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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 18 Apr, 2004
Analysis Summary
----------------
BGP routing table entries examined: 136515
Prefixes after maximum aggregation: 82958
Unique aggregates announced to Internet: 66187
Total ASes present in the Internet Routing Table: 17037
Origin-only ASes present in the Internet Routing Table: 14779
Origin ASes announcing only one prefix: 6823
Transit ASes present in the Internet Routing Table: 2258
Transit-only ASes present in the Internet Routing Table: 82
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 18
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: 17
Number of addresses announced to Internet: 1279339264
Equivalent to 76 /8s, 65 /16s and 43 /24s
Percentage of available address space announced: 34.5
Percentage of allocated address space announced: 57.5
Percentage of available address space allocated: 60.0
Total number of prefixes smaller than registry allocations: 61173
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 25992
Total APNIC prefixes after maximum aggregation: 13638
Prefixes being announced from the APNIC address blocks: 24312
Unique aggregates announced from the APNIC address blocks: 13597
APNIC Region origin ASes present in the Internet Routing Table: 2043
APNIC Region origin ASes announcing only one prefix: 607
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 142455680
Equivalent to 8 /8s, 125 /16s and 179 /24s
Percentage of available APNIC address space announced: 76.8
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: 78768
Total ARIN prefixes after maximum aggregation: 48597
Prefixes being announced from the ARIN address blocks: 60787
Unique aggregates announced from the ARIN address blocks: 21435
ARIN Region origin ASes present in the Internet Routing Table: 9097
ARIN Region origin ASes announcing only one prefix: 3227
ARIN Region transit ASes present in the Internet Routing Table: 885
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 221808416
Equivalent to 13 /8s, 56 /16s and 135 /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
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: 24830
Total RIPE prefixes after maximum aggregation: 17862
Prefixes being announced from the RIPE address blocks: 21650
Unique aggregates announced from the RIPE address blocks: 14376
RIPE Region origin ASes present in the Internet Routing Table: 5355
RIPE Region origin ASes announcing only one prefix: 2867
RIPE Region transit ASes present in the Internet Routing Table: 926
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 159471872
Equivalent to 9 /8s, 129 /16s and 89 /24s
Percentage of available RIPE address space announced: 55.9
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, 80/5, 88/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5781
Total LACNIC prefixes after maximum aggregation: 2186
Prefixes being announced from the LACNIC address blocks: 5434
Unique aggregates announced from the LACNIC address blocks: 3397
LACNIC Region origin ASes present in the Internet Routing Table: 368
LACNIC Region origin ASes announcing only one prefix: 99
LACNIC Region transit ASes present in the Internet Routing Table: 73
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14518016
Equivalent to 0 /8s, 221 /16s and 135 /24s
Percentage of available LACNIC address space announced: 43.3
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1143
Total AfriNIC prefixes after maximum aggregation: 675
Prefixes being announced from the AfriNIC address blocks: 747
Unique aggregates announced from the AfriNIC address blocks: 555
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 23
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: 16
Number of AfriNIC addresses announced to Internet: 1838592
Equivalent to 0 /8s, 28 /16s and 14 /24s
Percentage of available AfriNIC address space announced: 11.0
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 863 1091 629 Telstra Pty Ltd
4134 722 3179 119 Data Communications Bureau
4766 465 2916 251 Korea Internet Exchange for "
9583 435 39 100 Satyam Infoway Ltd.,
2907 356 1862 332 SINET Japan
4755 354 129 53 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
9929 347 155 31 China Netcom Corp.
703 333 373 256 UUNET
17557 322 23 164 Pakistan Telecom
17676 309 4572 41 XTAGE CORPORATION
2764 294 273 240 connect.com.au pty ltd
7474 272 300 216 Optus Communications Pty Ltd
9942 223 71 127 COMindico Australia
9800 217 348 58 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 203 31 44 BHARTI BT INTERNET LTD.
4837 173 1571 102 chinanet IDC center beijing n
9304 169 159 24 Hutchison Telecom (HK)
7633 160 23 43 Software Technology Parks of
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1415 6963 992 AT&T
701 1317 8554 945 UUNET Technologies, Inc.
1239 930 3033 636 Sprint
3356 892 10960 688 Level 3 Communications, LLC
209 758 3493 518 Qwest
4323 722 559 197 Time Warner Communications, I
18566 699 192 8 Covad Communications
6197 689 506 252 BellSouth Network Solutions,
20115 595 349 306 Charter Communications
6198 566 364 206 BellSouth Network Solutions,
7843 535 620 110 Adelphia Corp.
852 513 1127 404 Telus Advanced Communications
7066 502 208 274 Virginia Polytechnic Institut
7132 452 7847 334 Southwestern Bell Internet Se
2386 433 579 235 AT&T Data Communications Serv
27364 405 29 23 Armstrong Cable Services
4355 393 323 103 EarthLink, Inc.
22909 383 839 23 Comcast Cable Corporation
376 380 343 112 Reseau Interordinateurs Scien
6347 377 386 85 SAVVIS Communications Corpora
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 664 2039 555 UUNET - Commercial IP service
3320 293 2477 235 Deutsche Telekom AG
3301 266 984 257 TeliaNet Sweden
8220 263 412 252 COLT Internet - International
680 245 2027 240 DFN-IP service G-WiN
1257 233 510 195 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
5515 197 778 140 Sonera Solution Autonomous Sy
3246 196 451 194 Song Networks
786 175 1826 175 The JANET IP Service
8708 173 111 162 Romania Data Systems S.A.
