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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 09 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 137645
Prefixes after maximum aggregation: 83483
Unique aggregates announced to Internet: 66568
Total ASes present in the Internet Routing Table: 17180
Origin-only ASes present in the Internet Routing Table: 14905
Origin ASes announcing only one prefix: 6915
Transit ASes present in the Internet Routing Table: 2275
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: 9
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1302105784
Equivalent to 77 /8s, 156 /16s and 142 /24s
Percentage of available address space announced: 35.1
Percentage of allocated address space announced: 57.6
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 100473
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26194
Total APNIC prefixes after maximum aggregation: 13629
Prefixes being announced from the APNIC address blocks: 24512
Unique aggregates announced from the APNIC address blocks: 13716
APNIC Region origin ASes present in the Internet Routing Table: 2048
APNIC Region origin ASes announcing only one prefix: 610
APNIC Region transit ASes present in the Internet Routing Table: 323
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 146412032
Equivalent to 8 /8s, 186 /16s and 18 /24s
Percentage of available APNIC address space announced: 66.8
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: 79170
Total ARIN prefixes after maximum aggregation: 48918
Prefixes being announced from the ARIN address blocks: 61171
Unique aggregates announced from the ARIN address blocks: 21311
ARIN Region origin ASes present in the Internet Routing Table: 9155
ARIN Region origin ASes announcing only one prefix: 3263
ARIN Region transit ASes present in the Internet Routing Table: 898
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 222911776
Equivalent to 13 /8s, 73 /16s and 93 /24s
Percentage of available ARIN address space announced: 73.8
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: 25320
Total RIPE prefixes after maximum aggregation: 18041
Prefixes being announced from the RIPE address blocks: 22125
Unique aggregates announced from the RIPE address blocks: 14608
RIPE Region origin ASes present in the Internet Routing Table: 5432
RIPE Region origin ASes announcing only one prefix: 2915
RIPE Region transit ASes present in the Internet Routing Table: 937
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 160337920
Equivalent to 9 /8s, 142 /16s and 144 /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: 5813
Total LACNIC prefixes after maximum aggregation: 2218
Prefixes being announced from the LACNIC address blocks: 5468
Unique aggregates announced from the LACNIC address blocks: 3429
LACNIC Region origin ASes present in the Internet Routing Table: 374
LACNIC Region origin ASes announcing only one prefix: 104
LACNIC Region transit ASes present in the Internet Routing Table: 73
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14764288
Equivalent to 0 /8s, 225 /16s and 73 /24s
Percentage of available LACNIC address space announced: 44.0
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1147
Total AfriNIC prefixes after maximum aggregation: 677
Prefixes being announced from the AfriNIC address blocks: 762
Unique aggregates announced from the AfriNIC address blocks: 575
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 23
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: 15
Number of AfriNIC addresses announced to Internet: 1847296
Equivalent to 0 /8s, 28 /16s and 48 /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 852 1091 618 Telstra Pty Ltd
4134 768 3482 139 Data Communications Bureau
4766 483 2901 259 Korea Internet Exchange for "
9583 463 40 81 Satyam Infoway Ltd.,
4755 354 125 49 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 351 1840 328 SINET Japan
9929 342 155 31 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 332 375 259 UUNET
17557 325 23 165 Pakistan Telecom
2764 292 274 240 connect.com.au pty ltd
7474 271 268 210 Optus Communications Pty Ltd
9942 222 71 126 COMindico Australia
9800 218 364 58 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 190 31 45 BHARTI BT INTERNET LTD.
4837 182 1683 105 chinanet IDC center beijing n
9304 171 161 25 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 1455 6927 1011 AT&T
701 1316 8538 942 UUNET Technologies, Inc.
1239 930 3000 630 Sprint
3356 893 10951 684 Level 3 Communications, LLC
209 738 3469 501 Qwest
4323 719 561 200 Time Warner Communications, I
18566 701 192 8 Covad Communications
6197 698 517 265 BellSouth Network Solutions,
6198 568 372 210 BellSouth Network Solutions,
20115 519 827 265 Charter Communications
852 513 1142 404 Telus Advanced Communications
7066 505 208 274 Virginia Polytechnic Institut
7843 500 643 112 Adelphia Corp.
7132 451 7864 334 Southwestern Bell Internet Se
2386 426 593 232 AT&T Data Communications Serv
6347 401 388 94 SAVVIS Communications Corpora
705 399 145 274 UUNET Technologies, Inc.
4355 391 323 101 EarthLink, Inc.
22909 390 844 26 Comcast Cable Corporation
376 380 343 112 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 653 2038 548 UUNET - Commercial IP service
3320 297 2477 237 Deutsche Telekom AG
3301 270 968 260 TeliaNet Sweden
8220 266 412 254 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 243 511 196 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
5515 201 779 143 Sonera Solution Autonomous Sy
3246 199 450 196 Song Networks
719 197 288 103 LANLINK autonomous system
3215 177 837 70 France Telecom Transpac
25186 176 188 117 France Telecom Transpac's Tra
786 175 1826 175 The JANET IP Service
8708 174 111 163 Romania Data Systems S.A.
