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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 12 Aug, 2004
Analysis Summary
----------------
BGP routing table entries examined: 143494
Prefixes after maximum aggregation: 85560
Unique aggregates announced to Internet: 69055
Total ASes present in the Internet Routing Table: 17760
Origin-only ASes present in the Internet Routing Table: 15411
Origin ASes announcing only one prefix: 7230
Transit ASes present in the Internet Routing Table: 2349
Transit-only ASes present in the Internet Routing Table: 73
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: 17
Number of addresses announced to Internet: 1326726944
Equivalent to 79 /8s, 20 /16s and 63 /24s
Percentage of available address space announced: 35.8
Percentage of allocated address space announced: 57.8
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 65862
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27589
Total APNIC prefixes after maximum aggregation: 13875
Prefixes being announced from the APNIC address blocks: 25814
Unique aggregates announced from the APNIC address blocks: 14059
APNIC Region origin ASes present in the Internet Routing Table: 2096
APNIC Region origin ASes announcing only one prefix: 625
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 155739520
Equivalent to 9 /8s, 72 /16s and 101 /24s
Percentage of available APNIC address space announced: 71.1
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: 81919
Total ARIN prefixes after maximum aggregation: 49949
Prefixes being announced from the ARIN address blocks: 63481
Unique aggregates announced from the ARIN address blocks: 22130
ARIN Region origin ASes present in the Internet Routing Table: 9387
ARIN Region origin ASes announcing only one prefix: 3377
ARIN Region transit ASes present in the Internet Routing Table: 917
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 229410208
Equivalent to 13 /8s, 172 /16s and 133 /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: 26513
Total RIPE prefixes after maximum aggregation: 18799
Prefixes being announced from the RIPE address blocks: 23343
Unique aggregates announced from the RIPE address blocks: 15558
RIPE Region origin ASes present in the Internet Routing Table: 5727
RIPE Region origin ASes announcing only one prefix: 3093
RIPE Region transit ASes present in the Internet Routing Table: 987
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 168806464
Equivalent to 10 /8s, 15 /16s and 200 /24s
Percentage of available RIPE address space announced: 59.2
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: 6248
Total LACNIC prefixes after maximum aggregation: 2259
Prefixes being announced from the LACNIC address blocks: 6010
Unique aggregates announced from the LACNIC address blocks: 3620
LACNIC Region origin ASes present in the Internet Routing Table: 387
LACNIC Region origin ASes announcing only one prefix: 114
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: 15491840
Equivalent to 0 /8s, 236 /16s and 99 /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: 1221
Total AfriNIC prefixes after maximum aggregation: 678
Prefixes being announced from the AfriNIC address blocks: 795
Unique aggregates announced from the AfriNIC address blocks: 623
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: 4.8
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1969920
Equivalent to 0 /8s, 30 /16s and 15 /24s
Percentage of available AfriNIC address space announced: 11.7
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 785 1182 567 Telstra Pty Ltd
4766 549 2897 264 Korea Internet Exchange for "
9583 519 40 106 Satyam Infoway Ltd.,
4755 364 133 50 Videsh Sanchar Nigam Ltd. Aut
9929 357 161 32 China Netcom Corp.
9443 355 70 80 Primus Telecommunications
2907 353 1840 327 SINET Japan
17676 342 5100 34 XTAGE CORPORATION
17557 327 23 164 Pakistan Telecom
703 317 342 244 UUNET
2764 289 275 236 connect.com.au pty ltd
7474 263 268 202 Optus Communications Pty Ltd
17633 240 56 6 ASN for Shandong Provincial N
9942 239 71 132 COMindico Australia
9800 226 370 64 CHINA UNICOM
4802 223 25 134 Wantree Development
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 932 UUNET Technologies, Inc.
6347 945 390 100 SAVVIS Communications Corpora
1239 938 2878 626 Sprint
6197 778 524 299 BellSouth Network Solutions,
4323 772 605 212 Time Warner Telecom
18566 739 193 8 Covad Communications
209 613 3429 495 Qwest
721 592 20712 274 DLA Systems Automation Center
20115 568 377 293 Charter Communications
3356 565 10948 436 Level 3 Communications, LLC
7843 515 682 128 Adelphia Corp.
