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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 04 Feb, 2004
Analysis Summary
----------------
BGP routing table entries examined: 132356
Prefixes after maximum aggregation: 81431
Unique aggregates announced to Internet: 64219
Total ASes present in the Internet Routing Table: 16566
Origin-only ASes present in the Internet Routing Table: 14398
Origin ASes announcing only one prefix: 6645
Transit ASes present in the Internet Routing Table: 2168
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: 28
Illegal AS announcements present in the Routing Table: 7
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1283253860
Equivalent to 76 /8s, 124 /16s and 230 /24s
Percentage of available address space announced: 34.6
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 58554
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24541
Total APNIC prefixes after maximum aggregation: 13240
Prefixes being announced from the APNIC address blocks: 22956
Unique aggregates announced from the APNIC address blocks: 13288
APNIC Region origin ASes present in the Internet Routing Table: 1990
APNIC Region origin ASes announcing only one prefix: 592
APNIC Region transit ASes present in the Internet Routing Table: 317
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 135294336
Equivalent to 8 /8s, 16 /16s and 109 /24s
Percentage of available APNIC address space announced: 72.9
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: 77472
Total ARIN prefixes after maximum aggregation: 47995
Prefixes being announced from the ARIN address blocks: 59959
Unique aggregates announced from the ARIN address blocks: 20883
ARIN Region origin ASes present in the Internet Routing Table: 8904
ARIN Region origin ASes announcing only one prefix: 3149
ARIN Region transit ASes present in the Internet Routing Table: 850
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 215847072
Equivalent to 12 /8s, 221 /16s and 144 /24s
Percentage of available ARIN address space announced: 71.5
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
31744 - 32767
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/8, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 23750
Total RIPE prefixes after maximum aggregation: 17313
Prefixes being announced from the RIPE address blocks: 20575
Unique aggregates announced from the RIPE address blocks: 13705
RIPE Region origin ASes present in the Internet Routing Table: 5145
RIPE Region origin ASes announcing only one prefix: 2775
RIPE Region transit ASes present in the Internet Routing Table: 885
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 150774656
Equivalent to 8 /8s, 252 /16s and 163 /24s
Percentage of available RIPE address space announced: 69.1
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: 5435
Total LACNIC prefixes after maximum aggregation: 2206
Prefixes being announced from the LACNIC address blocks: 5067
Unique aggregates announced from the LACNIC address blocks: 3220
LACNIC Region origin ASes present in the Internet Routing Table: 368
LACNIC Region origin ASes announcing only one prefix: 103
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 12
Number of LACNIC addresses announced to Internet: 14090752
Equivalent to 0 /8s, 215 /16s and 2 /24s
Percentage of available LACNIC address space announced: 42.0
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1153
Total AfriNIC prefixes after maximum aggregation: 677
Prefixes being announced from the AfriNIC address blocks: 736
Unique aggregates announced from the AfriNIC address blocks: 570
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 26
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1766912
Equivalent to 0 /8s, 26 /16s and 246 /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 936 1120 662 Telstra Pty Ltd
4134 669 2489 117 Data Communications Bureau
4766 421 2905 249 Korea Internet Exchange for "
2907 361 1831 337 SINET Japan
4755 347 130 58 Videsh Sanchar Nigam Ltd. Aut
9443 345 69 80 Primus Telecommunications
703 340 372 263 UUNET
9583 337 40 90 Satyam Infoway Ltd.,
17557 321 23 157 Pakistan Telecom
17676 295 4348 38 XTAGE CORPORATION
2764 281 288 235 connect.com.au pty ltd
7474 275 305 215 Optus Communications Pty Ltd
9942 227 69 130 COMindico Australia
9929 219 154 30 China Netcom Corp.
9800 214 347 55 CHINA UNICOM
9498 187 30 35 BHARTI BT INTERNET LTD.
17642 153 40 112 RequestDSL BGP AS# for Sydney
17964 151 117 58 Beijing Dian-Xin-Tong Network
4739 148 60 135 Commerical Internet eXchange
4837 147 1425 97 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1401 7007 977 AT&T
701 1374 8661 967 UUNET Technologies, Inc.
1239 945 3089 660 Sprint
3356 796 10930 637 Level 3 Communications, LLC
6197 731 434 273 BellSouth Network Solutions,
209 715 3532 504 Qwest
18566 687 192 9 Covad Communications
4323 682 544 202 Time Warner Communications, I
20115 613 335 335 Charter Communications
6198 544 354 194 BellSouth Network Solutions,
7843 510 570 116 Adelphia Corp.
7066 503 207 271 Virginia Polytechnic Institut
852 502 1123 399 Telus Advanced Communications
7132 453 7449 312 Southwestern Bell Internet Se
2386 418 562 221 AT&T Data Communications Serv
690 398 58 268 Merit Network
4355 395 323 101 EarthLink, Inc.
19029 390 168 250 New Edge Networks
376 382 359 114 Reseau Interordinateurs Scien
27364 382 28 23 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 686 2073 571 UUNET - Commercial IP service
3301 337 1174 316 TeliaNet Sweden
3320 285 1972 232 Deutsche Telekom AG
8220 265 411 251 COLT Internet - International
680 241 2027 237 DFN-IP service G-WiN
719 233 288 105 LANLINK autonomous system
1257 222 505 191 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 187 421 185 Song Networks
786 175 1826 175 The JANET IP Service
8708 171 111 162 Romania Data Systems S.A.
5515 169 762 135 Sonera Solution Autonomous Sy
25186 167 201 108 France Telecom Transpac's Tra
3215 154 787 70 France Telecom Transpac
5400 147 223 134 BT Ignite European Backbone
3303 137 620 137 Swisscom Ltd
12302 125 18 32 MobiFon S.A.
