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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 11 Jul, 2004
Analysis Summary
----------------
BGP routing table entries examined: 142450
Prefixes after maximum aggregation: 85335
Unique aggregates announced to Internet: 68362
Total ASes present in the Internet Routing Table: 17568
Origin-only ASes present in the Internet Routing Table: 15223
Origin ASes announcing only one prefix: 7144
Transit ASes present in the Internet Routing Table: 2345
Transit-only ASes present in the Internet Routing Table: 76
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: 1300860136
Equivalent to 77 /8s, 137 /16s and 140 /24s
Percentage of available address space announced: 35.1
Percentage of allocated address space announced: 57.6
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 65438
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27307
Total APNIC prefixes after maximum aggregation: 14021
Prefixes being announced from the APNIC address blocks: 25539
Unique aggregates announced from the APNIC address blocks: 13979
APNIC Region origin ASes present in the Internet Routing Table: 2069
APNIC Region origin ASes announcing only one prefix: 625
APNIC Region transit ASes present in the Internet Routing Table: 335
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 151955136
Equivalent to 9 /8s, 14 /16s and 166 /24s
Percentage of available APNIC address space announced: 69.3
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: 81547
Total ARIN prefixes after maximum aggregation: 49847
Prefixes being announced from the ARIN address blocks: 63334
Unique aggregates announced from the ARIN address blocks: 21889
ARIN Region origin ASes present in the Internet Routing Table: 9304
ARIN Region origin ASes announcing only one prefix: 3337
ARIN Region transit ASes present in the Internet Routing Table: 909
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 227295008
Equivalent to 13 /8s, 140 /16s and 63 /24s
Percentage of available ARIN address space announced: 75.3
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 - 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: 26191
Total RIPE prefixes after maximum aggregation: 18532
Prefixes being announced from the RIPE address blocks: 22991
Unique aggregates announced from the RIPE address blocks: 15225
RIPE Region origin ASes present in the Internet Routing Table: 5646
RIPE Region origin ASes announcing only one prefix: 3047
RIPE Region transit ASes present in the Internet Routing Table: 982
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 165953088
Equivalent to 9 /8s, 228 /16s and 62 /24s
Percentage of available RIPE address space announced: 58.2
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: 6211
Total LACNIC prefixes after maximum aggregation: 2250
Prefixes being announced from the LACNIC address blocks: 5876
Unique aggregates announced from the LACNIC address blocks: 3609
LACNIC Region origin ASes present in the Internet Routing Table: 380
LACNIC Region origin ASes announcing only one prefix: 111
LACNIC Region transit ASes present in the Internet Routing Table: 75
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 15289088
Equivalent to 0 /8s, 233 /16s and 75 /24s
Percentage of available LACNIC address space announced: 45.6
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1191
Total AfriNIC prefixes after maximum aggregation: 685
Prefixes being announced from the AfriNIC address blocks: 799
Unique aggregates announced from the AfriNIC address blocks: 632
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 24
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1896192
Equivalent to 0 /8s, 28 /16s and 239 /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 824 1057 594 Telstra Pty Ltd
4134 806 3752 146 Data Communications Bureau
4766 497 2895 264 Korea Internet Exchange for "
9583 487 39 104 Satyam Infoway Ltd.,
4755 400 132 61 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 352 1840 326 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
9929 327 157 32 China Netcom Corp.
17557 320 22 163 Pakistan Telecom
703 319 342 248 UUNET
2764 288 258 236 connect.com.au pty ltd
7474 266 269 206 Optus Communications Pty Ltd
9942 230 71 128 COMindico Australia
4802 225 25 140 Wantree Development
9800 224 369 62 CHINA UNICOM
9498 218 48 49 BHARTI BT INTERNET LTD.
10026 206 11 131 IXNet Hong Kong Limited
10036 198 18 179 C&M Communication Co. Ltd.
4837 189 2019 105 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1437 6878 989 AT&T
701 1300 8440 932 UUNET Technologies, Inc.
6347 962 396 102 SAVVIS Communications Corpora
1239 937 2889 629 Sprint
3356 892 10916 674 Level 3 Communications, LLC
4323 740 569 206 Time Warner Communications, I
18566 725 192 8 Covad Communications
6197 710 526 278 BellSouth Network Solutions,
209 615 3454 506 Qwest
20115 563 374 289 Charter Communications
2548 550 899 131 Business Internet, Inc.
7843 515 669 130 Adelphia Corp.
6198 511 396 214 BellSouth Network Solutions,
852 510 1142 398 Telus Advanced Communications
7132 470 7879 354 Southwestern Bell Internet Se
721 468 15374 338 DLA Systems Automation Center
2386 408 549 227 AT&T Data Communications Serv
22909 398 826 22 Comcast Cable Corporation
4355 391 323 101 EarthLink, Inc.
