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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 17 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130227
Prefixes after maximum aggregation: 80669
Unique aggregates announced to Internet: 62308
Total ASes present in the Internet Routing Table: 16183
Origin-only ASes present in the Internet Routing Table: 14051
Origin ASes announcing only one prefix: 6429
Transit ASes present in the Internet Routing Table: 2132
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 21
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1258992484
Equivalent to 75 /8s, 10 /16s and 179 /24s
Percentage of available address space announced: 34.0
Percentage of allocated address space announced: 60.7
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57594
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23604
Total APNIC prefixes after maximum aggregation: 12945
Prefixes being announced from the APNIC address blocks: 21976
Unique aggregates announced from the APNIC address blocks: 12599
APNIC Region origin ASes present in the Internet Routing Table: 1939
APNIC Region origin ASes announcing only one prefix: 572
APNIC Region transit ASes present in the Internet Routing Table: 314
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 128038400
Equivalent to 7 /8s, 161 /16s and 182 /24s
Percentage of available APNIC address space announced: 69.0
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: 76896
Total ARIN prefixes after maximum aggregation: 47909
Prefixes being announced from the ARIN address blocks: 59636
Unique aggregates announced from the ARIN address blocks: 20550
ARIN Region origin ASes present in the Internet Routing Table: 8743
ARIN Region origin ASes announcing only one prefix: 3042
ARIN Region transit ASes present in the Internet Routing Table: 828
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 209237920
Equivalent to 12 /8s, 120 /16s and 183 /24s
Percentage of available ARIN address space announced: 73.4
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: 23084
Total RIPE prefixes after maximum aggregation: 16889
Prefixes being announced from the RIPE address blocks: 19913
Unique aggregates announced from the RIPE address blocks: 13153
RIPE Region origin ASes present in the Internet Routing Table: 4975
RIPE Region origin ASes announcing only one prefix: 2680
RIPE Region transit ASes present in the Internet Routing Table: 876
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 141387520
Equivalent to 8 /8s, 109 /16s and 103 /24s
Percentage of available RIPE address space announced: 76.6
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, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5566
Total LACNIC prefixes after maximum aggregation: 2232
Prefixes being announced from the LACNIC address blocks: 5075
Unique aggregates announced from the LACNIC address blocks: 3030
LACNIC Region origin ASes present in the Internet Routing Table: 358
LACNIC Region origin ASes announcing only one prefix: 104
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: 12
Number of LACNIC addresses announced to Internet: 13334784
Equivalent to 0 /8s, 203 /16s and 121 /24s
Percentage of available LACNIC address space announced: 39.7
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1076
Total AfriNIC prefixes after maximum aggregation: 694
Prefixes being announced from the AfriNIC address blocks: 719
Unique aggregates announced from the AfriNIC address blocks: 553
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 31
AfriNIC Region transit ASes present in the Internet Routing Table: 9
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1752576
Equivalent to 0 /8s, 26 /16s and 190 /24s
Percentage of available AfriNIC address space announced: 10.4
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 953 1105 686 Telstra Pty Ltd
2907 374 1864 350 SINET Japan
4134 369 2419 111 Data Communications Bureau
4755 367 131 58 Videsh Sanchar Nigam Ltd. Aut
9443 337 72 83 Primus Telecommunications
703 325 355 258 UUNET
17557 299 21 147 Pakistan Telecom
2764 281 288 241 connect.com.au pty ltd
17676 280 4140 31 XTAGE CORPORATION
7474 269 306 213 Optus Communications Pty Ltd
4766 264 2896 191 Korea Internet Exchange for "
4538 248 1778 22 China Education and Research
3786 234 773 203 DACOM Corporation
9929 213 165 38 China Netcom Corp.
9498 207 22 29 BHARTI BT INTERNET LTD.
9800 207 343 57 CHINA UNICOM
9583 205 44 11 Satyam Infoway Ltd.,
9942 205 70 117 COMindico Australia
17642 155 40 114 RequestDSL BGP AS# for Sydney
4739 146 60 135 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1432 8651 990 UUNET Technologies, Inc.
7018 1371 7032 949 AT&T
1239 923 3053 667 Sprint
209 881 3474 534 Qwest
18566 724 176 8 Covad Communications
6197 715 432 212 BellSouth Network Solutions,
4323 687 593 200 Time Warner Communications, I
3356 631 10803 518 Level 3 Communications, LLC
6198 614 373 224 BellSouth Network Solutions,
20115 585 316 329 Charter Communications
7843 526 496 121 Adelphia Corp.
852 515 1107 408 Telus Advanced Communications
7066 510 207 271 Virginia Polytechnic Institut
7132 472 7192 307 Southwestern Bell Internet Se
19029 410 174 275 New Edge Networks
690 400 58 270 Merit Network
2386 398 543 206 AT&T Data Communications Serv
4355 394 329 101 EarthLink, Inc.
705 381 180 237 UUNET Technologies, Inc.
376 358 359 113 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 694 2093 575 UUNET - Commercial IP service
3301 312 1170 289 TeliaNet Sweden
3320 273 1988 230 Deutsche Telekom AG
8220 258 421 247 COLT Internet - International
1257 238 455 189 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
5400 186 174 135 BT Ignite European Backbone
5515 176 778 138 Sonera Solution Autonomous Sy
786 175 1826 175 The JANET IP Service
3215 162 687 82 France Telecom Transpac
8708 161 111 155 Romania Data Systems S.A.
