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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 26 Feb, 2004
Analysis Summary
----------------
BGP routing table entries examined: 133803
Prefixes after maximum aggregation: 81830
Unique aggregates announced to Internet: 64414
Total ASes present in the Internet Routing Table: 16713
Origin-only ASes present in the Internet Routing Table: 14494
Origin ASes announcing only one prefix: 6700
Transit ASes present in the Internet Routing Table: 2219
Transit-only ASes present in the Internet Routing Table: 64
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 31
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: 14
Number of addresses announced to Internet: 1289127972
Equivalent to 76 /8s, 214 /16s and 136 /24s
Percentage of available address space announced: 34.8
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 59350
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 25011
Total APNIC prefixes after maximum aggregation: 13224
Prefixes being announced from the APNIC address blocks: 23373
Unique aggregates announced from the APNIC address blocks: 13215
APNIC Region origin ASes present in the Internet Routing Table: 2004
APNIC Region origin ASes announcing only one prefix: 597
APNIC Region transit ASes present in the Internet Routing Table: 320
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 136822400
Equivalent to 8 /8s, 39 /16s and 190 /24s
Percentage of available APNIC address space announced: 73.7
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: 77948
Total ARIN prefixes after maximum aggregation: 48250
Prefixes being announced from the ARIN address blocks: 60325
Unique aggregates announced from the ARIN address blocks: 20895
ARIN Region origin ASes present in the Internet Routing Table: 8975
ARIN Region origin ASes announcing only one prefix: 3179
ARIN Region transit ASes present in the Internet Routing Table: 881
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 218434912
Equivalent to 13 /8s, 5 /16s and 13 /24s
Percentage of available ARIN address space announced: 72.3
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
31744 - 32767
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/8, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 24105
Total RIPE prefixes after maximum aggregation: 17469
Prefixes being announced from the RIPE address blocks: 20967
Unique aggregates announced from the RIPE address blocks: 13896
RIPE Region origin ASes present in the Internet Routing Table: 5212
RIPE Region origin ASes announcing only one prefix: 2800
RIPE Region transit ASes present in the Internet Routing Table: 896
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 152156544
Equivalent to 9 /8s, 17 /16s and 185 /24s
Percentage of available RIPE address space announced: 69.8
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: 5561
Total LACNIC prefixes after maximum aggregation: 2209
Prefixes being announced from the LACNIC address blocks: 5221
Unique aggregates announced from the LACNIC address blocks: 3245
LACNIC Region origin ASes present in the Internet Routing Table: 368
LACNIC Region origin ASes announcing only one prefix: 102
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14294016
Equivalent to 0 /8s, 218 /16s and 28 /24s
Percentage of available LACNIC address space announced: 42.6
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1176
Total AfriNIC prefixes after maximum aggregation: 678
Prefixes being announced from the AfriNIC address blocks: 748
Unique aggregates announced from the AfriNIC address blocks: 558
AfriNIC Region origin ASes present in the Internet Routing Table: 90
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1766400
Equivalent to 0 /8s, 26 /16s and 244 /24s
Percentage of available AfriNIC address space announced: 10.5
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 898 1086 644 Telstra Pty Ltd
4134 669 2491 118 Data Communications Bureau
4766 433 2914 239 Korea Internet Exchange for "
4755 361 130 58 Videsh Sanchar Nigam Ltd. Aut
2907 360 1846 337 SINET Japan
9583 349 42 24 Satyam Infoway Ltd.,
9443 347 70 81 Primus Telecommunications
703 339 374 262 UUNET
17557 335 24 159 Pakistan Telecom
2764 296 274 241 connect.com.au pty ltd
17676 296 4364 37 XTAGE CORPORATION
7474 268 304 208 Optus Communications Pty Ltd
9942 230 70 132 COMindico Australia
9929 226 155 30 China Netcom Corp.
9800 215 347 55 CHINA UNICOM
9498 192 30 36 BHARTI BT INTERNET LTD.
9304 164 159 23 Hutchison Telecom (HK)
4837 155 1539 101 chinanet IDC center beijing n
17964 152 120 60 Beijing Dian-Xin-Tong Network
4739 150 60 137 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1402 7242 982 AT&T
701 1345 8612 960 UUNET Technologies, Inc.
1239 938 3079 654 Sprint
3356 811 10951 663 Level 3 Communications, LLC
6197 732 443 270 BellSouth Network Solutions,
209 712 3531 501 Qwest
18566 690 192 9 Covad Communications
4323 686 543 201 Time Warner Communications, I
20115 613 343 337 Charter Communications
6198 546 354 196 BellSouth Network Solutions,
852 505 1124 400 Telus Advanced Communications
7066 499 207 271 Virginia Polytechnic Institut
7843 494 582 122 Adelphia Corp.
7132 462 7706 317 Southwestern Bell Internet Se
2386 431 579 230 AT&T Data Communications Serv
690 397 58 267 Merit Network
4355 397 323 103 EarthLink, Inc.
19029 388 168 248 New Edge Networks
27364 382 28 23 Armstrong Cable Services
376 381 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 675 2050 561 UUNET - Commercial IP service
3301 336 1178 315 TeliaNet Sweden
3320 287 1966 235 Deutsche Telekom AG
8220 265 411 252 COLT Internet - International
680 242 2027 238 DFN-IP service G-WiN
719 235 288 105 LANLINK autonomous system
1257 229 506 190 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 191 447 189 Song Networks
786 174 1810 174 The JANET IP Service
8708 171 111 162 Romania Data Systems S.A.
