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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 07 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 137574
Prefixes after maximum aggregation: 83482
Unique aggregates announced to Internet: 66488
Total ASes present in the Internet Routing Table: 17180
Origin-only ASes present in the Internet Routing Table: 14906
Origin ASes announcing only one prefix: 6909
Transit ASes present in the Internet Routing Table: 2274
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: 10
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1284711352
Equivalent to 76 /8s, 147 /16s and 35 /24s
Percentage of available address space announced: 34.7
Percentage of allocated address space announced: 56.9
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 100415
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26198
Total APNIC prefixes after maximum aggregation: 13639
Prefixes being announced from the APNIC address blocks: 24515
Unique aggregates announced from the APNIC address blocks: 13693
APNIC Region origin ASes present in the Internet Routing Table: 2051
APNIC Region origin ASes announcing only one prefix: 612
APNIC Region transit ASes present in the Internet Routing Table: 322
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 145838592
Equivalent to 8 /8s, 177 /16s and 82 /24s
Percentage of available APNIC address space announced: 66.5
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: 79099
Total ARIN prefixes after maximum aggregation: 48913
Prefixes being announced from the ARIN address blocks: 61090
Unique aggregates announced from the ARIN address blocks: 21281
ARIN Region origin ASes present in the Internet Routing Table: 9157
ARIN Region origin ASes announcing only one prefix: 3258
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: 222841120
Equivalent to 13 /8s, 72 /16s and 73 /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: 25274
Total RIPE prefixes after maximum aggregation: 18035
Prefixes being announced from the RIPE address blocks: 22086
Unique aggregates announced from the RIPE address blocks: 14584
RIPE Region origin ASes present in the Internet Routing Table: 5427
RIPE Region origin ASes announcing only one prefix: 2913
RIPE Region transit ASes present in the Internet Routing Table: 941
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 160316928
Equivalent to 9 /8s, 142 /16s and 62 /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: 5851
Total LACNIC prefixes after maximum aggregation: 2220
Prefixes being announced from the LACNIC address blocks: 5499
Unique aggregates announced from the LACNIC address blocks: 3430
LACNIC Region origin ASes present in the Internet Routing Table: 375
LACNIC Region origin ASes announcing only one prefix: 103
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14760192
Equivalent to 0 /8s, 225 /16s and 57 /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: 1150
Total AfriNIC prefixes after maximum aggregation: 675
Prefixes being announced from the AfriNIC address blocks: 763
Unique aggregates announced from the AfriNIC address blocks: 568
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: 1849344
Equivalent to 0 /8s, 28 /16s and 56 /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 853 1091 619 Telstra Pty Ltd
4134 768 3480 138 Data Communications Bureau
4766 482 2901 259 Korea Internet Exchange for "
9583 467 40 81 Satyam Infoway Ltd.,
2907 354 1840 328 SINET Japan
9443 354 69 78 Primus Telecommunications
4755 352 125 49 Videsh Sanchar Nigam Ltd. Aut
9929 344 155 31 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 332 375 259 UUNET
17557 325 23 165 Pakistan Telecom
2764 293 274 242 connect.com.au pty ltd
7474 271 284 211 Optus Communications Pty Ltd
9942 223 71 126 COMindico Australia
9800 219 364 59 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 192 31 44 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 1458 6943 1014 AT&T
701 1318 8538 944 UUNET Technologies, Inc.
1239 929 3015 630 Sprint
3356 893 10951 685 Level 3 Communications, LLC
209 739 3469 500 Qwest
4323 718 561 199 Time Warner Communications, I
18566 701 192 8 Covad Communications
6197 693 515 262 BellSouth Network Solutions,
6198 566 372 209 BellSouth Network Solutions,
20115 517 827 265 Charter Communications
852 513 1142 404 Telus Advanced Communications
7066 505 208 274 Virginia Polytechnic Institut
7843 502 643 114 Adelphia Corp.
7132 450 7847 333 Southwestern Bell Internet Se
2386 423 578 229 AT&T Data Communications Serv
6347 401 388 94 SAVVIS Communications Corpora
705 400 145 275 UUNET Technologies, Inc.
4355 391 323 101 EarthLink, Inc.