705 389 128 265 UUNET Technologies, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 648 2039 542 UUNET - Commercial IP service
3320 296 2463 237 Deutsche Telekom AG
3301 282 1098 271 TeliaNet Sweden
8220 275 429 263 COLT Internet - International
1257 248 498 196 SWIPnet Swedish IP Network
680 244 2025 239 DFN-IP service G-WiN
13083 216 51 8 Mannesmann Datenverarbeitung
3246 213 479 210 Song Networks
5515 200 842 146 Sonera Solution Autonomous Sy
8708 190 112 176 Romania Data Systems S.A.
719 181 288 103 LANLINK autonomous system
3215 180 895 71 France Telecom Transpac
786 173 1778 173 The JANET IP Service
25186 172 156 114 France Telecom Transpac's Tra
6746 157 29 128 Dynamic Network Technologies,
5400 145 205 120 BT Ignite European Backbone
3269 135 1099 64 TELECOM ITALIA
3303 130 609 129 Swisscom Ltd
8866 129 14 12 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 356 96 58 Servicios Alestra S.A de C.V
6140 334 140 65 ImpSat
8151 276 389 128 UniNet S.A. de C.V.
16814 219 14 8 NSS, S.A.
6147 186 86 20 Telefonica Del Peru
7303 148 54 27 Telecom Argentina Stet-France
6505 134 90 92 Global One Communicaoes Ltda
6503 128 202 87 AVANTEL, S.A.
11992 91 9 29 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 81 5 16 Chilesat Servicios Empresari
14420 78 5 28 ANDINATEL S.A.
15311 75 19 37 Telefonica Empresas
11311 72 7 17 Sinectis S.A.
14535 72 6 5 Techtel S.A.
5639 71 8 8 Telecommunications Services o
4270 70 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 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 39 9 11 Data Pro Business Online
20928 35 16 1 Noor Advanced Technologies AS
24835 31 18 6 RAYA Telecom - Egypt
16637 30 9 23 Johnnic e-Ventures
9129 28 3 4 UUNET Kenya
6713 26 38 9 Itissalat Al-MAGHRIB
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 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
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 962 860 SAVVIS Communications Corpora
18566 725 717 Covad Communications
4134 806 660 Data Communications Bureau
4323 740 534 Time Warner Communications, I
6197 710 432 BellSouth Network Solutions,
2548 550 419 Business Internet, Inc.
7843 515 385 Adelphia Corp.
9583 487 383 Satyam Infoway Ltd.,
22909 398 376 Comcast Cable Corporation
701 1300 368 UUNET Technologies, Inc.
5668 380 362 Century Telephone
27364 377 358 Armstrong Cable Services
4755 400 339 Videsh Sanchar Nigam Ltd. Aut
22773 383 327 Cox Communications, Inc. Atla
6467 351 319 E.Spire Communications, Inc.
1239 937 308 Sprint
17676 341 308 XTAGE CORPORATION
11172 356 298 Servicios Alestra S.A de C.V
6198 511 297 BellSouth Network Solutions,
9929 327 295 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 /12:59
/13:127 /14:302 /15:524 /16:7891 /17:2099 /18:3679
/19:9518 /20:9996 /21:7524 /22:10384 /23:11915 /24:77671
/25:219 /26:222 /27:163 /28:24 /29:15 /30:66
/31:0 /32:10
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 741 962 SAVVIS Communications Corpora
18566 708 725 Covad Communications
7018 556 1437 AT&T
6197 539 710 BellSouth Network Solutions,
3356 500 892 Level 3 Communications, LLC
702 396 648 UUNET - Commercial IP service
6198 380 511 BellSouth Network Solutions,
1239 374 937 Sprint
701 367 1300 UUNET Technologies, Inc.
27364 364 377 Armstrong Cable Services
5668 333 380 Century Telephone
9583 333 487 Satyam Infoway Ltd.,
2548 331 550 Business Internet, Inc.
4766 316 497 Korea Internet Exchange for "
20115 297 563 Charter Communications
9929 259 327 China Netcom Corp.
6467 255 351 E.Spire Communications, Inc.
14824 254 278 NewSouth Communications Corp.
3320 245 296 Deutsche Telekom AG
13609 244 287 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:829 13:1 15:5 16:2 17:3
20:8 24:763 32:65 33:2 38:74 40:53
44:4 55:1 56:3 57:15 60:3 61:457
62:508 63:1875 64:2027 65:2035 66:2669 67:339
68:500 69:634 70:64 80:563 81:337 82:184
83:99 84:5 128:148 129:176 130:80 131:187
132:23 134:177 135:17 136:178 137:54 138:169
139:35 140:166 141:122 142:118 143:60 144:99
145:41 146:296 147:77 148:417 149:109 150:94
151:71 152:161 153:64 154:2 155:145 156:60
157:63 158:139 159:148 160:52 161:66 162:382
163:76 164:186 165:164 166:105 167:219 168:232
169:111 170:285 171:8 192:5549 193:2801 194:2052
195:1384 196:569 198:3660 199:3112 200:3612 201:8
202:4734 203:5659 204:3130 205:2091 206:2269 207:2492
208:2191 209:3040 210:1451 211:571 212:991 213:1175
214:70 215:30 216:3728 217:974 218:171 219:118
220:233 221:31 222:63
End of report
