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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 25 Dec, 2003
Analysis Summary
----------------
BGP routing table entries examined: 131421
Prefixes after maximum aggregation: 80756
Unique aggregates announced to Internet: 63113
Total ASes present in the Internet Routing Table: 16387
Origin-only ASes present in the Internet Routing Table: 14249
Origin ASes announcing only one prefix: 6526
Transit ASes present in the Internet Routing Table: 2138
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 19
Illegal AS announcements present in the Routing Table: 20
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1274011236
Equivalent to 75 /8s, 239 /16s and 222 /24s
Percentage of available address space announced: 34.4
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57894
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24119
Total APNIC prefixes after maximum aggregation: 12957
Prefixes being announced from the APNIC address blocks: 22563
Unique aggregates announced from the APNIC address blocks: 12799
APNIC Region origin ASes present in the Internet Routing Table: 1971
APNIC Region origin ASes announcing only one prefix: 583
APNIC Region transit ASes present in the Internet Routing Table: 305
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 132886912
Equivalent to 7 /8s, 235 /16s and 177 /24s
Percentage of available APNIC address space announced: 71.6
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: 77240
Total ARIN prefixes after maximum aggregation: 47843
Prefixes being announced from the ARIN address blocks: 59733
Unique aggregates announced from the ARIN address blocks: 20684
ARIN Region origin ASes present in the Internet Routing Table: 8831
ARIN Region origin ASes announcing only one prefix: 3092
ARIN Region transit ASes present in the Internet Routing Table: 839
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 212490912
Equivalent to 12 /8s, 170 /16s and 90 /24s
Percentage of available ARIN address space announced: 74.5
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 23306
Total RIPE prefixes after maximum aggregation: 17043
Prefixes being announced from the RIPE address blocks: 20184
Unique aggregates announced from the RIPE address blocks: 13433
RIPE Region origin ASes present in the Internet Routing Table: 5065
RIPE Region origin ASes announcing only one prefix: 2717
RIPE Region transit ASes present in the Internet Routing Table: 880
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 147733888
Equivalent to 8 /8s, 206 /16s and 61 /24s
Percentage of available RIPE address space announced: 67.7
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: 5592
Total LACNIC prefixes after maximum aggregation: 2221
Prefixes being announced from the LACNIC address blocks: 5195
Unique aggregates announced from the LACNIC address blocks: 3126
LACNIC Region origin ASes present in the Internet Routing Table: 365
LACNIC Region origin ASes announcing only one prefix: 106
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13792768
Equivalent to 0 /8s, 210 /16s and 118 /24s
Percentage of available LACNIC address space announced: 41.1
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1144
Total AfriNIC prefixes after maximum aggregation: 692
Prefixes being announced from the AfriNIC address blocks: 729
Unique aggregates announced from the AfriNIC address blocks: 560
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 28
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1762304
Equivalent to 0 /8s, 26 /16s and 228 /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 910 1098 655 Telstra Pty Ltd
4134 737 2397 109 Data Communications Bureau
2907 363 1863 340 SINET Japan
9443 343 69 79 Primus Telecommunications
703 338 372 262 UUNET
4755 321 130 60 Videsh Sanchar Nigam Ltd. Aut
17557 306 22 150 Pakistan Telecom
17676 291 4284 37 XTAGE CORPORATION
2764 289 289 239 connect.com.au pty ltd
4766 279 2897 201 Korea Internet Exchange for "
9583 271 44 11 Satyam Infoway Ltd.,
7474 262 305 212 Optus Communications Pty Ltd
4538 249 1810 20 China Education and Research
3786 230 770 202 DACOM Corporation
9929 220 154 27 China Netcom Corp.
9942 217 69 128 COMindico Australia
9800 212 346 57 CHINA UNICOM
9498 173 22 31 BHARTI BT INTERNET LTD.
17642 152 40 111 RequestDSL BGP AS# for Sydney
4837 146 1271 99 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1421 7072 985 AT&T
701 1415 8663 971 UUNET Technologies, Inc.
1239 944 3088 654 Sprint
6197 823 477 248 BellSouth Network Solutions,
18566 733 176 8 Covad Communications
209 730 3529 513 Qwest
3356 727 10926 577 Level 3 Communications, LLC
4323 677 589 204 Time Warner Communications, I
20115 582 320 332 Charter Communications
6198 570 339 195 BellSouth Network Solutions,
852 505 1124 402 Telus Advanced Communications
7843 505 521 116 Adelphia Corp.
7066 504 207 270 Virginia Polytechnic Institut
7132 449 7324 310 Southwestern Bell Internet Se
19029 412 173 268 New Edge Networks
2386 406 516 229 AT&T Data Communications Serv
690 400 58 270 Merit Network
4355 390 323 101 EarthLink, Inc.
27364 381 28 24 Armstrong Cable Services
705 379 196 234 UUNET Technologies, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 699 2075 582 UUNET - Commercial IP service
3301 297 1154 282 TeliaNet Sweden
3320 281 1972 231 Deutsche Telekom AG
8220 265 425 251 COLT Internet - International
1257 258 505 192 SWIPnet Swedish IP Network
680 229 2022 226 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
3246 185 424 183 Song Networks
786 175 1826 175 The JANET IP Service
5515 173 762 135 Sonera Solution Autonomous Sy
25186 168 201 109 France Telecom Transpac's Tra
8708 165 111 158 Romania Data Systems S.A.
3215 144 754 67 France Telecom Transpac
3303 144 557 137 Swisscom Ltd
5400 141 176 126 BT Ignite European Backbone
719 134 288 104 LANLINK autonomous system
12302 126 18 33 MobiFon S.A.
