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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 19 Aug, 2004
Analysis Summary
----------------
BGP routing table entries examined: 143816
Prefixes after maximum aggregation: 85881
Unique aggregates announced to Internet: 69479
Total ASes present in the Internet Routing Table: 17817
Origin-only ASes present in the Internet Routing Table: 15444
Origin ASes announcing only one prefix: 7257
Transit ASes present in the Internet Routing Table: 2373
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 10
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1329365032
Equivalent to 79 /8s, 60 /16s and 128 /24s
Percentage of available address space announced: 35.9
Percentage of allocated address space announced: 58.0
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 65181
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27763
Total APNIC prefixes after maximum aggregation: 14034
Prefixes being announced from the APNIC address blocks: 25979
Unique aggregates announced from the APNIC address blocks: 14139
APNIC Region origin ASes present in the Internet Routing Table: 2102
APNIC Region origin ASes announcing only one prefix: 618
APNIC Region transit ASes present in the Internet Routing Table: 331
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 157535232
Equivalent to 9 /8s, 99 /16s and 204 /24s
Percentage of available APNIC address space announced: 71.9
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: 81958
Total ARIN prefixes after maximum aggregation: 50095
Prefixes being announced from the ARIN address blocks: 63478
Unique aggregates announced from the ARIN address blocks: 22425
ARIN Region origin ASes present in the Internet Routing Table: 9418
ARIN Region origin ASes announcing only one prefix: 3388
ARIN Region transit ASes present in the Internet Routing Table: 927
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 229553952
Equivalent to 13 /8s, 174 /16s and 183 /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: 26585
Total RIPE prefixes after maximum aggregation: 18824
Prefixes being announced from the RIPE address blocks: 23393
Unique aggregates announced from the RIPE address blocks: 15593
RIPE Region origin ASes present in the Internet Routing Table: 5748
RIPE Region origin ASes announcing only one prefix: 3115
RIPE Region transit ASes present in the Internet Routing Table: 998
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 169425984
Equivalent to 10 /8s, 25 /16s and 60 /24s
Percentage of available RIPE address space announced: 59.4
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: 6275
Total LACNIC prefixes after maximum aggregation: 2249
Prefixes being announced from the LACNIC address blocks: 6028
Unique aggregates announced from the LACNIC address blocks: 3571
LACNIC Region origin ASes present in the Internet Routing Table: 387
LACNIC Region origin ASes announcing only one prefix: 115
LACNIC Region transit ASes present in the Internet Routing Table: 76
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15588608
Equivalent to 0 /8s, 237 /16s and 221 /24s
Percentage of available LACNIC address space announced: 46.5
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1225
Total AfriNIC prefixes after maximum aggregation: 679
Prefixes being announced from the AfriNIC address blocks: 833
Unique aggregates announced from the AfriNIC address blocks: 660
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: 1978112
Equivalent to 0 /8s, 30 /16s and 47 /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 830 4161 155 Data Communications Bureau
1221 813 1184 587 Telstra Pty Ltd
4766 559 2897 265 Korea Internet Exchange for "
9583 524 40 105 Satyam Infoway Ltd.,
4755 368 133 49 Videsh Sanchar Nigam Ltd. Aut
9929 361 161 33 China Netcom Corp.
9443 354 69 80 Primus Telecommunications
2907 353 1840 327 SINET Japan
17676 345 5132 37 XTAGE CORPORATION
17557 327 23 164 Pakistan Telecom
703 317 342 244 UUNET
2764 285 275 233 connect.com.au pty ltd
7474 264 268 201 Optus Communications Pty Ltd
9942 237 73 129 COMindico Australia
17633 232 56 6 ASN for Shandong Provincial N
4802 229 25 138 Wantree Development
9800 225 369 63 CHINA UNICOM
9498 221 49 49 BHARTI BT INTERNET LTD.
10036 202 18 183 C&M Communication Co. Ltd.
4837 198 2246 109 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1396 6787 970 AT&T WorldNet Services
701 1275 8423 918 UUNET Technologies, Inc.
1239 929 2871 620 Sprint
6347 798 373 121 SAVVIS Communications Corpora
4323 778 632 216 Time Warner Telecom
18566 741 193 8 Covad Communications
6197 724 504 299 BellSouth Network Solutions,
209 614 3430 497 Qwest
721 594 20726 272 DLA Systems Automation Center
20115 572 381 296 Charter Communications
3356 565 10919 436 Level 3 Communications, LLC
852 510 1142 398 Telus Advanced Communications
7843 505 685 118 Adelphia Corp.
6198 452 398 205 BellSouth Network Solutions,
7132 432 8045 374 SBC Internet Services
705 430 163 272 UUNET Technologies, Inc.
2386 407 534 229 AT&T Data Communications Serv
22773 400 797 66 Cox Communications, Inc. Atla
4355 388 323 99 EarthLink, Inc.
376 385 363 113 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 649 2020 540 UUNET - Commercial IP service
3320 300 2469 237 Deutsche Telekom AG
3301 282 1098 272 TeliaNet Sweden
8220 275 445 262 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
13083 216 51 8 Mannesmann Datenverarbeitung
3246 215 483 212 Song Networks
1257 214 747 183 SWIPnet Swedish IP Network
8708 203 113 181 Romania Data Systems S.A.
