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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 21 Feb, 2005
Analysis Summary
----------------
BGP routing table entries examined: 156377
Prefixes after maximum aggregation: 91102
Unique aggregates announced to Internet: 75328
Total ASes present in the Internet Routing Table: 19005
Origin-only ASes present in the Internet Routing Table: 16515
Origin ASes announcing only one prefix: 7733
Transit ASes present in the Internet Routing Table: 2490
Transit-only ASes present in the Internet Routing Table: 82
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 23
Prefixes from unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1377207624
Equivalent to 82 /8s, 22 /16s and 133 /24s
Percentage of available address space announced: 37.2
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 72976
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31204
Total APNIC prefixes after maximum aggregation: 14982
Prefixes being announced from the APNIC address blocks: 29253
Unique aggregates announced from the APNIC address blocks: 14900
APNIC Region origin ASes present in the Internet Routing Table: 2209
APNIC Region origin ASes announcing only one prefix: 651
APNIC Region transit ASes present in the Internet Routing Table: 327
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 174103424
Equivalent to 10 /8s, 96 /16s and 155 /24s
Percentage of available APNIC address space announced: 64.6
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7,
220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 87356
Total ARIN prefixes after maximum aggregation: 52565
Prefixes being announced from the ARIN address blocks: 66487
Unique aggregates announced from the ARIN address blocks: 24369
ARIN Region origin ASes present in the Internet Routing Table: 9882
ARIN Region origin ASes announcing only one prefix: 3589
ARIN Region transit ASes present in the Internet Routing Table: 956
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 239365888
Equivalent to 14 /8s, 68 /16s and 111 /24s
Percentage of available ARIN address space announced: 71.3
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, 29696-30719, 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: 29621
Total RIPE prefixes after maximum aggregation: 20430
Prefixes being announced from the RIPE address blocks: 26492
Unique aggregates announced from the RIPE address blocks: 17627
RIPE Region origin ASes present in the Internet Routing Table: 6320
RIPE Region origin ASes announcing only one prefix: 3340
RIPE Region transit ASes present in the Internet Routing Table: 1077
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 192105280
Equivalent to 11 /8s, 115 /16s and 75 /24s
Percentage of available RIPE address space announced: 67.4
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: 6844
Total LACNIC prefixes after maximum aggregation: 2414
Prefixes being announced from the LACNIC address blocks: 6755
Unique aggregates announced from the LACNIC address blocks: 4011
LACNIC Region origin ASes present in the Internet Routing Table: 419
LACNIC Region origin ASes announcing only one prefix: 128
LACNIC Region transit ASes present in the Internet Routing Table: 80
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17509120
Equivalent to 1 /8s, 11 /16s and 43 /24s
Percentage of available LACNIC address space announced: 52.2
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1345
Total AfriNIC prefixes after maximum aggregation: 711
Prefixes being announced from the AfriNIC address blocks: 906
Unique aggregates announced from the AfriNIC address blocks: 715
AfriNIC Region origin ASes present in the Internet Routing Table: 97
AfriNIC Region origin ASes announcing only one prefix: 25
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2177024
Equivalent to 0 /8s, 33 /16s and 56 /24s
Percentage of available AfriNIC address space announced: 13.0
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 885 4712 174 Data Communications Bureau
1221 793 1186 566 Telstra Pty Ltd
9583 593 49 15 Satyam Infoway Ltd.,
4766 590 3415 281 Korea Internet Exchange for "
7545 500 86 69 TPG Internet Pty Ltd
4755 458 241 101 Videsh Sanchar Nigam Ltd. Aut
17676 398 5980 66 XTAGE CORPORATION
9443 374 77 79 Primus Telecommunications
9929 351 165 36 China Netcom Corp.
2907 348 1839 322 SINET Japan
17557 322 24 148 Pakistan Telecom
10036 293 27 269 C&M Communication Co. Ltd.
7474 285 283 207 Optus Communications Pty Ltd
703 273 355 214 UUNET
2764 260 238 208 connect.com.au pty ltd
9498 238 81 54 BHARTI BT INTERNET LTD.
9800 237 383 75 CHINA UNICOM
4808 236 170 128 CHINANET core WAN North
4802 231 28 140 Wantree Development
17974 231 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1471 6602 973 AT&T WorldNet Services
721 1140 21819 317 DLA Systems Automation Center
701 1028 8308 878 UUNET Technologies, Inc.
4323 1027 668 219 Time Warner Telecom
1239 951 2874 656 Sprint
6197 864 379 404 BellSouth Network Solutions,
2386 824 496 612 AT&T Data Communications Serv
18566 767 208 6 Covad Communications
209 646 3466 498 Qwest
3356 593 10852 442 Level 3 Communications, LLC
20115 581 484 302 Charter Communications
3561 562 2372 418 Cable & Wireless USA
852 524 1126 399 Telus Advanced Communications
3602 497 120 93 Sprint Canada, Inc.
6478 496 821 104 AT&T Worldnet Services
174 486 5471 421 PSINet Inc.
22773 472 1090 24 Cox Communications, Inc. Atla
27364 464 43 18 Armstrong Cable Services
6198 463 566 187 BellSouth Network Solutions,
5668 450 91 19 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 607 2022 504 UUNET - Commercial IP service
3320 296 2992 230 Deutsche Telekom AG
3301 289 1112 277 TeliaNet Sweden
8220 277 466 271 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
3246 229 476 223 Song Networks
8708 218 120 197 Romania Data Systems S.A.
