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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 16 Jun, 2004
Analysis Summary
----------------
BGP routing table entries examined: 140560
Prefixes after maximum aggregation: 85092
Unique aggregates announced to Internet: 68165
Total ASes present in the Internet Routing Table: 17425
Origin-only ASes present in the Internet Routing Table: 15124
Origin ASes announcing only one prefix: 7042
Transit ASes present in the Internet Routing Table: 2301
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1312005372
Equivalent to 78 /8s, 51 /16s and 156 /24s
Percentage of available address space announced: 35.4
Percentage of allocated address space announced: 58.1
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 64140
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26859
Total APNIC prefixes after maximum aggregation: 13948
Prefixes being announced from the APNIC address blocks: 25084
Unique aggregates announced from the APNIC address blocks: 14018
APNIC Region origin ASes present in the Internet Routing Table: 2063
APNIC Region origin ASes announcing only one prefix: 613
APNIC Region transit ASes present in the Internet Routing Table: 335
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 149993472
Equivalent to 8 /8s, 240 /16s and 184 /24s
Percentage of available APNIC address space announced: 68.4
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: 80560
Total ARIN prefixes after maximum aggregation: 49839
Prefixes being announced from the ARIN address blocks: 62478
Unique aggregates announced from the ARIN address blocks: 21962
ARIN Region origin ASes present in the Internet Routing Table: 9251
ARIN Region origin ASes announcing only one prefix: 3299
ARIN Region transit ASes present in the Internet Routing Table: 902
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 225341472
Equivalent to 13 /8s, 110 /16s and 112 /24s
Percentage of available ARIN address space announced: 74.6
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 - 33791
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: 25835
Total RIPE prefixes after maximum aggregation: 18367
Prefixes being announced from the RIPE address blocks: 22631
Unique aggregates announced from the RIPE address blocks: 15083
RIPE Region origin ASes present in the Internet Routing Table: 5566
RIPE Region origin ASes announcing only one prefix: 2999
RIPE Region transit ASes present in the Internet Routing Table: 951
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 164189440
Equivalent to 9 /8s, 201 /16s and 85 /24s
Percentage of available RIPE address space announced: 57.6
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, 80/5, 88/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6158
Total LACNIC prefixes after maximum aggregation: 2259
Prefixes being announced from the LACNIC address blocks: 5779
Unique aggregates announced from the LACNIC address blocks: 3547
LACNIC Region origin ASes present in the Internet Routing Table: 381
LACNIC Region origin ASes announcing only one prefix: 109
LACNIC Region transit ASes present in the Internet Routing Table: 73
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 15067392
Equivalent to 0 /8s, 229 /16s and 233 /24s
Percentage of available LACNIC address space announced: 44.9
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1145
Total AfriNIC prefixes after maximum aggregation: 679
Prefixes being announced from the AfriNIC address blocks: 780
Unique aggregates announced from the AfriNIC address blocks: 586
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: 12
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1865472
Equivalent to 0 /8s, 28 /16s and 119 /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 844 1075 612 Telstra Pty Ltd
4134 789 3662 145 Data Communications Bureau
4766 491 2896 264 Korea Internet Exchange for "
9583 453 37 119 Satyam Infoway Ltd.,
4755 365 133 53 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 350 1840 327 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
17557 334 23 166 Pakistan Telecom
703 329 375 256 UUNET
9929 321 156 33 China Netcom Corp.
2764 294 274 241 connect.com.au pty ltd
7474 263 267 206 Optus Communications Pty Ltd
9942 229 71 126 COMindico Australia
9800 224 367 62 CHINA UNICOM
9498 216 47 46 BHARTI BT INTERNET LTD.
4837 184 2019 105 chinanet IDC center beijing n
17974 184 51 99 PT TELEKOMUNIKASI INDONESIA
10036 181 17 169 C&M Communication Co. Ltd.
4780 168 193 26 Digital United Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1442 6891 1001 AT&T
701 1304 8493 929 UUNET Technologies, Inc.
1239 945 2998 638 Sprint
6347 937 400 99 SAVVIS Communications Corpora
3356 890 10916 675 Level 3 Communications, LLC
4323 740 549 205 Time Warner Communications, I
18566 710 192 8 Covad Communications
6197 705 499 287 BellSouth Network Solutions,
209 613 3452 503 Qwest
6198 573 440 220 BellSouth Network Solutions,
20115 560 372 286 Charter Communications
852 514 1142 403 Telus Advanced Communications
7843 508 655 129 Adelphia Corp.
7132 452 7868 338 Southwestern Bell Internet Se
2386 428 581 230 AT&T Data Communications Serv
705 393 144 268 UUNET Technologies, Inc.
4355 393 323 103 EarthLink, Inc.
22909 390 843 25 Comcast Cable Corporation
376 385 359 112 Reseau Interordinateurs Scien
5668 383 71 17 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 646 2039 539 UUNET - Commercial IP service
3320 297 2462 237 Deutsche Telekom AG
3301 288 1097 265 TeliaNet Sweden
8220 274 429 262 COLT Internet - International
1257 250 498 195 SWIPnet Swedish IP Network
680 244 2025 239 DFN-IP service G-WiN
13083 216 51 8 Mannesmann Datenverarbeitung
3246 211 492 208 Song Networks
5515 199 843 144 Sonera Solution Autonomous Sy
8708 184 112 172 Romania Data Systems S.A.
