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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 11 Aug, 2004
Analysis Summary
----------------
BGP routing table entries examined: 143875
Prefixes after maximum aggregation: 85908
Unique aggregates announced to Internet: 69099
Total ASes present in the Internet Routing Table: 17750
Origin-only ASes present in the Internet Routing Table: 15397
Origin ASes announcing only one prefix: 7224
Transit ASes present in the Internet Routing Table: 2353
Transit-only ASes present in the Internet Routing Table: 75
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: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1309169184
Equivalent to 78 /8s, 8 /16s and 86 /24s
Percentage of available address space announced: 35.3
Percentage of allocated address space announced: 57.1
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 66224
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27563
Total APNIC prefixes after maximum aggregation: 13969
Prefixes being announced from the APNIC address blocks: 25794
Unique aggregates announced from the APNIC address blocks: 14075
APNIC Region origin ASes present in the Internet Routing Table: 2090
APNIC Region origin ASes announcing only one prefix: 625
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: 155106944
Equivalent to 9 /8s, 62 /16s and 190 /24s
Percentage of available APNIC address space announced: 70.8
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: 82318
Total ARIN prefixes after maximum aggregation: 50215
Prefixes being announced from the ARIN address blocks: 63856
Unique aggregates announced from the ARIN address blocks: 22145
ARIN Region origin ASes present in the Internet Routing Table: 9385
ARIN Region origin ASes announcing only one prefix: 3373
ARIN Region transit ASes present in the Internet Routing Table: 923
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 229371808
Equivalent to 13 /8s, 171 /16s and 239 /24s
Percentage of available ARIN address space announced: 68.4
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, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 26524
Total RIPE prefixes after maximum aggregation: 18785
Prefixes being announced from the RIPE address blocks: 23347
Unique aggregates announced from the RIPE address blocks: 15546
RIPE Region origin ASes present in the Internet Routing Table: 5723
RIPE Region origin ASes announcing only one prefix: 3090
RIPE Region transit ASes present in the Internet Routing Table: 983
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 168690752
Equivalent to 10 /8s, 14 /16s and 4 /24s
Percentage of available RIPE address space announced: 59.1
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: 6241
Total LACNIC prefixes after maximum aggregation: 2262
Prefixes being announced from the LACNIC address blocks: 6006
Unique aggregates announced from the LACNIC address blocks: 3612
LACNIC Region origin ASes present in the Internet Routing Table: 388
LACNIC Region origin ASes announcing only one prefix: 115
LACNIC Region transit ASes present in the Internet Routing Table: 75
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15492864
Equivalent to 0 /8s, 236 /16s and 103 /24s
Percentage of available LACNIC address space announced: 46.2
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1224
Total AfriNIC prefixes after maximum aggregation: 677
Prefixes being announced from the AfriNIC address blocks: 823
Unique aggregates announced from the AfriNIC address blocks: 652
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: 14
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1977344
Equivalent to 0 /8s, 30 /16s and 44 /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
4134 819 4129 154 Data Communications Bureau
1221 814 1184 588 Telstra Pty Ltd
4766 548 2897 264 Korea Internet Exchange for "
9583 520 40 106 Satyam Infoway Ltd.,
4755 362 133 50 Videsh Sanchar Nigam Ltd. Aut
9443 355 70 80 Primus Telecommunications
2907 353 1840 327 SINET Japan
17676 342 5100 34 XTAGE CORPORATION
9929 335 161 32 China Netcom Corp.
17557 326 23 162 Pakistan Telecom
703 317 342 244 UUNET
2764 290 275 237 connect.com.au pty ltd
7474 264 268 202 Optus Communications Pty Ltd
9942 239 71 132 COMindico Australia
17633 239 56 6 ASN for Shandong Provincial N
4802 227 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 196 2023 106 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1396 6805 971 AT&T WorldNet Services
701 1290 8425 929 UUNET Technologies, Inc.
6347 951 390 100 SAVVIS Communications Corpora
1239 939 2877 627 Sprint
3356 882 10908 666 Level 3 Communications, LLC
6197 776 496 310 BellSouth Network Solutions,
4323 772 605 212 Time Warner Telecom
18566 739 193 8 Covad Communications
209 612 3429 494 Qwest
721 592 20697 275 DLA Systems Automation Center
20115 568 377 293 Charter Communications
7843 515 678 129 Adelphia Corp.
852 511 1142 399 Telus Advanced Communications
6198 452 395 205 BellSouth Network Solutions,
705 430 163 272 UUNET Technologies, Inc.
7132 429 8045 371 SBC Internet Services
2386 410 534 230 AT&T Data Communications Serv
22773 394 796 65 Cox Communications, Inc. Atla
4355 388 323 99 EarthLink, Inc.
376 384 363 113 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 646 2019 537 UUNET - Commercial IP service
3320 301 2469 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
3246 216 484 213 Song Networks
13083 216 51 8 Mannesmann Datenverarbeitung
5515 199 842 145 Sonera Solution Autonomous Sy
8708 194 113 175 Romania Data Systems S.A.