13083 217 51 8 Mannesmann Datenverarbeitung
1257 204 708 170 SWIPnet Swedish IP Network
3215 202 1025 80 France Telecom Transpac
5515 187 842 135 Sonera Solution Autonomous Sy
6746 179 47 143 Dynamic Network Technologies,
786 176 1794 176 The JANET IP Service
8866 175 19 21 Bulgarian Telecommunication C
719 163 322 105 LANLINK autonomous system
3269 163 1424 72 TELECOM ITALIA
3300 163 184 84 AUCS Communications Services
25186 141 138 99 France Telecom Transpac's Tra
5400 137 234 121 BT Ignite European Backbone
9051 128 8 33 INCONET Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 361 140 70 ImpSat
8151 335 501 142 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 221 101 55 Servicios Alestra S.A de C.V
6147 189 102 20 Telefonica Del Peru
11664 150 19 24 Keytech SA
7303 146 66 30 Telecom Argentina Stet-France
6505 135 90 91 Global One Communicaoes Ltda
14117 119 7 5 Telefonica del Sur S.A.
6503 117 146 80 AVANTEL, S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 92 52 9 Mega Cable S.A. de C.V.
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 85 7 23 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
5639 81 8 8 Telecommunications Services o
4270 78 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 635 225 The Internet Solution
5536 114 15 18 Internet Egypt Network
2018 90 295 87 Tertiary Education Network
20928 85 16 2 Noor Advanced Technologies AS
2905 84 267 76 The Internetworking Company o
24835 53 34 6 RAYA Telecom - Egypt
8452 39 20 5 TEDATA
6713 35 54 9 Itissalat Al-MAGHRIB
11845 35 9 11 Data Pro Business Online
9129 30 3 2 UUNET Kenya
12455 29 6 7 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 23 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
21280 17 2 3 Swift Global Kenya Ltd.Is an
15706 15 4 2 Sudatel Internet Exchange Aut
21491 15 1 3 UTL On-line is RF broadband I
15808 14 1 1 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1140 823 DLA Systems Automation Center
4323 1027 808 Time Warner Telecom
18566 767 761 Covad Communications
4134 885 711 Data Communications Bureau
9583 593 578 Satyam Infoway Ltd.,
6197 864 460 BellSouth Network Solutions,
22773 472 448 Cox Communications, Inc. Atla
27364 464 446 Armstrong Cable Services
7545 500 431 TPG Internet Pty Ltd
5668 450 431 Century Telephone
3602 497 404 Sprint Canada, Inc.
6478 496 392 AT&T Worldnet Services
4755 458 357 Videsh Sanchar Nigam Ltd. Aut
22909 420 346 Comcast Cable Corporation
6467 369 336 E.Spire Communications, Inc.
17676 398 332 XTAGE CORPORATION
9929 351 315 China Netcom Corp.
4766 590 309 Korea Internet Exchange for "
1239 951 295 Sprint
9443 374 295 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
25695 UNALLOCATED 64.57.112.0/20 5713 Telkom SA Ltd
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
40439 UNALLOCATED 66.194.101.0/24 30439 Memphis Daily News
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
65535 PRIVATE 204.10.155.0/24 33205 KMC Telecom Solution
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
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
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
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
192.172.0.0/19 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
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 /10:8 /11:14 /12:62
/13:147 /14:304 /15:560 /16:8290 /17:2409 /18:4124
/19:10093 /20:10707 /21:8524 /22:11794 /23:13016 /24:85461
/25:292 /26:264 /27:96 /28:47 /29:21 /30:80
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 752 767 Covad Communications
6197 707 864 BellSouth Network Solutions,
7018 647 1471 AT&T WorldNet Services
2386 588 824 AT&T Data Communications Serv
4323 478 1027 Time Warner Telecom
27364 449 464 Armstrong Cable Services
9583 415 593 Satyam Infoway Ltd.,
4766 401 590 Korea Internet Exchange for "
5668 381 450 Century Telephone
1239 370 951 Sprint
702 367 607 UUNET - Commercial IP service
6198 330 463 BellSouth Network Solutions,
10036 293 293 C&M Communication Co. Ltd.
6517 287 309 Yipes Communications, Inc.
6467 277 369 E.Spire Communications, Inc.
9929 276 351 China Netcom Corp.
11456 263 310 Carolina Online, Inc.
13609 255 304 Choice One Communications Inc
25844 245 245 Skadden, Arps, Slate, Meagher
701 241 1028 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1483 13:1 15:9 16:2
17:3 18:4 20:5 24:736 32:65 33:3
38:99 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:3 60:14 61:701 62:521
63:1867 64:2573 65:2086 66:2734 67:518 68:504
69:929 70:63 71:67 72:64 80:541 81:509
82:355 83:269 84:128 85:113 128:138 129:165
130:96 131:278 132:37 133:1 134:142 135:30
136:213 137:63 138:180 139:53 140:191 141:101
142:137 143:125 144:257 145:44 146:283 147:100
148:265 149:162 150:94 151:62 152:110 153:81
154:2 155:143 156:63 157:82 158:152 159:164
160:68 161:59 162:420 163:84 164:228 165:158
166:130 167:226 168:399 169:133 170:314 171:9
192:5678 193:3069 194:2252 195:1577 196:633 198:3845
199:3287 200:3961 201:49 202:5221 203:6043 204:3654
205:2014 206:2313 207:2659 208:2085 209:3128 210:1570
211:787 212:1168 213:1274 214:242 215:31 216:3674
217:1089 218:189 219:117 220:369 221:86 222:82
End of report