3269 119 941 64 TELECOM ITALIA
2856 118 1294 108 BTnet UK Regional network
3352 102 876 30 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 350 120 68 ImpSat
8151 240 336 124 UniNet S.A. de C.V.
11172 198 77 44 Servicios Alestra S.A de C.V
7303 173 50 16 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 135 91 95 Global One Communicaoes Ltda
10620 131 11 36 TVCABLE BOGOTA
6503 128 220 93 AVANTEL, S.A.
6147 123 78 20 Telefonica Del Peru
11340 108 3 29 Red Universitaria Nacional
8065 77 10 21 Empresas Publicas de Medellin
6535 76 5 19 Chilesat Servicios Empresari
15311 76 16 39 Telefonica Empresas
6429 75 51 13 AT&T Chile Internet S.A.
4270 71 18 9 Red de Interconexion Universi
11992 69 25 31 Integrated Systems
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
14420 61 4 23 ANDINATEL 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 102 6 17 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
12455 24 4 2 Jambonet Autonomous system
24835 23 18 6 RAYA Telecom - Egypt
6713 22 38 9 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
8524 17 1 3 AUCEGYPT Autonomous System
12258 15 3 10 Vodacom Internet Company
15706 15 2 5 Sudatel Internet Exchange Aut
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 733 725 Covad Communications
4134 737 628 Data Communications Bureau
6197 823 575 BellSouth Network Solutions,
4323 677 473 Time Warner Communications, I
701 1415 444 UUNET Technologies, Inc.
7843 505 389 Adelphia Corp.
6198 570 375 BellSouth Network Solutions,
27364 381 357 Armstrong Cable Services
22909 320 307 Comcast Cable Corporation
5668 320 304 Century Telephone
22773 327 297 Cox Communications, Inc. Atla
1239 944 290 Sprint
4355 390 289 EarthLink, Inc.
6140 350 282 ImpSat
9443 343 264 Primus Telecommunications
4755 321 261 Videsh Sanchar Nigam Ltd. Aut
9583 271 260 Satyam Infoway Ltd.,
1221 910 255 Telstra Pty Ltd
17676 291 254 XTAGE CORPORATION
6347 330 251 SAVVIS Communications Corpora
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
31769 UNALLOCATED 12.164.144.0/24 7018 AT&T
31769 UNALLOCATED 65.218.210.0/24 701 UUNET Technologies,
31769 UNALLOCATED 65.218.210.0/23 7018 AT&T
31769 UNALLOCATED 65.218.211.0/24 701 UUNET Technologies,
31766 UNALLOCATED 67.99.177.0/24 4513 PFM Communications,
31758 UNALLOCATED 69.22.180.0/24 4474 Global Village Commu
31780 UNALLOCATED 69.38.148.0/24 701 UUNET Technologies,
31752 UNALLOCATED 69.60.224.0/20 23184 Persona Communicatio
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
65500 PRIVATE 202.95.128.0/19 4761 INDOSATNET-ASN
31763 UNALLOCATED 205.235.32.0/19 3593 EPIX
31763 UNALLOCATED 205.235.48.0/24 3593 EPIX
31763 UNALLOCATED 205.235.49.0/24 3593 EPIX
31757 UNALLOCATED 207.105.158.0/24 7132 Southwestern Bell In
31776 UNALLOCATED 208.28.117.0/24 6395 Broadwing Communicat
31766 UNALLOCATED 209.10.138.0/24 4513 PFM Communications,
31749 UNALLOCATED 216.248.43.0/24 19094 Adelphia Business So
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
/13:102 /14:276 /15:494 /16:7528 /17:1836 /18:3446
/19:8860 /20:9298 /21:6721 /22:9379 /23:11036 /24:71682
/25:185 /26:232 /27:141 /28:34 /29:9 /30:49
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 727 733 Covad Communications
6197 671 823 BellSouth Network Solutions,
7018 526 1421 AT&T
701 431 1415 UUNET Technologies, Inc.
6198 428 570 BellSouth Network Solutions,
702 426 699 UUNET - Commercial IP service
7066 397 504 Virginia Polytechnic Institut
27364 375 381 Armstrong Cable Services
3356 370 727 Level 3 Communications, LLC
20115 364 582 Charter Communications
690 361 400 Merit Network
1239 340 944 Sprint
5668 283 320 Century Telephone
19029 266 412 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 228 281 Deutsche Telekom AG
6386 222 248 bellsouth.net, inc.
4355 215 390 EarthLink, Inc.
6517 213 238 Yipes Communications, Inc.
209 205 730 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 5:1 12:761 13:1 14:1 15:6
16:1 17:3 20:7 22:2 24:876 25:4
32:83 36:1 38:44 40:26 44:1 55:1
56:1 57:14 61:327 62:456 63:1815 64:1797
65:1793 66:2200 67:247 68:688 69:375 80:433
81:183 82:58 128:147 129:260 130:69 131:80
132:17 134:177 135:16 136:129 137:115 138:125
139:38 140:204 141:134 142:111 143:48 144:62
145:39 146:290 147:73 148:319 149:88 150:119
151:60 152:209 153:59 154:1 155:131 156:60
157:62 158:133 159:137 160:46 161:49 162:368
163:70 164:331 165:175 166:104 167:210 168:181
169:96 170:298 171:8 192:5512 193:2479 194:2002
195:1305 196:517 198:3632 199:2858 200:3100 201:5
202:4197 203:5385 204:2961 205:2038 206:2270 207:2583
208:2472 209:2894 210:997 211:404 212:913 213:968
214:23 215:25 216:3353 217:804 218:120 219:79
220:122 221:17
End of report
