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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 14 Jun, 2004
Analysis Summary
----------------
BGP routing table entries examined: 140396
Prefixes after maximum aggregation: 84880
Unique aggregates announced to Internet: 67713
Total ASes present in the Internet Routing Table: 17405
Origin-only ASes present in the Internet Routing Table: 15114
Origin ASes announcing only one prefix: 7031
Transit ASes present in the Internet Routing Table: 2291
Transit-only ASes present in the Internet Routing Table: 70
Average AS path length visible in the Internet Routing Table: 5.1
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1311653116
Equivalent to 78 /8s, 46 /16s and 60 /24s
Percentage of available address space announced: 35.4
Percentage of allocated address space announced: 58.1
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 64097
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26871
Total APNIC prefixes after maximum aggregation: 13805
Prefixes being announced from the APNIC address blocks: 25101
Unique aggregates announced from the APNIC address blocks: 13616
APNIC Region origin ASes present in the Internet Routing Table: 2064
APNIC Region origin ASes announcing only one prefix: 615
APNIC Region transit ASes present in the Internet Routing Table: 336
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 150067712
Equivalent to 8 /8s, 241 /16s and 218 /24s
Percentage of available APNIC address space announced: 68.5
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: 80483
Total ARIN prefixes after maximum aggregation: 49792
Prefixes being announced from the ARIN address blocks: 62402
Unique aggregates announced from the ARIN address blocks: 21945
ARIN Region origin ASes present in the Internet Routing Table: 9250
ARIN Region origin ASes announcing only one prefix: 3294
ARIN Region transit ASes present in the Internet Routing Table: 895
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 225193504
Equivalent to 13 /8s, 108 /16s and 46 /24s
Percentage of available ARIN address space announced: 74.6
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: 25775
Total RIPE prefixes after maximum aggregation: 18338
Prefixes being announced from the RIPE address blocks: 22578
Unique aggregates announced from the RIPE address blocks: 15077
RIPE Region origin ASes present in the Internet Routing Table: 5550
RIPE Region origin ASes announcing only one prefix: 2989
RIPE Region transit ASes present in the Internet Routing Table: 947
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 164346880
Equivalent to 9 /8s, 203 /16s and 188 /24s
Percentage of available RIPE address space announced: 57.6
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: 6114
Total LACNIC prefixes after maximum aggregation: 2270
Prefixes being announced from the LACNIC address blocks: 5737
Unique aggregates announced from the LACNIC address blocks: 3515
LACNIC Region origin ASes present in the Internet Routing Table: 380
LACNIC Region origin ASes announcing only one prefix: 110
LACNIC Region transit ASes present in the Internet Routing Table: 74
Average LACNIC Region AS path length visible: 5.5
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 15066112
Equivalent to 0 /8s, 229 /16s and 228 /24s
Percentage of available LACNIC address space announced: 44.9
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: 781
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: 5.2
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1865728
Equivalent to 0 /8s, 28 /16s and 120 /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 844 1075 612 Telstra Pty Ltd
4134 786 3660 143 Data Communications Bureau
4766 491 2896 264 Korea Internet Exchange for "
9583 452 44 12 Satyam Infoway Ltd.,
4755 364 133 52 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 350 1840 327 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
17557 330 23 165 Pakistan Telecom
703 329 375 256 UUNET
9929 323 156 33 China Netcom Corp.
2764 294 274 241 connect.com.au pty ltd
7474 263 267 206 Optus Communications Pty Ltd
9942 229 71 126 COMindico Australia
9800 224 367 62 CHINA UNICOM
9498 218 47 46 BHARTI BT INTERNET LTD.
4780 210 193 26 Digital United Inc.
17974 183 51 98 PT TELEKOMUNIKASI INDONESIA
4837 182 2019 105 chinanet IDC center beijing n
10036 181 17 169 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1436 6891 1001 AT&T
701 1305 8493 930 UUNET Technologies, Inc.
1239 944 3002 638 Sprint
6347 937 400 99 SAVVIS Communications Corpora
3356 890 10900 674 Level 3 Communications, LLC
4323 739 549 205 Time Warner Communications, I
18566 710 192 8 Covad Communications
6197 703 499 286 BellSouth Network Solutions,
209 625 3454 504 Qwest
6198 571 440 219 BellSouth Network Solutions,
20115 557 369 288 Charter Communications
852 515 1142 404 Telus Advanced Communications
7843 506 652 128 Adelphia Corp.
7132 452 7868 338 Southwestern Bell Internet Se
2386 431 582 232 AT&T Data Communications Serv
705 393 144 268 UUNET Technologies, Inc.
4355 393 323 103 EarthLink, Inc.