3269 123 1005 65 TELECOM ITALIA
2856 118 1294 108 BTnet UK Regional network
6746 112 18 100 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 357 121 66 ImpSat
8151 246 368 125 UniNet S.A. de C.V.
11172 204 77 44 Servicios Alestra S.A de C.V
16814 154 10 5 NSS, S.A.
6503 137 204 92 AVANTEL, S.A.
7303 137 51 30 Telecom Argentina Stet-France
6505 132 90 92 Global One Communicaoes Ltda
6147 124 78 20 Telefonica Del Peru
11556 88 73 25 Cable-Wireless Panama
15311 78 18 38 Telefonica Empresas
6535 77 5 19 Chilesat Servicios Empresari
4270 71 18 9 Red de Interconexion Universi
11992 71 25 28 Integrated Systems
7080 66 4 2 Electronica y Comunicaciones
11311 66 7 22 Sinectis S.A.
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
10292 61 6 28 TELECOMMUNICATIONS OF JAMAICA
14420 60 4 26 ANDINATEL S.A.
1916 59 247 39 Fundacao de Amparo a Pesquisa
7738 59 218 13 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 249 632 218 The Internet Solution
5536 104 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 272 80 The Internetworking Company o
2561 58 6 3 Egyptian Universities Network
11845 36 9 11 Data Pro Business Online
3208 33 2 1 ARN Network
16637 26 9 19 Johnnic e-Ventures
9129 25 3 4 UUNET Kenya
5713 24 93 22 Telkom SA Ltd
24835 23 18 6 RAYA Telecom - Egypt
6713 22 38 9 Itissalat Al-MAGHRIB
12455 22 4 2 Jambonet Autonomous system
8524 18 2 4 AUCEGYPT Autonomous System
10798 18 1 12 Standard Bank of South Africa
15706 16 2 3 Sudatel Internet Exchange Aut
12258 15 3 10 Vodacom Internet Company
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 687 678 Covad Communications
4134 669 552 Data Communications Bureau
4323 682 480 Time Warner Communications, I
6197 731 458 BellSouth Network Solutions,
701 1374 407 UUNET Technologies, Inc.
7843 510 394 Adelphia Corp.
27364 382 359 Armstrong Cable Services
6198 544 350 BellSouth Network Solutions,
5668 342 326 Century Telephone
22909 337 319 Comcast Cable Corporation
22773 341 309 Cox Communications, Inc. Atla
4355 395 294 EarthLink, Inc.
6140 357 291 ImpSat
4755 347 289 Videsh Sanchar Nigam Ltd. Aut
1239 945 285 Sprint
20115 613 278 Charter Communications
1221 936 274 Telstra Pty Ltd
376 382 268 Reseau Interordinateurs Scien
9443 345 265 Primus Telecommunications
17676 295 257 XTAGE CORPORATION
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65412 PRIVATE 64.70.42.0/24 3561 Cable & Wireless USA
64198 RESERVED 192.107.195.0/24 22767 NASA Earth Science D
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64198 RESERVED 198.10.49.0/24 22767 NASA Earth Science D
64512 PRIVATE 204.70.1.0/24 3561 Cable & Wireless USA
23861 UNALLOCATED 210.93.46.0/24 3786 DACOM Corporation
23861 UNALLOCATED 210.93.47.0/24 3786 DACOM Corporation
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 /12:58
/13:105 /14:282 /15:502 /16:7552 /17:1876 /18:3462
/19:8906 /20:9242 /21:6754 /22:9523 /23:11075 /24:72323
/25:163 /26:260 /27:150 /28:27 /29:5 /30:38
/31:0 /32:9
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 670 687 Covad Communications
6197 578 731 BellSouth Network Solutions,
7018 508 1401 AT&T
3356 424 796 Level 3 Communications, LLC
702 416 686 UUNET - Commercial IP service
701 397 1374 UUNET Technologies, Inc.
7066 397 503 Virginia Polytechnic Institut
6198 392 544 BellSouth Network Solutions,
20115 388 613 Charter Communications
27364 375 382 Armstrong Cable Services
690 361 398 Merit Network
1239 331 945 Sprint
5668 303 342 Century Telephone
19029 256 390 New Edge Networks
4766 245 421 Korea Internet Exchange for "
25844 244 244 Skadden, Arps, Slate, Meagher
3320 233 285 Deutsche Telekom AG
6517 224 248 Yipes Communications, Inc.
6386 221 247 bellsouth.net, inc.
13609 218 258 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:769 13:1 15:6 16:1 17:3
20:7 24:852 32:84 38:44 40:26 44:3
55:1 56:1 57:14 61:360 62:458 63:1825
64:1834 65:1837 66:2316 67:271 68:601 69:366
80:455 81:204 82:73 83:1 128:143 129:266
130:73 131:79 132:16 134:180 135:16 136:128
137:116 138:146 139:40 140:160 141:135 142:106
143:48 144:80 145:39 146:292 147:75 148:301
149:85 150:121 151:61 152:214 153:60 154:1
155:132 156:66 157:55 158:134 159:142 160:46
161:51 162:368 163:71 164:331 165:171 166:106
167:214 168:177 169:96 170:304 171:8 192:5531
193:2543 194:2011 195:1316 196:518 198:3628 199:2881
200:2976 201:7 202:4435 203:5431 204:3024 205:2005
206:2267 207:2579 208:2416 209:2893 210:1050 211:429
212:897 213:998 214:23 215:25 216:3353 217:819
218:118 219:94 220:168 221:18 222:1
End of report
