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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 24 Jun, 2004
Analysis Summary
----------------
BGP routing table entries examined: 141301
Prefixes after maximum aggregation: 85213
Unique aggregates announced to Internet: 68128
Total ASes present in the Internet Routing Table: 17473
Origin-only ASes present in the Internet Routing Table: 15161
Origin ASes announcing only one prefix: 7063
Transit ASes present in the Internet Routing Table: 2312
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 4.9
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: 19
Number of addresses announced to Internet: 1313444124
Equivalent to 78 /8s, 73 /16s and 145 /24s
Percentage of available address space announced: 35.4
Percentage of allocated address space announced: 58.2
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 64653
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26950
Total APNIC prefixes after maximum aggregation: 13969
Prefixes being announced from the APNIC address blocks: 25171
Unique aggregates announced from the APNIC address blocks: 13914
APNIC Region origin ASes present in the Internet Routing Table: 2069
APNIC Region origin ASes announcing only one prefix: 615
APNIC Region transit ASes present in the Internet Routing Table: 334
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 150386688
Equivalent to 8 /8s, 246 /16s and 184 /24s
Percentage of available APNIC address space announced: 68.6
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: 81061
Total ARIN prefixes after maximum aggregation: 49899
Prefixes being announced from the ARIN address blocks: 62841
Unique aggregates announced from the ARIN address blocks: 21907
ARIN Region origin ASes present in the Internet Routing Table: 9271
ARIN Region origin ASes announcing only one prefix: 3307
ARIN Region transit ASes present in the Internet Routing Table: 900
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 225697824
Equivalent to 13 /8s, 115 /16s and 224 /24s
Percentage of available ARIN address space announced: 74.7
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 - 33791
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: 25968
Total RIPE prefixes after maximum aggregation: 18421
Prefixes being announced from the RIPE address blocks: 22735
Unique aggregates announced from the RIPE address blocks: 15122
RIPE Region origin ASes present in the Internet Routing Table: 5594
RIPE Region origin ASes announcing only one prefix: 3009
RIPE Region transit ASes present in the Internet Routing Table: 965
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 164841280
Equivalent to 9 /8s, 211 /16s and 71 /24s
Percentage of available RIPE address space announced: 57.8
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: 6166
Total LACNIC prefixes after maximum aggregation: 2248
Prefixes being announced from the LACNIC address blocks: 5798
Unique aggregates announced from the LACNIC address blocks: 3549
LACNIC Region origin ASes present in the Internet Routing Table: 378
LACNIC Region origin ASes announcing only one prefix: 109
LACNIC Region transit ASes present in the Internet Routing Table: 74
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15094016
Equivalent to 0 /8s, 230 /16s and 81 /24s
Percentage of available LACNIC address space announced: 45.0
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1152
Total AfriNIC prefixes after maximum aggregation: 676
Prefixes being announced from the AfriNIC address blocks: 782
Unique aggregates announced from the AfriNIC address blocks: 584
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1886720
Equivalent to 0 /8s, 28 /16s and 202 /24s
Percentage of available AfriNIC address space announced: 11.2
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 844 1075 612 Telstra Pty Ltd
4134 792 3664 146 Data Communications Bureau
4766 494 2896 264 Korea Internet Exchange for "
9583 460 38 98 Satyam Infoway Ltd.,
4755 370 134 55 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 345 1823 322 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
17557 337 23 165 Pakistan Telecom
703 325 359 254 UUNET
9929 321 156 33 China Netcom Corp.
2764 294 259 241 connect.com.au pty ltd
7474 262 267 205 Optus Communications Pty Ltd
9942 230 71 127 COMindico Australia
9800 224 369 62 CHINA UNICOM
9498 217 48 47 BHARTI BT INTERNET LTD.
10036 198 18 179 C&M Communication Co. Ltd.
4837 186 2019 105 chinanet IDC center beijing n
17974 183 51 98 PT TELEKOMUNIKASI INDONESIA
9304 179 161 25 Hutchison Telecom (HK)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1457 6894 1012 AT&T
701 1297 8485 925 UUNET Technologies, Inc.
1239 939 2982 636 Sprint
6347 931 400 101 SAVVIS Communications Corpora
3356 899 10935 681 Level 3 Communications, LLC
4323 744 555 207 Time Warner Communications, I
18566 724 192 8 Covad Communications
6197 707 525 276 BellSouth Network Solutions,
209 606 3468 506 Qwest
6198 574 439 220 BellSouth Network Solutions,
20115 561 373 287 Charter Communications
852 514 1142 402 Telus Advanced Communications
7843 511 660 130 Adelphia Corp.
7132 454 7872 340 Southwestern Bell Internet Se
2386 426 565 228 AT&T Data Communications Serv
721 393 13171 289 DLA Systems Automation Center
4355 393 323 103 EarthLink, Inc.
22909 393 825 26 Comcast Cable Corporation
705 388 128 264 UUNET Technologies, Inc.
22773 387 781 55 Cox Communications, Inc. Atla
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 646 2039 539 UUNET - Commercial IP service
3320 297 2468 235 Deutsche Telekom AG
3301 295 1098 268 TeliaNet Sweden
8220 275 429 263 COLT Internet - International
1257 247 497 195 SWIPnet Swedish IP Network
680 244 2025 239 DFN-IP service G-WiN
13083 216 51 8 Mannesmann Datenverarbeitung
3246 209 475 206 Song Networks
5515 198 843 143 Sonera Solution Autonomous Sy
8708 185 112 173 Romania Data Systems S.A.