22909 390 843 25 Comcast Cable Corporation
22773 386 779 54 Cox Communications, Inc. Atla
376 385 359 112 Reseau Interordinateurs Scien
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 2462 237 Deutsche Telekom AG
3301 277 1097 266 TeliaNet Sweden
8220 274 429 262 COLT Internet - International
1257 250 497 197 SWIPnet Swedish IP Network
680 244 2025 239 DFN-IP service G-WiN
13083 216 51 8 Mannesmann Datenverarbeitung
3246 210 484 207 Song Networks
5515 199 843 144 Sonera Solution Autonomous Sy
8708 181 112 169 Romania Data Systems S.A.
719 179 288 102 LANLINK autonomous system
3215 178 895 69 France Telecom Transpac
786 174 1794 174 The JANET IP Service
25186 167 156 116 France Telecom Transpac's Tra
6746 157 29 126 Dynamic Network Technologies,
5400 144 206 119 BT Ignite European Backbone
3269 134 1099 64 TELECOM ITALIA
3303 132 611 132 Swisscom Ltd
12302 125 18 31 MobiFon S.A.
8866 121 14 8 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 356 96 57 Servicios Alestra S.A de C.V
6140 345 140 67 ImpSat
8151 275 373 130 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 161 82 21 Telefonica Del Peru
7303 144 53 31 Telecom Argentina Stet-France
6505 135 90 93 Global One Communicaoes Ltda
6503 129 218 87 AVANTEL, S.A.
11992 93 9 29 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
14420 85 5 32 ANDINATEL S.A.
6535 80 5 17 Chilesat Servicios Empresari
14535 75 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 70 18 9 Red de Interconexion Universi
14259 67 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 253 632 220 The Internet Solution
5536 111 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 89 276 79 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
5713 26 125 24 Telkom SA Ltd
8524 25 2 4 AUCEGYPT Autonomous System
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
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 937 838 SAVVIS Communications Corpora
18566 710 702 Covad Communications
4134 786 643 Data Communications Bureau
4323 739 534 Time Warner Communications, I
9583 452 440 Satyam Infoway Ltd.,
6197 703 417 BellSouth Network Solutions,
7843 506 378 Adelphia Corp.
701 1305 375 UUNET Technologies, Inc.
5668 383 366 Century Telephone
22909 390 365 Comcast Cable Corporation
27364 376 357 Armstrong Cable Services
6198 571 352 BellSouth Network Solutions,
22773 386 332 Cox Communications, Inc. Atla
4755 364 312 Videsh Sanchar Nigam Ltd. Aut
17676 341 308 XTAGE CORPORATION
1239 944 306 Sprint
11172 356 299 Servicios Alestra S.A de C.V
4355 393 290 EarthLink, Inc.
9929 323 290 China Netcom Corp.
6140 345 278 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
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
137.0.0.0/13 568 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
192.70.164.0/24 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
192.172.0.0/19 721 DLA Systems Automation Center
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 /14:299 /15:518 /16:7850 /17:2063 /18:3616
/19:9415 /20:9907 /21:7271 /22:10326 /23:11741 /24:76409
/25:231 /26:253 /27:143 /28:31 /29:14 /30:69
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 714 937 SAVVIS Communications Corpora
18566 693 710 Covad Communications
7018 555 1436 AT&T
6197 534 703 BellSouth Network Solutions,
3356 504 890 Level 3 Communications, LLC
6198 400 571 BellSouth Network Solutions,
702 398 646 UUNET - Commercial IP service
1239 375 944 Sprint
701 373 1305 UUNET Technologies, Inc.
27364 364 376 Armstrong Cable Services
5668 335 383 Century Telephone
4766 312 491 Korea Internet Exchange for "
9583 305 452 Satyam Infoway Ltd.,
20115 296 557 Charter Communications
9929 256 323 China Netcom Corp.
14824 255 281 NewSouth Communications Corp.
3320 247 297 Deutsche Telekom AG
690 246 282 Merit Network
25844 244 244 Skadden, Arps, Slate, Meagher
13609 237 278 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:828 13:1 15:5 16:2 17:3
20:8 24:746 32:65 33:1 38:69 40:54
44:3 55:1 56:3 57:16 61:425 62:501
63:1817 64:1967 65:2000 66:2598 67:328 68:498
69:557 70:64 80:495 81:308 82:174 83:65
84:2 128:146 129:186 130:76 131:177 132:21
133:1 134:182 135:17 136:182 137:55 138:148
139:43 140:164 141:125 142:117 143:45 144:90
145:42 146:303 147:78 148:418 149:117 150:94
151:72 152:165 153:64 154:1 155:117 156:61
157:60 158:144 159:147 160:52 161:57 162:380
163:75 164:179 165:156 166:93 167:216 168:226
169:104 170:285 171:8 192:5529 193:2754 194:2032
195:1372 196:558 198:3671 199:3071 200:3491 201:8
202:4616 203:5641 204:3103 205:2077 206:2290 207:2487
208:2223 209:2923 210:1428 211:566 212:981 213:1199
214:62 215:30 216:3697 217:931 218:162 219:108
220:228 221:29 222:46
End of report