22909 389 843 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
702 656 2038 550 UUNET - Commercial IP service
3320 297 2477 237 Deutsche Telekom AG
3301 268 968 258 TeliaNet Sweden
8220 268 412 255 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 241 510 196 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
5515 201 779 143 Sonera Solution Autonomous Sy
3246 198 450 195 Song Networks
719 197 288 103 LANLINK autonomous system
3215 176 837 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 155 238 136 BT Ignite European Backbone
6746 138 28 114 Dynamic Network Technologies,
3269 134 1101 65 TELECOM ITALIA
3303 131 607 131 Swisscom Ltd
12302 120 17 27 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 213 77 48 Servicios Alestra S.A de C.V
16814 171 11 6 NSS, S.A.
6147 152 78 20 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.
11992 89 9 29 Integrated Systems
11556 88 73 25 Cable-Wireless Panama
6535 80 5 20 Chilesat Servicios Empresari
15311 74 18 37 Telefonica Empresas
14420 73 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 69 4 5 GTD Internet S.A.
7080 64 4 1 Electronica y Comunicaciones
10292 63 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
15808 13 1 5 Communication Solutions Ltd i
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 701 693 Covad Communications
4134 768 630 Data Communications Bureau
4323 718 519 Time Warner Communications, I
6197 693 431 BellSouth Network Solutions,
7843 502 388 Adelphia Corp.
9583 467 386 Satyam Infoway Ltd.,
701 1318 374 UUNET Technologies, Inc.
22909 389 363 Comcast Cable Corporation
5668 379 363 Century Telephone
6198 566 357 BellSouth Network Solutions,
27364 364 345 Armstrong Cable Services
22773 366 328 Cox Communications, Inc. Atla
6140 382 313 ImpSat
9929 344 313 China Netcom Corp.
17676 341 308 XTAGE CORPORATION
6347 401 307 SAVVIS Communications Corpora
4755 352 303 Videsh Sanchar Nigam Ltd. Aut
1239 929 299 Sprint
4355 391 290 EarthLink, Inc.
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
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65002 PRIVATE 203.86.170.0/24 9925 Powerbase DataCenter
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 /8:18 /9:3 /10:6 /11:16 /12:58
/13:113 /14:294 /15:507 /16:7744 /17:1998 /18:3564
/19:9365 /20:9799 /21:7071 /22:10108 /23:11455 /24:74748
/25:210 /26:254 /27:141 /28:30 /29:5 /30:55
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7018 1093 1458 AT&T
701 994 1318 UUNET Technologies, Inc.
1221 759 853 Telstra Pty Ltd
18566 684 701 Covad Communications
1239 663 929 Sprint
3356 649 893 Level 3 Communications, LLC
6197 582 693 BellSouth Network Solutions,
4323 504 718 Time Warner Communications, I
209 491 739 Qwest
7066 477 505 Virginia Polytechnic Institut
6198 456 566 BellSouth Network Solutions,
9583 454 467 Satyam Infoway Ltd.,
702 436 656 UUNET - Commercial IP service
4766 395 482 Korea Internet Exchange for "
5668 360 379 Century Telephone
6140 357 382 ImpSat
705 354 400 UUNET Technologies, Inc.
852 352 513 Telus Advanced Communications
27364 352 364 Armstrong Cable Services
2386 345 423 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 38:65 40:54 44:3
55:1 56:4 57:13 61:410 62:488 63:1845
64:1858 65:1972 66:2497 67:305 68:528 69:526
70:64 80:505 81:275 82:161 83:54 128:150
129:205 130:77 131:89 132:18 133:2 134:184
135:17 136:186 137:104 138:150 139:39 140:154
141:134 142:113 143:52 144:91 145:41 146:292
147:77 148:368 149:113 150:93 151:64 152:184
153:62 154:1 155:123 156:58 157:56 158:144
159:147 160:51 161:53 162:379 163:77 164:330
165:160 166:99 167:218 168:220 169:104 170:287
171:8 192:5532 193:2689 194:2031 195:1371 196:540
198:3646 199:3031 200:3287 201:8 202:4536 203:5516
204:2998 205:1966 206:2264 207:2483 208:2279 209:2837
210:1387 211:520 212:952 213:1141 214:37 215:28
216:3375 217:903 218:169 219:99 220:212 221:28
222:28
End of report
