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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 12 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 137829
Prefixes after maximum aggregation: 83534
Unique aggregates announced to Internet: 66556
Total ASes present in the Internet Routing Table: 17187
Origin-only ASes present in the Internet Routing Table: 14899
Origin ASes announcing only one prefix: 6917
Transit ASes present in the Internet Routing Table: 2288
Transit-only ASes present in the Internet Routing Table: 76
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: 1302524600
Equivalent to 77 /8s, 162 /16s and 242 /24s
Percentage of available address space announced: 35.1
Percentage of allocated address space announced: 57.7
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 61997
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26258
Total APNIC prefixes after maximum aggregation: 13653
Prefixes being announced from the APNIC address blocks: 24561
Unique aggregates announced from the APNIC address blocks: 13687
APNIC Region origin ASes present in the Internet Routing Table: 2050
APNIC Region origin ASes announcing only one prefix: 611
APNIC Region transit ASes present in the Internet Routing Table: 326
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 146406656
Equivalent to 8 /8s, 185 /16s and 253 /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: 79211
Total ARIN prefixes after maximum aggregation: 48933
Prefixes being announced from the ARIN address blocks: 61183
Unique aggregates announced from the ARIN address blocks: 21297
ARIN Region origin ASes present in the Internet Routing Table: 9162
ARIN Region origin ASes announcing only one prefix: 3269
ARIN Region transit ASes present in the Internet Routing Table: 910
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 223164448
Equivalent to 13 /8s, 77 /16s and 56 /24s
Percentage of available ARIN address space announced: 73.9
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: 25347
Total RIPE prefixes after maximum aggregation: 18056
Prefixes being announced from the RIPE address blocks: 22164
Unique aggregates announced from the RIPE address blocks: 14621
RIPE Region origin ASes present in the Internet Routing Table: 5431
RIPE Region origin ASes announcing only one prefix: 2909
RIPE Region transit ASes present in the Internet Routing Table: 940
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 160477696
Equivalent to 9 /8s, 144 /16s and 178 /24s
Percentage of available RIPE address space announced: 56.3
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: 5858
Total LACNIC prefixes after maximum aggregation: 2217
Prefixes being announced from the LACNIC address blocks: 5513
Unique aggregates announced from the LACNIC address blocks: 3445
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: 14872832
Equivalent to 0 /8s, 226 /16s and 241 /24s
Percentage of available LACNIC address space announced: 44.3
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1153
Total AfriNIC prefixes after maximum aggregation: 675
Prefixes being announced from the AfriNIC address blocks: 767
Unique aggregates announced from the AfriNIC address blocks: 572
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: 1850368
Equivalent to 0 /8s, 28 /16s and 60 /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 769 3482 139 Data Communications Bureau
4766 485 2903 261 Korea Internet Exchange for "
9583 464 40 81 Satyam Infoway Ltd.,
4755 354 125 52 Videsh Sanchar Nigam Ltd. Aut
9443 354 69 78 Primus Telecommunications
2907 351 1840 328 SINET Japan
9929 341 155 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 266 268 209 Optus Communications Pty Ltd
9942 230 71 126 COMindico Australia
9800 219 364 59 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 190 31 45 BHARTI BT INTERNET LTD.
4837 178 1683 105 chinanet IDC center beijing n
17974 177 51 98 PT TELEKOMUNIKASI INDONESIA
9304 171 161 25 Hutchison Telecom (HK)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1451 6927 1007 AT&T
701 1319 8542 945 UUNET Technologies, Inc.
1239 934 3016 634 Sprint
3356 899 10951 684 Level 3 Communications, LLC
209 741 3469 504 Qwest
4323 722 561 200 Time Warner Communications, I
18566 703 192 8 Covad Communications
6197 698 517 265 BellSouth Network Solutions,
3549 610 598 252 Global Crossing
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 498 645 113 Adelphia Corp.
7132 451 7864 334 Southwestern Bell Internet Se
2386 426 593 232 AT&T Data Communications Serv
6347 400 387 93 SAVVIS Communications Corpora
705 399 145 274 UUNET Technologies, Inc.
