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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 29 Apr, 2004
Analysis Summary
----------------
BGP routing table entries examined: 137133
Prefixes after maximum aggregation: 83301
Unique aggregates announced to Internet: 66430
Total ASes present in the Internet Routing Table: 17119
Origin-only ASes present in the Internet Routing Table: 14842
Origin ASes announcing only one prefix: 6853
Transit ASes present in the Internet Routing Table: 2277
Transit-only ASes present in the Internet Routing Table: 81
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1283373188
Equivalent to 76 /8s, 126 /16s and 184 /24s
Percentage of available address space announced: 34.6
Percentage of allocated address space announced: 57.7
Percentage of available address space allocated: 60.0
Total number of prefixes smaller than registry allocations: 61523
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26205
Total APNIC prefixes after maximum aggregation: 13659
Prefixes being announced from the APNIC address blocks: 24513
Unique aggregates announced from the APNIC address blocks: 13642
APNIC Region origin ASes present in the Internet Routing Table: 2042
APNIC Region origin ASes announcing only one prefix: 606
APNIC Region transit ASes present in the Internet Routing Table: 332
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 145743616
Equivalent to 8 /8s, 175 /16s and 223 /24s
Percentage of available APNIC address space announced: 78.5
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: 78822
Total ARIN prefixes after maximum aggregation: 48767
Prefixes being announced from the ARIN address blocks: 60834
Unique aggregates announced from the ARIN address blocks: 21466
ARIN Region origin ASes present in the Internet Routing Table: 9140
ARIN Region origin ASes announcing only one prefix: 3248
ARIN Region transit ASes present in the Internet Routing Table: 895
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 222079776
Equivalent to 13 /8s, 60 /16s and 171 /24s
Percentage of available ARIN address space announced: 73.5
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: 25147
Total RIPE prefixes after maximum aggregation: 17987
Prefixes being announced from the RIPE address blocks: 21960
Unique aggregates announced from the RIPE address blocks: 14475
RIPE Region origin ASes present in the Internet Routing Table: 5392
RIPE Region origin ASes announcing only one prefix: 2874
RIPE Region transit ASes present in the Internet Routing Table: 933
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 160169472
Equivalent to 9 /8s, 139 /16s and 254 /24s
Percentage of available RIPE address space announced: 56.2
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, 80/5, 88/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5809
Total LACNIC prefixes after maximum aggregation: 2214
Prefixes being announced from the LACNIC address blocks: 5464
Unique aggregates announced from the LACNIC address blocks: 3401
LACNIC Region origin ASes present in the Internet Routing Table: 373
LACNIC Region origin ASes announcing only one prefix: 103
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14648832
Equivalent to 0 /8s, 223 /16s and 134 /24s
Percentage of available LACNIC address space announced: 43.7
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1149
Total AfriNIC prefixes after maximum aggregation: 674
Prefixes being announced from the AfriNIC address blocks: 755
Unique aggregates announced from the AfriNIC address blocks: 561
AfriNIC Region origin ASes present in the Internet Routing Table: 90
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1840128
Equivalent to 0 /8s, 28 /16s and 20 /24s
Percentage of available AfriNIC address space announced: 11.0
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 858 1091 625 Telstra Pty Ltd
4134 769 3480 138 Data Communications Bureau
4766 479 2917 258 Korea Internet Exchange for "
9583 474 40 83 Satyam Infoway Ltd.,
2907 357 1841 333 SINET Japan
9443 354 69 78 Primus Telecommunications
4755 351 125 49 Videsh Sanchar Nigam Ltd. Aut
9929 348 155 31 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 333 373 256 UUNET
17557 324 23 163 Pakistan Telecom
2764 291 273 239 connect.com.au pty ltd
7474 271 284 212 Optus Communications Pty Ltd
9942 222 70 125 COMindico Australia
9800 219 364 59 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 210 31 47 BHARTI BT INTERNET LTD.
4837 182 1683 105 chinanet IDC center beijing n
9304 169 159 24 Hutchison Telecom (HK)
7633 159 23 43 Software Technology Parks of
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1439 6955 1004 AT&T
701 1322 8539 948 UUNET Technologies, Inc.
1239 937 3032 634 Sprint
3356 895 10967 688 Level 3 Communications, LLC
209 752 3481 512 Qwest
4323 717 561 199 Time Warner Communications, I
18566 700 192 8 Covad Communications
6197 699 513 258 BellSouth Network Solutions,
6198 564 368 206 BellSouth Network Solutions,
852 513 1127 404 Telus Advanced Communications
20115 509 336 274 Charter Communications
7066 504 208 273 Virginia Polytechnic Institut
7843 503 640 112 Adelphia Corp.
7132 450 7847 332 Southwestern Bell Internet Se
2386 427 579 230 AT&T Data Communications Serv
4355 391 323 101 EarthLink, Inc.
6347 389 386 92 SAVVIS Communications Corpora
22909 385 840 24 Comcast Cable Corporation
376 380 343 112 Reseau Interordinateurs Scien
27364 379 29 24 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 662 2039 553 UUNET - Commercial IP service
3320 297 2477 237 Deutsche Telekom AG
3301 268 968 258 TeliaNet Sweden
8220 268 412 255 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 244 511 198 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
5515 201 779 143 Sonera Solution Autonomous Sy
719 200 288 103 LANLINK autonomous system
3246 196 449 194 Song Networks
25186 176 188 117 France Telecom Transpac's Tra
8708 175 111 164 Romania Data Systems S.A.
