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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 05 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 129970
Prefixes after maximum aggregation: 80710
Unique aggregates announced to Internet: 61608
Total ASes present in the Internet Routing Table: 16144
Origin-only ASes present in the Internet Routing Table: 14016
Origin ASes announcing only one prefix: 6396
Transit ASes present in the Internet Routing Table: 2128
Transit-only ASes present in the Internet Routing Table: 74
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: 6
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1254227076
Equivalent to 74 /8s, 193 /16s and 252 /24s
Percentage of available address space announced: 33.8
Percentage of allocated address space announced: 60.5
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57505
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23342
Total APNIC prefixes after maximum aggregation: 12914
Prefixes being announced from the APNIC address blocks: 21758
Unique aggregates announced from the APNIC address blocks: 12525
APNIC Region origin ASes present in the Internet Routing Table: 1942
APNIC Region origin ASes announcing only one prefix: 576
APNIC Region transit ASes present in the Internet Routing Table: 311
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 124990208
Equivalent to 7 /8s, 115 /16s and 51 /24s
Percentage of available APNIC address space announced: 67.3
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: 77035
Total ARIN prefixes after maximum aggregation: 48034
Prefixes being announced from the ARIN address blocks: 59706
Unique aggregates announced from the ARIN address blocks: 20516
ARIN Region origin ASes present in the Internet Routing Table: 8738
ARIN Region origin ASes announcing only one prefix: 3026
ARIN Region transit ASes present in the Internet Routing Table: 836
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 208272288
Equivalent to 12 /8s, 105 /16s and 251 /24s
Percentage of available ARIN address space announced: 73.0
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: 22966
Total RIPE prefixes after maximum aggregation: 16806
Prefixes being announced from the RIPE address blocks: 19836
Unique aggregates announced from the RIPE address blocks: 12384
RIPE Region origin ASes present in the Internet Routing Table: 4937
RIPE Region origin ASes announcing only one prefix: 2661
RIPE Region transit ASes present in the Internet Routing Table: 871
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 142024960
Equivalent to 8 /8s, 119 /16s and 33 /24s
Percentage of available RIPE address space announced: 77.0
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: 5515
Total LACNIC prefixes after maximum aggregation: 2252
Prefixes being announced from the LACNIC address blocks: 5037
Unique aggregates announced from the LACNIC address blocks: 3209
LACNIC Region origin ASes present in the Internet Routing Table: 357
LACNIC Region origin ASes announcing only one prefix: 102
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 12
Number of LACNIC addresses announced to Internet: 13481472
Equivalent to 0 /8s, 205 /16s and 182 /24s
Percentage of available LACNIC address space announced: 40.2
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1107
Total AfriNIC prefixes after maximum aggregation: 704
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: 97
AfriNIC Region origin ASes announcing only one prefix: 31
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1748736
Equivalent to 0 /8s, 26 /16s and 175 /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 946 1108 673 Telstra Pty Ltd
4755 386 132 68 Videsh Sanchar Nigam Ltd. Aut
4134 375 2371 109 Data Communications Bureau
2907 368 1863 344 SINET Japan
703 333 356 266 UUNET
17557 297 21 152 Pakistan Telecom
2764 295 288 254 connect.com.au pty ltd
17676 279 4124 34 XTAGE CORPORATION
9583 269 44 11 Satyam Infoway Ltd.,
7474 265 306 211 Optus Communications Pty Ltd
4766 257 2463 184 Korea Internet Exchange for "
3786 233 773 203 DACOM Corporation
4538 215 1714 21 China Education and Research
9443 213 72 83 Primus Telecommunications
9800 206 342 56 CHINA UNICOM
9498 204 21 28 BHARTI BT INTERNET LTD.
9942 202 70 117 COMindico Australia
9929 192 163 36 China Netcom Corp.
17642 157 40 116 RequestDSL BGP AS# for Sydney
4739 145 58 134 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1436 8682 993 UUNET Technologies, Inc.
7018 1361 7033 942 AT&T
209 1232 3471 529 Qwest
1239 922 3053 666 Sprint
18566 716 176 8 Covad Communications
4323 686 592 200 Time Warner Communications, I
6197 649 401 269 BellSouth Network Solutions,
3356 617 10803 507 Level 3 Communications, LLC
6198 574 328 197 BellSouth Network Solutions,
20115 539 278 305 Charter Communications
7843 521 482 119 Adelphia Corp.
852 513 1107 407 Telus Advanced Communications
7066 511 207 271 Virginia Polytechnic Institut
7132 500 7192 301 Southwestern Bell Internet Se
19029 423 174 274 New Edge Networks
690 410 59 275 Merit Network
4355 400 331 107 EarthLink, Inc.
2386 393 542 202 AT&T Data Communications Serv
705 392 183 236 UUNET Technologies, Inc.
376 359 359 115 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 699 2094 580 UUNET - Commercial IP service
3301 310 1169 288 TeliaNet Sweden
3320 279 2004 236 Deutsche Telekom AG
8220 259 421 248 COLT Internet - International
1257 239 455 190 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
5400 187 174 135 BT Ignite European Backbone
5515 182 778 143 Sonera Solution Autonomous Sy
3215 179 704 88 France Telecom Transpac
786 174 1825 174 The JANET IP Service
8708 160 111 154 Romania Data Systems S.A.