22909 388 841 27 Comcast Cable Corporation
4355 383 323 101 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 653 2037 547 UUNET - Commercial IP service
3320 298 2477 238 Deutsche Telekom AG
8220 270 412 256 COLT Internet - International
3301 269 968 259 TeliaNet Sweden
680 244 2025 239 DFN-IP service G-WiN
1257 242 495 195 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 203 461 200 Song Networks
5515 201 779 143 Sonera Solution Autonomous Sy
719 196 288 103 LANLINK autonomous system
3215 177 835 69 France Telecom Transpac
25186 176 188 117 France Telecom Transpac's Tra
786 174 1810 174 The JANET IP Service
8708 174 111 163 Romania Data Systems S.A.
5400 151 228 132 BT Ignite European Backbone
6746 138 28 114 Dynamic Network Technologies,
3269 135 1101 65 TELECOM ITALIA
3303 133 607 133 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 384 122 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 160 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
4270 71 18 9 Red de Interconexion Universi
14535 71 6 5 Techtel S.A.
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 28 3 4 UUNET Kenya
5713 26 125 24 Telkom SA Ltd
6713 26 38 9 Itissalat Al-MAGHRIB
16637 25 9 18 Johnnic e-Ventures
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 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 703 695 Covad Communications
4134 769 630 Data Communications Bureau
4323 722 522 Time Warner Communications, I
6197 698 433 BellSouth Network Solutions,
7843 498 385 Adelphia Corp.
9583 464 383 Satyam Infoway Ltd.,
701 1319 374 UUNET Technologies, Inc.
22909 388 361 Comcast Cable Corporation
5668 377 361 Century Telephone
3549 610 358 Global Crossing
6198 568 358 BellSouth Network Solutions,
27364 359 340 Armstrong Cable Services
22773 369 329 Cox Communications, Inc. Atla
6140 384 315 ImpSat
9929 341 310 China Netcom Corp.
17676 341 308 XTAGE CORPORATION
6347 400 307 SAVVIS Communications Corpora
4755 354 302 Videsh Sanchar Nigam Ltd. Aut
1239 934 300 Sprint
4355 383 282 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
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
65500 PRIVATE 219.83.32.0/22 4795 INDOSATNET-ASN
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
/13:115 /14:293 /15:507 /16:7744 /17:2007 /18:3566
/19:9346 /20:9807 /21:7100 /22:10136 /23:11500 /24:74973
/25:197 /26:232 /27:104 /28:30 /29:5 /30:53
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 686 703 Covad Communications
7018 551 1451 AT&T
6197 530 698 BellSouth Network Solutions,
3356 505 899 Level 3 Communications, LLC
6198 404 568 BellSouth Network Solutions,
7066 399 505 Virginia Polytechnic Institut
702 397 653 UUNET - Commercial IP service
701 366 1319 UUNET Technologies, Inc.
1239 359 934 Sprint
27364 347 359 Armstrong Cable Services
5668 330 377 Century Telephone
9583 306 464 Satyam Infoway Ltd.,
4766 305 485 Korea Internet Exchange for "
690 273 309 Merit Network
3549 272 610 Global Crossing
9929 271 341 China Netcom Corp.
20115 269 519 Charter Communications
14824 250 275 NewSouth Communications Corp.
3320 245 298 Deutsche Telekom AG
25844 244 244 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:814 13:1 15:5 16:1 17:3
20:8 24:713 32:96 38:67 40:54 44:3
55:1 56:4 57:13 61:414 62:487 63:1846
64:1941 65:1985 66:2484 67:318 68:513 69:533
70:64 80:506 81:284 82:171 83:56 128:147
129:206 130:77 131:89 132:18 133:1 134:184
135:17 136:185 137:104 138:150 139:39 140:154
141:134 142:113 143:54 144:91 145:41 146:307
147:77 148:375 149:113 150:92 151:64 152:183
153:62 154:1 155:123 156:58 157:55 158:144
159:146 160:52 161:54 162:379 163:75 164:337
165:160 166:99 167:219 168:222 169:105 170:287
171:8 192:5528 193:2691 194:2040 195:1368 196:544
198:3635 199:3039 200:3299 201:8 202:4528 203:5523
204:3003 205:1961 206:2299 207:2517 208:2300 209:2829
210:1381 211:513 212:961 213:1143 214:37 215:28
216:3363 217:904 218:170 219:99 220:215 221:28
222:30
End of report
