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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 27 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 138344
Prefixes after maximum aggregation: 84308
Unique aggregates announced to Internet: 67459
Total ASes present in the Internet Routing Table: 17307
Origin-only ASes present in the Internet Routing Table: 15001
Origin ASes announcing only one prefix: 6976
Transit ASes present in the Internet Routing Table: 2306
Transit-only ASes present in the Internet Routing Table: 77
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: 11
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1290973436
Equivalent to 76 /8s, 242 /16s and 176 /24s
Percentage of available address space announced: 34.8
Percentage of allocated address space announced: 57.2
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 62008
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26401
Total APNIC prefixes after maximum aggregation: 13825
Prefixes being announced from the APNIC address blocks: 24703
Unique aggregates announced from the APNIC address blocks: 13892
APNIC Region origin ASes present in the Internet Routing Table: 2058
APNIC Region origin ASes announcing only one prefix: 611
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: 15
Number of APNIC addresses announced to Internet: 148386304
Equivalent to 8 /8s, 216 /16s and 50 /24s
Percentage of available APNIC address space announced: 67.7
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 79206
Total ARIN prefixes after maximum aggregation: 49378
Prefixes being announced from the ARIN address blocks: 61241
Unique aggregates announced from the ARIN address blocks: 21653
ARIN Region origin ASes present in the Internet Routing Table: 9217
ARIN Region origin ASes announcing only one prefix: 3283
ARIN Region transit ASes present in the Internet Routing Table: 912
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 224486432
Equivalent to 13 /8s, 97 /16s and 100 /24s
Percentage of available ARIN address space announced: 74.3
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: 25519
Total RIPE prefixes after maximum aggregation: 18192
Prefixes being announced from the RIPE address blocks: 22330
Unique aggregates announced from the RIPE address blocks: 14862
RIPE Region origin ASes present in the Internet Routing Table: 5487
RIPE Region origin ASes announcing only one prefix: 2954
RIPE Region transit ASes present in the Internet Routing Table: 939
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 162879232
Equivalent to 9 /8s, 181 /16s and 87 /24s
Percentage of available RIPE address space announced: 57.1
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, 80/5, 88/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6062
Total LACNIC prefixes after maximum aggregation: 2241
Prefixes being announced from the LACNIC address blocks: 5715
Unique aggregates announced from the LACNIC address blocks: 3487
LACNIC Region origin ASes present in the Internet Routing Table: 379
LACNIC Region origin ASes announcing only one prefix: 107
LACNIC Region transit ASes present in the Internet Routing Table: 75
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14954752
Equivalent to 0 /8s, 228 /16s and 49 /24s
Percentage of available LACNIC address space announced: 44.6
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1150
Total AfriNIC prefixes after maximum aggregation: 672
Prefixes being announced from the AfriNIC address blocks: 779
Unique aggregates announced from the AfriNIC address blocks: 586
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 21
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1864960
Equivalent to 0 /8s, 28 /16s and 117 /24s
Percentage of available AfriNIC address space announced: 11.1
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 848 1091 611 Telstra Pty Ltd
4134 762 3516 142 Data Communications Bureau
4766 487 2892 262 Korea Internet Exchange for "
9583 387 30 132 Satyam Infoway Ltd.,
4755 372 126 55 Videsh Sanchar Nigam Ltd. Aut
9443 354 69 78 Primus Telecommunications
2907 353 1841 330 SINET Japan
9929 347 156 33 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 330 375 257 UUNET
17557 327 23 167 Pakistan Telecom
2764 296 275 242 connect.com.au pty ltd
7474 266 268 208 Optus Communications Pty Ltd
9942 230 71 127 COMindico Australia
9800 225 367 62 CHINA UNICOM
9498 218 47 46 BHARTI BT INTERNET LTD.
4780 212 193 26 Digital United Inc.
4837 181 2003 108 chinanet IDC center beijing n
10036 180 16 168 C&M Communication Co. Ltd.
9304 170 161 25 Hutchison Telecom (HK)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1445 6892 1008 AT&T
701 1312 8545 940 UUNET Technologies, Inc.
1239 940 3016 642 Sprint
3356 891 10900 675 Level 3 Communications, LLC
209 741 3458 503 Qwest
4323 730 578 201 Time Warner Communications, I
6197 707 521 272 BellSouth Network Solutions,
18566 706 192 8 Covad Communications
6198 558 368 211 BellSouth Network Solutions,
20115 552 365 286 Charter Communications
852 512 1142 403 Telus Advanced Communications
7843 498 647 116 Adelphia Corp.
7132 447 7851 333 Southwestern Bell Internet Se
2386 428 584 232 AT&T Data Communications Serv
705 404 147 278 UUNET Technologies, Inc.
6347 400 387 89 SAVVIS Communications Corpora
4355 391 323 101 EarthLink, Inc.
22909 389 843 25 Comcast Cable Corporation
376 383 359 112 Reseau Interordinateurs Scien
5668 380 71 17 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 651 2038 546 UUNET - Commercial IP service
3320 297 2477 237 Deutsche Telekom AG
8220 274 429 262 COLT Internet - International
3301 272 1096 262 TeliaNet Sweden
680 244 2025 239 DFN-IP service G-WiN
1257 243 495 198 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 200 460 198 Song Networks
5515 198 779 143 Sonera Solution Autonomous Sy
719 180 288 102 LANLINK autonomous system
3215 176 831 68 France Telecom Transpac
8708 174 111 163 Romania Data Systems S.A.
