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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 15 Feb, 2005
Analysis Summary
----------------
BGP routing table entries examined: 155784
Prefixes after maximum aggregation: 90774
Unique aggregates announced to Internet: 74651
Total ASes present in the Internet Routing Table: 18975
Origin-only ASes present in the Internet Routing Table: 16493
Origin ASes announcing only one prefix: 7734
Transit ASes present in the Internet Routing Table: 2482
Transit-only ASes present in the Internet Routing Table: 79
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: 17
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1374808396
Equivalent to 81 /8s, 241 /16s and 233 /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: 72567
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30977
Total APNIC prefixes after maximum aggregation: 14923
Prefixes being announced from the APNIC address blocks: 29034
Unique aggregates announced from the APNIC address blocks: 14685
APNIC Region origin ASes present in the Internet Routing Table: 2208
APNIC Region origin ASes announcing only one prefix: 649
APNIC Region transit ASes present in the Internet Routing Table: 323
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 174057600
Equivalent to 10 /8s, 95 /16s and 232 /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: 87119
Total ARIN prefixes after maximum aggregation: 52366
Prefixes being announced from the ARIN address blocks: 66341
Unique aggregates announced from the ARIN address blocks: 24079
ARIN Region origin ASes present in the Internet Routing Table: 9870
ARIN Region origin ASes announcing only one prefix: 3587
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: 240903680
Equivalent to 14 /8s, 91 /16s and 230 /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: 29505
Total RIPE prefixes after maximum aggregation: 20355
Prefixes being announced from the RIPE address blocks: 26369
Unique aggregates announced from the RIPE address blocks: 17495
RIPE Region origin ASes present in the Internet Routing Table: 6307
RIPE Region origin ASes announcing only one prefix: 3345
RIPE Region transit ASes present in the Internet Routing Table: 1072
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 187914560
Equivalent to 11 /8s, 51 /16s and 89 /24s
Percentage of available RIPE address space announced: 65.9
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: 6815
Total LACNIC prefixes after maximum aggregation: 2422
Prefixes being announced from the LACNIC address blocks: 6715
Unique aggregates announced from the LACNIC address blocks: 3976
LACNIC Region origin ASes present in the Internet Routing Table: 420
LACNIC Region origin ASes announcing only one prefix: 129
LACNIC Region transit ASes present in the Internet Routing Table: 82
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17405952
Equivalent to 1 /8s, 9 /16s and 152 /24s
Percentage of available LACNIC address space announced: 51.9
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1350
Total AfriNIC prefixes after maximum aggregation: 708
Prefixes being announced from the AfriNIC address blocks: 905
Unique aggregates announced from the AfriNIC address blocks: 718
AfriNIC Region origin ASes present in the Internet Routing Table: 96
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: 2172160
Equivalent to 0 /8s, 33 /16s and 37 /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 785 1183 560 Telstra Pty Ltd
9583 589 48 12 Satyam Infoway Ltd.,
4766 588 3414 280 Korea Internet Exchange for "
4755 456 241 100 Videsh Sanchar Nigam Ltd. Aut
17676 396 5948 64 XTAGE CORPORATION
7545 390 85 62 TPG Internet Pty Ltd
9443 371 77 79 Primus Telecommunications
9929 350 164 35 China Netcom Corp.
2907 347 1838 322 SINET Japan
17557 327 24 150 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
7474 287 299 209 Optus Communications Pty Ltd
703 272 339 213 UUNET
2764 263 238 210 connect.com.au pty ltd
9498 237 81 53 BHARTI BT INTERNET LTD.
9800 237 383 75 CHINA UNICOM
4808 236 170 128 CHINANET core WAN North
17974 232 63 12 PT TELEKOMUNIKASI INDONESIA
4802 230 28 139 Wantree Development
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1459 6602 974 AT&T WorldNet Services
721 1151 21842 315 DLA Systems Automation Center
4323 1032 672 221 Time Warner Telecom
701 1025 8308 877 UUNET Technologies, Inc.
1239 955 2880 631 Sprint
6197 861 370 401 BellSouth Network Solutions,
2386 820 511 601 AT&T Data Communications Serv
18566 770 208 6 Covad Communications
209 646 3467 497 Qwest
3356 594 10868 443 Level 3 Communications, LLC
3561 589 2372 418 Cable & Wireless USA
20115 578 481 303 Charter Communications
852 525 1126 399 Telus Advanced Communications
6478 496 822 97 AT&T Worldnet Services
3602 492 120 91 Sprint Canada, Inc.
