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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 25 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 138171
Prefixes after maximum aggregation: 84094
Unique aggregates announced to Internet: 67136
Total ASes present in the Internet Routing Table: 17275
Origin-only ASes present in the Internet Routing Table: 14981
Origin ASes announcing only one prefix: 6960
Transit ASes present in the Internet Routing Table: 2294
Transit-only ASes present in the Internet Routing Table: 78
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: 1289892348
Equivalent to 76 /8s, 226 /16s and 49 /24s
Percentage of available address space announced: 34.8
Percentage of allocated address space announced: 57.1
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 61925
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26362
Total APNIC prefixes after maximum aggregation: 13774
Prefixes being announced from the APNIC address blocks: 24668
Unique aggregates announced from the APNIC address blocks: 13763
APNIC Region origin ASes present in the Internet Routing Table: 2057
APNIC Region origin ASes announcing only one prefix: 613
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 147362048
Equivalent to 8 /8s, 200 /16s and 145 /24s
Percentage of available APNIC address space announced: 67.2
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: 79173
Total ARIN prefixes after maximum aggregation: 49294
Prefixes being announced from the ARIN address blocks: 61223
Unique aggregates announced from the ARIN address blocks: 21569
ARIN Region origin ASes present in the Internet Routing Table: 9202
ARIN Region origin ASes announcing only one prefix: 3283
ARIN Region transit ASes present in the Internet Routing Table: 913
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 224511264
Equivalent to 13 /8s, 97 /16s and 197 /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: 25430
Total RIPE prefixes after maximum aggregation: 18130
Prefixes being announced from the RIPE address blocks: 22258
Unique aggregates announced from the RIPE address blocks: 14804
RIPE Region origin ASes present in the Internet Routing Table: 5473
RIPE Region origin ASes announcing only one prefix: 2938
RIPE Region transit ASes present in the Internet Routing Table: 935
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 162592768
Equivalent to 9 /8s, 176 /16s and 248 /24s
Percentage of available RIPE address space announced: 57.0
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: 6051
Total LACNIC prefixes after maximum aggregation: 2221
Prefixes being announced from the LACNIC address blocks: 5687
Unique aggregates announced from the LACNIC address blocks: 3481
LACNIC Region origin ASes present in the Internet Routing Table: 376
LACNIC Region origin ASes announcing only one prefix: 105
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14925056
Equivalent to 0 /8s, 227 /16s and 189 /24s
Percentage of available LACNIC address space announced: 44.5
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: 675
Prefixes being announced from the AfriNIC address blocks: 770
Unique aggregates announced from the AfriNIC address blocks: 579
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: 1848320
Equivalent to 0 /8s, 28 /16s and 52 /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 850 1091 613 Telstra Pty Ltd
4134 769 3512 139 Data Communications Bureau
4766 487 2892 262 Korea Internet Exchange for "
9583 399 33 100 Satyam Infoway Ltd.,
4755 380 126 54 Videsh Sanchar Nigam Ltd. Aut
9443 354 69 78 Primus Telecommunications
2907 353 1841 330 SINET Japan
9929 346 156 33 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 330 375 257 UUNET
17557 327 23 167 Pakistan Telecom
2764 295 274 241 connect.com.au pty ltd
7474 265 268 208 Optus Communications Pty Ltd
9942 230 71 127 COMindico Australia
9800 223 367 65 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 194 47 46 BHARTI BT INTERNET LTD.
10036 179 16 167 C&M Communication Co. Ltd.
4837 177 1811 106 chinanet IDC center beijing n
9304 170 161 25 Hutchison Telecom (HK)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1449 6892 1009 AT&T
701 1311 8545 939 UUNET Technologies, Inc.
1239 937 3016 639 Sprint
3356 891 10900 675 Level 3 Communications, LLC
209 738 3458 500 Qwest
4323 726 560 198 Time Warner Communications, I
18566 704 192 8 Covad Communications
6197 703 520 269 BellSouth Network Solutions,
6198 558 368 211 BellSouth Network Solutions,
20115 552 362 292 Charter Communications
852 513 1142 404 Telus Advanced Communications
7843 493 645 113 Adelphia Corp.
7132 447 7851 333 Southwestern Bell Internet Se
2386 430 601 233 AT&T Data Communications Serv
705 402 147 276 UUNET Technologies, Inc.