786 174 1810 174 The JANET IP Service
3215 171 839 69 France Telecom Transpac
5400 156 239 137 BT Ignite European Backbone
6746 137 28 114 Dynamic Network Technologies,
3269 134 1101 65 TELECOM ITALIA
3303 134 608 134 Swisscom Ltd
12302 122 18 29 MobiFon S.A.
1273 112 166 89 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 379 122 74 ImpSat
8151 260 356 128 UniNet S.A. de C.V.
11172 209 75 44 Servicios Alestra S.A de C.V
16814 163 11 6 NSS, S.A.
6147 148 78 20 Telefonica Del Peru
7303 140 53 27 Telecom Argentina Stet-France
6503 136 220 93 AVANTEL, S.A.
6505 132 90 91 Global One Communicaoes Ltda
11992 89 9 28 Integrated Systems
11556 88 73 25 Cable-Wireless Panama
6535 79 5 19 Chilesat Servicios Empresari
14420 77 5 33 ANDINATEL S.A.
15311 74 18 37 Telefonica Empresas
4270 71 18 9 Red de Interconexion Universi
11311 70 7 15 Sinectis S.A.
14535 70 6 5 Techtel S.A.
14259 69 4 5 GTD Internet S.A.
5639 64 7 13 Telecommunications Services o
7080 64 4 1 Electronica y Comunicaciones
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 254 632 219 The Internet Solution
5536 106 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 89 272 79 The Internetworking Company o
11845 36 9 11 Data Pro Business Online
9129 32 3 4 UUNET Kenya
24835 31 18 6 RAYA Telecom - Egypt
5713 26 125 24 Telkom SA Ltd
12455 25 4 2 Jambonet Autonomous system
14988 25 16 1 Botswana Telecommunications C
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
8524 22 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
15808 14 1 6 Communication Solutions Ltd i
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
3208 12 2 1 ARN Network
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 700 692 Covad Communications
4134 769 631 Data Communications Bureau
4323 717 518 Time Warner Communications, I
6197 699 441 BellSouth Network Solutions,
7843 503 391 Adelphia Corp.
9583 474 391 Satyam Infoway Ltd.,
701 1322 374 UUNET Technologies, Inc.
22909 385 361 Comcast Cable Corporation
5668 375 359 Century Telephone
6198 564 358 BellSouth Network Solutions,
27364 379 355 Armstrong Cable Services
22773 363 327 Cox Communications, Inc. Atla
9929 348 317 China Netcom Corp.
17676 341 308 XTAGE CORPORATION
6140 379 305 ImpSat
1239 937 303 Sprint
4755 351 302 Videsh Sanchar Nigam Ltd. Aut
6347 389 297 SAVVIS Communications Corpora
4355 391 290 EarthLink, Inc.
9443 354 276 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18416 UNALLOCATED 61.56.96.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.96.0/20 9919 New Century InfoComm
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
156.154.16.0/22 7786 Lockheed Martin IMS
158.0.0.0/13 568 DISO-UNRRA
164.234.0.0/18 721 DLA Systems Automation Center
164.234.0.0/16 721 DLA Systems Automation Center
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 /8:18 /9:3 /10:6 /11:15 /12:58
/13:112 /14:295 /15:508 /16:7740 /17:1999 /18:3554
/19:9335 /20:9726 /21:7030 /22:9991 /23:11428 /24:74616
/25:207 /26:252 /27:140 /28:30 /29:4 /30:51
/31:0 /32:15
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 683 700 Covad Communications
7018 546 1439 AT&T
6197 532 699 BellSouth Network Solutions,
3356 498 895 Level 3 Communications, LLC
6198 402 564 BellSouth Network Solutions,
702 400 662 UUNET - Commercial IP service
7066 397 504 Virginia Polytechnic Institut
27364 371 379 Armstrong Cable Services
701 366 1322 UUNET Technologies, Inc.
1239 356 937 Sprint
5668 328 375 Century Telephone
9583 314 474 Satyam Infoway Ltd.,
4766 299 479 Korea Internet Exchange for "
690 295 332 Merit Network
9929 277 348 China Netcom Corp.
20115 265 509 Charter Communications
14824 250 275 NewSouth Communications Corp.
3320 244 297 Deutsche Telekom AG
25844 244 244 Skadden, Arps, Slate, Meagher
13609 234 275 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:817 13:1 15:4 16:1 17:3
20:8 24:742 32:95 38:63 40:54 44:3
55:1 56:4 57:13 61:407 62:452 63:1839
64:1852 65:1954 66:2515 67:293 68:523 69:508
70:64 80:496 81:273 82:156 83:34 128:145
129:226 130:76 131:89 132:19 133:1 134:185
135:17 136:188 137:104 138:152 139:40 140:152
141:134 142:108 143:50 144:90 145:41 146:292
147:76 148:368 149:101 150:93 151:64 152:189
153:62 154:1 155:123 156:58 157:54 158:146
159:147 160:51 161:53 162:380 163:79 164:330
165:163 166:98 167:210 168:218 169:105 170:287
171:8 192:5528 193:2673 194:2030 195:1355 196:537
198:3641 199:3020 200:3278 201:8 202:4571 203:5511
204:2985 205:1970 206:2273 207:2482 208:2282 209:2857
210:1387 211:521 212:960 213:1152 214:36 215:28
216:3352 217:898 218:169 219:99 220:208 221:28
222:26
End of report