5515 199 842 145 Sonera Solution Autonomous Sy
3215 183 892 77 France Telecom Transpac
786 177 1794 177 The JANET IP Service
25186 164 155 112 France Telecom Transpac's Tra
5400 157 272 128 BT Ignite European Backbone
6746 153 29 130 Dynamic Network Technologies,
719 150 288 102 LANLINK autonomous system
3269 143 1195 65 TELECOM ITALIA
8866 133 15 15 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 358 100 54 Servicios Alestra S.A de C.V
6140 338 137 65 ImpSat
8151 286 392 132 UniNet S.A. de C.V.
16814 207 13 7 NSS, S.A.
6147 187 86 19 Telefonica Del Peru
11664 155 11 24 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
6503 128 203 86 AVANTEL, S.A.
7303 121 55 19 Telecom Argentina Stet-France
11992 90 9 30 Integrated Systems
14420 82 6 32 ANDINATEL S.A.
6535 81 5 16 Chilesat Servicios Empresari
11556 81 41 3 Cable-Wireless Panama
11311 79 7 19 Sinectis S.A.
15311 76 21 36 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
14259 67 4 5 GTD Internet S.A.
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
20928 44 16 1 Noor Advanced Technologies AS
11845 40 9 11 Data Pro Business Online
24835 33 18 6 RAYA Telecom - Egypt
9129 32 3 4 UUNET Kenya
14988 29 16 1 Botswana Telecommunications C
8524 26 2 4 AUCEGYPT Autonomous System
5713 25 125 23 Telkom SA Ltd
6713 25 38 8 Itissalat Al-MAGHRIB
16637 25 10 19 Johnnic e-Ventures
12455 22 4 2 Jambonet Autonomous system
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8346 15 7 14 SONATEL-AS Autonomous System
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
18566 741 733 Covad Communications
6347 798 677 SAVVIS Communications Corpora
4134 830 675 Data Communications Bureau
4323 778 562 Time Warner Telecom
6197 724 425 BellSouth Network Solutions,
9583 524 419 Satyam Infoway Ltd.,
7843 505 387 Adelphia Corp.
5668 382 364 Century Telephone
701 1275 357 UUNET Technologies, Inc.
22773 400 334 Cox Communications, Inc. Atla
27364 350 331 Armstrong Cable Services
9929 361 328 China Netcom Corp.
22909 358 323 Comcast Cable Corporation
721 594 322 DLA Systems Automation Center
4755 368 319 Videsh Sanchar Nigam Ltd. Aut
6467 347 317 E.Spire Communications, Inc.
1239 929 309 Sprint
17676 345 308 XTAGE CORPORATION
11172 358 304 Servicios Alestra S.A de C.V
4766 559 294 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64606 PRIVATE 80.255.192.0/21 2529 Demon Internet
64606 PRIVATE 80.255.200.0/21 2529 Demon Internet
65217 PRIVATE 192.102.236.0/24 217 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
64584 PRIVATE 219.146.176.0/22 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.180.0/22 17633 ASN for Shandong Pro
64584 PRIVATE 222.174.96.0/20 17633 ASN for Shandong Pro
64584 PRIVATE 222.174.112.0/20 17633 ASN for Shandong Pro
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 /8:19 /9:3 /10:6 /11:14 /12:62
/13:131 /14:303 /15:541 /16:7966 /17:2167 /18:3771
/19:9695 /20:10171 /21:7497 /22:10408 /23:12042 /24:78352
/25:235 /26:188 /27:97 /28:36 /29:10 /30:75
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 724 741 Covad Communications
6347 600 798 SAVVIS Communications Corpora
6197 568 724 BellSouth Network Solutions,
7018 537 1396 AT&T WorldNet Services
702 403 649 UUNET - Commercial IP service
4766 367 559 Korea Internet Exchange for "
9583 366 524 Satyam Infoway Ltd.,
701 365 1275 UUNET Technologies, Inc.
1239 364 929 Sprint
27364 336 350 Armstrong Cable Services
5668 334 382 Century Telephone
6198 332 452 BellSouth Network Solutions,
20115 301 572 Charter Communications
9929 289 361 China Netcom Corp.
6517 262 289 Yipes Communications, Inc.
13609 258 301 Choice One Communications Inc
6467 254 347 E.Spire Communications, Inc.
3320 247 300 Deutsche Telekom AG
25844 245 245 Skadden, Arps, Slate, Meagher
14824 242 265 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:2 12:849 13:1 15:5 16:2
17:3 20:9 24:717 32:66 33:2 38:79
40:54 44:4 55:1 56:3 57:16 60:6
61:458 62:506 63:1848 64:2240 65:2042 66:2430
67:353 68:541 69:694 70:64 80:535 81:359
82:195 83:122 84:32 128:95 129:169 130:86
131:180 132:23 134:187 135:17 136:183 137:49
138:169 139:35 140:160 141:106 142:119 143:59
144:100 145:42 146:288 147:93 148:419 149:110
150:88 151:70 152:161 153:68 154:2 155:129
156:58 157:71 158:141 159:148 160:54 161:71
162:389 163:78 164:179 165:161 166:115 167:221
168:263 169:115 170:275 171:9 192:5568 193:2858
194:2081 195:1449 196:592 198:3661 199:3256 200:3672
201:9 202:4809 203:5655 204:3135 205:2067 206:2284
207:2475 208:2155 209:3024 210:1451 211:578 212:990
213:1187 214:93 215:30 216:3766 217:995 218:186
219:122 220:246 221:31 222:130
End of report
