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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 15 Sep, 2004
Analysis Summary
----------------
BGP routing table entries examined: 146736
Prefixes after maximum aggregation: 87310
Unique aggregates announced to Internet: 69631
Total ASes present in the Internet Routing Table: 18030
Origin-only ASes present in the Internet Routing Table: 15668
Origin ASes announcing only one prefix: 7295
Transit ASes present in the Internet Routing Table: 2362
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 22
Prefixes from unregistered ASNs in the Routing Table: 46
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1338817956
Equivalent to 79 /8s, 204 /16s and 189 /24s
Percentage of available address space announced: 36.1
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 67268
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28182
Total APNIC prefixes after maximum aggregation: 14187
Prefixes being announced from the APNIC address blocks: 26433
Unique aggregates announced from the APNIC address blocks: 14191
APNIC Region origin ASes present in the Internet Routing Table: 2139
APNIC Region origin ASes announcing only one prefix: 633
APNIC Region transit ASes present in the Internet Routing Table: 327
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 161800320
Equivalent to 9 /8s, 164 /16s and 224 /24s
Percentage of available APNIC address space announced: 73.8
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: 83810
Total ARIN prefixes after maximum aggregation: 51211
Prefixes being announced from the ARIN address blocks: 64073
Unique aggregates announced from the ARIN address blocks: 22313
ARIN Region origin ASes present in the Internet Routing Table: 9545
ARIN Region origin ASes announcing only one prefix: 3406
ARIN Region transit ASes present in the Internet Routing Table: 928
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 233617152
Equivalent to 13 /8s, 236 /16s and 183 /24s
Percentage of available ARIN address space announced: 69.6
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: 27174
Total RIPE prefixes after maximum aggregation: 18990
Prefixes being announced from the RIPE address blocks: 24021
Unique aggregates announced from the RIPE address blocks: 15817
RIPE Region origin ASes present in the Internet Routing Table: 5803
RIPE Region origin ASes announcing only one prefix: 3117
RIPE Region transit ASes present in the Internet Routing Table: 989
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 170848064
Equivalent to 10 /8s, 46 /16s and 239 /24s
Percentage of available RIPE address space announced: 59.9
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: 2232
Prefixes being announced from the LACNIC address blocks: 6143
Unique aggregates announced from the LACNIC address blocks: 3513
LACNIC Region origin ASes present in the Internet Routing Table: 390
LACNIC Region origin ASes announcing only one prefix: 119
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: 15873280
Equivalent to 0 /8s, 242 /16s and 53 /24s
Percentage of available LACNIC address space announced: 47.3
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1253
Total AfriNIC prefixes after maximum aggregation: 687
Prefixes being announced from the AfriNIC address blocks: 820
Unique aggregates announced from the AfriNIC address blocks: 654
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 20
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 2057472
Equivalent to 0 /8s, 31 /16s and 101 /24s
Percentage of available AfriNIC address space announced: 12.3
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 833 4193 156 Data Communications Bureau
1221 809 1184 582 Telstra Pty Ltd
4766 569 3409 267 Korea Internet Exchange for "
9583 525 41 102 Satyam Infoway Ltd.,
4755 368 133 50 Videsh Sanchar Nigam Ltd. Aut
9443 355 70 81 Primus Telecommunications
2907 352 1840 326 SINET Japan
17676 348 5180 39 XTAGE CORPORATION
9929 347 161 33 China Netcom Corp.
703 310 341 239 UUNET
17557 309 22 153 Pakistan Telecom
2764 286 274 234 connect.com.au pty ltd
7474 273 270 202 Optus Communications Pty Ltd
4802 232 28 142 Wantree Development
9942 232 73 128 COMindico Australia
9800 228 372 66 CHINA UNICOM
9498 225 49 49 BHARTI BT INTERNET LTD.
4837 202 2264 106 chinanet IDC center beijing n
10036 201 18 184 C&M Communication Co. Ltd.
9304 187 160 25 Hutchison Telecom (HK)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1410 6751 971 AT&T WorldNet Services
701 1271 8423 914 UUNET Technologies, Inc.
1239 947 2866 630 Sprint
2386 826 543 589 AT&T Data Communications Serv
4323 778 629 214 Time Warner Telecom
18566 739 208 6 Covad Communications
6197 721 361 346 BellSouth Network Solutions,
721 712 21012 295 DLA Systems Automation Center
209 620 3430 493 Qwest
20115 587 423 297 Charter Communications
3356 583 10970 451 Level 3 Communications, LLC
3561 520 2503 371 Cable & Wireless USA
852 510 1141 397 Telus Advanced Communications
7843 488 674 104 Adelphia Corp.