25186 154 182 109 France Telecom Transpac's Tra
3303 144 557 139 Swisscom Ltd
719 134 288 104 LANLINK autonomous system
6664 132 11 97 TELECOM ITALIA
3246 126 378 124 Song Networks
12302 126 18 33 MobiFon S.A.
3269 118 911 65 TELECOM ITALIA
2856 117 1294 108 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 343 110 102 ImpSat
8151 231 351 125 UniNet S.A. de C.V.
11172 192 77 42 Servicios Alestra S.A de C.V
7303 181 42 36 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 132 90 92 Global One Communicaoes Ltda
6503 126 205 90 AVANTEL, S.A.
6147 124 70 19 Telefonica Del Peru
10620 122 8 26 TVCABLE BOGOTA
11340 106 3 29 Red Universitaria Nacional
11992 86 25 31 Integrated Systems
8065 78 10 17 Empresas Publicas de Medellin
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
4270 71 18 9 Red de Interconexion Universi
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
14420 61 4 20 ANDINATEL S.A.
27699 60 152 15 TELECOMUNICACOES DE SAO PAULO
14535 59 6 6 Techtel S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 249 632 219 The Internet Solution
2018 94 297 92 Tertiary Education Network
5536 88 7 23 Internet Egypt Network
2905 58 245 51 The Internetworking Company o
2561 45 6 2 Egyptian Universities Network
11845 35 9 10 Data Pro Business Online
11569 31 29 28 satellite data networks
16284 30 3 5 GST-N Autonomous System
5713 24 93 22 Telkom SA Ltd
12455 24 4 2 Jambonet Autonomous system
16637 24 9 17 Johnnic e-Ventures
6713 22 38 9 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
8524 17 1 3 AUCEGYPT Autonomous System
9129 17 3 2 UUNET Kenya
3208 15 2 1 ARN Network
12258 15 3 10 Vodacom Internet Company
15706 15 2 5 Sudatel Internet Exchange Aut
17148 14 1 8 First National Bank
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 724 716 Covad Communications
6197 715 503 BellSouth Network Solutions,
4323 687 487 Time Warner Communications, I
7018 1371 422 AT&T
7843 526 405 Adelphia Corp.
6198 614 390 BellSouth Network Solutions,
209 881 347 Qwest
27364 338 315 Armstrong Cable Services
4755 367 309 Videsh Sanchar Nigam Ltd. Aut
22909 312 302 Comcast Cable Corporation
4355 394 293 EarthLink, Inc.
5668 311 292 Century Telephone
22773 305 281 Cox Communications, Inc. Atla
6347 350 271 SAVVIS Communications Corpora
1221 953 267 Telstra Pty Ltd
4134 369 258 Data Communications Bureau
1239 923 256 Sprint
20115 585 256 Charter Communications
9443 337 254 Primus Telecommunications
17676 280 249 XTAGE CORPORATION
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
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
192.119.135.0/24 270 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 /11:13 /12:57
/13:97 /14:275 /15:478 /16:7460 /17:1826 /18:3257
/19:8661 /20:9172 /21:6647 /22:9432 /23:10894 /24:71147
/25:185 /26:247 /27:165 /28:71 /29:24 /30:49
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 718 724 Covad Communications
6197 571 715 BellSouth Network Solutions,
7018 496 1371 AT&T
6198 475 614 BellSouth Network Solutions,
701 442 1432 UUNET Technologies, Inc.
702 416 694 UUNET - Commercial IP service
7066 402 510 Virginia Polytechnic Institut
20115 365 585 Charter Communications
690 361 400 Merit Network
1239 332 923 Sprint
27364 332 338 Armstrong Cable Services
3356 316 631 Level 3 Communications, LLC
209 309 881 Qwest
5668 277 311 Century Telephone
19029 261 410 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
4355 220 394 EarthLink, Inc.
3320 216 273 Deutsche Telekom AG
6517 211 236 Yipes Communications, Inc.
14824 201 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:758 13:1 15:6 16:1 17:3
20:7 24:853 32:82 38:42 40:23 43:1
44:2 55:1 57:14 61:347 62:467 63:1835
64:1798 65:1784 66:2178 67:277 68:562 69:333
80:437 81:169 82:71 128:157 129:160 130:68
131:83 132:18 134:174 135:10 136:184 137:119
138:132 139:48 140:193 141:138 142:106 143:48
144:59 145:36 146:284 147:71 148:310 149:84
150:120 151:78 152:209 153:59 154:1 155:128
156:65 157:61 158:141 159:135 160:46 161:68
162:364 163:67 164:324 165:167 166:107 167:209
168:178 169:96 170:311 171:9 192:5468 193:2417
194:2019 195:1337 196:511 198:3626 199:2843 200:3035
201:3 202:4159 203:5347 204:2946 205:2020 206:2280
207:2619 208:2498 209:2799 210:941 211:394 212:903
213:983 214:17 215:25 216:3355 217:793 218:117
219:83 220:112 221:17 222:1
End of report