22773 469 1090 24 Cox Communications, Inc. Atla
27364 468 44 18 Armstrong Cable Services
6198 463 558 186 BellSouth Network Solutions,
5668 442 87 17 Century Telephone
7132 441 8411 381 SBC Internet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 610 2022 507 UUNET - Commercial IP service
3320 296 2992 230 Deutsche Telekom AG
3301 290 1112 278 TeliaNet Sweden
8220 274 466 268 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
3215 226 1025 80 France Telecom Transpac
3246 224 475 219 Song Networks
8708 218 120 197 Romania Data Systems S.A.
13083 217 51 8 Mannesmann Datenverarbeitung
1257 205 708 171 SWIPnet Swedish IP Network
5515 187 842 135 Sonera Solution Autonomous Sy
6746 179 47 143 Dynamic Network Technologies,
786 176 1794 176 The JANET IP Service
8866 170 19 20 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 139 218 123 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 360 140 70 ImpSat
8151 336 501 143 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 220 101 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 116 146 79 AVANTEL, S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 89 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 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 269 636 226 The Internet Solution
5536 114 15 18 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
11845 35 9 11 Data Pro Business Online
9129 32 3 2 UUNET Kenya
12455 30 7 4 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 22 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 16 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 1151 836 DLA Systems Automation Center
4323 1032 811 Time Warner Telecom
18566 770 764 Covad Communications
4134 883 711 Data Communications Bureau
9583 589 577 Satyam Infoway Ltd.,
6197 861 460 BellSouth Network Solutions,
27364 468 450 Armstrong Cable Services
22773 469 445 Cox Communications, Inc. Atla
5668 442 425 Century Telephone
3602 492 401 Sprint Canada, Inc.
6478 496 399 AT&T Worldnet Services
4755 456 356 Videsh Sanchar Nigam Ltd. Aut
22909 418 341 Comcast Cable Corporation
6467 366 335 E.Spire Communications, Inc.
17676 396 332 XTAGE CORPORATION
7545 390 328 TPG Internet Pty Ltd
1239 955 324 Sprint
9929 350 315 China Netcom Corp.
4766 588 308 Korea Internet Exchange for "
9443 371 292 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
40439 UNALLOCATED 66.194.101.0/24 30439 Memphis Daily News
64513 PRIVATE 149.117.96.0/24 577 Bell Advanced Commun
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.
65004 PRIVATE 200.0.113.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.0.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.1.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.2.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.3.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.4.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.5.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.6.0/24 28477 Universidad Autonoma
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 /10:7 /11:14 /12:62
/13:146 /14:310 /15:566 /16:8304 /17:2405 /18:4096
/19:10089 /20:10716 /21:8459 /22:11729 /23:12934 /24:85068
/25:297 /26:256 /27:108 /28:49 /29:22 /30:84
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 755 770 Covad Communications
6197 706 861 BellSouth Network Solutions,
7018 630 1459 AT&T WorldNet Services
2386 584 820 AT&T Data Communications Serv
4323 478 1032 Time Warner Telecom
27364 453 468 Armstrong Cable Services
9583 415 589 Satyam Infoway Ltd.,
4766 401 588 Korea Internet Exchange for "
5668 377 442 Century Telephone
1239 369 955 Sprint
702 368 610 UUNET - Commercial IP service
6198 331 463 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
6517 285 307 Yipes Communications, Inc.
6467 275 366 E.Spire Communications, Inc.
9929 275 350 China Netcom Corp.
11456 263 310 Carolina Online, Inc.
13609 256 305 Choice One Communications Inc
25844 245 245 Skadden, Arps, Slate, Meagher
3320 241 296 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1483 13:1 15:9 16:2
17:3 18:4 20:4 24:739 32:64 33:3
38:94 40:55 44:3 47:2 52:3 55:2
56:3 57:21 59:2 60:14 61:688 62:523
63:1870 64:2586 65:2087 66:2725 67:497 68:500
69:911 70:63 71:2 72:60 80:555 81:513
82:348 83:254 84:122 85:106 128:137 129:166
130:92 131:279 132:37 133:1 134:142 135:30
136:213 137:64 138:179 139:50 140:195 141:101
142:140 143:123 144:253 145:45 146:281 147:99
148:263 149:163 150:95 151:62 152:110 153:79
154:2 155:141 156:69 157:78 158:149 159:163
160:67 161:59 162:418 163:85 164:214 165:157
166:132 167:226 168:388 169:132 170:314 171:9
192:5680 193:3057 194:2247 195:1567 196:634 198:3856
199:3287 200:3963 201:50 202:5176 203:5968 204:3632
205:2018 206:2309 207:2675 208:2097 209:3107 210:1575
211:779 212:1150 213:1253 214:239 215:31 216:3667
217:1094 218:189 219:117 220:356 221:82 222:77
End of report
