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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 23 Jan, 2004
Analysis Summary
----------------
BGP routing table entries examined: 131810
Prefixes after maximum aggregation: 81068
Unique aggregates announced to Internet: 63592
Total ASes present in the Internet Routing Table: 16509
Origin-only ASes present in the Internet Routing Table: 14325
Origin ASes announcing only one prefix: 6604
Transit ASes present in the Internet Routing Table: 2184
Transit-only ASes present in the Internet Routing Table: 69
Average AS path length visible in the Internet Routing Table: 5.1
Max AS path length visible: 19
Illegal AS announcements present in the Routing Table: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1280778596
Equivalent to 76 /8s, 87 /16s and 33 /24s
Percentage of available address space announced: 34.6
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 58260
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24471
Total APNIC prefixes after maximum aggregation: 13100
Prefixes being announced from the APNIC address blocks: 22901
Unique aggregates announced from the APNIC address blocks: 12968
APNIC Region origin ASes present in the Internet Routing Table: 1980
APNIC Region origin ASes announcing only one prefix: 590
APNIC Region transit ASes present in the Internet Routing Table: 318
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 134740608
Equivalent to 8 /8s, 7 /16s and 250 /24s
Percentage of available APNIC address space announced: 72.6
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: 77176
Total ARIN prefixes after maximum aggregation: 47838
Prefixes being announced from the ARIN address blocks: 59693
Unique aggregates announced from the ARIN address blocks: 20779
ARIN Region origin ASes present in the Internet Routing Table: 8875
ARIN Region origin ASes announcing only one prefix: 3127
ARIN Region transit ASes present in the Internet Routing Table: 845
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 215231648
Equivalent to 12 /8s, 212 /16s and 44 /24s
Percentage of available ARIN address space announced: 71.3
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: 23695
Total RIPE prefixes after maximum aggregation: 17266
Prefixes being announced from the RIPE address blocks: 20524
Unique aggregates announced from the RIPE address blocks: 13648
RIPE Region origin ASes present in the Internet Routing Table: 5132
RIPE Region origin ASes announcing only one prefix: 2756
RIPE Region transit ASes present in the Internet Routing Table: 902
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 149590400
Equivalent to 8 /8s, 234 /16s and 145 /24s
Percentage of available RIPE address space announced: 68.6
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: 5320
Total LACNIC prefixes after maximum aggregation: 2191
Prefixes being announced from the LACNIC address blocks: 4945
Unique aggregates announced from the LACNIC address blocks: 3117
LACNIC Region origin ASes present in the Internet Routing Table: 364
LACNIC Region origin ASes announcing only one prefix: 105
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 13
Number of LACNIC addresses announced to Internet: 13946624
Equivalent to 0 /8s, 212 /16s and 207 /24s
Percentage of available LACNIC address space announced: 41.6
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1142
Total AfriNIC prefixes after maximum aggregation: 673
Prefixes being announced from the AfriNIC address blocks: 737
Unique aggregates announced from the AfriNIC address blocks: 569
AfriNIC Region origin ASes present in the Internet Routing Table: 91
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: 5.2
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1766656
Equivalent to 0 /8s, 26 /16s and 245 /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 905 1101 646 Telstra Pty Ltd
4134 666 2457 116 Data Communications Bureau
4766 408 2904 241 Korea Internet Exchange for "
2907 361 1847 338 SINET Japan
9443 344 69 79 Primus Telecommunications
703 337 372 261 UUNET
17557 319 23 154 Pakistan Telecom
9583 296 44 11 Satyam Infoway Ltd.,
17676 295 4348 38 XTAGE CORPORATION
2764 288 289 237 connect.com.au pty ltd
7474 271 305 213 Optus Communications Pty Ltd
4538 249 1811 21 China Education and Research
4755 218 130 58 Videsh Sanchar Nigam Ltd. Aut
9929 218 154 30 China Netcom Corp.
9942 216 69 128 COMindico Australia
9800 214 347 55 CHINA UNICOM
9498 188 30 35 BHARTI BT INTERNET LTD.
17642 153 40 112 RequestDSL BGP AS# for Sydney
17964 151 117 58 Beijing Dian-Xin-Tong Network
7633 149 23 40 Software Technology Parks of
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1403 8678 970 UUNET Technologies, Inc.
7018 1385 7014 960 AT&T
1239 946 3093 662 Sprint
3356 766 10926 611 Level 3 Communications, LLC
6197 727 401 235 BellSouth Network Solutions,
209 724 3533 505 Qwest
4323 688 592 207 Time Warner Communications, I
18566 685 192 9 Covad Communications
20115 602 330 336 Charter Communications
6198 589 381 226 BellSouth Network Solutions,
7843 510 555 122 Adelphia Corp.
852 505 1124 401 Telus Advanced Communications
7066 502 207 271 Virginia Polytechnic Institut
7132 451 7417 309 Southwestern Bell Internet Se
2386 418 544 219 AT&T Data Communications Serv
19029 401 169 257 New Edge Networks
690 398 58 268 Merit Network
4355 392 323 101 EarthLink, Inc.
