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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 19 Feb, 2004
Analysis Summary
----------------
BGP routing table entries examined: 133611
Prefixes after maximum aggregation: 81721
Unique aggregates announced to Internet: 64197
Total ASes present in the Internet Routing Table: 16656
Origin-only ASes present in the Internet Routing Table: 14458
Origin ASes announcing only one prefix: 6650
Transit ASes present in the Internet Routing Table: 2198
Transit-only ASes present in the Internet Routing Table: 65
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 24
Illegal AS announcements present in the Routing Table: 5
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1287359524
Equivalent to 76 /8s, 187 /16s and 140 /24s
Percentage of available address space announced: 34.7
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 59304
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24868
Total APNIC prefixes after maximum aggregation: 13189
Prefixes being announced from the APNIC address blocks: 23271
Unique aggregates announced from the APNIC address blocks: 13169
APNIC Region origin ASes present in the Internet Routing Table: 1996
APNIC Region origin ASes announcing only one prefix: 595
APNIC Region transit ASes present in the Internet Routing Table: 320
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 136424576
Equivalent to 8 /8s, 33 /16s and 172 /24s
Percentage of available APNIC address space announced: 73.5
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: 78027
Total ARIN prefixes after maximum aggregation: 48212
Prefixes being announced from the ARIN address blocks: 60375
Unique aggregates announced from the ARIN address blocks: 20764
ARIN Region origin ASes present in the Internet Routing Table: 8957
ARIN Region origin ASes announcing only one prefix: 3160
ARIN Region transit ASes present in the Internet Routing Table: 873
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 217700704
Equivalent to 12 /8s, 249 /16s and 217 /24s
Percentage of available ARIN address space announced: 72.1
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: 24006
Total RIPE prefixes after maximum aggregation: 17423
Prefixes being announced from the RIPE address blocks: 20851
Unique aggregates announced from the RIPE address blocks: 13845
RIPE Region origin ASes present in the Internet Routing Table: 5177
RIPE Region origin ASes announcing only one prefix: 2768
RIPE Region transit ASes present in the Internet Routing Table: 887
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 151599744
Equivalent to 9 /8s, 9 /16s and 58 /24s
Percentage of available RIPE address space announced: 69.5
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: 5542
Total LACNIC prefixes after maximum aggregation: 2218
Prefixes being announced from the LACNIC address blocks: 5194
Unique aggregates announced from the LACNIC address blocks: 3263
LACNIC Region origin ASes present in the Internet Routing Table: 369
LACNIC Region origin ASes announcing only one prefix: 101
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 12
Number of LACNIC addresses announced to Internet: 14202112
Equivalent to 0 /8s, 216 /16s and 181 /24s
Percentage of available LACNIC address space announced: 42.3
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1166
Total AfriNIC prefixes after maximum aggregation: 679
Prefixes being announced from the AfriNIC address blocks: 733
Unique aggregates announced from the AfriNIC address blocks: 562
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 26
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1764864
Equivalent to 0 /8s, 26 /16s and 238 /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 938 1120 662 Telstra Pty Ltd
4134 676 2491 118 Data Communications Bureau
4766 419 2914 241 Korea Internet Exchange for "
4755 362 130 58 Videsh Sanchar Nigam Ltd. Aut
2907 360 1846 337 SINET Japan
9583 353 42 24 Satyam Infoway Ltd.,
9443 345 69 80 Primus Telecommunications
703 338 374 261 UUNET
17557 324 23 157 Pakistan Telecom
17676 296 4364 37 XTAGE CORPORATION
2764 293 274 243 connect.com.au pty ltd
7474 273 305 213 Optus Communications Pty Ltd
9942 229 69 132 COMindico Australia
9929 223 154 31 China Netcom Corp.
9800 215 347 55 CHINA UNICOM
9498 193 30 34 BHARTI BT INTERNET LTD.
9304 169 159 23 Hutchison Telecom (HK)
4837 157 1539 101 chinanet IDC center beijing n
4739 149 60 136 Commerical Internet eXchange
17964 148 119 58 Beijing Dian-Xin-Tong Network
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1411 7242 988 AT&T
701 1362 8613 961 UUNET Technologies, Inc.
1239 938 3095 654 Sprint
3356 810 10919 657 Level 3 Communications, LLC
6197 732 442 269 BellSouth Network Solutions,
209 714 3533 504 Qwest
18566 689 192 9 Covad Communications
4323 686 543 201 Time Warner Communications, I
20115 614 343 348 Charter Communications
6198 546 354 196 BellSouth Network Solutions,
7843 509 580 128 Adelphia Corp.
