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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 18 Dec, 2003
Analysis Summary
----------------
BGP routing table entries examined: 131098
Prefixes after maximum aggregation: 80734
Unique aggregates announced to Internet: 63027
Total ASes present in the Internet Routing Table: 16351
Origin-only ASes present in the Internet Routing Table: 14212
Origin ASes announcing only one prefix: 6494
Transit ASes present in the Internet Routing Table: 2139
Transit-only ASes present in the Internet Routing Table: 66
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 19
Illegal AS announcements present in the Routing Table: 6
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1272658020
Equivalent to 75 /8s, 219 /16s and 56 /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: 57675
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24075
Total APNIC prefixes after maximum aggregation: 12996
Prefixes being announced from the APNIC address blocks: 22525
Unique aggregates announced from the APNIC address blocks: 12819
APNIC Region origin ASes present in the Internet Routing Table: 1966
APNIC Region origin ASes announcing only one prefix: 579
APNIC Region transit ASes present in the Internet Routing Table: 310
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 132720512
Equivalent to 7 /8s, 233 /16s and 39 /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: 77054
Total ARIN prefixes after maximum aggregation: 47830
Prefixes being announced from the ARIN address blocks: 59647
Unique aggregates announced from the ARIN address blocks: 20679
ARIN Region origin ASes present in the Internet Routing Table: 8820
ARIN Region origin ASes announcing only one prefix: 3087
ARIN Region transit ASes present in the Internet Routing Table: 831
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 212057760
Equivalent to 12 /8s, 163 /16s and 190 /24s
Percentage of available ARIN address space announced: 74.4
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
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: 23268
Total RIPE prefixes after maximum aggregation: 16977
Prefixes being announced from the RIPE address blocks: 20117
Unique aggregates announced from the RIPE address blocks: 13347
RIPE Region origin ASes present in the Internet Routing Table: 5043
RIPE Region origin ASes announcing only one prefix: 2693
RIPE Region transit ASes present in the Internet Routing Table: 886
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 147007360
Equivalent to 8 /8s, 195 /16s and 39 /24s
Percentage of available RIPE address space announced: 67.4
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: 5584
Total LACNIC prefixes after maximum aggregation: 2235
Prefixes being announced from the LACNIC address blocks: 5103
Unique aggregates announced from the LACNIC address blocks: 3151
LACNIC Region origin ASes present in the Internet Routing Table: 367
LACNIC Region origin ASes announcing only one prefix: 109
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13708544
Equivalent to 0 /8s, 209 /16s and 45 /24s
Percentage of available LACNIC address space announced: 40.9
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1110
Total AfriNIC prefixes after maximum aggregation: 696
Prefixes being announced from the AfriNIC address blocks: 725
Unique aggregates announced from the AfriNIC address blocks: 556
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: 5.1
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1757184
Equivalent to 0 /8s, 26 /16s and 208 /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 951 1118 672 Telstra Pty Ltd
4134 640 2397 109 Data Communications Bureau
2907 355 1829 335 SINET Japan
9443 344 69 80 Primus Telecommunications
703 338 356 262 UUNET
4755 324 130 60 Videsh Sanchar Nigam Ltd. Aut
17557 308 22 153 Pakistan Telecom
17676 289 4252 38 XTAGE CORPORATION
2764 275 288 235 connect.com.au pty ltd
4766 268 2897 193 Korea Internet Exchange for "
7474 260 306 211 Optus Communications Pty Ltd
9583 250 44 11 Satyam Infoway Ltd.,
4538 249 1810 20 China Education and Research
3786 233 771 203 DACOM Corporation
9929 220 154 27 China Netcom Corp.
9942 213 69 125 COMindico Australia
9800 212 347 59 CHINA UNICOM
9498 174 22 31 BHARTI BT INTERNET LTD.
17642 153 40 112 RequestDSL BGP AS# for Sydney
4837 148 1271 99 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1428 7075 992 AT&T
701 1416 8664 972 UUNET Technologies, Inc.
1239 946 3103 657 Sprint
209 900 3530 516 Qwest
6197 792 473 249 BellSouth Network Solutions,
18566 732 176 8 Covad Communications
3356 716 10892 567 Level 3 Communications, LLC
4323 677 593 205 Time Warner Communications, I
20115 581 320 332 Charter Communications
6198 564 336 193 BellSouth Network Solutions,
852 507 1124 403 Telus Advanced Communications
7843 507 517 121 Adelphia Corp.
7066 506 207 270 Virginia Polytechnic Institut
7132 452 7357 313 Southwestern Bell Internet Se
19029 416 174 269 New Edge Networks
2386 404 527 210 AT&T Data Communications Serv
690 400 58 270 Merit Network
4355 388 323 99 EarthLink, Inc.
705 382 196 237 UUNET Technologies, Inc.
376 357 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 681 2072 564 UUNET - Commercial IP service
3301 299 1154 283 TeliaNet Sweden
3320 283 1972 231 Deutsche Telekom AG
8220 263 423 249 COLT Internet - International
1257 253 497 192 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
25186 178 219 117 France Telecom Transpac's Tra
786 175 1826 175 The JANET IP Service
5515 173 762 135 Sonera Solution Autonomous Sy
8708 164 111 157 Romania Data Systems S.A.
