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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 08 Feb, 2004
Analysis Summary
----------------
BGP routing table entries examined: 132779
Prefixes after maximum aggregation: 81524
Unique aggregates announced to Internet: 64248
Total ASes present in the Internet Routing Table: 16597
Origin-only ASes present in the Internet Routing Table: 14419
Origin ASes announcing only one prefix: 6655
Transit ASes present in the Internet Routing Table: 2178
Transit-only ASes present in the Internet Routing Table: 69
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 23
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: 1284085540
Equivalent to 76 /8s, 137 /16s and 151 /24s
Percentage of available address space announced: 34.6
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 58878
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24638
Total APNIC prefixes after maximum aggregation: 13206
Prefixes being announced from the APNIC address blocks: 23068
Unique aggregates announced from the APNIC address blocks: 13275
APNIC Region origin ASes present in the Internet Routing Table: 1991
APNIC Region origin ASes announcing only one prefix: 593
APNIC Region transit ASes present in the Internet Routing Table: 321
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 135574912
Equivalent to 8 /8s, 20 /16s and 181 /24s
Percentage of available APNIC address space announced: 73.0
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: 77649
Total ARIN prefixes after maximum aggregation: 48083
Prefixes being announced from the ARIN address blocks: 60093
Unique aggregates announced from the ARIN address blocks: 20876
ARIN Region origin ASes present in the Internet Routing Table: 8925
ARIN Region origin ASes announcing only one prefix: 3158
ARIN Region transit ASes present in the Internet Routing Table: 854
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 216059488
Equivalent to 12 /8s, 224 /16s and 206 /24s
Percentage of available ARIN address space announced: 71.5
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: 23868
Total RIPE prefixes after maximum aggregation: 17353
Prefixes being announced from the RIPE address blocks: 20700
Unique aggregates announced from the RIPE address blocks: 13745
RIPE Region origin ASes present in the Internet Routing Table: 5152
RIPE Region origin ASes announcing only one prefix: 2775
RIPE Region transit ASes present in the Internet Routing Table: 885
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 150905472
Equivalent to 8 /8s, 254 /16s and 162 /24s
Percentage of available RIPE address space announced: 69.2
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
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: 5459
Total LACNIC prefixes after maximum aggregation: 2202
Prefixes being announced from the LACNIC address blocks: 5094
Unique aggregates announced from the LACNIC address blocks: 3242
LACNIC Region origin ASes present in the Internet Routing Table: 369
LACNIC Region origin ASes announcing only one prefix: 103
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: 16
Number of LACNIC addresses announced to Internet: 14108416
Equivalent to 0 /8s, 215 /16s and 71 /24s
Percentage of available LACNIC address space announced: 42.0
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1162
Total AfriNIC prefixes after maximum aggregation: 680
Prefixes being announced from the AfriNIC address blocks: 733
Unique aggregates announced from the AfriNIC address blocks: 567
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: 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: 1766144
Equivalent to 0 /8s, 26 /16s and 243 /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 933 1119 660 Telstra Pty Ltd
4134 676 2491 118 Data Communications Bureau
4766 424 2905 249 Korea Internet Exchange for "
2907 360 1831 337 SINET Japan
4755 350 130 58 Videsh Sanchar Nigam Ltd. Aut
9443 345 69 80 Primus Telecommunications
9583 342 40 92 Satyam Infoway Ltd.,
703 337 372 260 UUNET
17557 321 23 157 Pakistan Telecom
17676 296 4364 37 XTAGE CORPORATION
2764 280 288 234 connect.com.au pty ltd
7474 276 305 216 Optus Communications Pty Ltd
9942 226 69 129 COMindico Australia
9929 219 154 30 China Netcom Corp.
9800 214 347 55 CHINA UNICOM
9498 182 30 34 BHARTI BT INTERNET LTD.
17964 153 118 60 Beijing Dian-Xin-Tong Network
17642 151 40 110 RequestDSL BGP AS# for Sydney
4739 148 60 135 Commerical Internet eXchange
4837 147 1425 97 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1400 7008 981 AT&T
701 1370 8662 967 UUNET Technologies, Inc.
1239 945 3096 659 Sprint
3356 814 10921 649 Level 3 Communications, LLC
6197 735 442 275 BellSouth Network Solutions,
209 722 3533 510 Qwest
18566 687 192 9 Covad Communications
4323 681 544 203 Time Warner Communications, I
20115 614 336 336 Charter Communications
6198 545 354 195 BellSouth Network Solutions,
7843 506 570 124 Adelphia Corp.
852 503 1123 399 Telus Advanced Communications
7066 501 207 271 Virginia Polytechnic Institut
7132 454 7449 313 Southwestern Bell Internet Se
2386 418 562 221 AT&T Data Communications Serv
690 398 58 268 Merit Network
4355 393 323 99 EarthLink, Inc.
