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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 19 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130290
Prefixes after maximum aggregation: 80548
Unique aggregates announced to Internet: 62316
Total ASes present in the Internet Routing Table: 16211
Origin-only ASes present in the Internet Routing Table: 14068
Origin ASes announcing only one prefix: 6444
Transit ASes present in the Internet Routing Table: 2143
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 22
Illegal AS announcements present in the Routing Table: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1259812196
Equivalent to 75 /8s, 23 /16s and 53 /24s
Percentage of available address space announced: 34.0
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57575
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23631
Total APNIC prefixes after maximum aggregation: 12927
Prefixes being announced from the APNIC address blocks: 21999
Unique aggregates announced from the APNIC address blocks: 12549
APNIC Region origin ASes present in the Internet Routing Table: 1945
APNIC Region origin ASes announcing only one prefix: 576
APNIC Region transit ASes present in the Internet Routing Table: 314
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 128153088
Equivalent to 7 /8s, 163 /16s and 118 /24s
Percentage of available APNIC address space announced: 69.0
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76985
Total ARIN prefixes after maximum aggregation: 47905
Prefixes being announced from the ARIN address blocks: 59687
Unique aggregates announced from the ARIN address blocks: 20567
ARIN Region origin ASes present in the Internet Routing Table: 8754
ARIN Region origin ASes announcing only one prefix: 3050
ARIN Region transit ASes present in the Internet Routing Table: 832
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 209471904
Equivalent to 12 /8s, 124 /16s and 73 /24s
Percentage of available ARIN address space announced: 73.4
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, 29695 - 30719
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 22981
Total RIPE prefixes after maximum aggregation: 16795
Prefixes being announced from the RIPE address blocks: 19862
Unique aggregates announced from the RIPE address blocks: 13171
RIPE Region origin ASes present in the Internet Routing Table: 4980
RIPE Region origin ASes announcing only one prefix: 2681
RIPE Region transit ASes present in the Internet Routing Table: 878
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 141448960
Equivalent to 8 /8s, 110 /16s and 87 /24s
Percentage of available RIPE address space announced: 64.9
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
30720 - 31743
RIPE Address Blocks 62/8, 80/6, 84/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5583
Total LACNIC prefixes after maximum aggregation: 2220
Prefixes being announced from the LACNIC address blocks: 5102
Unique aggregates announced from the LACNIC address blocks: 3055
LACNIC Region origin ASes present in the Internet Routing Table: 363
LACNIC Region origin ASes announcing only one prefix: 106
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13490432
Equivalent to 0 /8s, 205 /16s and 217 /24s
Percentage of available LACNIC address space announced: 40.2
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1108
Total AfriNIC prefixes after maximum aggregation: 701
Prefixes being announced from the AfriNIC address blocks: 716
Unique aggregates announced from the AfriNIC address blocks: 549
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 31
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1751552
Equivalent to 0 /8s, 26 /16s and 186 /24s
Percentage of available AfriNIC address space announced: 10.4
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 955 1120 683 Telstra Pty Ltd
2907 373 1848 350 SINET Japan
4134 369 2418 110 Data Communications Bureau
4755 369 131 59 Videsh Sanchar Nigam Ltd. Aut
9443 338 72 83 Primus Telecommunications
17557 300 21 148 Pakistan Telecom
2764 289 288 244 connect.com.au pty ltd
17676 281 4156 32 XTAGE CORPORATION
703 270 352 214 UUNET
4766 264 2896 191 Korea Internet Exchange for "
7474 261 306 212 Optus Communications Pty Ltd
4538 248 1778 22 China Education and Research
9583 236 44 11 Satyam Infoway Ltd.,
3786 234 773 203 DACOM Corporation
9929 213 165 38 China Netcom Corp.
9800 207 343 57 CHINA UNICOM
9942 205 70 119 COMindico Australia
9498 171 22 29 BHARTI BT INTERNET LTD.
17642 154 40 113 RequestDSL BGP AS# for Sydney
4837 145 1253 98 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1432 8651 990 UUNET Technologies, Inc.
7018 1374 7033 950 AT&T
1239 917 3125 668 Sprint
209 886 3475 539 Qwest
18566 725 176 8 Covad Communications
6197 715 432 212 BellSouth Network Solutions,
4323 687 593 200 Time Warner Communications, I
3356 632 10803 519 Level 3 Communications, LLC
6198 613 373 224 BellSouth Network Solutions,
20115 586 316 330 Charter Communications
7843 520 498 122 Adelphia Corp.
852 516 1107 409 Telus Advanced Communications
7066 510 207 271 Virginia Polytechnic Institut
7132 483 7225 306 Southwestern Bell Internet Se
19029 412 174 276 New Edge Networks
690 400 58 270 Merit Network
2386 398 543 206 AT&T Data Communications Serv
4355 391 329 101 EarthLink, Inc.
705 384 196 239 UUNET Technologies, Inc.
376 358 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 694 2093 575 UUNET - Commercial IP service
3301 313 1170 290 TeliaNet Sweden
3320 274 1988 230 Deutsche Telekom AG
8220 257 420 246 COLT Internet - International
1257 237 455 188 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
5400 187 174 136 BT Ignite European Backbone
786 175 1826 175 The JANET IP Service
5515 175 778 137 Sonera Solution Autonomous Sy
8708 161 111 155 Romania Data Systems S.A.