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
702 691 2074 574 UUNET - Commercial IP service
3301 334 1174 315 TeliaNet Sweden
3320 279 1972 230 Deutsche Telekom AG
8220 271 411 257 COLT Internet - International
680 241 2027 237 DFN-IP service G-WiN
719 235 288 105 LANLINK autonomous system
1257 225 504 191 SWIPnet Swedish IP Network
13083 215 51 8 Mannesmann Datenverarbeitung
3246 188 425 186 Song Networks
786 175 1826 175 The JANET IP Service
5515 169 762 135 Sonera Solution Autonomous Sy
25186 168 201 109 France Telecom Transpac's Tra
8708 165 111 157 Romania Data Systems S.A.
3215 153 791 70 France Telecom Transpac
5400 139 223 128 BT Ignite European Backbone
3303 138 557 138 Swisscom Ltd
12302 130 18 34 MobiFon S.A.
3269 122 1004 64 TELECOM ITALIA
2856 119 1294 109 BTnet UK Regional network
6746 105 17 94 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 260 115 51 ImpSat
8151 244 350 126 UniNet S.A. de C.V.
11172 198 77 44 Servicios Alestra S.A de C.V
16814 155 10 5 NSS, S.A.
7303 141 52 26 Telecom Argentina Stet-France
6505 133 90 93 Global One Communicaoes Ltda
6503 128 220 93 AVANTEL, S.A.
6147 124 78 20 Telefonica Del Peru
11340 110 3 31 Red Universitaria Nacional
15311 78 18 38 Telefonica Empresas
6535 77 5 19 Chilesat Servicios Empresari
4270 71 18 9 Red de Interconexion Universi
11992 70 25 29 Integrated Systems
11311 68 7 22 Sinectis S.A.
7080 66 4 2 Electronica y Comunicaciones
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
14420 61 4 23 ANDINATEL S.A.
10292 60 5 27 TELECOMMUNICATIONS OF JAMAICA
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 103 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
16637 26 9 19 Johnnic e-Ventures
9129 25 3 4 UUNET Kenya
5713 24 93 22 Telkom SA Ltd
24835 23 18 6 RAYA Telecom - Egypt
12455 22 4 2 Jambonet Autonomous system
6713 21 38 8 Itissalat Al-MAGHRIB
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
2609 12 10 3 Tunisia BackBone AS
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 685 676 Covad Communications
4134 666 550 Data Communications Bureau
6197 727 492 BellSouth Network Solutions,
4323 688 481 Time Warner Communications, I
7018 1385 425 AT&T
7843 510 388 Adelphia Corp.
6198 589 363 BellSouth Network Solutions,
27364 382 359 Armstrong Cable Services
22909 331 313 Comcast Cable Corporation
5668 321 305 Century Telephone
22773 332 301 Cox Communications, Inc. Atla
4355 392 291 EarthLink, Inc.
9583 296 285 Satyam Infoway Ltd.,
1239 946 284 Sprint
376 383 269 Reseau Interordinateurs Scien
20115 602 266 Charter Communications
9443 344 265 Primus Telecommunications
1221 905 259 Telstra Pty Ltd
17676 295 257 XTAGE CORPORATION
6347 329 253 SAVVIS Communications Corpora
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65412 PRIVATE 64.70.42.0/24 3561 Cable & Wireless USA
64512 PRIVATE 131.95.1.240/28 16430 University of Southe
64198 RESERVED 192.107.195.0/24 22767 NASA Earth Science D
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64198 RESERVED 198.10.49.0/24 22767 NASA Earth Science D
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 /12:57
/13:105 /14:282 /15:501 /16:7541 /17:1852 /18:3439
/19:8878 /20:9322 /21:6697 /22:9447 /23:11013 /24:71876
/25:199 /26:297 /27:171 /28:28 /29:7 /30:43
/31:0 /32:11
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 668 685 Covad Communications
6197 577 727 BellSouth Network Solutions,
7018 505 1385 AT&T
6198 440 589 BellSouth Network Solutions,
701 422 1403 UUNET Technologies, Inc.
702 420 691 UUNET - Commercial IP service
3356 398 766 Level 3 Communications, LLC
7066 396 502 Virginia Polytechnic Institut
20115 382 602 Charter Communications
27364 375 382 Armstrong Cable Services
690 361 398 Merit Network
1239 333 946 Sprint
5668 284 321 Century Telephone
19029 262 401 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
4766 235 408 Korea Internet Exchange for "
3320 227 279 Deutsche Telekom AG
6386 220 246 bellsouth.net, inc.
6517 218 242 Yipes Communications, Inc.
4355 215 392 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:759 13:1 15:6 16:1 17:3
20:7 24:874 32:83 38:45 40:26 44:2
55:1 56:1 57:13 61:349 62:454 63:1823
64:1804 65:1818 66:2219 67:258 68:633 69:371
80:449 81:202 82:77 128:143 129:262 130:70
131:79 132:17 134:175 135:16 136:128 137:115
138:148 139:40 140:157 141:132 142:105 143:48
144:84 145:39 146:291 147:74 148:291 149:85
150:122 151:61 152:213 153:61 154:1 155:131
156:66 157:55 158:138 159:140 160:46 161:51
162:367 163:68 164:331 165:169 166:104 167:218
168:178 169:96 170:306 171:8 192:5513 193:2538
194:2009 195:1311 196:517 198:3643 199:2830 200:2901
201:7 202:4345 203:5389 204:3026 205:2024 206:2273
207:2586 208:2432 209:2863 210:1023 211:417 212:909
213:1003 214:23 215:25 216:3361 217:823 218:115
219:83 220:157 221:18 222:1
End of report
