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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 16 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 137646
Prefixes after maximum aggregation: 83515
Unique aggregates announced to Internet: 66414
Total ASes present in the Internet Routing Table: 17218
Origin-only ASes present in the Internet Routing Table: 14927
Origin ASes announcing only one prefix: 6941
Transit ASes present in the Internet Routing Table: 2291
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: 9
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1287536632
Equivalent to 76 /8s, 190 /16s and 63 /24s
Percentage of available address space announced: 34.7
Percentage of allocated address space announced: 57.0
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 61802
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26276
Total APNIC prefixes after maximum aggregation: 13527
Prefixes being announced from the APNIC address blocks: 24586
Unique aggregates announced from the APNIC address blocks: 13436
APNIC Region origin ASes present in the Internet Routing Table: 2054
APNIC Region origin ASes announcing only one prefix: 613
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 146613504
Equivalent to 8 /8s, 189 /16s and 37 /24s
Percentage of available APNIC address space announced: 66.9
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: 78929
Total ARIN prefixes after maximum aggregation: 49002
Prefixes being announced from the ARIN address blocks: 60964
Unique aggregates announced from the ARIN address blocks: 21295
ARIN Region origin ASes present in the Internet Routing Table: 9167
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: 224367904
Equivalent to 13 /8s, 95 /16s and 149 /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: 25410
Total RIPE prefixes after maximum aggregation: 18080
Prefixes being announced from the RIPE address blocks: 22218
Unique aggregates announced from the RIPE address blocks: 14688
RIPE Region origin ASes present in the Internet Routing Table: 5451
RIPE Region origin ASes announcing only one prefix: 2930
RIPE Region transit ASes present in the Internet Routing Table: 942
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 161080576
Equivalent to 9 /8s, 153 /16s and 229 /24s
Percentage of available RIPE address space announced: 56.5
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: 5881
Total LACNIC prefixes after maximum aggregation: 2230
Prefixes being announced from the LACNIC address blocks: 5541
Unique aggregates announced from the LACNIC address blocks: 3455
LACNIC Region origin ASes present in the Internet Routing Table: 378
LACNIC Region origin ASes announcing only one prefix: 106
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: 14898176
Equivalent to 0 /8s, 227 /16s and 84 /24s
Percentage of available LACNIC address space announced: 44.4
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: 676
Prefixes being announced from the AfriNIC address blocks: 755
Unique aggregates announced from the AfriNIC address blocks: 557
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: 5.0
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1850624
Equivalent to 0 /8s, 28 /16s and 61 /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 616 Telstra Pty Ltd
4134 768 3482 139 Data Communications Bureau
4766 484 2903 258 Korea Internet Exchange for "
9583 474 44 12 Satyam Infoway Ltd.,
4755 354 125 52 Videsh Sanchar Nigam Ltd. Aut
9443 352 69 78 Primus Telecommunications
2907 351 1840 328 SINET Japan
9929 344 156 33 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 330 375 257 UUNET
17557 327 23 164 Pakistan Telecom
2764 295 275 242 connect.com.au pty ltd
7474 268 268 210 Optus Communications Pty Ltd
9942 228 71 125 COMindico Australia
9800 219 366 58 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 194 31 45 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 1432 6888 998 AT&T
701 1319 8544 945 UUNET Technologies, Inc.
1239 936 3016 635 Sprint
3356 893 10948 676 Level 3 Communications, LLC
209 736 3469 503 Qwest
4323 726 561 200 Time Warner Communications, I
18566 704 192 8 Covad Communications
6197 701 517 267 BellSouth Network Solutions,
6198 568 372 210 BellSouth Network Solutions,
20115 536 848 273 Charter Communications
852 512 1142 403 Telus Advanced Communications
7066 505 208 274 Virginia Polytechnic Institut
7843 496 644 116 Adelphia Corp.
7132 450 7868 334 Southwestern Bell Internet Se
2386 427 593 231 AT&T Data Communications Serv
6347 401 388 90 SAVVIS Communications Corpora
705 399 145 274 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
702 649 2037 544 UUNET - Commercial IP service
3320 298 2477 238 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
719 194 288 102 LANLINK autonomous system
3215 177 835 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 149 225 130 BT Ignite European Backbone
6746 138 28 114 Dynamic Network Technologies,
3269 137 1101 65 TELECOM ITALIA
3303 134 611 134 Swisscom Ltd
12302 122 18 29 MobiFon S.A.