3215 167 815 71 France Telecom Transpac
25186 162 187 105 France Telecom Transpac's Tra
5400 157 241 140 BT Ignite European Backbone
6746 136 28 114 Dynamic Network Technologies,
3303 135 618 135 Swisscom Ltd
3269 134 1101 65 TELECOM ITALIA
12302 121 17 28 MobiFon S.A.
719 113 288 102 LANLINK autonomous system
1273 111 166 88 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 379 122 69 ImpSat
8151 265 357 130 UniNet S.A. de C.V.
11172 207 75 43 Servicios Alestra S.A de C.V
16814 163 11 6 NSS, S.A.
6147 145 78 20 Telefonica Del Peru
7303 141 53 26 Telecom Argentina Stet-France
6503 134 204 90 AVANTEL, S.A.
6505 130 90 91 Global One Communicaoes Ltda
11992 90 9 29 Integrated Systems
11556 88 73 25 Cable-Wireless Panama
6535 79 5 19 Chilesat Servicios Empresari
15311 75 18 38 Telefonica Empresas
14535 70 6 5 Techtel S.A.
11311 69 7 16 Sinectis S.A.
14259 69 4 5 GTD Internet S.A.
4270 67 17 7 Red de Interconexion Universi
14420 65 4 24 ANDINATEL S.A.
5639 64 7 13 Telecommunications Services o
7080 64 4 1 Electronica y Comunicaciones
10292 63 6 25 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 254 632 219 The Internet Solution
5536 106 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 89 272 79 The Internetworking Company o
11845 36 9 11 Data Pro Business Online
9129 33 3 4 UUNET Kenya
24835 31 18 6 RAYA Telecom - Egypt
5713 26 125 24 Telkom SA Ltd
14988 25 16 1 Botswana Telecommunications C
16637 25 9 18 Johnnic e-Ventures
12455 24 4 2 Jambonet Autonomous system
8524 23 2 4 AUCEGYPT Autonomous System
6713 22 38 9 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
15706 16 2 3 Sudatel Internet Exchange Aut
12258 15 3 10 Vodacom Internet Company
15808 14 1 6 Communication Solutions Ltd i
8346 13 6 12 SONATEL-AS Autonomous System
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 699 691 Covad Communications
4134 722 603 Data Communications Bureau
4323 722 525 Time Warner Communications, I
6197 689 437 BellSouth Network Solutions,
7843 535 425 Adelphia Corp.
27364 405 382 Armstrong Cable Services
701 1317 372 UUNET Technologies, Inc.
6198 566 360 BellSouth Network Solutions,
22909 383 360 Comcast Cable Corporation
5668 365 349 Century Telephone
9583 435 335 Satyam Infoway Ltd.,
22773 358 323 Cox Communications, Inc. Atla
9929 347 316 China Netcom Corp.
6140 379 310 ImpSat
4755 354 301 Videsh Sanchar Nigam Ltd. Aut
1239 930 294 Sprint
6347 377 292 SAVVIS Communications Corpora
4355 393 290 EarthLink, Inc.
20115 595 289 Charter Communications
9443 353 275 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18416 UNALLOCATED 61.56.96.0/20 9919 New Century InfoComm
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
156.154.16.0/22 7786 Lockheed Martin IMS
158.0.0.0/13 568 DISO-UNRRA
164.234.0.0/18 721 DLA Systems Automation Center
164.234.0.0/16 721 DLA Systems Automation Center
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 /8:18 /9:3 /10:6 /11:15 /12:58
/13:112 /14:293 /15:511 /16:7669 /17:1984 /18:3544
/19:9287 /20:9685 /21:7022 /22:9918 /23:11402 /24:74374
/25:183 /26:211 /27:127 /28:29 /29:4 /30:48
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 682 699 Covad Communications
7018 531 1415 AT&T
6197 526 689 BellSouth Network Solutions,
3356 494 892 Level 3 Communications, LLC
6198 408 566 BellSouth Network Solutions,
702 403 664 UUNET - Commercial IP service
27364 398 405 Armstrong Cable Services
7066 396 502 Virginia Polytechnic Institut
701 365 1317 UUNET Technologies, Inc.
1239 346 930 Sprint
20115 346 595 Charter Communications
690 335 372 Merit Network
5668 319 365 Century Telephone
4766 287 465 Korea Internet Exchange for "
9583 277 435 Satyam Infoway Ltd.,
9929 276 347 China Netcom Corp.
14824 250 275 NewSouth Communications Corp.
25844 244 244 Skadden, Arps, Slate, Meagher
19029 242 369 New Edge Networks
3320 240 293 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:823 13:1 15:4 16:1 17:3
20:8 24:809 32:83 38:60 40:54 44:3
55:1 56:4 57:13 61:388 62:461 63:1819
64:1904 65:1938 66:2514 67:297 68:554 69:482
80:507 81:261 82:149 83:30 128:148 129:252
130:101 131:78 132:17 134:182 135:17 136:187
137:106 138:149 139:36 140:150 141:133 142:108
143:47 144:92 145:40 146:291 147:77 148:366
149:92 150:93 151:62 152:207 153:62 154:1
155:130 156:59 157:55 158:146 159:159 160:49
161:53 162:377 163:76 164:328 165:164 166:98
167:211 168:215 169:101 170:289 171:8 192:5510
193:2630 194:2008 195:1337 196:529 198:3642 199:2982
200:3260 201:8 202:4557 203:5483 204:2981 205:1972
206:2250 207:2551 208:2317 209:2840 210:1356 211:520
212:946 213:1123 214:26 215:26 216:3331 217:892
218:164 219:96 220:204 221:27 222:20
End of report
