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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 21 Jul, 2004
Analysis Summary
----------------
BGP routing table entries examined: 142568
Prefixes after maximum aggregation: 85463
Unique aggregates announced to Internet: 68641
Total ASes present in the Internet Routing Table: 17619
Origin-only ASes present in the Internet Routing Table: 15285
Origin ASes announcing only one prefix: 7148
Transit ASes present in the Internet Routing Table: 2334
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1304336544
Equivalent to 77 /8s, 190 /16s and 152 /24s
Percentage of available address space announced: 35.2
Percentage of allocated address space announced: 57.7
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 65501
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27376
Total APNIC prefixes after maximum aggregation: 13968
Prefixes being announced from the APNIC address blocks: 25587
Unique aggregates announced from the APNIC address blocks: 13988
APNIC Region origin ASes present in the Internet Routing Table: 2078
APNIC Region origin ASes announcing only one prefix: 621
APNIC Region transit ASes present in the Internet Routing Table: 332
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 153369536
Equivalent to 9 /8s, 36 /16s and 59 /24s
Percentage of available APNIC address space announced: 70.0
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: 81505
Total ARIN prefixes after maximum aggregation: 49964
Prefixes being announced from the ARIN address blocks: 63277
Unique aggregates announced from the ARIN address blocks: 22006
ARIN Region origin ASes present in the Internet Routing Table: 9318
ARIN Region origin ASes announcing only one prefix: 3329
ARIN Region transit ASes present in the Internet Routing Table: 914
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 227652384
Equivalent to 13 /8s, 145 /16s and 179 /24s
Percentage of available ARIN address space announced: 75.4
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: 26311
Total RIPE prefixes after maximum aggregation: 18593
Prefixes being announced from the RIPE address blocks: 23110
Unique aggregates announced from the RIPE address blocks: 15323
RIPE Region origin ASes present in the Internet Routing Table: 5677
RIPE Region origin ASes announcing only one prefix: 3064
RIPE Region transit ASes present in the Internet Routing Table: 972
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 167550656
Equivalent to 9 /8s, 252 /16s and 158 /24s
Percentage of available RIPE address space announced: 58.7
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, 33792 - 34815
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: 6174
Total LACNIC prefixes after maximum aggregation: 2254
Prefixes being announced from the LACNIC address blocks: 5848
Unique aggregates announced from the LACNIC address blocks: 3584
LACNIC Region origin ASes present in the Internet Routing Table: 384
LACNIC Region origin ASes announcing only one prefix: 112
LACNIC Region transit ASes present in the Internet Routing Table: 74
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 15367424
Equivalent to 0 /8s, 234 /16s and 125 /24s
Percentage of available LACNIC address space announced: 45.8
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1199
Total AfriNIC prefixes after maximum aggregation: 684
Prefixes being announced from the AfriNIC address blocks: 810
Unique aggregates announced from the AfriNIC address blocks: 640
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1901568
Equivalent to 0 /8s, 29 /16s and 4 /24s
Percentage of available AfriNIC address space announced: 11.3
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 821 1057 591 Telstra Pty Ltd
4134 811 4080 150 Data Communications Bureau
4766 499 2895 263 Korea Internet Exchange for "
9583 492 40 107 Satyam Infoway Ltd.,
4755 395 134 54 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 352 1840 326 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
9929 329 159 31 China Netcom Corp.
17557 321 22 164 Pakistan Telecom
703 317 342 246 UUNET
2764 288 258 235 connect.com.au pty ltd
7474 268 269 206 Optus Communications Pty Ltd
9942 231 71 128 COMindico Australia
4802 226 25 141 Wantree Development
9800 225 369 62 CHINA UNICOM
9498 220 48 50 BHARTI BT INTERNET LTD.
17633 211 54 8 ASN for Shandong Provincial N
10036 197 18 178 C&M Communication Co. Ltd.
4837 190 2017 104 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1425 6878 990 AT&T
701 1295 8442 926 UUNET Technologies, Inc.
6347 957 390 126 SAVVIS Communications Corpora
1239 938 2875 624 Sprint
3356 892 10933 673 Level 3 Communications, LLC
4323 742 570 210 Time Warner Communications, I
18566 726 192 8 Covad Communications
6197 717 527 281 BellSouth Network Solutions,
209 612 3435 500 Qwest
721 572 20774 267 DLA Systems Automation Center
20115 566 376 291 Charter Communications
7843 514 669 130 Adelphia Corp.
6198 512 396 214 BellSouth Network Solutions,
852 511 1142 399 Telus Advanced Communications
7132 478 7889 362 Southwestern Bell Internet Se
2386 408 533 228 AT&T Data Communications Serv
22909 396 826 32 Comcast Cable Corporation
4355 391 323 101 EarthLink, Inc.
705 389 128 265 UUNET Technologies, Inc.
22773 386 774 58 Cox Communications, Inc. Atla
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 645 2039 537 UUNET - Commercial IP service
3320 299 2463 239 Deutsche Telekom AG
3301 282 1098 271 TeliaNet Sweden
8220 277 433 264 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 217 747 186 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 215 484 212 Song Networks
5515 200 842 146 Sonera Solution Autonomous Sy
8708 192 113 176 Romania Data Systems S.A.
