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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 21 Dec, 2003
Analysis Summary
----------------
BGP routing table entries examined: 131060
Prefixes after maximum aggregation: 80660
Unique aggregates announced to Internet: 63007
Total ASes present in the Internet Routing Table: 16343
Origin-only ASes present in the Internet Routing Table: 14205
Origin ASes announcing only one prefix: 6498
Transit ASes present in the Internet Routing Table: 2138
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: 21
Illegal AS announcements present in the Routing Table: 19
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1272780900
Equivalent to 75 /8s, 221 /16s and 24 /24s
Percentage of available address space announced: 34.3
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57765
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23956
Total APNIC prefixes after maximum aggregation: 12878
Prefixes being announced from the APNIC address blocks: 22418
Unique aggregates announced from the APNIC address blocks: 12731
APNIC Region origin ASes present in the Internet Routing Table: 1958
APNIC Region origin ASes announcing only one prefix: 577
APNIC Region transit ASes present in the Internet Routing Table: 306
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 132659328
Equivalent to 7 /8s, 232 /16s and 56 /24s
Percentage of available APNIC address space announced: 71.5
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: 77072
Total ARIN prefixes after maximum aggregation: 47838
Prefixes being announced from the ARIN address blocks: 59611
Unique aggregates announced from the ARIN address blocks: 20641
ARIN Region origin ASes present in the Internet Routing Table: 8821
ARIN Region origin ASes announcing only one prefix: 3091
ARIN Region transit ASes present in the Internet Routing Table: 834
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 212408224
Equivalent to 12 /8s, 169 /16s and 23 /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: 23285
Total RIPE prefixes after maximum aggregation: 17002
Prefixes being announced from the RIPE address blocks: 20160
Unique aggregates announced from the RIPE address blocks: 13368
RIPE Region origin ASes present in the Internet Routing Table: 5048
RIPE Region origin ASes announcing only one prefix: 2697
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: 21
Number of RIPE addresses announced to Internet: 147461760
Equivalent to 8 /8s, 202 /16s and 22 /24s
Percentage of available RIPE address space announced: 67.6
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: 5592
Total LACNIC prefixes after maximum aggregation: 2244
Prefixes being announced from the LACNIC address blocks: 5173
Unique aggregates announced from the LACNIC address blocks: 3207
LACNIC Region origin ASes present in the Internet Routing Table: 362
LACNIC Region origin ASes announcing only one prefix: 105
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13689088
Equivalent to 0 /8s, 208 /16s and 225 /24s
Percentage of available LACNIC address space announced: 40.8
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1135
Total AfriNIC prefixes after maximum aggregation: 698
Prefixes being announced from the AfriNIC address blocks: 726
Unique aggregates announced from the AfriNIC address blocks: 557
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: 1757696
Equivalent to 0 /8s, 26 /16s and 210 /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 921 1099 657 Telstra Pty Ltd
4134 739 2397 109 Data Communications Bureau
2907 363 1863 340 SINET Japan
9443 344 69 80 Primus Telecommunications
703 337 356 262 UUNET
4755 324 130 60 Videsh Sanchar Nigam Ltd. Aut
17557 309 22 152 Pakistan Telecom
17676 291 4284 37 XTAGE CORPORATION
2764 289 289 239 connect.com.au pty ltd
4766 270 2896 195 Korea Internet Exchange for "
9583 262 44 11 Satyam Infoway Ltd.,
7474 261 305 212 Optus Communications Pty Ltd
4538 249 1810 20 China Education and Research
3786 234 771 204 DACOM Corporation
9929 220 154 27 China Netcom Corp.
9942 211 69 123 COMindico Australia
9800 210 346 56 CHINA UNICOM
9498 174 22 31 BHARTI BT INTERNET LTD.
17642 152 40 111 RequestDSL BGP AS# for Sydney
4837 147 1269 98 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1416 8664 972 UUNET Technologies, Inc.
7018 1414 7056 980 AT&T
1239 951 3104 660 Sprint
6197 824 477 248 BellSouth Network Solutions,
209 734 3529 515 Qwest
18566 733 176 8 Covad Communications
3356 726 10925 576 Level 3 Communications, LLC
4323 677 589 204 Time Warner Communications, I
20115 582 320 332 Charter Communications
6198 567 338 194 BellSouth Network Solutions,
7843 507 520 120 Adelphia Corp.
7066 506 207 270 Virginia Polytechnic Institut
852 505 1124 402 Telus Advanced Communications
7132 450 7325 311 Southwestern Bell Internet Se
19029 415 174 269 New Edge Networks
2386 404 516 227 AT&T Data Communications Serv
690 400 58 270 Merit Network
4355 390 323 101 EarthLink, Inc.
705 381 196 236 UUNET Technologies, Inc.
27364 381 28 24 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 698 2075 581 UUNET - Commercial IP service
3301 298 1154 283 TeliaNet Sweden
3320 280 1972 230 Deutsche Telekom AG
8220 264 425 250 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.
