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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 16 Feb, 2005
Analysis Summary
----------------
BGP routing table entries examined: 155790
Prefixes after maximum aggregation: 90879
Unique aggregates announced to Internet: 74977
Total ASes present in the Internet Routing Table: 18985
Origin-only ASes present in the Internet Routing Table: 16502
Origin ASes announcing only one prefix: 7738
Transit ASes present in the Internet Routing Table: 2483
Transit-only ASes present in the Internet Routing Table: 80
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: 18
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1373040456
Equivalent to 81 /8s, 214 /16s and 239 /24s
Percentage of available address space announced: 37.0
Percentage of allocated address space announced: 58.6
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 72550
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31037
Total APNIC prefixes after maximum aggregation: 14952
Prefixes being announced from the APNIC address blocks: 29097
Unique aggregates announced from the APNIC address blocks: 14811
APNIC Region origin ASes present in the Internet Routing Table: 2207
APNIC Region origin ASes announcing only one prefix: 648
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: 174050432
Equivalent to 10 /8s, 95 /16s and 204 /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: 87033
Total ARIN prefixes after maximum aggregation: 52428
Prefixes being announced from the ARIN address blocks: 66298
Unique aggregates announced from the ARIN address blocks: 24258
ARIN Region origin ASes present in the Internet Routing Table: 9880
ARIN Region origin ASes announcing only one prefix: 3593
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: 239184128
Equivalent to 14 /8s, 65 /16s and 169 /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: 29511
Total RIPE prefixes after maximum aggregation: 20383
Prefixes being announced from the RIPE address blocks: 26368
Unique aggregates announced from the RIPE address blocks: 17488
RIPE Region origin ASes present in the Internet Routing Table: 6307
RIPE Region origin ASes announcing only one prefix: 3343
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: 23
Number of RIPE addresses announced to Internet: 187981888
Equivalent to 11 /8s, 52 /16s and 96 /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: 6839
Total LACNIC prefixes after maximum aggregation: 2408
Prefixes being announced from the LACNIC address blocks: 6731
Unique aggregates announced from the LACNIC address blocks: 3991
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: 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: 17422592
Equivalent to 1 /8s, 9 /16s and 217 /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: 1351
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: 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: 4.6
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 595 48 13 Satyam Infoway Ltd.,
4766 589 3414 280 Korea Internet Exchange for "
4755 453 241 97 Videsh Sanchar Nigam Ltd. Aut
7545 424 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 327 24 150 Pakistan Telecom
10036 293 27 269 C&M Communication Co. Ltd.
7474 287 299 209 Optus Communications Pty Ltd
703 272 339 213 UUNET
2764 262 238 210 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 229 28 138 Wantree Development
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1461 6602 975 AT&T WorldNet Services
721 1156 21859 318 DLA Systems Automation Center
4323 1032 672 221 Time Warner Telecom
701 1029 8309 879 UUNET Technologies, Inc.
1239 953 2880 629 Sprint
6197 862 378 402 BellSouth Network Solutions,
2386 821 511 602 AT&T Data Communications Serv
18566 770 208 6 Covad Communications
209 646 3467 496 Qwest
3356 595 10868 444 Level 3 Communications, LLC
3561 591 2372 418 Cable & Wireless USA
20115 579 483 301 Charter Communications
852 523 1126 398 Telus Advanced Communications
6478 499 822 98 AT&T Worldnet Services
3602 492 120 91 Sprint Canada, Inc.
22773 469 1090 24 Cox Communications, Inc. Atla
6198 464 558 186 BellSouth Network Solutions,
27364 464 43 18 Armstrong Cable Services
5668 445 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 277 466 271 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
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
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 171 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 137 218 121 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 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 189 102 20 Telefonica Del Peru
11664 150 19 24 Keytech SA
7303 149 68 22 Telecom Argentina Stet-France
6505 135 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 268 635 225 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 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 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 1156 838 DLA Systems Automation Center
4323 1032 811 Time Warner Telecom
18566 770 764 Covad Communications
4134 883 711 Data Communications Bureau
9583 595 582 Satyam Infoway Ltd.,
6197 862 460 BellSouth Network Solutions,
27364 464 446 Armstrong Cable Services
22773 469 445 Cox Communications, Inc. Atla
5668 445 428 Century Telephone
6478 499 401 AT&T Worldnet Services
3602 492 401 Sprint Canada, Inc.
4755 453 356 Videsh Sanchar Nigam Ltd. Aut
7545 424 355 TPG Internet Pty Ltd
22909 418 341 Comcast Cable Corporation
6467 367 336 E.Spire Communications, Inc.
17676 396 332 XTAGE CORPORATION
1239 953 324 Sprint
9929 350 315 China Netcom Corp.
4766 589 309 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
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
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 /14:306 /15:561 /16:8301 /17:2407 /18:4101
/19:10080 /20:10692 /21:8466 /22:11746 /23:12950 /24:85086
/25:296 /26:254 /27:101 /28:49 /29:22 /30:80
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 755 770 Covad Communications
6197 707 862 BellSouth Network Solutions,
7018 632 1461 AT&T WorldNet Services
2386 585 821 AT&T Data Communications Serv
4323 478 1032 Time Warner Telecom
27364 449 464 Armstrong Cable Services
9583 417 595 Satyam Infoway Ltd.,
4766 402 589 Korea Internet Exchange for "
5668 379 445 Century Telephone
702 368 610 UUNET - Commercial IP service
1239 367 953 Sprint
6198 332 464 BellSouth Network Solutions,
10036 293 293 C&M Communication Co. Ltd.
6517 286 308 Yipes Communications, Inc.
6467 276 367 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 12:1482 13:1 15:9 16:2
17:3 18:4 20:4 24:738 32:65 33:3
38:95 40:55 44:3 47:2 52:3 55:2
56:3 57:21 59:2 60:14 61:688 62:522
63:1872 64:2590 65:2087 66:2727 67:490 68:500
69:913 70:63 71:2 72:61 80:539 81:510
82:351 83:258 84:128 85:106 128:136 129:166
130:92 131:279 132:37 133:1 134:142 135:30
136:213 137:64 138:179 139:40 140:195 141:101
142:140 143:124 144:254 145:45 146:281 147:100
148:264 149:163 150:95 151:62 152:110 153:79
154:2 155:141 156:70 157:78 158:149 159:164
160:67 161:59 162:393 163:84 164:214 165:158
166:132 167:226 168:389 169:133 170:313 171:9
192:5679 193:3062 194:2249 195:1559 196:634 198:3826
199:3284 200:3973 201:50 202:5197 203:5998 204:3631
205:2011 206:2311 207:2691 208:2095 209:3110 210:1571
211:781 212:1155 213:1260 214:241 215:31 216:3669
217:1086 218:189 219:117 220:362 221:82 222:78
End of report