852 504 1124 400 Telus Advanced Communications
7066 499 207 271 Virginia Polytechnic Institut
7132 456 7577 315 Southwestern Bell Internet Se
2386 426 578 224 AT&T Data Communications Serv
690 398 58 268 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
702 681 2073 567 UUNET - Commercial IP service
3301 335 1174 314 TeliaNet Sweden
3320 286 1965 233 Deutsche Telekom AG
8220 268 411 255 COLT Internet - International
680 241 2027 237 DFN-IP service G-WiN
719 234 288 105 LANLINK autonomous system
1257 229 506 190 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 188 431 186 Song Networks
786 175 1826 175 The JANET IP Service
8708 171 111 162 Romania Data Systems S.A.
5515 169 762 135 Sonera Solution Autonomous Sy
25186 167 186 109 France Telecom Transpac's Tra
3215 162 788 74 France Telecom Transpac
5400 147 222 130 BT Ignite European Backbone
3303 138 620 138 Swisscom Ltd
3269 124 1036 64 TELECOM ITALIA
6746 124 19 111 Dynamic Network Technologies,
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 356 121 64 ImpSat
8151 261 384 126 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 137 51 32 Telecom Argentina Stet-France
6505 131 90 91 Global One Communicaoes Ltda
6147 123 78 20 Telefonica Del Peru
11556 88 73 25 Cable-Wireless Panama
11992 79 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
7080 66 4 2 Electronica y Comunicaciones
11311 66 7 22 Sinectis S.A.
14420 66 4 23 ANDINATEL S.A.
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
10292 61 6 28 TELECOMMUNICATIONS OF JAMAICA
1916 60 247 40 Fundacao de Amparo a Pesquisa
7738 58 218 13 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 250 632 219 The Internet Solution
5536 104 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 33 2 1 ARN Network
9129 28 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 18 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 689 680 Covad Communications
4134 676 558 Data Communications Bureau
4323 686 485 Time Warner Communications, I
6197 732 463 BellSouth Network Solutions,
701 1362 401 UUNET Technologies, Inc.
7843 509 381 Adelphia Corp.
27364 382 359 Armstrong Cable Services
6198 546 350 BellSouth Network Solutions,
9583 353 329 Satyam Infoway Ltd.,
5668 346 329 Century Telephone
22909 341 322 Comcast Cable Corporation
22773 343 310 Cox Communications, Inc. Atla
4755 362 304 Videsh Sanchar Nigam Ltd. Aut
4355 397 294 EarthLink, Inc.
6140 356 292 ImpSat
1239 938 284 Sprint
1221 938 276 Telstra Pty Ltd
376 381 267 Reseau Interordinateurs Scien
20115 614 266 Charter Communications
9443 345 265 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
23861 UNALLOCATED 210.93.46.0/24 3786 DACOM Corporation
23861 UNALLOCATED 210.93.47.0/24 3786 DACOM Corporation
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 /8:20 /9:4 /10:6 /11:15 /12:58
/13:106 /14:287 /15:502 /16:7575 /17:1897 /18:3478
/19:8970 /20:9334 /21:6795 /22:9611 /23:11177 /24:73077
/25:190 /26:285 /27:156 /28:28 /29:8 /30:18
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 672 689 Covad Communications
6197 573 732 BellSouth Network Solutions,
7018 503 1411 AT&T
3356 435 810 Level 3 Communications, LLC
702 414 681 UUNET - Commercial IP service
6198 394 546 BellSouth Network Solutions,
701 393 1362 UUNET Technologies, Inc.
7066 393 499 Virginia Polytechnic Institut
20115 384 614 Charter Communications
27364 375 382 Armstrong Cable Services
690 361 398 Merit Network
1239 330 938 Sprint
5668 305 346 Century Telephone
19029 256 388 New Edge Networks
4766 247 419 Korea Internet Exchange for "
25844 244 244 Skadden, Arps, Slate, Meagher
3320 233 286 Deutsche Telekom AG
6517 227 251 Yipes Communications, Inc.
6386 223 249 bellsouth.net, inc.
13609 220 260 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:778 13:1 15:6 16:1 17:3
20:8 24:848 32:84 38:48 40:26 44:2
55:1 56:1 57:13 61:375 62:468 63:1809
64:1859 65:1900 66:2381 67:275 68:610 69:404
80:474 81:226 82:79 83:6 128:139 129:262
130:86 131:78 132:16 134:172 135:16 136:186
137:109 138:150 139:42 140:158 141:135 142:105
143:48 144:81 145:39 146:284 147:75 148:330
149:84 150:123 151:62 152:215 153:59 154:1
155:133 156:66 157:56 158:148 159:141 160:47
161:52 162:380 163:72 164:326 165:159 166:106
167:211 168:181 169:98 170:296 171:8 192:5525
193:2581 194:2001 195:1325 196:515 198:3639 199:2950
200:3076 201:7 202:4443 203:5470 204:3023 205:1999
206:2253 207:2594 208:2407 209:2849 210:1097 211:448
212:897 213:1038 214:25 215:27 216:3383 217:849
218:141 219:98 220:172 221:18 222:3
End of report