852 511 1142 399 Telus Advanced Communications
6198 452 425 203 BellSouth Network Solutions,
7132 430 8045 372 SBC Internet Services
705 427 163 269 UUNET Technologies, Inc.
2386 410 534 230 AT&T Data Communications Serv
22773 394 764 62 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
702 645 2019 536 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 196 113 176 Romania Data Systems S.A.
3215 182 892 77 France Telecom Transpac
786 177 1794 177 The JANET IP Service
25186 165 155 113 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 143 1195 65 TELECOM ITALIA
8866 134 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 333 137 63 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 134 11 22 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.
11340 67 5 36 Red Universitaria Nacional
14259 67 4 5 GTD Internet S.A.
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
9129 32 3 4 UUNET Kenya
24835 32 18 5 RAYA Telecom - Egypt
6713 26 38 9 Itissalat Al-MAGHRIB
8524 26 2 4 AUCEGYPT Autonomous System
5713 25 125 23 Telkom SA Ltd
14988 25 16 1 Botswana Telecommunications C
16637 25 9 19 Johnnic e-Ventures
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
21280 14 2 3 Swift Global Kenya Ltd.Is an
21491 14 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 945 845 SAVVIS Communications Corpora
18566 739 731 Covad Communications
4134 819 665 Data Communications Bureau
4323 772 560 Time Warner Telecom
6197 778 479 BellSouth Network Solutions,
9583 519 413 Satyam Infoway Ltd.,
7843 515 387 Adelphia Corp.
5668 382 364 Century Telephone
701 1290 358 UUNET Technologies, Inc.
22773 394 332 Cox Communications, Inc. Atla
27364 350 331 Armstrong Cable Services
22909 360 330 Comcast Cable Corporation
9929 357 325 China Netcom Corp.
6467 353 321 E.Spire Communications, Inc.
721 592 318 DLA Systems Automation Center
4755 364 314 Videsh Sanchar Nigam Ltd. Aut
1239 938 312 Sprint
17676 342 308 XTAGE CORPORATION
11172 357 303 Servicios Alestra S.A de C.V
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
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 /8:19 /9:3 /10:6 /11:15 /12:62
/13:129 /14:303 /15:534 /16:7956 /17:2131 /18:3728
/19:9663 /20:10128 /21:7509 /22:10415 /23:11998 /24:78218
/25:227 /26:191 /27:102 /28:43 /29:18 /30:65
/31:0 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 727 945 SAVVIS Communications Corpora
18566 722 739 Covad Communications
6197 596 778 BellSouth Network Solutions,
7018 535 1396 AT&T WorldNet Services
702 401 645 UUNET - Commercial IP service
1239 367 938 Sprint
701 365 1290 UUNET Technologies, Inc.
9583 365 519 Satyam Infoway Ltd.,
4766 357 549 Korea Internet Exchange for "
27364 336 350 Armstrong Cable Services
5668 334 382 Century Telephone
6198 333 452 BellSouth Network Solutions,
20115 301 568 Charter Communications
9929 285 357 China Netcom Corp.
6467 259 353 E.Spire Communications, Inc.
6517 259 286 Yipes Communications, Inc.
13609 258 301 Choice One Communications Inc
14824 253 277 NewSouth Communications Corp.
3320 248 301 Deutsche Telekom AG
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:2 12:836 13:1 15:5 16:2
17:3 20:9 24:731 32:66 33:2 38:78
40:54 44:4 55:1 56:3 57:16 60:6
61:453 62:516 63:1847 64:2290 65:2040 66:2440
67:354 68:536 69:685 70:64 80:533 81:361
82:191 83:122 84:17 128:92 129:172 130:86
131:179 132:23 134:185 135:17 136:175 137:53
138:169 139:35 140:161 141:107 142:119 143:59
144:101 145:42 146:289 147:95 148:390 149:109
150:88 151:70 152:162 153:67 154:2 155:128
156:57 157:69 158:138 159:151 160:55 161:75
162:390 163:79 164:178 165:161 166:113 167:218
168:262 169:114 170:282 171:9 192:5565 193:2854
194:2082 195:1442 196:556 198:3656 199:3245 200:3697
201:9 202:4799 203:5614 204:3127 205:2065 206:2269
207:2497 208:2157 209:3033 210:1436 211:576 212:986
213:1194 214:86 215:31 216:3748 217:984 218:176
219:125 220:247 221:31 222:134
End of report