3215 160 672 82 France Telecom Transpac
25186 158 185 103 France Telecom Transpac's Tra
3303 144 557 139 Swisscom Ltd
719 134 288 104 LANLINK autonomous system
3246 131 413 129 Song Networks
12302 126 18 33 MobiFon S.A.
3269 118 911 65 TELECOM ITALIA
2856 117 1294 108 BTnet UK Regional network
6746 103 16 77 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 344 120 67 ImpSat
8151 231 351 125 UniNet S.A. de C.V.
11172 192 77 42 Servicios Alestra S.A de C.V
7303 181 42 36 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 127 205 91 AVANTEL, S.A.
10620 122 8 26 TVCABLE BOGOTA
6147 121 70 19 Telefonica Del Peru
11340 106 3 29 Red Universitaria Nacional
11992 86 25 31 Integrated Systems
8065 79 10 17 Empresas Publicas de Medellin
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
4270 71 18 9 Red de Interconexion Universi
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
14420 60 4 25 ANDINATEL S.A.
27699 60 152 15 TELECOMUNICACOES DE SAO PAULO
1916 59 262 39 Fundacao de Amparo a Pesquisa
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 248 632 218 The Internet Solution
2018 94 297 92 Tertiary Education Network
5536 87 7 22 Internet Egypt Network
2905 59 245 52 The Internetworking Company o
2561 55 6 3 Egyptian Universities Network
11845 35 9 10 Data Pro Business Online
11569 31 29 28 satellite data networks
16284 30 3 5 GST-N Autonomous System
9129 26 3 4 UUNET Kenya
16637 26 9 19 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
12455 24 4 2 Jambonet Autonomous system
6713 22 38 9 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
3208 17 2 1 ARN Network
8524 17 1 3 AUCEGYPT Autonomous System
12258 15 3 10 Vodacom Internet Company
15706 15 2 5 Sudatel Internet Exchange Aut
17148 14 1 8 First National Bank
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 725 717 Covad Communications
6197 715 503 BellSouth Network Solutions,
4323 687 487 Time Warner Communications, I
7018 1374 424 AT&T
7843 520 398 Adelphia Corp.
6198 613 389 BellSouth Network Solutions,
209 886 347 Qwest
27364 337 314 Armstrong Cable Services
4755 369 310 Videsh Sanchar Nigam Ltd. Aut
22909 312 302 Comcast Cable Corporation
5668 312 293 Century Telephone
4355 391 290 EarthLink, Inc.
22773 306 281 Cox Communications, Inc. Atla
6140 344 277 ImpSat
1221 955 272 Telstra Pty Ltd
4134 369 259 Data Communications Bureau
6347 337 258 SAVVIS Communications Corpora
20115 586 256 Charter Communications
9443 338 255 Primus Telecommunications
1239 917 249 Sprint
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65001 PRIVATE 193.252.155.0/24 25113 France Telecom
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.43.230.0/24 4738 South Australian Academic Res
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
192.172.0.0/19 568 DISO-UNRRA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:4 /10:6 /11:13 /12:57
/13:97 /14:275 /15:478 /16:7465 /17:1831 /18:3266
/19:8663 /20:9188 /21:6668 /22:9419 /23:10921 /24:71134
/25:190 /26:244 /27:165 /28:71 /29:24 /30:51
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 719 725 Covad Communications
6197 571 715 BellSouth Network Solutions,
7018 497 1374 AT&T
6198 474 613 BellSouth Network Solutions,
701 442 1432 UUNET Technologies, Inc.
702 416 694 UUNET - Commercial IP service
7066 402 510 Virginia Polytechnic Institut
20115 366 586 Charter Communications
690 361 400 Merit Network
27364 331 337 Armstrong Cable Services
1239 320 917 Sprint
3356 317 632 Level 3 Communications, LLC
209 309 886 Qwest
5668 278 312 Century Telephone
19029 262 412 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 217 274 Deutsche Telekom AG
4355 217 391 EarthLink, Inc.
6517 214 239 Yipes Communications, Inc.
14824 201 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:754 13:1 15:6 16:1 17:3
20:7 24:853 32:88 38:42 40:23 43:1
44:2 55:1 56:1 57:13 61:343 62:457
63:1848 64:1804 65:1794 66:2193 67:280 68:554
69:333 80:439 81:169 82:71 128:158 129:160
130:68 131:82 132:18 134:174 135:10 136:184
137:119 138:135 139:52 140:192 141:138 142:110
143:48 144:59 145:37 146:286 147:71 148:310
149:81 150:120 151:60 152:209 153:59 154:1
155:128 156:60 157:61 158:139 159:136 160:46
161:68 162:364 163:73 164:324 165:167 166:107
167:212 168:179 169:96 170:312 171:9 192:5466
193:2432 194:2007 195:1296 196:508 198:3612 199:2846
200:3040 201:3 202:4171 203:5320 204:2947 205:2024
206:2292 207:2620 208:2499 209:2798 210:949 211:397
212:893 213:977 214:17 215:24 216:3365 217:793
218:118 219:84 220:113 221:17 222:1
End of report
