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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 18 Mar, 2003
Analysis Summary
----------------
BGP routing table entries examined: 122848
Prefixes after maximum aggregation: 77880
Unique aggregates announced to Internet: 59116
Total ASes present in the Internet Routing Table: 14813
Origin-only ASes present in the Internet Routing Table: 12849
Origin ASes announcing only one prefix: 5808
Transit ASes present in the Internet Routing Table: 1964
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: 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: 1200524165
Equivalent to 71 /8s, 142 /16s and 139 /24s
Percentage of available address space announced: 32.4
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 57651
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20727
Total APNIC prefixes after maximum aggregation: 12127
Prefixes being announced from the APNIC address blocks: 19179
Unique aggregates announced from the APNIC address blocks: 11690
APNIC Region origin ASes present in the Internet Routing Table: 1750
APNIC Region origin ASes announcing only one prefix: 519
APNIC Region transit ASes present in the Internet Routing Table: 292
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 107335328
Equivalent to 6 /8s, 101 /16s and 206 /24s
Percentage of available APNIC address space announced: 56.9
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: 75536
Total ARIN prefixes after maximum aggregation: 47941
Prefixes being announced from the ARIN address blocks: 53781
Unique aggregates announced from the ARIN address blocks: 16832
ARIN Region origin ASes present in the Internet Routing Table: 8233
ARIN Region origin ASes announcing only one prefix: 2787
ARIN Region transit ASes present in the Internet Routing Table: 791
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187548352
Equivalent to 11 /8s, 45 /16s and 194 /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: 21275
Total RIPE prefixes after maximum aggregation: 15587
Prefixes being announced from the RIPE address blocks: 17772
Unique aggregates announced from the RIPE address blocks: 11864
RIPE Region origin ASes present in the Internet Routing Table: 4437
RIPE Region origin ASes announcing only one prefix: 2417
RIPE Region transit ASes present in the Internet Routing Table: 804
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 127908096
Equivalent to 7 /8s, 159 /16s and 185 /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: 5300
Total LACNIC prefixes after maximum aggregation: 2225
Prefixes being announced from the LACNIC address blocks: 4683
Unique aggregates announced from the LACNIC address blocks: 3039
LACNIC Region origin ASes present in the Internet Routing Table: 330
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: 12282368
Equivalent to 0 /8s, 187 /16s and 106 /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 1099 1106 803 Telstra Pty Ltd
703 404 370 313 UUNET
2907 386 1959 365 SINET Japan
17557 370 26 138 Pakistan Telecom
2764 323 340 290 connect.com.au pty ltd
4134 309 2662 98 Data Communications Bureau
7474 305 275 206 Optus Communications Pty Ltd
4814 264 79 15 China Telecom (Group)
3786 249 772 211 DACOM Corporation
4755 232 135 75 Videsh Sanchar Nigam Ltd. Aut
17676 232 3574 24 XTAGE CORPORATION
9583 215 33 14 Satyam Infoway Ltd.,
4766 206 2074 155 Korea Internet Exchange for "
9443 178 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 129 733 123 TTnet
4739 128 57 116 Commerical Internet eXchange
7539 126 148 120 TANet2, sponsored by NSC, TAI
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1573 8857 1129 UUNET Technologies, Inc.
7018 1368 7132 951 AT&T
3908 1251 1588 482 Supernet, Inc.
1239 980 3153 695 Sprint
1 662 8072 431 GENUITY
7843 625 415 189 Adelphia Corp.
3561 590 2352 343 Cable & Wireless USA
4323 555 490 172 Time Warner Communications, I
852 553 1107 435 Telus Advanced Communications
4151 537 691 60 USDA
209 533 2092 339 Qwest
18566 519 120 9 Covad Communications
6197 507 563 122 BellSouth Network Solutions,
690 503 73 313 Merit Network
2386 490 480 246 AT&T Data Communications Serv
7066 490 204 254 Virginia Polytechnic Institut
705 450 165 196 UUNET Technologies, Inc.
6198 448 197 196 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
702 784 2236 648 UUNET - Commercial IP service
3301 317 1175 307 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 145 517 144 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
3246 105 360 102 Song Networks
3352 105 670 31 Ibernet, Internet Access Netw
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 216 357 118 UniNet S.A. de C.V.
11172 165 66 33 Servicios Alestra S.A de C.V
6503 153 175 109 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 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 61 5 20 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1251 769 Supernet, Inc.
18566 519 510 Covad Communications
4151 537 477 USDA
7843 625 436 Adelphia Corp.
7018 1368 417 AT&T
6197 507 385 BellSouth Network Solutions,
4323 555 383 Time Warner Communications, I
1221 1099 296 Telstra Pty Ltd
6347 371 291 SAVVIS Communications Corpora
1239 980 285 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
4355 391 279 EarthLink, Inc.
11492 281 279 Cable One
705 450 254 UUNET Technologies, Inc.
6198 448 252 BellSouth Network Solutions,
4814 264 249 China Telecom (Group)
3561 590 247 Cable & Wireless USA
2386 490 244 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
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 /8:17 /9:3 /10:8 /11:13 /12:46
/13:89 /14:238 /15:449 /16:7342 /17:1612 /18:2909
/19:8239 /20:8182 /21:5844 /22:8890 /23:10648 /24:67557
/25:169 /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 819 1251 Supernet, Inc.
18566 514 519 Covad Communications
702 487 784 UUNET - Commercial IP service
7018 474 1368 AT&T
690 452 503 Merit Network
701 452 1573 UUNET Technologies, Inc.
7066 389 490 Virginia Polytechnic Institut
7843 382 625 Adelphia Corp.
1239 369 980 Sprint
6197 369 507 BellSouth Network Solutions,
6198 357 448 BellSouth Network Solutions,
22927 294 295 TELEFONICA DE ARGENTINA
2386 290 490 AT&T Data Communications Serv
6140 279 292 ImpSat
11492 279 281 Cable One
20115 271 395 Charter Communications
27364 250 258 Armstrong Cable Services
7303 241 242 Telecom Argentina Stet-France
3215 232 307 France Telecom Transpac
209 222 533 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:660 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 61:451 62:503 63:1924 64:1443
65:1919 66:1555 67:222 68:306 69:62 80:337
81:96 128:150 129:224 130:42 131:83 132:11
133:11 134:147 135:4 136:113 137:116 138:104
139:65 140:145 141:124 142:95 143:46 144:97
145:18 146:264 147:88 148:274 149:73 150:43
151:113 152:251 153:51 154:2 155:108 156:43
157:44 158:123 159:139 160:33 161:60 162:125
163:86 164:302 165:142 166:74 167:320 168:394
169:55 170:311 171:6 192:5296 193:2389 194:2002
195:979 196:476 198:3595 199:3223 200:2897 202:3670
203:5087 204:3066 205:2021 206:2403 207:2424 208:2675
209:2802 210:736 211:332 212:985 213:767 214:21
215:21 216:3241 217:602 218:83 219:9 220:52
End of report