719 179 288 102 LANLINK autonomous system
3215 178 895 69 France Telecom Transpac
25186 175 156 116 France Telecom Transpac's Tra
786 174 1794 174 The JANET IP Service
6746 158 29 127 Dynamic Network Technologies,
5400 144 206 119 BT Ignite European Backbone
3269 134 1099 64 TELECOM ITALIA
3303 132 611 132 Swisscom Ltd
12302 125 18 31 MobiFon S.A.
8866 121 14 8 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 356 96 57 Servicios Alestra S.A de C.V
6140 345 140 67 ImpSat
8151 275 373 130 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 161 82 21 Telefonica Del Peru
7303 145 53 32 Telecom Argentina Stet-France
6505 135 90 93 Global One Communicaoes Ltda
6503 130 218 88 AVANTEL, S.A.
11992 93 9 29 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
14420 85 5 32 ANDINATEL S.A.
6535 80 5 17 Chilesat Servicios Empresari
14535 75 6 5 Techtel S.A.
15311 75 19 37 Telefonica Empresas
11311 73 7 20 Sinectis S.A.
5639 72 8 8 Telecommunications Services o
4270 71 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
14259 67 4 5 GTD Internet S.A.
10292 66 6 25 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 253 632 220 The Internet Solution
5536 111 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 89 276 79 The Internetworking Company o
11845 38 9 11 Data Pro Business Online
24835 35 26 8 RAYA Telecom - Egypt
9129 27 3 4 UUNET Kenya
5713 26 125 24 Telkom SA Ltd
8524 25 2 4 AUCEGYPT Autonomous System
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
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
6347 937 838 SAVVIS Communications Corpora
18566 710 702 Covad Communications
4134 789 644 Data Communications Bureau
4323 740 535 Time Warner Communications, I
6197 705 418 BellSouth Network Solutions,
7843 508 379 Adelphia Corp.
701 1304 375 UUNET Technologies, Inc.
5668 383 366 Century Telephone
22909 390 365 Comcast Cable Corporation
27364 376 357 Armstrong Cable Services
6198 573 353 BellSouth Network Solutions,
9583 453 334 Satyam Infoway Ltd.,
4755 365 312 Videsh Sanchar Nigam Ltd. Aut
22773 369 311 Cox Communications, Inc. Atla
17676 341 308 XTAGE CORPORATION
1239 945 307 Sprint
11172 356 299 Servicios Alestra S.A de C.V
4355 393 290 EarthLink, Inc.
9929 321 288 China Netcom Corp.
6140 345 278 ImpSat
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
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
192.70.164.0/24 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 /8:19 /9:3 /10:6 /11:15 /12:59
/13:124 /14:299 /15:518 /16:7857 /17:2055 /18:3619
/19:9415 /20:9919 /21:7261 /22:10311 /23:11765 /24:76566
/25:226 /26:250 /27:144 /28:31 /29:15 /30:69
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 714 937 SAVVIS Communications Corpora
18566 693 710 Covad Communications
7018 558 1442 AT&T
6197 536 705 BellSouth Network Solutions,
3356 503 890 Level 3 Communications, LLC
6198 402 573 BellSouth Network Solutions,
702 398 646 UUNET - Commercial IP service
1239 376 945 Sprint
701 373 1304 UUNET Technologies, Inc.
27364 364 376 Armstrong Cable Services
5668 335 383 Century Telephone
4766 312 491 Korea Internet Exchange for "
9583 301 453 Satyam Infoway Ltd.,
20115 296 560 Charter Communications
9929 255 321 China Netcom Corp.
14824 255 280 NewSouth Communications Corp.
3320 247 297 Deutsche Telekom AG
690 246 282 Merit Network
25844 244 244 Skadden, Arps, Slate, Meagher
13609 237 278 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:827 13:1 15:5 16:2 17:3
20:9 24:751 32:65 33:1 38:70 40:53
44:4 55:1 56:3 57:15 61:423 62:501
63:1816 64:1974 65:2007 66:2608 67:329 68:497
69:564 70:64 80:499 81:314 82:178 83:72
84:2 128:146 129:186 130:77 131:177 132:21
133:1 134:182 135:17 136:178 137:55 138:146
139:34 140:164 141:125 142:116 143:53 144:90
145:41 146:303 147:78 148:417 149:117 150:94
151:71 152:165 153:64 154:1 155:117 156:61
157:60 158:145 159:147 160:52 161:62 162:379
163:77 164:179 165:156 166:93 167:216 168:225
169:106 170:284 171:8 192:5546 193:2759 194:2037
195:1379 196:558 198:3691 199:3083 200:3534 201:8
202:4643 203:5627 204:3100 205:2078 206:2287 207:2493
208:2224 209:2929 210:1413 211:558 212:979 213:1196
214:62 215:30 216:3702 217:932 218:166 219:110
220:228 221:29 222:38
End of report
