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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 05 Aug, 2004
Analysis Summary
----------------
BGP routing table entries examined: 143583
Prefixes after maximum aggregation: 85882
Unique aggregates announced to Internet: 69036
Total ASes present in the Internet Routing Table: 17720
Origin-only ASes present in the Internet Routing Table: 15370
Origin ASes announcing only one prefix: 7192
Transit ASes present in the Internet Routing Table: 2350
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: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1307221728
Equivalent to 77 /8s, 234 /16s and 158 /24s
Percentage of available address space announced: 35.3
Percentage of allocated address space announced: 57.0
Percentage of available address space allocated: 61.8
Total number of prefixes smaller than registry allocations: 66027
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27445
Total APNIC prefixes after maximum aggregation: 13986
Prefixes being announced from the APNIC address blocks: 25693
Unique aggregates announced from the APNIC address blocks: 14102
APNIC Region origin ASes present in the Internet Routing Table: 2090
APNIC Region origin ASes announcing only one prefix: 627
APNIC Region transit ASes present in the Internet Routing Table: 327
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 154309120
Equivalent to 9 /8s, 50 /16s and 146 /24s
Percentage of available APNIC address space announced: 70.4
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: 82192
Total ARIN prefixes after maximum aggregation: 50198
Prefixes being announced from the ARIN address blocks: 63708
Unique aggregates announced from the ARIN address blocks: 22110
ARIN Region origin ASes present in the Internet Routing Table: 9370
ARIN Region origin ASes announcing only one prefix: 3358
ARIN Region transit ASes present in the Internet Routing Table: 923
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 228483872
Equivalent to 13 /8s, 158 /16s and 99 /24s
Percentage of available ARIN address space announced: 68.1
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, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 26523
Total RIPE prefixes after maximum aggregation: 18752
Prefixes being announced from the RIPE address blocks: 23337
Unique aggregates announced from the RIPE address blocks: 15492
RIPE Region origin ASes present in the Internet Routing Table: 5707
RIPE Region origin ASes announcing only one prefix: 3073
RIPE Region transit ASes present in the Internet Routing Table: 984
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 168359168
Equivalent to 10 /8s, 8 /16s and 245 /24s
Percentage of available RIPE address space announced: 59.0
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: 6204
Total LACNIC prefixes after maximum aggregation: 2268
Prefixes being announced from the LACNIC address blocks: 5940
Unique aggregates announced from the LACNIC address blocks: 3585
LACNIC Region origin ASes present in the Internet Routing Table: 387
LACNIC Region origin ASes announcing only one prefix: 113
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: 15471872
Equivalent to 0 /8s, 236 /16s and 21 /24s
Percentage of available LACNIC address space announced: 46.1
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1215
Total AfriNIC prefixes after maximum aggregation: 678
Prefixes being announced from the AfriNIC address blocks: 826
Unique aggregates announced from the AfriNIC address blocks: 653
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 21
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: 15
Number of AfriNIC addresses announced to Internet: 1979392
Equivalent to 0 /8s, 30 /16s and 52 /24s
Percentage of available AfriNIC address space announced: 11.8
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 818 1056 590 Telstra Pty Ltd
4134 815 4096 150 Data Communications Bureau
4766 511 2895 268 Korea Internet Exchange for "
9583 502 40 110 Satyam Infoway Ltd.,
4755 364 133 50 Videsh Sanchar Nigam Ltd. Aut
9443 355 70 80 Primus Telecommunications
2907 353 1840 327 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
9929 333 159 31 China Netcom Corp.
17557 326 23 162 Pakistan Telecom
703 317 342 244 UUNET
2764 287 258 234 connect.com.au pty ltd
7474 266 269 204 Optus Communications Pty Ltd
17633 236 56 6 ASN for Shandong Provincial N
9942 235 71 128 COMindico Australia
4802 226 25 140 Wantree Development
9800 226 370 64 CHINA UNICOM
9498 223 49 52 BHARTI BT INTERNET LTD.
10036 202 18 183 C&M Communication Co. Ltd.
4837 195 2023 106 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1407 6840 976 AT&T
701 1298 8426 934 UUNET Technologies, Inc.
6347 950 390 100 SAVVIS Communications Corpora
1239 939 2875 627 Sprint
3356 883 10924 667 Level 3 Communications, LLC
4323 766 584 209 Time Warner Communications, I
6197 742 495 309 BellSouth Network Solutions,
18566 739 193 8 Covad Communications
209 613 3413 495 Qwest
721 580 20650 261 DLA Systems Automation Center
20115 568 377 293 Charter Communications
7843 514 677 129 Adelphia Corp.
852 511 1142 399 Telus Advanced Communications
7132 487 7905 369 Southwestern Bell Internet Se
6198 450 394 203 BellSouth Network Solutions,
2386 408 533 228 AT&T Data Communications Serv
705 401 138 267 UUNET Technologies, Inc.
22909 396 829 30 Comcast Cable Corporation
22773 393 796 64 Cox Communications, Inc. Atla
4355 391 323 101 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 642 2020 533 UUNET - Commercial IP service
3320 301 2468 238 Deutsche Telekom AG
3301 282 1098 271 TeliaNet Sweden
8220 278 448 265 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 216 747 185 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 196 113 177 Romania Data Systems S.A.