25186 174 172 115 France Telecom Transpac's Tra
786 173 1794 173 The JANET IP Service
6746 154 29 127 Dynamic Network Technologies,
5400 145 209 123 BT Ignite European Backbone
3269 137 1101 65 TELECOM ITALIA
3303 132 611 132 Swisscom Ltd
12302 123 18 29 MobiFon S.A.
8866 115 13 6 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 359 80 55 Servicios Alestra S.A de C.V
6140 344 124 66 ImpSat
8151 267 373 128 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 160 82 21 Telefonica Del Peru
7303 143 53 32 Telecom Argentina Stet-France
6505 134 90 92 Global One Communicaoes Ltda
6503 130 219 89 AVANTEL, S.A.
11992 89 9 28 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 79 5 16 Chilesat Servicios Empresari
15311 75 19 37 Telefonica Empresas
5639 72 8 8 Telecommunications Services o
14420 72 5 31 ANDINATEL S.A.
4270 71 18 9 Red de Interconexion Universi
14535 70 6 5 Techtel S.A.
11311 69 7 19 Sinectis S.A.
14259 67 4 5 GTD Internet S.A.
10292 66 6 25 TELECOMMUNICATIONS OF JAMAICA
7080 64 4 1 Electronica y Comunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 254 632 219 The Internet Solution
5536 107 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 276 80 The Internetworking Company o
11845 37 9 11 Data Pro Business Online
24835 31 18 6 RAYA Telecom - Egypt
5713 26 125 24 Telkom SA Ltd
9129 25 3 4 UUNET Kenya
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
8524 24 2 4 AUCEGYPT Autonomous System
12455 24 4 2 Jambonet Autonomous system
14988 24 16 1 Botswana Telecommunications C
10798 18 1 12 Standard Bank of South Africa
15706 16 2 3 Sudatel Internet Exchange Aut
12258 15 3 10 Vodacom Internet Company
8346 13 6 12 SONATEL-AS Autonomous System
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
15808 12 1 4 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 706 698 Covad Communications
4134 762 620 Data Communications Bureau
4323 730 529 Time Warner Communications, I
6197 707 435 BellSouth Network Solutions,
7843 498 382 Adelphia Corp.
701 1312 372 UUNET Technologies, Inc.
22909 389 364 Comcast Cable Corporation
5668 380 363 Century Telephone
6198 558 347 BellSouth Network Solutions,
27364 360 341 Armstrong Cable Services
22773 374 328 Cox Communications, Inc. Atla
4755 372 317 Videsh Sanchar Nigam Ltd. Aut
9929 347 314 China Netcom Corp.
6347 400 311 SAVVIS Communications Corpora
17676 341 308 XTAGE CORPORATION
11172 359 304 Servicios Alestra S.A de C.V
1239 940 298 Sprint
4355 391 290 EarthLink, Inc.
6140 344 278 ImpSat
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
18416 UNALLOCATED 61.56.97.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.98.0/24 9919 New Century InfoComm
65501 PRIVATE 66.60.187.0/24 14051 Roseville Telephone
65501 PRIVATE 66.60.188.0/22 14051 Roseville Telephone
65001 PRIVATE 148.235.124.0/24 8151 UniNet S.A. de C.V.
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65001 PRIVATE 200.79.116.0/24 8151 UniNet S.A. de C.V.
65502 PRIVATE 203.97.150.0/24 7714 TelstraClear
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
192.70.164.0/24 25689 National Research Council of
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
192.172.11.0/24 721 DLA Systems Automation Center
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 /12:59
/13:122 /14:294 /15:512 /16:7750 /17:2018 /18:3599
/19:9385 /20:9853 /21:7198 /22:10216 /23:11528 /24:75059
/25:217 /26:254 /27:132 /28:31 /29:8 /30:55
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 689 706 Covad Communications
7018 554 1445 AT&T
6197 538 707 BellSouth Network Solutions,
3356 509 891 Level 3 Communications, LLC
702 396 651 UUNET - Commercial IP service
6198 395 558 BellSouth Network Solutions,
701 367 1312 UUNET Technologies, Inc.
1239 362 940 Sprint
27364 348 360 Armstrong Cable Services
5668 332 380 Century Telephone
4766 310 487 Korea Internet Exchange for "
20115 294 552 Charter Communications
9929 277 347 China Netcom Corp.
14824 251 276 NewSouth Communications Corp.
690 247 283 Merit Network
3320 246 297 Deutsche Telekom AG
25844 244 244 Skadden, Arps, Slate, Meagher
9583 238 387 Satyam Infoway Ltd.,
13609 235 276 Choice One Communications Inc
6517 229 255 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:816 13:1 15:5 16:2 17:3
20:8 24:725 32:101 38:69 40:54 44:3
55:1 56:4 57:15 61:379 62:482 63:1823
64:1837 65:1995 66:2503 67:314 68:518 69:530
70:64 80:497 81:291 82:168 83:63 128:146
129:186 130:82 131:131 132:18 133:1 134:180
135:17 136:186 137:92 138:152 139:42 140:157
141:126 142:117 143:54 144:86 145:42 146:301
147:76 148:403 149:118 150:93 151:66 152:165
153:62 154:1 155:120 156:61 157:58 158:145
159:145 160:54 161:56 162:379 163:75 164:159
165:161 166:99 167:218 168:226 169:105 170:286
171:8 192:5536 193:2719 194:2018 195:1367 196:555
198:3683 199:3057 200:3476 201:7 202:4587 203:5550
204:3046 205:2005 206:2247 207:2448 208:2248 209:2784
210:1364 211:551 212:970 213:1169 214:56 215:28
216:3369 217:920 218:171 219:109 220:226 221:28
222:36
End of report