3215 182 895 69 France Telecom Transpac
719 180 288 102 LANLINK autonomous system
25186 174 156 115 France Telecom Transpac's Tra
786 173 1778 173 The JANET IP Service
6746 157 29 128 Dynamic Network Technologies,
5400 145 205 120 BT Ignite European Backbone
3269 134 1099 64 TELECOM ITALIA
3303 134 611 133 Swisscom Ltd
12302 127 18 31 MobiFon S.A.
8866 124 14 10 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 356 96 58 Servicios Alestra S.A de C.V
6140 343 140 67 ImpSat
8151 270 373 128 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 184 82 21 Telefonica Del Peru
7303 145 53 33 Telecom Argentina Stet-France
6505 134 90 92 Global One Communicaoes Ltda
6503 131 202 89 AVANTEL, S.A.
11992 92 9 29 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 80 5 17 Chilesat Servicios Empresari
14420 78 5 28 ANDINATEL S.A.
14535 76 6 5 Techtel S.A.
15311 75 19 37 Telefonica Empresas
11311 73 7 20 Sinectis S.A.
5639 72 8 8 Telecommunications Services o
4270 71 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
14259 67 4 5 GTD Internet S.A.
10292 66 6 25 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 253 632 220 The Internet Solution
5536 111 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 276 80 The Internetworking Company o
11845 38 9 11 Data Pro Business Online
24835 31 18 6 RAYA Telecom - Egypt
9129 27 3 4 UUNET Kenya
8524 25 2 4 AUCEGYPT Autonomous System
16637 25 9 18 Johnnic e-Ventures
5713 24 125 23 Telkom SA Ltd
6713 24 38 9 Itissalat Al-MAGHRIB
12455 24 4 2 Jambonet Autonomous system
14988 24 16 1 Botswana Telecommunications C
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
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
15808 12 1 4 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 931 830 SAVVIS Communications Corpora
18566 724 716 Covad Communications
4134 792 646 Data Communications Bureau
4323 744 537 Time Warner Communications, I
6197 707 431 BellSouth Network Solutions,
7843 511 381 Adelphia Corp.
701 1297 372 UUNET Technologies, Inc.
5668 384 368 Century Telephone
22909 393 367 Comcast Cable Corporation
9583 460 362 Satyam Infoway Ltd.,
27364 376 357 Armstrong Cable Services
6198 574 354 BellSouth Network Solutions,
22773 387 332 Cox Communications, Inc. Atla
4755 370 315 Videsh Sanchar Nigam Ltd. Aut
17676 341 308 XTAGE CORPORATION
1239 939 303 Sprint
11172 356 298 Servicios Alestra S.A de C.V
4355 393 290 EarthLink, Inc.
9929 321 288 China Netcom Corp.
6140 343 276 ImpSat
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
18416 UNALLOCATED 61.56.97.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.98.0/24 9919 New Century InfoComm
65501 PRIVATE 66.60.187.0/24 14051 Roseville Telephone
65501 PRIVATE 66.60.188.0/22 14051 Roseville Telephone
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65000 PRIVATE 210.179.219.128/25 9768 Korea Telecom
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 721 DLA Systems Automation Center
156.154.16.0/22 7786 Lockheed Martin IMS
158.0.0.0/13 721 DLA Systems Automation Center
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
192.70.164.0/24 25689 National Research Council of
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
/13:124 /14:301 /15:518 /16:7879 /17:2068 /18:3629
/19:9479 /20:9925 /21:7306 /22:10338 /23:11822 /24:77059
/25:234 /26:243 /27:151 /28:26 /29:15 /30:68
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 707 931 SAVVIS Communications Corpora
18566 707 724 Covad Communications
7018 569 1457 AT&T
6197 536 707 BellSouth Network Solutions,
3356 504 899 Level 3 Communications, LLC
6198 404 574 BellSouth Network Solutions,
702 394 646 UUNET - Commercial IP service
1239 372 939 Sprint
701 366 1297 UUNET Technologies, Inc.
27364 364 376 Armstrong Cable Services
5668 336 384 Century Telephone
4766 313 494 Korea Internet Exchange for "
9583 309 460 Satyam Infoway Ltd.,
20115 296 561 Charter Communications
9929 255 321 China Netcom Corp.
14824 254 278 NewSouth Communications Corp.
690 246 282 Merit Network
3320 246 297 Deutsche Telekom AG
25844 244 244 Skadden, Arps, Slate, Meagher
13609 238 279 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:819 13:1 15:5 16:2 17:3
20:8 24:751 32:65 33:1 38:70 40:53
44:4 55:1 56:3 57:15 61:451 62:500
63:1863 64:2006 65:2035 66:2591 67:333 68:499
69:584 70:64 80:514 81:324 82:178 83:88
84:3 128:149 129:176 130:77 131:187 132:21
133:1 134:182 135:17 136:183 137:54 138:167
139:37 140:215 141:124 142:119 143:57 144:101
145:41 146:307 147:77 148:417 149:118 150:96
151:72 152:165 153:64 154:1 155:118 156:60
157:60 158:143 159:147 160:52 161:64 162:383
163:76 164:180 165:159 166:96 167:216 168:227
169:111 170:285 171:8 192:5561 193:2776 194:2052
195:1372 196:555 198:3693 199:3099 200:3550 201:8
202:4658 203:5621 204:3110 205:2088 206:2307 207:2515
208:2219 209:2966 210:1420 211:553 212:990 213:1173
214:66 215:30 216:3716 217:936 218:166 219:112
220:231 221:30 222:39
End of report