3215 182 892 77 France Telecom Transpac
786 176 1794 176 The JANET IP Service
25186 173 156 114 France Telecom Transpac's Tra
6746 152 29 129 Dynamic Network Technologies,
5400 151 208 122 BT Ignite European Backbone
719 150 288 102 LANLINK autonomous system
3269 138 1131 64 TELECOM ITALIA
3303 130 609 129 Swisscom Ltd
8866 130 15 14 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 350 83 52 Servicios Alestra S.A de C.V
6140 333 137 64 ImpSat
8151 286 391 132 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 187 86 20 Telefonica Del Peru
6503 135 202 91 AVANTEL, S.A.
6505 135 90 93 Global One Communicaoes Ltda
11664 133 11 21 Keytech SA
7303 119 55 18 Telecom Argentina Stet-France
11556 103 65 25 Cable-Wireless Panama
11992 91 9 29 Integrated Systems
14420 82 6 32 ANDINATEL S.A.
6535 81 5 16 Chilesat Servicios Empresari
11311 81 7 19 Sinectis S.A.
15311 75 19 37 Telefonica Empresas
5639 71 8 8 Telecommunications Services o
4270 70 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
11340 68 5 37 Red Universitaria Nacional
10292 67 6 26 TELECOMMUNICATIONS OF JAMAICA
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
11845 42 9 11 Data Pro Business Online
20928 42 16 1 Noor Advanced Technologies AS
24835 33 18 6 RAYA Telecom - Egypt
14988 29 16 1 Botswana Telecommunications C
6713 26 38 9 Itissalat Al-MAGHRIB
8524 26 2 4 AUCEGYPT Autonomous System
9129 26 3 4 UUNET Kenya
16637 26 9 19 Johnnic e-Ventures
5713 25 125 23 Telkom SA Ltd
12455 23 4 2 Jambonet Autonomous system
10798 18 1 12 Standard Bank of South Africa
8346 15 7 14 SONATEL-AS Autonomous System
12258 15 3 10 Vodacom Internet Company
15706 15 4 2 Sudatel Internet Exchange Aut
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 950 850 SAVVIS Communications Corpora
18566 739 731 Covad Communications
4134 815 665 Data Communications Bureau
4323 766 557 Time Warner Communications, I
6197 742 433 BellSouth Network Solutions,
9583 502 392 Satyam Infoway Ltd.,
7843 514 385 Adelphia Corp.
22909 396 366 Comcast Cable Corporation
701 1298 364 UUNET Technologies, Inc.
5668 381 363 Century Telephone
27364 350 331 Armstrong Cable Services
22773 393 329 Cox Communications, Inc. Atla
6467 353 321 E.Spire Communications, Inc.
721 580 319 DLA Systems Automation Center
4755 364 314 Videsh Sanchar Nigam Ltd. Aut
1239 939 312 Sprint
17676 341 308 XTAGE CORPORATION
9929 333 302 China Netcom Corp.
11172 350 298 Servicios Alestra S.A de C.V
4355 391 290 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65217 PRIVATE 128.101.58.0/28 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
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 /14:301 /15:534 /16:7944 /17:2137 /18:3729
/19:9632 /20:10119 /21:7477 /22:10428 /23:11941 /24:78485
/25:225 /26:193 /27:110 /28:37 /29:7 /30:49
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 729 950 SAVVIS Communications Corpora
18566 722 739 Covad Communications
6197 562 742 BellSouth Network Solutions,
7018 539 1407 AT&T
3356 500 883 Level 3 Communications, LLC
702 398 642 UUNET - Commercial IP service
1239 368 939 Sprint
701 366 1298 UUNET Technologies, Inc.
9583 348 502 Satyam Infoway Ltd.,
27364 336 350 Armstrong Cable Services
5668 333 381 Century Telephone
6198 333 450 BellSouth Network Solutions,
4766 317 511 Korea Internet Exchange for "
20115 301 568 Charter Communications
9929 265 333 China Netcom Corp.
6467 258 353 E.Spire Communications, Inc.
13609 257 300 Choice One Communications Inc
14824 253 277 NewSouth Communications Corp.
3320 249 301 Deutsche Telekom AG
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:2 12:833 13:1 15:5 16:2
17:3 20:9 24:733 32:66 33:2 38:78
40:54 44:4 55:1 56:3 57:15 60:5
61:437 62:513 63:1894 64:2166 65:2048 66:2752
67:348 68:511 69:671 70:64 80:537 81:355
82:193 83:124 84:17 128:179 129:171 130:85
131:183 132:23 134:184 135:17 136:176 137:54
138:169 139:35 140:164 141:107 142:119 143:60
144:100 145:42 146:287 147:93 148:418 149:110
150:90 151:70 152:165 153:67 154:2 155:128
156:57 157:65 158:137 159:150 160:54 161:67
162:387 163:79 164:177 165:162 166:111 167:218
168:245 169:114 170:283 171:9 192:5566 193:2837
194:2082 195:1415 196:584 198:3660 199:3226 200:3643
201:10 202:4776 203:5667 204:3133 205:2060 206:2273
207:2503 208:2163 209:3050 210:1413 211:575 212:1008
213:1199 214:86 215:30 216:3773 217:989 218:176
219:127 220:240 221:30 222:129
End of report