3303 147 557 141 Swisscom Ltd
25186 136 165 96 France Telecom Transpac's Tra
719 135 288 104 LANLINK autonomous system
6664 134 11 99 TELECOM ITALIA
12302 126 18 33 MobiFon S.A.
3246 125 374 123 Song Networks
2856 117 1294 108 BTnet UK Regional network
3269 117 910 64 TELECOM ITALIA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 337 104 99 ImpSat
8151 234 351 126 UniNet S.A. de C.V.
7303 194 42 47 Telecom Argentina Stet-France
11172 192 77 42 Servicios Alestra S.A de C.V
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 127 205 91 AVANTEL, S.A.
10620 122 8 26 TVCABLE BOGOTA
6147 111 70 19 Telefonica Del Peru
11340 106 3 29 Red Universitaria Nacional
11992 88 24 32 Integrated Systems
8065 86 10 18 Empresas Publicas de Medellin
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
4270 68 18 9 Red de Interconexion Universi
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
1916 60 266 40 Fundacao de Amparo a Pesquisa
27699 60 152 15 TELECOMUNICACOES DE SAO PAULO
4926 57 4 48 Telintar S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 250 632 219 The Internet Solution
2018 94 297 92 Tertiary Education Network
5536 89 7 24 Internet Egypt Network
2905 59 245 52 The Internetworking Company o
2561 56 6 3 Egyptian Universities Network
11845 36 9 10 Data Pro Business Online
11569 31 29 28 satellite data networks
16284 30 3 5 GST-N Autonomous System
12455 26 4 2 Jambonet Autonomous system
5713 24 93 22 Telkom SA Ltd
9129 24 3 4 UUNET Kenya
16637 24 9 17 Johnnic e-Ventures
6713 22 38 9 Itissalat Al-MAGHRIB
10798 17 1 11 Standard Bank of South Africa
15706 15 2 5 Sudatel Internet Exchange Aut
3208 14 2 1 ARN Network
8524 14 1 3 AUCEGYPT Autonomous System
12258 14 3 9 Vodacom Internet Company
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 716 708 Covad Communications
209 1232 703 Qwest
4323 686 486 Time Warner Communications, I
7018 1361 419 AT&T
7843 521 402 Adelphia Corp.
6197 649 380 BellSouth Network Solutions,
6198 574 377 BellSouth Network Solutions,
4755 386 318 Videsh Sanchar Nigam Ltd. Aut
27364 337 310 Armstrong Cable Services
4355 400 293 EarthLink, Inc.
5668 310 293 Century Telephone
22909 306 286 Comcast Cable Corporation
22773 298 279 Cox Communications, Inc. Atla
1221 946 273 Telstra Pty Ltd
4134 375 266 Data Communications Bureau
6347 346 266 SAVVIS Communications Corpora
9583 269 258 Satyam Infoway Ltd.,
1239 922 256 Sprint
17676 279 245 XTAGE CORPORATION
376 359 244 Reseau Interordinateurs Scien
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
64512 PRIVATE 130.150.241.0/24 2152 California State Uni
64512 PRIVATE 130.150.242.0/24 2152 California State Uni
64512 PRIVATE 130.150.244.0/24 2152 California State Uni
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65535 PRIVATE 203.115.81.0/24 23682 Broadband Pacenet In
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
192.153.136.0/21 568 DISO-UNRRA
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 /8:20 /9:4 /10:6 /11:13 /12:56
/13:96 /14:271 /15:468 /16:7451 /17:1789 /18:3246
/19:8618 /20:9183 /21:6703 /22:9498 /23:10869 /24:70943
/25:164 /26:227 /27:161 /28:71 /29:23 /30:49
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 710 716 Covad Communications
6197 508 649 BellSouth Network Solutions,
209 507 1232 Qwest
7018 490 1361 AT&T
701 441 1436 UUNET Technologies, Inc.
6198 441 574 BellSouth Network Solutions,
702 420 699 UUNET - Commercial IP service
7066 403 511 Virginia Polytechnic Institut
690 371 410 Merit Network
20115 347 539 Charter Communications
27364 331 337 Armstrong Cable Services
1239 327 922 Sprint
3356 308 617 Level 3 Communications, LLC
5668 276 310 Century Telephone
19029 274 423 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 221 279 Deutsche Telekom AG
4355 221 400 EarthLink, Inc.
6517 207 231 Yipes Communications, Inc.
14824 200 225 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:746 13:1 15:6 16:1 17:2
20:7 24:848 25:1 32:82 38:52 40:23
43:1 44:2 55:1 56:2 57:14 61:337
62:458 63:1837 64:1789 65:1802 66:2167 67:277
68:400 69:295 80:431 81:157 82:66 128:154
129:157 130:66 131:82 132:17 134:172 135:10
136:180 137:120 138:131 139:48 140:194 141:138
142:101 143:46 144:59 145:36 146:282 147:67
148:304 149:82 150:121 151:78 152:214 153:59
154:1 155:129 156:63 157:59 158:140 159:141
160:46 161:68 162:363 163:67 164:320 165:151
166:102 167:309 168:177 169:96 170:317 171:9
192:5452 193:2420 194:2042 195:1340 196:511 198:3614
199:2815 200:3027 201:3 202:4159 203:5339 204:2956
205:2004 206:2296 207:2609 208:2499 209:2825 210:953
211:395 212:972 213:941 214:17 215:25 216:3326
217:783 218:113 219:91 220:115 221:17 222:1
End of report
