 417 AT&T
6197 508 386 BellSouth Network Solutions,
4323 555 383 Time Warner Communications, I
1221 1099 296 Telstra Pty Ltd
6347 371 291 SAVVIS Communications Corpora
1239 981 285 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
11492 280 278 Cable One
4355 385 273 EarthLink, Inc.
1 693 263 GENUITY
705 450 254 UUNET Technologies, Inc.
6198 449 253 BellSouth Network Solutions,
4814 264 249 China Telecom (Group)
2386 493 248 AT&T Data Communications Serv
3561 590 247 Cable & Wireless USA
27364 258 240 Armstrong Cable Services
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
192.136.135.0/24 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 /8:18 /9:3 /10:8 /11:13 /12:46
/13:89 /14:238 /15:449 /16:7349 /17:1619 /18:2912
/19:8242 /20:8194 /21:5861 /22:8878 /23:10659 /24:67623
/25:190 /26:198 /27:124 /28:116 /29:75 /30:91
/31:4 /32:66
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 818 1250 Supernet, Inc.
18566 533 538 Covad Communications
702 488 785 UUNET - Commercial IP service
701 474 1593 UUNET Technologies, Inc.
7018 474 1368 AT&T
690 452 503 Merit Network
7066 389 490 Virginia Polytechnic Institut
7843 380 624 Adelphia Corp.
1239 370 981 Sprint
6197 370 508 BellSouth Network Solutions,
6198 358 449 BellSouth Network Solutions,
22927 294 295 TELEFONICA DE ARGENTINA
2386 293 493 AT&T Data Communications Serv
6140 279 292 ImpSat
11492 278 280 Cable One
20115 271 395 Charter Communications
27364 250 258 Armstrong Cable Services
7303 241 242 Telecom Argentina Stet-France
3215 233 309 France Telecom Transpac
209 223 534 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:661 13:1 15:4 17:2 20:10 24:900
25:1 32:90 34:1 38:61 40:18 44:2
55:1 57:15 61:453 62:504 63:1930 64:1437
65:1921 66:1556 67:223 68:308 69:63 80:335
81:99 128:150 129:224 130:42 131:83 132:11
133:11 134:144 135:4 136:113 137:116 138:106
139:65 140:144 141:122 142:95 143:46 144:98
145:18 146:264 147:89 148:274 149:73 150:43
151:113 152:261 153:51 154:2 155:109 156:43
157:44 158:123 159:139 160:33 161:60 162:124
163:86 164:303 165:146 166:74 167:320 168:394
169:55 170:312 171:6 192:5291 193:2388 194:2006
195:979 196:475 198:3602 199:3219 200:2905 202:3666
203:5123 204:3057 205:2031 206:2407 207:2423 208:2680
209:2817 210:734 211:324 212:973 213:766 214:21
215:21 216:3239 217:605 218:80 219:9 220:53
End of report