1273 109 165 88 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 385 123 70 ImpSat
8151 270 373 129 UniNet S.A. de C.V.
11172 216 79 51 Servicios Alestra S.A de C.V
16814 171 11 6 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 88 9 28 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 78 5 20 Chilesat Servicios Empresari
15311 74 18 37 Telefonica Empresas
5639 72 8 8 Telecommunications Services o
4270 71 18 9 Red de Interconexion Universi
14535 71 6 5 Techtel S.A.
14420 70 4 29 ANDINATEL S.A.
11311 69 7 19 Sinectis S.A.
14259 68 4 5 GTD Internet S.A.
10292 65 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 36 9 11 Data Pro Business Online
24835 31 18 6 RAYA Telecom - Egypt
9129 28 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 768 629 Data Communications Bureau
4323 726 526 Time Warner Communications, I
9583 474 462 Satyam Infoway Ltd.,
6197 701 434 BellSouth Network Solutions,
7843 496 380 Adelphia Corp.
701 1319 374 UUNET Technologies, Inc.
5668 377 360 Century Telephone
6198 568 358 BellSouth Network Solutions,
22909 386 357 Comcast Cable Corporation
27364 359 340 Armstrong Cable Services
22773 370 329 Cox Communications, Inc. Atla
6140 385 315 ImpSat
6347 401 311 SAVVIS Communications Corpora
9929 344 311 China Netcom Corp.
17676 341 308 XTAGE CORPORATION
4755 354 302 Videsh Sanchar Nigam Ltd. Aut
1239 936 301 Sprint
4355 391 290 EarthLink, Inc.
9443 352 274 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 5713 Telkom SA Ltd
30306 UNALLOCATED 212.85.220.0/22 5713 Telkom SA Ltd
30306 UNALLOCATED 212.85.221.0/24 5713 Telkom SA Ltd
30306 UNALLOCATED 212.85.222.0/24 5713 Telkom SA Ltd
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
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 /12:59
/13:118 /14:293 /15:508 /16:7741 /17:2012 /18:3580
/19:9364 /20:9837 /21:7128 /22:10122 /23:11457 /24:74667
/25:213 /26:263 /27:141 /28:30 /29:5 /30:53
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 687 704 Covad Communications
7018 541 1432 AT&T
6197 533 701 BellSouth Network Solutions,
3356 502 893 Level 3 Communications, LLC
6198 404 568 BellSouth Network Solutions,
7066 399 505 Virginia Polytechnic Institut
702 394 649 UUNET - Commercial IP service
701 367 1319 UUNET Technologies, Inc.
1239 361 936 Sprint
27364 347 359 Armstrong Cable Services
5668 330 377 Century Telephone
9583 309 474 Satyam Infoway Ltd.,
4766 307 484 Korea Internet Exchange for "
20115 275 536 Charter Communications
9929 274 344 China Netcom Corp.
14824 250 275 NewSouth Communications Corp.
690 247 283 Merit Network
3320 245 298 Deutsche Telekom AG
25844 243 243 Skadden, Arps, Slate, Meagher
13609 234 275 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:816 13:1 15:5 16:1 17:3
20:8 24:718 32:96 38:67 40:54 44:3
55:1 56:4 57:14 61:412 62:485 63:1850
64:1825 65:1985 66:2479 67:308 68:513 69:543
70:64 80:503 81:289 82:170 83:57 128:149
129:199 130:77 131:90 132:18 133:1 134:178
135:17 136:186 137:104 138:149 139:38 140:155
141:126 142:116 143:54 144:91 145:42 146:291
147:76 148:374 149:115 150:93 151:65 152:168
153:62 154:1 155:123 156:58 157:54 158:144
159:147 160:52 161:54 162:380 163:74 164:332
165:160 166:99 167:218 168:222 169:105 170:285
171:8 192:5528 193:2694 194:2043 195:1361 196:532
198:3659 199:3040 200:3318 201:8 202:4556 203:5525
204:3011 205:1982 206:2242 207:2438 208:2240 209:2789
210:1366 211:499 212:953 213:1144 214:41 215:28
216:3378 217:915 218:171 219:102 220:215 221:28
222:34
End of report