3215 182 895 70 France Telecom Transpac
786 174 1794 174 The JANET IP Service
25186 172 156 114 France Telecom Transpac's Tra
6746 158 29 128 Dynamic Network Technologies,
719 150 288 102 LANLINK autonomous system
5400 145 207 120 BT Ignite European Backbone
3269 136 1129 62 TELECOM ITALIA
3303 130 609 129 Swisscom Ltd
8866 130 14 11 Bulgarian Telecommunication C
12302 128 18 32 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 354 96 56 Servicios Alestra S.A de C.V
6140 334 140 65 ImpSat
8151 274 389 127 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 186 86 20 Telefonica Del Peru
6505 134 90 92 Global One Communicaoes Ltda
6503 129 202 87 AVANTEL, S.A.
7303 119 54 17 Telecom Argentina Stet-France
11992 91 9 29 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 81 5 16 Chilesat Servicios Empresari
14420 81 5 31 ANDINATEL S.A.
11311 80 7 18 Sinectis S.A.
15311 75 19 37 Telefonica Empresas
14535 73 6 5 Techtel S.A.
5639 71 8 8 Telecommunications Services o
4270 69 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
10292 67 6 26 TELECOMMUNICATIONS OF JAMAICA
11340 67 5 36 Red Universitaria Nacional
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 252 632 219 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 92 276 81 The Internetworking Company o
20928 42 16 1 Noor Advanced Technologies AS
11845 39 9 11 Data Pro Business Online
24835 31 18 6 RAYA Telecom - Egypt
16637 30 9 23 Johnnic e-Ventures
6713 26 38 9 Itissalat Al-MAGHRIB
9129 26 3 4 UUNET Kenya
5713 25 125 23 Telkom SA Ltd
14988 25 16 1 Botswana Telecommunications C
8524 24 2 7 AUCEGYPT Autonomous System
12455 23 4 2 Jambonet Autonomous system
10798 18 1 12 Standard Bank of South Africa
15706 17 4 4 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
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 957 831 SAVVIS Communications Corpora
18566 726 718 Covad Communications
4134 811 661 Data Communications Bureau
4323 742 532 Time Warner Communications, I
6197 717 436 BellSouth Network Solutions,
9583 492 385 Satyam Infoway Ltd.,
7843 514 384 Adelphia Corp.
701 1295 369 UUNET Technologies, Inc.
22909 396 364 Comcast Cable Corporation
5668 381 363 Century Telephone
4755 395 341 Videsh Sanchar Nigam Ltd. Aut
6467 367 334 E.Spire Communications, Inc.
27364 349 330 Armstrong Cable Services
22773 386 328 Cox Communications, Inc. Atla
1239 938 314 Sprint
17676 341 308 XTAGE CORPORATION
721 572 305 DLA Systems Automation Center
6198 512 298 BellSouth Network Solutions,
11172 354 298 Servicios Alestra S.A de C.V
9929 329 298 China Netcom Corp.
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
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
63330 RESERVED 213.8.224.0/23 5486 Euronet Digital Comm
63330 RESERVED 213.8.226.0/23 5486 Euronet Digital Comm
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
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
192.172.0.0/19 721 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 /8:18 /9:3 /10:6 /11:15 /12:61
/13:127 /14:302 /15:530 /16:7907 /17:2117 /18:3688
/19:9552 /20:10047 /21:7388 /22:10334 /23:11894 /24:77896
/25:229 /26:209 /27:116 /28:34 /29:17 /30:68
/31:0 /32:10
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 741 957 SAVVIS Communications Corpora
18566 709 726 Covad Communications
7018 546 1425 AT&T
6197 545 717 BellSouth Network Solutions,
3356 501 892 Level 3 Communications, LLC
702 396 645 UUNET - Commercial IP service
6198 381 512 BellSouth Network Solutions,
701 371 1295 UUNET Technologies, Inc.
1239 368 938 Sprint
9583 337 492 Satyam Infoway Ltd.,
27364 336 349 Armstrong Cable Services
5668 334 381 Century Telephone
4766 316 499 Korea Internet Exchange for "
20115 300 566 Charter Communications
6467 266 367 E.Spire Communications, Inc.
9929 260 329 China Netcom Corp.
14824 254 278 NewSouth Communications Corp.
3320 248 299 Deutsche Telekom AG
13609 245 288 Choice One Communications Inc
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:833 13:1 15:5 16:2 17:3
20:7 24:738 32:66 33:2 38:74 40:54
44:4 55:1 56:3 57:15 60:5 61:443
62:509 63:1875 64:2070 65:2042 66:2726 67:334
68:505 69:664 70:64 80:565 81:347 82:188
83:111 84:6 128:146 129:172 130:80 131:186
132:23 134:178 135:17 136:176 137:54 138:170
139:35 140:166 141:106 142:119 143:60 144:101
145:42 146:287 147:89 148:417 149:110 150:93
151:69 152:162 153:64 154:2 155:126 156:56
157:64 158:138 159:148 160:53 161:65 162:384
163:79 164:186 165:163 166:111 167:217 168:233
169:110 170:283 171:8 192:5560 193:2825 194:2066
195:1376 196:575 198:3647 199:3096 200:3607 201:9
202:4743 203:5659 204:3132 205:2095 206:2260 207:2510
208:2187 209:3058 210:1446 211:569 212:997 213:1165
214:70 215:30 216:3763 217:983 218:171 219:119
220:227 221:31 222:107
End of report
