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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 08 Aug, 2004
Analysis Summary
----------------
BGP routing table entries examined: 143728
Prefixes after maximum aggregation: 85882
Unique aggregates announced to Internet: 69065
Total ASes present in the Internet Routing Table: 17728
Origin-only ASes present in the Internet Routing Table: 15382
Origin ASes announcing only one prefix: 7214
Transit ASes present in the Internet Routing Table: 2346
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: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1308075808
Equivalent to 77 /8s, 247 /16s and 167 /24s
Percentage of available address space announced: 35.3
Percentage of allocated address space announced: 57.0
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 66165
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27491
Total APNIC prefixes after maximum aggregation: 13946
Prefixes being announced from the APNIC address blocks: 25735
Unique aggregates announced from the APNIC address blocks: 14088
APNIC Region origin ASes present in the Internet Routing Table: 2087
APNIC Region origin ASes announcing only one prefix: 628
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: 154971264
Equivalent to 9 /8s, 60 /16s and 172 /24s
Percentage of available APNIC address space announced: 70.7
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: 82286
Total ARIN prefixes after maximum aggregation: 50237
Prefixes being announced from the ARIN address blocks: 63869
Unique aggregates announced from the ARIN address blocks: 22162
ARIN Region origin ASes present in the Internet Routing Table: 9381
ARIN Region origin ASes announcing only one prefix: 3373
ARIN Region transit ASes present in the Internet Routing Table: 919
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 229138080
Equivalent to 13 /8s, 168 /16s and 94 /24s
Percentage of available ARIN address space announced: 68.3
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, 70/7, 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: 18755
Prefixes being announced from the RIPE address blocks: 23341
Unique aggregates announced from the RIPE address blocks: 15505
RIPE Region origin ASes present in the Internet Routing Table: 5710
RIPE Region origin ASes announcing only one prefix: 3080
RIPE Region transit ASes present in the Internet Routing Table: 981
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 168598080
Equivalent to 10 /8s, 12 /16s and 154 /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: 6206
Total LACNIC prefixes after maximum aggregation: 2267
Prefixes being announced from the LACNIC address blocks: 5950
Unique aggregates announced from the LACNIC address blocks: 3604
LACNIC Region origin ASes present in the Internet Routing Table: 385
LACNIC Region origin ASes announcing only one prefix: 112
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: 15487488
Equivalent to 0 /8s, 236 /16s and 82 /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: 1218
Total AfriNIC prefixes after maximum aggregation: 677
Prefixes being announced from the AfriNIC address blocks: 824
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: 4.9
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
1221 819 1184 592 Telstra Pty Ltd
4134 818 4097 153 Data Communications Bureau
4766 548 2897 264 Korea Internet Exchange for "
9583 510 40 106 Satyam Infoway Ltd.,
4755 362 132 51 Videsh Sanchar Nigam Ltd. Aut
9443 355 70 80 Primus Telecommunications
2907 352 1840 326 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 287 274 234 connect.com.au pty ltd
7474 264 268 202 Optus Communications Pty Ltd
17633 238 56 6 ASN for Shandong Provincial N
9942 237 71 130 COMindico Australia
4802 227 25 140 Wantree Development
9800 226 370 64 CHINA UNICOM
9498 222 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 1397 6789 971 AT&T WorldNet Services
701 1290 8425 929 UUNET Technologies, Inc.
6347 950 390 100 SAVVIS Communications Corpora
1239 939 2877 627 Sprint
3356 882 10908 666 Level 3 Communications, LLC
4323 771 621 213 Time Warner Telecom
6197 764 495 309 BellSouth Network Solutions,
18566 739 193 8 Covad Communications
209 612 3429 494 Qwest
721 600 20779 281 DLA Systems Automation Center
20115 568 377 293 Charter Communications
7843 514 677 129 Adelphia Corp.
852 511 1142 399 Telus Advanced Communications
6198 452 395 205 BellSouth Network Solutions,
705 430 163 272 UUNET Technologies, Inc.
7132 428 8013 372 SBC Internet Services
2386 410 534 230 AT&T Data Communications Serv
22773 392 796 64 Cox Communications, Inc. Atla
4355 390 323 101 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 302 2469 239 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 128 18 32 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 351 99 53 Servicios Alestra S.A de C.V
6140 334 137 64 ImpSat
8151 284 390 131 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 188 86 20 Telefonica Del Peru
6505 136 90 94 Global One Communicaoes Ltda
11664 134 11 22 Keytech SA
6503 132 201 90 AVANTEL, S.A.
7303 121 55 19 Telecom Argentina Stet-France
11556 100 63 22 Cable-Wireless Panama
11992 90 9 30 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 32 18 5 RAYA Telecom - Egypt
9129 29 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 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 818 665 Data Communications Bureau
4323 771 558 Time Warner Telecom
6197 764 455 BellSouth Network Solutions,
9583 510 404 Satyam Infoway Ltd.,
7843 514 385 Adelphia Corp.
5668 382 364 Century Telephone
701 1290 361 UUNET Technologies, Inc.
27364 350 331 Armstrong Cable Services
22909 359 329 Comcast Cable Corporation
22773 392 328 Cox Communications, Inc. Atla
6467 354 322 E.Spire Communications, Inc.
721 600 319 DLA Systems Automation Center
1239 939 312 Sprint
4755 362 311 Videsh Sanchar Nigam Ltd. Aut
17676 341 308 XTAGE CORPORATION
9929 333 302 China Netcom Corp.
11172 351 298 Servicios Alestra S.A de C.V
4355 390 289 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
192.43.230.0/24 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 /14:301 /15:533 /16:7937 /17:2133 /18:3733
/19:9651 /20:10093 /21:7487 /22:10391 /23:11973 /24:78568
/25:226 /26:190 /27:113 /28:45 /29:18 /30:65
/31:0 /32:39
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 585 764 BellSouth Network Solutions,
7018 535 1397 AT&T WorldNet Services
3356 500 882 Level 3 Communications, LLC
702 401 645 UUNET - Commercial IP service
701 366 1290 UUNET Technologies, Inc.
1239 365 939 Sprint
9583 357 510 Satyam Infoway Ltd.,
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 265 333 China Netcom Corp.
6467 259 354 E.Spire Communications, Inc.
13609 257 300 Choice One Communications Inc
6517 256 282 Yipes Communications, Inc.
14824 253 277 NewSouth Communications Corp.
3320 249 302 Deutsche Telekom AG
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 57:16 60:6
61:448 62:514 63:1897 64:2198 65:2053 66:2757
67:349 68:533 69:684 70:64 80:536 81:371
82:191 83:126 84:17 128:89 129:167 130:86
131:183 132:23 134:183 135:17 136:176 137:54
138:169 139:35 140:165 141:107 142:118 143:60
144:100 145:42 146:290 147:94 148:389 149:110
150:88 151:70 152:162 153:67 154:2 155:129
156:57 157:67 158:137 159:151 160:54 161:71
162:389 163:78 164:177 165:162 166:111 167:218
168:255 169:113 170:282 171:9 192:5568 193:2846
194:2078 195:1418 196:583 198:3662 199:3256 200:3647
201:11 202:4787 203:5644 204:3131 205:2076 206:2278
207:2508 208:2158 209:3059 210:1408 211:573 212:1004
213:1203 214:86 215:30 216:3789 217:991 218:176
219:127 220:245 221:30 222:131
End of report