3215 182 892 77 France Telecom Transpac
786 177 1794 177 The JANET IP Service
25186 173 156 114 France Telecom Transpac's Tra
5400 152 208 123 BT Ignite European Backbone
6746 152 29 129 Dynamic Network Technologies,
719 150 288 102 LANLINK autonomous system
3269 141 1163 64 TELECOM ITALIA
8866 133 15 14 Bulgarian Telecommunication C
3303 130 609 129 Swisscom Ltd
12302 127 18 33 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 357 100 54 Servicios Alestra S.A de C.V
6140 334 137 64 ImpSat
8151 284 390 130 UniNet S.A. de C.V.
16814 207 13 7 NSS, S.A.
6147 188 86 20 Telefonica Del Peru
6503 140 202 85 AVANTEL, S.A.
6505 136 90 94 Global One Communicaoes Ltda
11664 133 11 21 Keytech SA
7303 121 55 19 Telecom Argentina Stet-France
11556 97 60 19 Cable-Wireless Panama
11992 90 9 30 Integrated Systems
14420 82 6 32 ANDINATEL S.A.
6535 81 5 16 Chilesat Servicios Empresari
11311 80 7 18 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.
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 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 92 276 81 The Internetworking Company o
20928 44 16 1 Noor Advanced Technologies AS
11845 40 9 11 Data Pro Business Online
24835 32 18 5 RAYA Telecom - Egypt
9129 31 3 4 UUNET Kenya
14988 29 16 1 Botswana Telecommunications C
6713 26 38 9 Itissalat Al-MAGHRIB
8524 26 2 4 AUCEGYPT Autonomous System
16637 26 9 19 Johnnic e-Ventures
5713 25 125 23 Telkom SA Ltd
12455 22 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
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 951 851 SAVVIS Communications Corpora
18566 739 731 Covad Communications
4134 819 665 Data Communications Bureau
4323 772 560 Time Warner Telecom
6197 776 466 BellSouth Network Solutions,
9583 520 414 Satyam Infoway Ltd.,
7843 515 386 Adelphia Corp.
5668 382 364 Century Telephone
701 1290 361 UUNET Technologies, Inc.
27364 350 331 Armstrong Cable Services
22773 394 329 Cox Communications, Inc. Atla
22909 359 329 Comcast Cable Corporation
6467 353 321 E.Spire Communications, Inc.
721 592 317 DLA Systems Automation Center
1239 939 312 Sprint
4755 362 312 Videsh Sanchar Nigam Ltd. Aut
17676 342 308 XTAGE CORPORATION
11172 357 303 Servicios Alestra S.A de C.V
9929 335 303 China Netcom Corp.
4355 388 289 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
64515 PRIVATE 198.32.67.0/24 4558 Exchange Point Block
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
158.0.0.0/13 721 DLA Systems Automation Center
192.43.230.0/26 4738 South Australian Academic Res
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 WorldNet Services
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 /12:62
/13:128 /14:302 /15:535 /16:7950 /17:2132 /18:3732
/19:9662 /20:10113 /21:7496 /22:10411 /23:12010 /24:78621
/25:224 /26:190 /27:102 /28:45 /29:18 /30:65
/31:0 /32:35
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 730 951 SAVVIS Communications Corpora
18566 722 739 Covad Communications
6197 597 776 BellSouth Network Solutions,
7018 534 1396 AT&T WorldNet Services
3356 500 882 Level 3 Communications, LLC
702 402 646 UUNET - Commercial IP service
701 366 1290 UUNET Technologies, Inc.
9583 366 520 Satyam Infoway Ltd.,
1239 365 939 Sprint
4766 356 548 Korea Internet Exchange for "
27364 336 350 Armstrong Cable Services
5668 334 382 Century Telephone
6198 334 452 BellSouth Network Solutions,
20115 301 568 Charter Communications
9929 266 335 China Netcom Corp.
6467 259 353 E.Spire Communications, Inc.
13609 258 301 Choice One Communications Inc
6517 256 283 Yipes Communications, Inc.
14824 253 277 NewSouth Communications Corp.
3320 248 301 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:2 12:835 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 57:16 60:6
61:453 62:515 63:1895 64:2204 65:2052 66:2762
67:350 68:535 69:682 70:64 80:538 81:358
82:190 83:123 84:17 128:89 129:172 130:86
131:179 132:23 134:185 135:17 136:176 137:54
138:169 139:35 140:161 141:107 142:119 143:59
144:101 145:42 146:289 147:95 148:390 149:110
150:88 151:70 152:162 153:67 154:2 155:128
156:57 157:66 158:137 159:151 160:55 161:75
162:389 163:78 164:176 165:161 166:111 167:218
168:260 169:114 170:283 171:9 192:5574 193:2854
194:2065 195:1443 196:584 198:3658 199:3249 200:3685
201:10 202:4802 203:5640 204:3130 205:2072 206:2268
207:2502 208:2155 209:3060 210:1437 211:574 212:993
213:1192 214:86 215:31 216:3768 217:1003 218:175
219:125 220:246 221:31 222:133
End of report