5515 169 762 135 Sonera Solution Autonomous Sy
25186 165 185 108 France Telecom Transpac's Tra
3215 163 800 77 France Telecom Transpac
5400 150 223 133 BT Ignite European Backbone
3303 137 620 137 Swisscom Ltd
6746 128 19 112 Dynamic Network Technologies,
3269 125 1037 65 TELECOM ITALIA
12302 122 18 29 MobiFon S.A.
2856 117 1294 107 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 359 121 64 ImpSat
8151 261 384 125 UniNet S.A. de C.V.
11172 206 77 43 Servicios Alestra S.A de C.V
16814 156 11 6 NSS, S.A.
6503 140 204 94 AVANTEL, S.A.
7303 139 51 31 Telecom Argentina Stet-France
6505 131 90 91 Global One Communicaoes Ltda
6147 115 78 20 Telefonica Del Peru
11556 88 73 25 Cable-Wireless Panama
11992 78 25 29 Integrated Systems
15311 78 18 38 Telefonica Empresas
6535 77 5 19 Chilesat Servicios Empresari
4270 71 18 9 Red de Interconexion Universi
11311 68 7 16 Sinectis S.A.
7080 66 4 2 Electronica y Comunicaciones
14420 63 4 25 ANDINATEL S.A.
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
5639 61 7 12 Telecommunications Services o
7738 61 234 14 Telecomunicacoes da Bahia S.A
10292 61 6 28 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 632 219 The Internet Solution
5536 105 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 272 80 The Internetworking Company o
2561 58 6 3 Egyptian Universities Network
11845 36 9 11 Data Pro Business Online
3208 32 2 1 ARN Network
9129 30 3 4 UUNET Kenya
16637 25 9 18 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
24835 23 18 6 RAYA Telecom - Egypt
6713 22 38 9 Itissalat Al-MAGHRIB
12455 22 4 2 Jambonet Autonomous system
8524 19 2 4 AUCEGYPT Autonomous System
10798 18 1 12 Standard Bank of South Africa
15706 16 2 3 Sudatel Internet Exchange Aut
15808 16 1 7 Communication Solutions Ltd i
12258 15 3 10 Vodacom Internet Company
17148 14 1 8 First National Bank
8346 13 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 690 681 Covad Communications
4134 669 551 Data Communications Bureau
4323 686 485 Time Warner Communications, I
6197 732 462 BellSouth Network Solutions,
701 1345 385 UUNET Technologies, Inc.
7843 494 372 Adelphia Corp.
27364 382 359 Armstrong Cable Services
6198 546 350 BellSouth Network Solutions,
5668 346 331 Century Telephone
9583 349 325 Satyam Infoway Ltd.,
22909 343 323 Comcast Cable Corporation
22773 347 311 Cox Communications, Inc. Atla
4755 361 303 Videsh Sanchar Nigam Ltd. Aut
6140 359 295 ImpSat
4355 397 294 EarthLink, Inc.
1239 938 284 Sprint
6347 365 284 SAVVIS Communications Corpora
20115 613 276 Charter Communications
376 381 267 Reseau Interordinateurs Scien
9443 347 266 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65412 PRIVATE 64.70.42.0/24 3561 Cable & Wireless USA
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone 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
192.84.205.0/24 719 LANLINK autonomous system
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 /11:15 /12:59
/13:106 /14:289 /15:505 /16:7586 /17:1904 /18:3483
/19:8982 /20:9361 /21:6813 /22:9663 /23:11192 /24:73111
/25:193 /26:286 /27:159 /28:28 /29:8 /30:16
/31:0 /32:15
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 673 690 Covad Communications
6197 573 732 BellSouth Network Solutions,
7018 498 1402 AT&T
3356 435 811 Level 3 Communications, LLC
702 410 675 UUNET - Commercial IP service
6198 394 546 BellSouth Network Solutions,
7066 393 499 Virginia Polytechnic Institut
20115 380 613 Charter Communications
701 376 1345 UUNET Technologies, Inc.
27364 375 382 Armstrong Cable Services
690 360 397 Merit Network
1239 333 938 Sprint
5668 305 346 Century Telephone
4766 258 433 Korea Internet Exchange for "
19029 256 388 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 235 287 Deutsche Telekom AG
6386 223 249 bellsouth.net, inc.
6517 223 245 Yipes Communications, Inc.
13609 220 260 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:778 13:1 15:4 16:1 17:3
20:6 24:829 32:84 38:51 40:26 44:2
55:1 56:1 57:13 61:376 62:475 63:1825
64:1852 65:1908 66:2356 67:276 68:611 69:417
80:472 81:221 82:88 83:7 128:139 129:255
130:40 131:78 132:16 134:182 135:16 136:184
137:108 138:151 139:41 140:153 141:135 142:106
143:48 144:80 145:37 146:285 147:75 148:361
149:84 150:123 151:62 152:215 153:60 154:1
155:128 156:66 157:56 158:149 159:140 160:51
161:52 162:376 163:75 164:327 165:162 166:96
167:212 168:186 169:106 170:296 171:8 192:5534
193:2586 194:2006 195:1333 196:528 198:3634 199:2953
200:3086 201:7 202:4470 203:5465 204:3001 205:1993
206:2263 207:2600 208:2378 209:2858 210:1118 211:465
212:902 213:1075 214:25 215:26 216:3322 217:843
218:138 219:98 220:173 221:18 222:5
End of report