6198 455 400 210 BellSouth Network Solutions,
7132 436 8157 378 SBC Internet Services
705 429 163 271 UUNET Technologies, Inc.
6347 400 159 95 SAVVIS Communications Corpora
22773 395 960 19 Cox Communications, Inc. Atla
5668 393 87 18 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 634 2031 526 UUNET - Commercial IP service
3320 300 2470 237 Deutsche Telekom AG
3301 281 1098 271 TeliaNet Sweden
8220 277 460 263 COLT Internet - International
21502 268 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 217 475 214 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 213 747 182 SWIPnet Swedish IP Network
8708 203 113 182 Romania Data Systems S.A.
5515 199 842 145 Sonera Solution Autonomous Sy
3215 182 876 77 France Telecom Transpac
786 177 1794 177 The JANET IP Service
719 157 288 102 LANLINK autonomous system
5400 156 209 126 BT Ignite European Backbone
6746 154 29 131 Dynamic Network Technologies,
25186 153 154 109 France Telecom Transpac's Tra
3303 147 610 130 Swisscom Ltd
3269 145 1195 66 TELECOM ITALIA
8866 139 17 20 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 365 138 65 ImpSat
11172 354 83 52 Servicios Alestra S.A de C.V
8151 285 406 131 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
6147 187 86 19 Telefonica Del Peru
11664 154 11 21 Keytech SA
6505 135 90 93 Global One Communicaoes Ltda
6503 134 187 90 AVANTEL, S.A.
7303 122 55 18 Telecom Argentina Stet-France
11992 90 9 31 Integrated Systems
14420 86 6 35 ANDINATEL S.A.
6535 84 5 18 Chilesat Servicios Empresari
10481 81 32 7 Prima S.A.
11556 81 41 3 Cable-Wireless Panama
11311 80 7 20 Sinectis S.A.
5639 77 8 8 Telecommunications Services o
15311 76 21 36 Telefonica Empresas
14117 70 5 4 Telefonica del Sur S.A.
4270 69 18 9 Red de Interconexion Universi
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 114 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 91 276 81 The Internetworking Company o
20928 59 16 1 Noor Advanced Technologies AS
14988 48 16 1 Botswana Telecommunications C
24835 36 34 7 RAYA Telecom - Egypt
9129 33 3 4 UUNET Kenya
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 24 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
21491 16 1 3 UTL On-line is RF broadband I
15706 15 4 2 Sudatel Internet Exchange Aut
8346 14 6 13 SONATEL-AS Autonomous System
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
18566 739 733 Covad Communications
4134 833 677 Data Communications Bureau
4323 778 564 Time Warner Telecom
9583 525 423 Satyam Infoway Ltd.,
721 712 417 DLA Systems Automation Center
7843 488 384 Adelphia Corp.
22773 395 376 Cox Communications, Inc. Atla
6197 721 375 BellSouth Network Solutions,
5668 393 375 Century Telephone
27364 388 369 Armstrong Cable Services
6467 389 359 E.Spire Communications, Inc.
701 1271 357 UUNET Technologies, Inc.
22909 363 327 Comcast Cable Corporation
4755 368 318 Videsh Sanchar Nigam Ltd. Aut
1239 947 317 Sprint
9929 347 314 China Netcom Corp.
