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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 19 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 137916
Prefixes after maximum aggregation: 83781
Unique aggregates announced to Internet: 66076
Total ASes present in the Internet Routing Table: 17241
Origin-only ASes present in the Internet Routing Table: 14953
Origin ASes announcing only one prefix: 6954
Transit ASes present in the Internet Routing Table: 2288
Transit-only ASes present in the Internet Routing Table: 75
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: 18
Number of addresses announced to Internet: 1289612284
Equivalent to 76 /8s, 221 /16s and 235 /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: 61879
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26271
Total APNIC prefixes after maximum aggregation: 13583
Prefixes being announced from the APNIC address blocks: 24577
Unique aggregates announced from the APNIC address blocks: 13548
APNIC Region origin ASes present in the Internet Routing Table: 2054
APNIC Region origin ASes announcing only one prefix: 612
APNIC Region transit ASes present in the Internet Routing Table: 331
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 146972928
Equivalent to 8 /8s, 194 /16s and 161 /24s
Percentage of available APNIC address space announced: 67.1
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: 79140
Total ARIN prefixes after maximum aggregation: 49186
Prefixes being announced from the ARIN address blocks: 61064
Unique aggregates announced from the ARIN address blocks: 20825
ARIN Region origin ASes present in the Internet Routing Table: 9180
ARIN Region origin ASes announcing only one prefix: 3269
ARIN Region transit ASes present in the Internet Routing Table: 907
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 224745760
Equivalent to 13 /8s, 101 /16s and 89 /24s
Percentage of available ARIN address space announced: 74.4
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: 25444
Total RIPE prefixes after maximum aggregation: 18110
Prefixes being announced from the RIPE address blocks: 22262
Unique aggregates announced from the RIPE address blocks: 14702
RIPE Region origin ASes present in the Internet Routing Table: 5463
RIPE Region origin ASes announcing only one prefix: 2944
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: 162231552
Equivalent to 9 /8s, 171 /16s and 117 /24s
Percentage of available RIPE address space announced: 56.9
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: 5910
Total LACNIC prefixes after maximum aggregation: 2224
Prefixes being announced from the LACNIC address blocks: 5568
Unique aggregates announced from the LACNIC address blocks: 3492
LACNIC Region origin ASes present in the Internet Routing Table: 377
LACNIC Region origin ASes announcing only one prefix: 106
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14918656
Equivalent to 0 /8s, 227 /16s and 164 /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: 1148
Total AfriNIC prefixes after maximum aggregation: 678
Prefixes being announced from the AfriNIC address blocks: 772
Unique aggregates announced from the AfriNIC address blocks: 574
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: 16
Number of AfriNIC addresses announced to Internet: 1854976
Equivalent to 0 /8s, 28 /16s and 78 /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 853 1091 615 Telstra Pty Ltd
4134 769 3514 140 Data Communications Bureau
4766 488 2903 262 Korea Internet Exchange for "
9583 473 43 33 Satyam Infoway Ltd.,
2907 351 1840 328 SINET Japan
9443 351 69 78 Primus Telecommunications
4755 350 125 51 Videsh Sanchar Nigam Ltd. Aut
9929 344 156 33 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 330 375 257 UUNET
17557 327 23 167 Pakistan Telecom
2764 298 275 243 connect.com.au pty ltd
7474 267 268 210 Optus Communications Pty Ltd
9942 228 71 125 COMindico Australia
9800 221 367 60 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 194 47 46 BHARTI BT INTERNET LTD.
17974 179 51 98 PT TELEKOMUNIKASI INDONESIA
4837 176 1683 105 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 1440 6889 1003 AT&T
701 1321 8544 947 UUNET Technologies, Inc.
1239 937 3016 641 Sprint
3356 887 10932 679 Level 3 Communications, LLC
209 734 3460 501 Qwest
4323 724 561 200 Time Warner Communications, I
18566 704 192 8 Covad Communications
6197 701 519 267 BellSouth Network Solutions,
6198 565 373 206 BellSouth Network Solutions,
20115 535 365 288 Charter Communications
852 512 1142 403 Telus Advanced Communications
7066 504 208 274 Virginia Polytechnic Institut
7843 497 644 117 Adelphia Corp.
