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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 11 Feb, 2005
Analysis Summary
----------------
BGP routing table entries examined: 158183
Prefixes after maximum aggregation: 90707
Unique aggregates announced to Internet: 74475
Total ASes present in the Internet Routing Table: 18961
Origin-only ASes present in the Internet Routing Table: 16485
Origin ASes announcing only one prefix: 7731
Transit ASes present in the Internet Routing Table: 2476
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 19
Prefixes from unregistered ASNs in the Routing Table: 9
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 22
Number of addresses announced to Internet: 1374395084
Equivalent to 81 /8s, 235 /16s and 154 /24s
Percentage of available address space announced: 37.1
Percentage of allocated address space announced: 58.6
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 74578
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30978
Total APNIC prefixes after maximum aggregation: 14934
Prefixes being announced from the APNIC address blocks: 29023
Unique aggregates announced from the APNIC address blocks: 14686
APNIC Region origin ASes present in the Internet Routing Table: 2204
APNIC Region origin ASes announcing only one prefix: 650
APNIC Region transit ASes present in the Internet Routing Table: 325
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 173928192
Equivalent to 10 /8s, 93 /16s and 239 /24s
Percentage of available APNIC address space announced: 64.5
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: 89595
Total ARIN prefixes after maximum aggregation: 52344
Prefixes being announced from the ARIN address blocks: 68714
Unique aggregates announced from the ARIN address blocks: 24036
ARIN Region origin ASes present in the Internet Routing Table: 9868
ARIN Region origin ASes announcing only one prefix: 3593
ARIN Region transit ASes present in the Internet Routing Table: 953
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 240889088
Equivalent to 14 /8s, 91 /16s and 173 /24s
Percentage of available ARIN address space announced: 71.8
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: 29443
Total RIPE prefixes after maximum aggregation: 20309
Prefixes being announced from the RIPE address blocks: 26391
Unique aggregates announced from the RIPE address blocks: 17435
RIPE Region origin ASes present in the Internet Routing Table: 6301
RIPE Region origin ASes announcing only one prefix: 3336
RIPE Region transit ASes present in the Internet Routing Table: 1070
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 187579968
Equivalent to 11 /8s, 46 /16s and 62 /24s
Percentage of available RIPE address space announced: 65.8
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: 6837
Total LACNIC prefixes after maximum aggregation: 2415
Prefixes being announced from the LACNIC address blocks: 6708
Unique aggregates announced from the LACNIC address blocks: 3986
LACNIC Region origin ASes present in the Internet Routing Table: 420
LACNIC Region origin ASes announcing only one prefix: 128
LACNIC Region transit ASes present in the Internet Routing Table: 81
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17395456
Equivalent to 1 /8s, 9 /16s and 111 /24s
Percentage of available LACNIC address space announced: 51.8
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1321
Total AfriNIC prefixes after maximum aggregation: 705
Prefixes being announced from the AfriNIC address blocks: 890
Unique aggregates announced from the AfriNIC address blocks: 714
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 24
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: 12
Number of AfriNIC addresses announced to Internet: 2171136
Equivalent to 0 /8s, 33 /16s and 33 /24s
Percentage of available AfriNIC address space announced: 12.9
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 883 4688 172 Data Communications Bureau
1221 787 1184 562 Telstra Pty Ltd
4766 592 3415 282 Korea Internet Exchange for "
9583 585 48 11 Satyam Infoway Ltd.,
4755 457 241 101 Videsh Sanchar Nigam Ltd. Aut
7545 428 86 69 TPG Internet Pty Ltd
17676 396 5948 64 XTAGE CORPORATION
9443 371 77 79 Primus Telecommunications
9929 350 164 35 China Netcom Corp.
2907 347 1838 322 SINET Japan
17557 321 23 147 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
7474 286 299 208 Optus Communications Pty Ltd
2764 271 238 217 connect.com.au pty ltd
703 269 339 211 UUNET
9800 237 383 75 CHINA UNICOM
4808 236 170 128 CHINANET core WAN North
9498 234 81 53 BHARTI BT INTERNET LTD.
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
4323 2606 672 220 Time Warner Telecom
7018 1463 6606 976 AT&T WorldNet Services
721 1150 21811 329 DLA Systems Automation Center
701 1037 8309 884 UUNET Technologies, Inc.
7015 1011 220 20 AT&T Broadband
1239 947 2880 625 Sprint
6197 859 378 402 BellSouth Network Solutions,
2386 821 505 601 AT&T Data Communications Serv
18566 769 208 6 Covad Communications
209 644 3467 498 Qwest
3356 595 10868 444 Level 3 Communications, LLC
3561 585 2370 415 Cable & Wireless USA
20115 578 481 304 Charter Communications
852 525 1126 399 Telus Advanced Communications
6478 496 821 97 AT&T Worldnet Services
3602 491 120 91 Sprint Canada, Inc.
27364 468 44 18 Armstrong Cable Services
22773 467 1090 24 Cox Communications, Inc. Atla
6198 458 472 204 BellSouth Network Solutions,
7132 441 8411 381 SBC Internet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 615 2022 507 UUNET - Commercial IP service
3320 296 2992 230 Deutsche Telekom AG
3301 290 1112 278 TeliaNet Sweden
8220 277 466 271 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
3246 224 475 219 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 216 120 196 Romania Data Systems S.A.