6347 401 388 90 SAVVIS Communications Corpora
4355 391 323 101 EarthLink, Inc.
22909 389 843 25 Comcast Cable Corporation
376 384 359 112 Reseau Interordinateurs Scien
5668 380 71 17 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 650 2037 545 UUNET - Commercial IP service
3320 296 2477 236 Deutsche Telekom AG
8220 273 428 260 COLT Internet - International
3301 272 1096 262 TeliaNet Sweden
680 244 2025 239 DFN-IP service G-WiN
1257 240 493 196 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 203 461 200 Song Networks
5515 198 779 143 Sonera Solution Autonomous Sy
3215 176 833 69 France Telecom Transpac
8708 174 111 163 Romania Data Systems S.A.
786 173 1794 173 The JANET IP Service
25186 166 171 107 France Telecom Transpac's Tra
6746 152 29 126 Dynamic Network Technologies,
5400 150 225 128 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
1273 113 166 89 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 387 124 66 ImpSat
11172 360 96 56 Servicios Alestra S.A de C.V
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 68 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 89 272 79 The Internetworking Company o
11845 37 9 11 Data Pro Business Online
24835 31 18 6 RAYA Telecom - Egypt
9129 27 3 4 UUNET Kenya
5713 26 125 24 Telkom SA Ltd
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
8524 23 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
8346 14 22 13 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 704 696 Covad Communications
4134 769 630 Data Communications Bureau
4323 726 528 Time Warner Communications, I
6197 703 434 BellSouth Network Solutions,
7843 493 380 Adelphia Corp.
701 1311 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 372 328 Cox Communications, Inc. Atla
4755 380 326 Videsh Sanchar Nigam Ltd. Aut
6140 387 321 ImpSat
9929 346 313 China Netcom Corp.
6347 401 311 SAVVIS Communications Corpora
17676 341 308 XTAGE CORPORATION
11172 360 304 Servicios Alestra S.A de C.V
9583 399 299 Satyam Infoway Ltd.,
1239 937 298 Sprint
4355 391 290 EarthLink, Inc.
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
/13:121 /14:293 /15:511 /16:7751 /17:2022 /18:3593
/19:9390 /20:9846 /21:7178 /22:10178 /23:11505 /24:75023
/25:197 /26:234 /27:123 /28:31 /29:8 /30:54
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 687 704 Covad Communications
7018 553 1449 AT&T
6197 534 703 BellSouth Network Solutions,
3356 506 891 Level 3 Communications, LLC
702 395 650 UUNET - Commercial IP service
6198 395 558 BellSouth Network Solutions,
701 365 1311 UUNET Technologies, Inc.
1239 361 937 Sprint
27364 348 360 Armstrong Cable Services
5668 332 380 Century Telephone
4766 310 487 Korea Internet Exchange for "
20115 295 552 Charter Communications
9929 276 346 China Netcom Corp.
9583 252 399 Satyam Infoway Ltd.,
14824 251 276 NewSouth Communications Corp.
690 247 283 Merit Network
3320 245 296 Deutsche Telekom AG
25844 244 244 Skadden, Arps, Slate, Meagher
13609 235 276 Choice One Communications Inc
6517 231 257 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:817 13:1 15:5 16:1 17:3
20:8 24:720 32:101 38:69 40:54 44:3
55:1 56:4 57:15 61:378 62:489 63:1827
64:1834 65:1990 66:2501 67:312 68:513 69:556
70:64 80:503 81:298 82:174 83:59 128:147
129:195 130:82 131:131 132:18 133:1 134:179
135:17 136:186 137:92 138:156 139:41 140:156
141:126 142:117 143:54 144:87 145:42 146:301
147:76 148:403 149:116 150:93 151:66 152:165
153:62 154:1 155:120 156:61 157:58 158:144
159:145 160:53 161:54 162:379 163:75 164:159
165:160 166:99 167:219 168:226 169:105 170:285
171:8 192:5534 193:2701 194:2018 195:1363 196:548
198:3682 199:3062 200:3460 201:7 202:4560 203:5544
204:3040 205:2005 206:2254 207:2444 208:2242 209:2791
210:1375 211:550 212:970 213:1157 214:56 215:28
216:3380 217:921 218:170 219:110 220:225 221:28
222:35
End of report