17676 348 309 XTAGE CORPORATION
6347 400 305 SAVVIS Communications Corpora
4766 569 302 Korea Internet Exchange for "
11172 354 302 Servicios Alestra S.A de C.V
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 62.241.160.0/19 25346 Pipex Internet UK IS
65115 PRIVATE 64.28.115.0/24 20385 AccessLine Communica
23456 UNALLOCATED 81.86.0.0/16 25346 Pipex Internet UK IS
23456 UNALLOCATED 81.178.0.0/15 25346 Pipex Internet UK IS
64513 PRIVATE 164.78.128.0/17 7610 SINGAPORE ADVANCE RE
64513 PRIVATE 164.78.249.0/24 7610 SINGAPORE ADVANCE RE
64513 PRIVATE 164.78.252.0/24 7610 SINGAPORE ADVANCE RE
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
22750 UNALLOCATED 196.44.64.0/19 3741 The Internet Solutio
22750 UNALLOCATED 196.44.86.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.232.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.234.0/24 2905 The Internetworking
64572 PRIVATE 219.146.96.0/21 17633 ASN for Shandong Pro
64572 PRIVATE 219.146.104.0/21 17633 ASN for Shandong Pro
64573 PRIVATE 219.146.112.0/21 17633 ASN for Shandong Pro
64573 PRIVATE 219.146.120.0/21 17633 ASN for Shandong Pro
64576 PRIVATE 219.146.128.0/21 17633 ASN for Shandong Pro
64576 PRIVATE 219.146.136.0/21 17633 ASN for Shandong Pro
64582 PRIVATE 219.146.144.0/22 17633 ASN for Shandong Pro
64582 PRIVATE 219.146.148.0/22 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.176.0/22 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.180.0/22 17633 ASN for Shandong Pro
64575 PRIVATE 219.146.192.0/22 17633 ASN for Shandong Pro
64575 PRIVATE 219.146.196.0/22 17633 ASN for Shandong Pro
64580 PRIVATE 219.146.208.0/21 17633 ASN for Shandong Pro
64581 PRIVATE 219.146.216.0/21 17633 ASN for Shandong Pro
64585 PRIVATE 219.146.224.0/21 17633 ASN for Shandong Pro
64586 PRIVATE 219.146.232.0/21 17633 ASN for Shandong Pro
64582 PRIVATE 219.147.0.0/24 17633 ASN for Shandong Pro
64572 PRIVATE 222.173.128.0/20 17633 ASN for Shandong Pro
64572 PRIVATE 222.173.144.0/20 17633 ASN for Shandong Pro
64573 PRIVATE 222.173.160.0/20 17633 ASN for Shandong Pro
64573 PRIVATE 222.173.176.0/20 17633 ASN for Shandong Pro
64576 PRIVATE 222.173.192.0/20 17633 ASN for Shandong Pro
64576 PRIVATE 222.173.208.0/20 17633 ASN for Shandong Pro
64582 PRIVATE 222.173.224.0/20 17633 ASN for Shandong Pro
64582 PRIVATE 222.173.240.0/20 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
64575 PRIVATE 222.174.160.0/20 17633 ASN for Shandong Pro
64575 PRIVATE 222.174.176.0/20 17633 ASN for Shandong Pro
64580 PRIVATE 222.174.224.0/19 17633 ASN for Shandong Pro
64581 PRIVATE 222.175.0.0/19 17633 ASN for Shandong Pro
64585 PRIVATE 222.175.32.0/19 17633 ASN for Shandong Pro
64586 PRIVATE 222.175.64.0/19 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 /8:20 /9:3 /10:6 /11:15 /12:63
/13:134 /14:305 /15:540 /16:8042 /17:2209 /18:3834
/19:9785 /20:10315 /21:7759 /22:10658 /23:12305 /24:80029
/25:248 /26:191 /27:103 /28:48 /29:28 /30:65
/31:0 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 724 739 Covad Communications
2386 592 826 AT&T Data Communications Serv
6197 573 721 BellSouth Network Solutions,
7018 555 1410 AT&T WorldNet Services
702 387 634 UUNET - Commercial IP service
1239 373 947 Sprint
4766 372 569 Korea Internet Exchange for "
27364 372 388 Armstrong Cable Services
9583 366 525 Satyam Infoway Ltd.,
701 358 1271 UUNET Technologies, Inc.
5668 343 393 Century Telephone
6198 335 455 BellSouth Network Solutions,
20115 301 587 Charter Communications
6347 297 400 SAVVIS Communications Corpora
6467 287 389 E.Spire Communications, Inc.
9929 278 347 China Netcom Corp.
6517 269 296 Yipes Communications, Inc.
21502 265 268 NUMERICABLE is a cabled netwo
13609 263 306 Choice One Communications Inc
3320 246 300 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:3 12:1404 13:1 15:5 16:2
17:3 20:9 24:726 32:66 33:2 38:80
40:54 44:4 52:3 55:1 56:3 57:17
60:6 61:501 62:488 63:1840 64:2308 65:2070
66:2467 67:388 68:536 69:712 70:69 80:519
81:546 82:315 83:146 84:26 128:110 129:169
130:87 131:188 132:26 134:183 135:17 136:146
137:55 138:170 139:35 140:182 141:106 142:120
143:67 144:155 145:41 146:294 147:94 148:424
149:108 150:87 151:70 152:167 153:68 154:2
155:127 156:58 157:71 158:143 159:160 160:57
161:71 162:388 163:79 164:204 165:159 166:109
167:223 168:292 169:115 170:269 171:9 192:5595
193:2896 194:2127 195:1473 196:580 198:3665 199:3252
200:3714 201:16 202:4843 203:5653 204:3230 205:2084
206:2318 207:2546 208:2091 209:3026 210:1481 211:624
212:1061 213:1186 214:129 215:31 216:3761 217:998
218:191 219:101 220:249 221:37 222:42
End of report