5400 154 238 135 BT Ignite European Backbone
6746 138 28 114 Dynamic Network Technologies,
3269 134 1101 65 TELECOM ITALIA
3303 130 606 130 Swisscom Ltd
12302 122 18 29 MobiFon S.A.
1273 112 166 88 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 382 122 69 ImpSat
8151 267 373 129 UniNet S.A. de C.V.
11172 215 79 50 Servicios Alestra S.A de C.V
16814 171 11 6 NSS, S.A.
6147 156 82 21 Telefonica Del Peru
7303 142 53 29 Telecom Argentina Stet-France
6505 132 90 91 Global One Communicaoes Ltda
6503 130 219 89 AVANTEL, S.A.
11556 88 73 25 Cable-Wireless Panama
11992 88 9 28 Integrated Systems
6535 80 5 20 Chilesat Servicios Empresari
15311 74 18 37 Telefonica Empresas
14535 71 6 5 Techtel S.A.
4270 70 18 9 Red de Interconexion Universi
11311 69 7 19 Sinectis S.A.
14259 69 4 5 GTD Internet S.A.
14420 69 4 28 ANDINATEL S.A.
7080 64 4 1 Electronica y Comunicaciones
10292 64 6 25 TELECOMMUNICATIONS OF JAMAICA
5639 62 8 8 Telecommunications Services o
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
24835 31 18 6 RAYA Telecom - Egypt
9129 29 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 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
8346 13 6 12 SONATEL-AS Autonomous System
15808 13 1 5 Communication Solutions Ltd i
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 701 693 Covad Communications
4134 768 629 Data Communications Bureau
4323 719 519 Time Warner Communications, I
6197 698 433 BellSouth Network Solutions,
7843 500 388 Adelphia Corp.
9583 463 382 Satyam Infoway Ltd.,
701 1316 374 UUNET Technologies, Inc.
22909 390 364 Comcast Cable Corporation
5668 379 363 Century Telephone
6198 568 358 BellSouth Network Solutions,
27364 364 345 Armstrong Cable Services
22773 369 329 Cox Communications, Inc. Atla
6140 382 313 ImpSat
9929 342 311 China Netcom Corp.
17676 341 308 XTAGE CORPORATION
6347 401 307 SAVVIS Communications Corpora
4755 354 305 Videsh Sanchar Nigam Ltd. Aut
1239 930 300 Sprint
4355 391 290 EarthLink, Inc.
9443 353 275 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
30306 UNALLOCATED 212.85.220.0/24 21242 Menasat - GDBC ,Glob
30306 UNALLOCATED 212.85.220.0/22 21242 Menasat - GDBC ,Glob
30306 UNALLOCATED 212.85.221.0/24 21242 Menasat - GDBC ,Glob
30306 UNALLOCATED 212.85.222.0/24 21242 Menasat - GDBC ,Glob
30306 UNALLOCATED 212.85.223.0/24 21242 Menasat - GDBC ,Glob
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 /8:19 /9:3 /10:6 /11:16 /12:58
/13:114 /14:294 /15:507 /16:7743 /17:1998 /18:3565
/19:9361 /20:9814 /21:7081 /22:10122 /23:11456 /24:74782
/25:209 /26:257 /27:141 /28:29 /29:5 /30:53
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7018 1091 1455 AT&T
701 991 1316 UUNET Technologies, Inc.
1221 758 852 Telstra Pty Ltd
18566 684 701 Covad Communications
1239 664 930 Sprint
3356 650 893 Level 3 Communications, LLC
6197 586 698 BellSouth Network Solutions,
4323 505 719 Time Warner Communications, I
209 489 738 Qwest
7066 477 505 Virginia Polytechnic Institut
6198 458 568 BellSouth Network Solutions,
9583 450 463 Satyam Infoway Ltd.,
702 433 653 UUNET - Commercial IP service
4766 396 483 Korea Internet Exchange for "
5668 360 379 Century Telephone
6140 357 382 ImpSat
705 353 399 UUNET Technologies, Inc.
852 352 513 Telus Advanced Communications
27364 352 364 Armstrong Cable Services
2386 347 426 AT&T Data Communications Serv
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:816 13:1 15:4 16:1 17:3
20:8 24:721 32:96 38:66 40:54 44:3
55:1 56:4 57:13 61:407 62:491 63:1843
64:1869 65:1989 66:2509 67:309 68:512 69:530
70:64 80:505 81:283 82:167 83:57 128:147
129:205 130:77 131:89 132:18 133:1 134:184
135:17 136:186 137:104 138:148 139:39 140:154
141:134 142:113 143:52 144:91 145:41 146:294
147:77 148:367 149:113 150:93 151:64 152:184
153:62 154:1 155:123 156:57 157:54 158:144
159:147 160:48 161:53 162:380 163:75 164:333
165:160 166:99 167:218 168:220 169:105 170:284
171:8 192:5533 193:2695 194:2028 195:1368 196:540
198:3647 199:3017 200:3258 201:8 202:4548 203:5525
204:2999 205:1973 206:2265 207:2496 208:2282 209:2834
210:1381 211:518 212:952 213:1140 214:37 215:28
216:3382 217:908 218:165 219:99 220:209 221:28
222:27
End of report