3303 144 557 137 Swisscom Ltd
5400 141 176 126 BT Ignite European Backbone
3215 139 706 66 France Telecom Transpac
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 241 352 125 UniNet S.A. de C.V.
11172 195 77 44 Servicios Alestra S.A de C.V
7303 171 45 33 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 134 75 94 Global One Communicaoes Ltda
10620 131 11 36 TVCABLE BOGOTA
6503 126 204 92 AVANTEL, S.A.
6147 124 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
11992 75 25 31 Integrated Systems
6429 74 51 13 AT&T Chile Internet S.A.
4270 71 18 9 Red de Interconexion Universi
11311 67 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
2018 94 297 92 Tertiary Education Network
2905 90 272 80 The Internetworking Company o
5536 89 7 22 Internet Egypt Network
2561 59 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 19 Johnnic e-Ventures
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 739 630 Data Communications Bureau
6197 824 576 BellSouth Network Solutions,
4323 677 473 Time Warner Communications, I
7018 1414 434 AT&T
7843 507 387 Adelphia Corp.
6198 567 373 BellSouth Network Solutions,
27364 381 357 Armstrong Cable Services
22909 320 307 Comcast Cable Corporation
5668 320 304 Century Telephone
22773 325 295 Cox Communications, Inc. Atla
1239 951 291 Sprint
4355 390 289 EarthLink, Inc.
6140 350 282 ImpSat
1221 921 264 Telstra Pty Ltd
9443 344 264 Primus Telecommunications
4755 324 264 Videsh Sanchar Nigam Ltd. Aut
17676 291 254 XTAGE CORPORATION
6347 330 251 SAVVIS Communications Corpora
9583 262 251 Satyam Infoway Ltd.,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
31766 UNALLOCATED 67.99.177.0/24 4513 PFM Communications,
31758 UNALLOCATED 69.22.180.0/24 4474 Global Village Commu
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
64198 RESERVED 198.10.49.0/24 22767 NASA Earth Science D
65500 PRIVATE 202.95.128.0/19 4761 INDOSATNET-ASN
64512 PRIVATE 204.70.1.0/24 3561 Cable & Wireless USA
64512 PRIVATE 204.70.2.0/24 3561 Cable & Wireless USA
64512 PRIVATE 204.70.3.0/24 3561 Cable & Wireless USA
64512 PRIVATE 204.70.4.0/24 3561 Cable & Wireless USA
64512 PRIVATE 204.70.5.0/24 3561 Cable & Wireless USA
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
31776 UNALLOCATED 208.28.117.0/24 6395 Broadwing Communicat
31766 UNALLOCATED 209.10.138.0/24 4513 PFM Communications,
65500 PRIVATE 209.151.142.0/24 26788 Enersource Telecom I
31749 UNALLOCATED 216.248.43.0/24 2551 ICG NetAhead, Inc
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 /15:492 /16:7519 /17:1830 /18:3436
/19:8837 /20:9266 /21:6698 /22:9334 /23:11001 /24:71533
/25:180 /26:227 /27:142 /28:30 /29:8 /30:38
/31:0 /32:10
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 727 733 Covad Communications
6197 672 824 BellSouth Network Solutions,
7018 525 1414 AT&T
701 431 1416 UUNET Technologies, Inc.
702 426 698 UUNET - Commercial IP service
6198 425 567 BellSouth Network Solutions,
7066 399 506 Virginia Polytechnic Institut
27364 375 381 Armstrong Cable Services
3356 369 726 Level 3 Communications, LLC
20115 364 582 Charter Communications
690 361 400 Merit Network
1239 339 951 Sprint
5668 283 320 Century Telephone
19029 269 415 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 227 280 Deutsche Telekom AG
6386 222 248 bellsouth.net, inc.
4355 215 390 EarthLink, Inc.
6517 211 236 Yipes Communications, Inc.
209 209 734 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 5:1 12:757 13:1 14:1 15:6
16:1 17:3 20:7 22:2 24:875 32:83
38:44 40:26 44:2 55:1 56:1 57:14
61:327 62:454 63:1828 64:1795 65:1781 66:2190
67:244 68:685 69:369 80:437 81:178 82:60
128:146 129:258 130:67 131:80 132:17 134:177
135:16 136:183 137:114 138:125 139:39 140:164
141:134 142:111 143:48 144:61 145:39 146:290
147:73 148:319 149:88 150:119 151:60 152:208
153:57 154:1 155:131 156:60 157:62 158:133
159:135 160:46 161:49 162:368 163:68 164:332
165:175 166:104 167:210 168:180 169:96 170:299
171:8 192:5499 193:2474 194:2005 195:1301 196:515
198:3636 199:2831 200:3101 201:5 202:4115 203:5396
204:2966 205:2039 206:2255 207:2585 208:2476 209:2872
210:1003 211:398 212:944 213:958 214:23 215:25
216:3360 217:797 218:120 219:79 220:117 221:17
End of report