5400 157 177 142 BT Ignite European Backbone
3303 144 557 137 Swisscom Ltd
3215 140 706 67 France Telecom Transpac
719 134 288 104 LANLINK autonomous system
12302 126 18 33 MobiFon S.A.
3269 119 941 64 TELECOM ITALIA
2856 116 1294 107 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 346 120 66 ImpSat
8151 241 352 125 UniNet S.A. de C.V.
11172 195 77 44 Servicios Alestra S.A de C.V
7303 177 46 29 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 135 91 95 Global One Communicaoes Ltda
6503 127 204 93 AVANTEL, S.A.
6147 124 78 20 Telefonica Del Peru
10620 123 8 27 TVCABLE BOGOTA
11340 108 3 29 Red Universitaria Nacional
6535 76 5 19 Chilesat Servicios Empresari
8065 76 10 21 Empresas Publicas de Medellin
15311 76 16 39 Telefonica Empresas
6429 74 51 13 AT&T Chile Internet S.A.
11992 74 24 31 Integrated Systems
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 93 272 82 The Internetworking Company o
5536 89 7 22 Internet Egypt Network
2561 59 6 3 Egyptian Universities Network
11845 35 9 10 Data Pro Business Online
9129 26 3 4 UUNET Kenya
16637 26 9 19 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
12455 23 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
6879 11 1 3 EUnet Egypt
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 732 724 Covad Communications
6197 792 543 BellSouth Network Solutions,
4134 640 531 Data Communications Bureau
4323 677 472 Time Warner Communications, I
701 1416 444 UUNET Technologies, Inc.
7843 507 386 Adelphia Corp.
209 900 384 Qwest
6198 564 371 BellSouth Network Solutions,
27364 354 330 Armstrong Cable Services
22909 320 307 Comcast Cable Corporation
22773 320 290 Cox Communications, Inc. Atla
1239 946 289 Sprint
4355 388 289 EarthLink, Inc.
6140 346 280 ImpSat
1221 951 279 Telstra Pty Ltd
9443 344 264 Primus Telecommunications
4755 324 264 Videsh Sanchar Nigam Ltd. Aut
5668 280 262 Century Telephone
6347 330 251 SAVVIS Communications Corpora
17676 289 251 XTAGE CORPORATION
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
31758 UNALLOCATED 69.22.180.0/24 4474 Global Village Commu
64512 PRIVATE 131.95.1.240/28 16430 University of Southe
65397 PRIVATE 165.193.105.0/24 3561 Cable & Wireless USA
65397 PRIVATE 165.193.121.0/24 3561 Cable & Wireless USA
64512 PRIVATE 204.70.1.0/24 3561 Cable & Wireless USA
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
/13:101 /14:276 /15:487 /16:7517 /17:1835 /18:3428
/19:8822 /20:9316 /21:6710 /22:9371 /23:11031 /24:71434
/25:182 /26:228 /27:157 /28:34 /29:9 /30:48
/31:0 /32:11
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 726 732 Covad Communications
6197 644 792 BellSouth Network Solutions,
7018 528 1428 AT&T
701 430 1416 UUNET Technologies, Inc.
6198 423 564 BellSouth Network Solutions,
702 410 681 UUNET - Commercial IP service
7066 399 506 Virginia Polytechnic Institut
3356 363 716 Level 3 Communications, LLC
20115 363 581 Charter Communications
690 361 400 Merit Network
27364 348 354 Armstrong Cable Services
1239 336 946 Sprint
209 298 900 Qwest
19029 270 416 New Edge Networks
5668 246 280 Century Telephone
25844 244 244 Skadden, Arps, Slate, Meagher
3320 226 283 Deutsche Telekom AG
4355 215 388 EarthLink, Inc.
6517 210 235 Yipes Communications, Inc.
6386 202 227 bellsouth.net, inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 5:1 12:758 13:1 14:1 15:6
16:1 17:3 20:7 24:865 32:82 38:43
40:25 44:2 55:1 56:1 57:14 61:322
62:471 63:1833 64:1783 65:1781 66:2168 67:272
68:634 69:357 80:441 81:176 82:53 128:147
129:260 130:67 131:80 132:17 134:177 135:16
136:185 137:114 138:125 139:31 140:164 141:134
142:112 143:49 144:62 145:39 146:290 147:71
148:316 149:87 150:119 151:60 152:210 153:57
154:1 155:130 156:60 157:62 158:135 159:137
160:46 161:49 162:369 163:71 164:331 165:178
166:104 167:211 168:182 169:96 170:299 171:8
192:5501 193:2443 194:2008 195:1310 196:515 198:3636
199:2838 200:3062 201:5 202:4235 203:5376 204:2960
205:2052 206:2263 207:2577 208:2468 209:2817 210:990
211:401 212:939 213:953 214:23 215:25 216:3353
217:795 218:120 219:78 220:113 221:17
End of report