7132 451 7868 335 Southwestern Bell Internet Se
2386 428 601 231 AT&T Data Communications Serv
6347 401 388 90 SAVVIS Communications Corpora
705 398 145 273 UUNET Technologies, Inc.
4355 391 323 101 EarthLink, Inc.
22909 386 840 29 Comcast Cable Corporation
376 381 343 112 Reseau Interordinateurs Scien
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
3301 272 1096 262 TeliaNet Sweden
8220 272 428 259 COLT Internet - International
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 202 795 144 Sonera Solution Autonomous Sy
719 195 288 102 LANLINK autonomous system
3215 176 833 69 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
5400 150 225 128 BT Ignite European Backbone
6746 139 28 115 Dynamic Network Technologies,
3269 137 1101 65 TELECOM ITALIA
3303 132 611 132 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 386 124 65 ImpSat
8151 270 373 129 UniNet S.A. de C.V.
11172 216 80 51 Servicios Alestra 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 133 90 91 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 78 5 20 Chilesat Servicios Empresari
15311 75 19 37 Telefonica Empresas
5639 72 8 8 Telecommunications Services o
4270 71 18 9 Red de Interconexion Universi
14420 71 5 30 ANDINATEL S.A.
14535 71 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 106 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
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 704 696 Covad Communications
4134 769 629 Data Communications Bureau
4323 724 524 Time Warner Communications, I
9583 473 440 Satyam Infoway Ltd.,
6197 701 434 BellSouth Network Solutions,
7843 497 380 Adelphia Corp.
701 1321 374 UUNET Technologies, Inc.
5668 377 360 Century Telephone
6198 565 359 BellSouth Network Solutions,
22909 386 357 Comcast Cable Corporation
27364 359 340 Armstrong Cable Services
22773 371 329 Cox Communications, Inc. Atla
6140 386 321 ImpSat
6347 401 311 SAVVIS Communications Corpora
9929 344 311 China Netcom Corp.
17676 341 308 XTAGE CORPORATION
4755 350 299 Videsh Sanchar Nigam Ltd. Aut
1239 937 296 Sprint
4355 391 290 EarthLink, Inc.
9443 351 273 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
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.
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 5713 Telkom SA Ltd
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
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
/13:120 /14:293 /15:508 /16:7756 /17:2015 /18:3586
/19:9373 /20:9860 /21:7150 /22:10132 /23:11490 /24:74811
/25:216 /26:261 /27:141 /28:30 /29:6 /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 549 1440 AT&T
6197 532 701 BellSouth Network Solutions,
3356 498 887 Level 3 Communications, LLC
6198 401 565 BellSouth Network Solutions,
7066 398 504 Virginia Polytechnic Institut
702 395 650 UUNET - Commercial IP service
701 367 1321 UUNET Technologies, Inc.
1239 361 937 Sprint
27364 347 359 Armstrong Cable Services
5668 330 377 Century Telephone
4766 311 488 Korea Internet Exchange for "
9583 309 473 Satyam Infoway Ltd.,
20115 275 535 Charter Communications
9929 274 344 China Netcom Corp.
14824 250 275 NewSouth Communications Corp.
690 247 283 Merit Network
3320 245 296 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 12:818 13:1 15:5 16:1 17:3
20:7 24:707 32:96 38:67 40:54 44:3
55:1 56:4 57:14 61:405 62:497 63:1847
64:1828 65:1982 66:2474 67:311 68:517 69:546
70:64 80:498 81:293 82:175 83:56 128:148
129:199 130:82 131:131 132:18 133:1 134:179
135:17 136:187 137:104 138:158 139:38 140:157
141:126 142:116 143:54 144:90 145:42 146:293
147:76 148:364 149:114 150:93 151:65 152:165
153:62 154:1 155:120 156:58 157:53 158:145
159:147 160:54 161:54 162:381 163:75 164:330
165:160 166:99 167:218 168:223 169:105 170:286
171:8 192:5533 193:2698 194:2039 195:1365 196:549
198:3670 199:3059 200:3340 201:8 202:4556 203:5524
204:3038 205:1993 206:2245 207:2450 208:2240 209:2797
210:1376 211:452 212:959 213:1147 214:43 215:28
216:3382 217:898 218:171 219:102 220:212 221:28
222:36
End of report
