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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 18 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130288
Prefixes after maximum aggregation: 80663
Unique aggregates announced to Internet: 62331
Total ASes present in the Internet Routing Table: 16205
Origin-only ASes present in the Internet Routing Table: 14066
Origin ASes announcing only one prefix: 6434
Transit ASes present in the Internet Routing Table: 2139
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: 28
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: 1259324772
Equivalent to 75 /8s, 15 /16s and 197 /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: 57584
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23641
Total APNIC prefixes after maximum aggregation: 12957
Prefixes being announced from the APNIC address blocks: 22016
Unique aggregates announced from the APNIC address blocks: 12590
APNIC Region origin ASes present in the Internet Routing Table: 1946
APNIC Region origin ASes announcing only one prefix: 577
APNIC Region transit ASes present in the Internet Routing Table: 315
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 128065792
Equivalent to 7 /8s, 162 /16s and 33 /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: 76972
Total ARIN prefixes after maximum aggregation: 47966
Prefixes being announced from the ARIN address blocks: 59680
Unique aggregates announced from the ARIN address blocks: 20555
ARIN Region origin ASes present in the Internet Routing Table: 8749
ARIN Region origin ASes announcing only one prefix: 3045
ARIN Region transit ASes present in the Internet Routing Table: 830
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 209282976
Equivalent to 12 /8s, 121 /16s and 103 /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: 22983
Total RIPE prefixes after maximum aggregation: 16792
Prefixes being announced from the RIPE address blocks: 19866
Unique aggregates announced from the RIPE address blocks: 13164
RIPE Region origin ASes present in the Internet Routing Table: 4980
RIPE Region origin ASes announcing only one prefix: 2676
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: 28
Number of RIPE addresses announced to Internet: 141434112
Equivalent to 8 /8s, 110 /16s and 29 /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: 5582
Total LACNIC prefixes after maximum aggregation: 2246
Prefixes being announced from the LACNIC address blocks: 5095
Unique aggregates announced from the LACNIC address blocks: 3041
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: 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: 13479424
Equivalent to 0 /8s, 205 /16s and 174 /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: 1109
Total AfriNIC prefixes after maximum aggregation: 702
Prefixes being announced from the AfriNIC address blocks: 722
Unique aggregates announced from the AfriNIC address blocks: 555
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: 12
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1753088
Equivalent to 0 /8s, 26 /16s and 192 /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 952 1120 681 Telstra Pty Ltd
2907 374 1864 350 SINET Japan
4134 370 2419 111 Data Communications Bureau
4755 369 131 59 Videsh Sanchar Nigam Ltd. Aut
9443 338 72 83 Primus Telecommunications
703 325 355 258 UUNET
17557 299 21 147 Pakistan Telecom
17676 280 4140 31 XTAGE CORPORATION
2764 279 287 239 connect.com.au pty ltd
7474 269 306 213 Optus Communications Pty Ltd
4766 265 2896 191 Korea Internet Exchange for "
4538 248 1778 22 China Education and Research
9583 236 44 11 Satyam Infoway Ltd.,
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
9942 203 70 117 COMindico Australia
17642 155 40 114 RequestDSL BGP AS# for Sydney
4739 145 60 134 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 1373 7033 951 AT&T
1239 922 3093 666 Sprint
209 882 3474 535 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 586 316 330 Charter Communications
7843 526 496 121 Adelphia Corp.
852 515 1107 408 Telus Advanced Communications
7066 510 207 271 Virginia Polytechnic Institut
7132 475 7193 308 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 392 329 101 EarthLink, Inc.
705 374 180 230 UUNET Technologies, Inc.
376 359 359 113 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 695 2093 576 UUNET - Commercial IP service
3301 311 1170 288 TeliaNet Sweden
3320 274 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 187 174 136 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 152 182 107 France Telecom Transpac's Tra
3303 144 557 139 Swisscom Ltd
719 134 288 104 LANLINK autonomous system
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
6746 103 16 77 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 343 110 102 ImpSat
8151 230 351 124 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 127 205 91 AVANTEL, S.A.
6147 123 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 79 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 60 4 22 ANDINATEL S.A.
27699 60 152 15 TELECOMUNICACOES DE SAO PAULO
1916 59 262 39 Fundacao de Amparo a Pesquisa
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 88 7 23 Internet Egypt Network
2905 59 245 52 The Internetworking Company o
2561 55 6 3 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
9129 25 3 4 UUNET Kenya
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
3208 17 2 1 ARN Network
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
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 1373 422 AT&T
7843 526 405 Adelphia Corp.
6198 614 390 BellSouth Network Solutions,
209 882 347 Qwest
27364 338 315 Armstrong Cable Services
4755 369 310 Videsh Sanchar Nigam Ltd. Aut
5668 312 293 Century Telephone
4355 392 291 EarthLink, Inc.
22773 305 281 Cox Communications, Inc. Atla
1221 952 271 Telstra Pty Ltd
6347 348 269 SAVVIS Communications Corpora
4134 370 259 Data Communications Bureau
1239 922 256 Sprint
20115 586 256 Charter Communications
9443 338 255 Primus Telecommunications
17676 280 249 XTAGE CORPORATION
376 359 246 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
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 /16:7464 /17:1826 /18:3261
/19:8665 /20:9185 /21:6640 /22:9427 /23:10907 /24:71181
/25:185 /26:246 /27:165 /28:71 /29:24 /30:51
/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 1373 AT&T
6198 475 614 BellSouth Network Solutions,
701 442 1432 UUNET Technologies, Inc.
702 417 695 UUNET - Commercial IP service
7066 402 510 Virginia Polytechnic Institut
20115 366 586 Charter Communications
690 361 400 Merit Network
27364 332 338 Armstrong Cable Services
1239 328 922 Sprint
3356 316 631 Level 3 Communications, LLC
209 309 882 Qwest
5668 278 312 Century Telephone
19029 261 410 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
4355 218 392 EarthLink, Inc.
3320 217 274 Deutsche Telekom AG
6517 212 237 Yipes Communications, Inc.
14824 201 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:754 13:1 15:6 16:1 17:3
20:7 24:852 32:89 38:42 40:23 43:1
44:2 55:1 57:14 61:344 62:470 63:1838
64:1798 65:1786 66:2203 67:280 68:561 69:332
80:440 81:169 82:71 128:158 129:160 130:68
131:83 132:18 134:174 135:10 136:184 137:119
138:134 139:52 140:192 141:138 142:110 143:48
144:59 145:36 146:287 147:71 148:310 149:81
150:120 151:60 152:209 153:59 154:1 155:128
156:59 157:61 158:141 159:136 160:46 161:68
162:364 163:70 164:315 165:167 166:107 167:210
168:179 169:96 170:311 171:9 192:5471 193:2428
194:2005 195:1295 196:514 198:3623 199:2843 200:3036
201:3 202:4180 203:5373 204:2946 205:2016 206:2279
207:2620 208:2498 209:2799 210:953 211:398 212:893
213:977 214:17 215:25 216:3365 217:793 218:118
219:84 220:113 221:17 222:1
End of report