19029 388 168 249 New Edge Networks
376 383 359 114 Reseau Interordinateurs Scien
27364 382 28 23 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 685 2073 571 UUNET - Commercial IP service
3301 335 1174 314 TeliaNet Sweden
3320 284 1971 231 Deutsche Telekom AG
8220 268 411 254 COLT Internet - International
680 241 2027 237 DFN-IP service G-WiN
719 233 288 105 LANLINK autonomous system
1257 227 505 191 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 188 429 186 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 167 201 108 France Telecom Transpac's Tra
3215 157 787 73 France Telecom Transpac
5400 145 221 132 BT Ignite European Backbone
3303 138 620 138 Swisscom Ltd
6746 127 19 112 Dynamic Network Technologies,
12302 124 18 31 MobiFon S.A.
3269 123 1005 65 TELECOM ITALIA
2856 117 1294 107 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 358 121 66 ImpSat
8151 246 368 125 UniNet S.A. de C.V.
11172 204 77 44 Servicios Alestra S.A de C.V
16814 154 10 5 NSS, S.A.
6503 137 204 92 AVANTEL, S.A.
7303 137 51 30 Telecom Argentina Stet-France
6505 129 90 89 Global One Communicaoes Ltda
6147 123 78 20 Telefonica Del Peru
11556 88 73 25 Cable-Wireless Panama
11992 79 25 28 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.
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
10292 61 6 28 TELECOMMUNICATIONS OF JAMAICA
14420 60 4 26 ANDINATEL S.A.
1916 59 247 39 Fundacao de Amparo a Pesquisa
7738 59 218 13 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 249 632 218 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 25 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
12258 15 3 10 Vodacom Internet Company
17148 14 1 8 First National Bank
15825 13 1 8 Network Computer Systems Auto
2609 12 10 3 Tunisia BackBone AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 687 678 Covad Communications
4134 676 558 Data Communications Bureau
4323 681 478 Time Warner Communications, I
6197 735 460 BellSouth Network Solutions,
701 1370 403 UUNET Technologies, Inc.
7843 506 382 Adelphia Corp.
27364 382 359 Armstrong Cable Services
6198 545 350 BellSouth Network Solutions,
5668 346 330 Century Telephone
22909 338 319 Comcast Cable Corporation
22773 342 309 Cox Communications, Inc. Atla
4355 393 294 EarthLink, Inc.
6140 358 292 ImpSat
4755 350 292 Videsh Sanchar Nigam Ltd. Aut
1239 945 286 Sprint
20115 614 278 Charter Communications
1221 933 273 Telstra Pty Ltd
376 383 269 Reseau Interordinateurs Scien
9443 345 265 Primus Telecommunications
17676 296 259 XTAGE CORPORATION
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
64512 PRIVATE 204.70.1.0/24 3561 Cable & Wireless USA
23861 UNALLOCATED 210.93.46.0/24 3786 DACOM Corporation
23861 UNALLOCATED 210.93.47.0/24 3786 DACOM Corporation
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 /12:58
/13:105 /14:283 /15:502 /16:7556 /17:1883 /18:3481
/19:8923 /20:9267 /21:6777 /22:9549 /23:11093 /24:72537
/25:178 /26:294 /27:162 /28:27 /29:5 /30:44
/31:0 /32:11
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 670 687 Covad Communications
6197 577 735 BellSouth Network Solutions,
7018 505 1400 AT&T
3356 436 814 Level 3 Communications, LLC
702 417 685 UUNET - Commercial IP service
7066 395 501 Virginia Polytechnic Institut
701 393 1370 UUNET Technologies, Inc.
6198 393 545 BellSouth Network Solutions,
20115 388 614 Charter Communications
27364 375 382 Armstrong Cable Services
690 361 398 Merit Network
1239 331 945 Sprint
5668 305 346 Century Telephone
19029 255 388 New Edge Networks
4766 247 424 Korea Internet Exchange for "
25844 244 244 Skadden, Arps, Slate, Meagher
3320 232 284 Deutsche Telekom AG
6517 228 252 Yipes Communications, Inc.
6386 222 248 bellsouth.net, inc.
13609 220 260 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:770 13:1 15:6 16:1 17:3
20:7 24:844 32:84 38:44 40:26 44:3
55:1 56:1 57:14 61:365 62:472 63:1816
64:1852 65:1854 66:2350 67:273 68:604 69:384
80:457 81:213 82:75 83:2 128:146 129:268
130:78 131:78 132:16 134:174 135:16 136:187
137:113 138:147 139:40 140:160 141:135 142:105
143:46 144:78 145:39 146:285 147:76 148:299
149:85 150:121 151:61 152:214 153:60 154:1
155:136 156:66 157:56 158:134 159:141 160:45
161:52 162:368 163:70 164:328 165:161 166:106
167:214 168:177 169:96 170:298 171:8 192:5526
193:2566 194:2010 195:1324 196:515 198:3632 199:2882
200:3004 201:7 202:4416 203:5424 204:3027 205:2000
206:2269 207:2590 208:2411 209:2866 210:1060 211:438
212:907 213:1008 214:23 215:25 216:3377 217:824
218:118 219:93 220:167 221:18 222:1
End of report