1257 205 708 171 SWIPnet Swedish IP Network
3215 200 1033 78 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
3300 168 184 84 AUCS Communications Services
8866 167 19 24 Bulgarian Telecommunication C
719 163 322 105 LANLINK autonomous system
3269 161 1392 71 TELECOM ITALIA
25186 141 138 99 France Telecom Transpac's Tra
5400 140 219 124 BT Ignite European Backbone
9051 127 8 33 INCONET Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 360 140 70 ImpSat
8151 338 499 144 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 219 100 55 Servicios Alestra S.A de C.V
6147 188 100 22 Telefonica Del Peru
7303 149 68 22 Telecom Argentina Stet-France
11664 149 19 24 Keytech SA
6505 134 90 91 Global One Communicaoes Ltda
14117 119 7 5 Telefonica del Sur S.A.
6503 118 148 81 AVANTEL, S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 88 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 83 32 7 Prima S.A.
5639 81 8 8 Telecommunications Services o
4270 79 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 268 636 226 The Internet Solution
5536 113 15 17 Internet Egypt Network
2018 90 295 87 Tertiary Education Network
2905 85 267 77 The Internetworking Company o
20928 84 16 2 Noor Advanced Technologies AS
24835 56 34 6 RAYA Telecom - Egypt
8452 38 20 5 TEDATA
6713 35 54 9 Itissalat Al-MAGHRIB
9129 33 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 27 7 4 Jambonet Autonomous system
8524 22 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 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
17148 13 1 7 First National Bank
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7015 1011 991 AT&T Broadband
721 1150 821 DLA Systems Automation Center
18566 769 763 Covad Communications
4134 883 711 Data Communications Bureau
9583 585 574 Satyam Infoway Ltd.,
7018 1463 487 AT&T WorldNet Services
6197 859 457 BellSouth Network Solutions,
27364 468 450 Armstrong Cable Services
22773 467 443 Cox Communications, Inc. Atla
5668 439 422 Century Telephone
3602 491 400 Sprint Canada, Inc.
6478 496 399 AT&T Worldnet Services
7545 428 359 TPG Internet Pty Ltd
22909 422 358 Comcast Cable Corporation
4755 457 356 Videsh Sanchar Nigam Ltd. Aut
6467 367 336 E.Spire Communications, Inc.
17676 396 332 XTAGE CORPORATION
1239 947 322 Sprint
9929 350 315 China Netcom Corp.
4766 592 310 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64513 PRIVATE 149.117.96.0/24 577 Bell Advanced Commun
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.148.0/28 15296 Netera Alliance Inc.
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
172.212.0.0/16 1668 GNN Hosting Service
172.213.0.0/16 1668 GNN Hosting Service
172.214.0.0/16 1668 GNN Hosting Service
172.215.0.0/16 1668 GNN Hosting Service
172.216.0.0/16 1668 GNN Hosting Service
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
192.83.16.0/20 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
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 /10:7 /11:14 /12:62
/13:146 /14:311 /15:566 /16:8302 /17:2406 /18:4094
/19:10085 /20:10719 /21:8560 /22:11929 /23:13122 /24:86974
/25:305 /26:258 /27:112 /28:49 /29:21 /30:80
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
4323 1594 2606 Time Warner Telecom
7015 974 1011 AT&T Broadband
18566 754 769 Covad Communications
6197 704 859 BellSouth Network Solutions,
7018 630 1463 AT&T WorldNet Services
2386 587 821 AT&T Data Communications Serv
27364 453 468 Armstrong Cable Services
9583 411 585 Satyam Infoway Ltd.,
4766 405 592 Korea Internet Exchange for "
5668 374 439 Century Telephone
702 373 615 UUNET - Commercial IP service
1239 368 947 Sprint
6198 331 458 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
6517 284 306 Yipes Communications, Inc.
6467 277 367 E.Spire Communications, Inc.
9929 275 350 China Netcom Corp.
11456 263 310 Carolina Online, Inc.
13609 252 300 Choice One Communications Inc
701 246 1037 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1481 13:1 15:6 16:2
17:3 18:4 20:4 24:1200 32:68 33:3
38:94 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:2 60:16 61:688 62:508
63:1868 64:2716 65:2137 66:3283 67:497 68:497
69:909 70:62 71:2 72:58 80:562 81:507
82:356 83:278 84:127 85:102 128:144 129:166
130:92 131:195 132:37 133:1 134:142 135:30
136:213 137:66 138:180 139:50 140:195 141:101
142:139 143:122 144:251 145:45 146:282 147:98
148:263 149:162 150:95 151:62 152:110 153:73
154:2 155:140 156:69 157:78 158:149 159:164
160:67 161:59 162:417 163:84 164:213 165:157
166:131 167:226 168:497 169:132 170:314 171:9
192:5686 193:3063 194:2263 195:1568 196:621 198:3857
199:3287 200:3954 201:53 202:5176 203:5976 204:3639
205:2014 206:2432 207:2941 208:2088 209:3228 210:1573
211:780 212:1149 213:1257 214:238 215:31 216:3817
217:1100 218:189 219:118 220:352 221:81 222:76
End of report
