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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 08 Nov, 2004
Analysis Summary
----------------
BGP routing table entries examined: 150319
Prefixes after maximum aggregation: 88680
Unique aggregates announced to Internet: 71693
Total ASes present in the Internet Routing Table: 18374
Origin-only ASes present in the Internet Routing Table: 15952
Origin ASes announcing only one prefix: 7463
Transit ASes present in the Internet Routing Table: 2422
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 25
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1358876264
Equivalent to 80 /8s, 254 /16s and 206 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 69188
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29080
Total APNIC prefixes after maximum aggregation: 14336
Prefixes being announced from the APNIC address blocks: 27183
Unique aggregates announced from the APNIC address blocks: 14138
APNIC Region origin ASes present in the Internet Routing Table: 2157
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: 15
Number of APNIC addresses announced to Internet: 165832064
Equivalent to 9 /8s, 226 /16s and 101 /24s
Percentage of available APNIC address space announced: 75.7
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: 85475
Total ARIN prefixes after maximum aggregation: 51849
Prefixes being announced from the ARIN address blocks: 65449
Unique aggregates announced from the ARIN address blocks: 23371
ARIN Region origin ASes present in the Internet Routing Table: 9683
ARIN Region origin ASes announcing only one prefix: 3485
ARIN Region transit ASes present in the Internet Routing Table: 949
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234510080
Equivalent to 13 /8s, 250 /16s and 87 /24s
Percentage of available ARIN address space announced: 69.9
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: 27970
Total RIPE prefixes after maximum aggregation: 19448
Prefixes being announced from the RIPE address blocks: 24724
Unique aggregates announced from the RIPE address blocks: 16220
RIPE Region origin ASes present in the Internet Routing Table: 5970
RIPE Region origin ASes announcing only one prefix: 3196
RIPE Region transit ASes present in the Internet Routing Table: 1022
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 175618432
Equivalent to 10 /8s, 119 /16s and 185 /24s
Percentage of available RIPE address space announced: 61.6
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: 6542
Total LACNIC prefixes after maximum aggregation: 2355
Prefixes being announced from the LACNIC address blocks: 6387
Unique aggregates announced from the LACNIC address blocks: 3936
LACNIC Region origin ASes present in the Internet Routing Table: 400
LACNIC Region origin ASes announcing only one prefix: 114
LACNIC Region transit ASes present in the Internet Routing Table: 78
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 16420352
Equivalent to 0 /8s, 250 /16s and 142 /24s
Percentage of available LACNIC address space announced: 48.9
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1246
Total AfriNIC prefixes after maximum aggregation: 692
Prefixes being announced from the AfriNIC address blocks: 856
Unique aggregates announced from the AfriNIC address blocks: 669
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 20
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2068992
Equivalent to 0 /8s, 31 /16s and 146 /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 856 4407 163 Data Communications Bureau
1221 800 1183 574 Telstra Pty Ltd
9583 549 43 42 Satyam Infoway Ltd.,
4766 545 3408 268 Korea Internet Exchange for "
4755 376 133 58 Videsh Sanchar Nigam Ltd. Aut
17676 369 5516 54 XTAGE CORPORATION
9443 353 69 79 Primus Telecommunications
2907 352 1856 326 SINET Japan
9929 344 161 33 China Netcom Corp.
703 318 346 245 UUNET
17557 316 23 156 Pakistan Telecom
2764 288 273 235 connect.com.au pty ltd
7474 265 268 197 Optus Communications Pty Ltd
4802 234 28 142 Wantree Development
9942 233 72 124 COMindico Australia
9498 230 81 53 BHARTI BT INTERNET LTD.
9800 230 380 70 CHINA UNICOM
7563 227 48 164 Korea Internet Infrastructure
10036 210 19 191 C&M Communication Co. Ltd.
4814 206 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1426 6665 993 AT&T WorldNet Services
701 1236 8415 886 UUNET Technologies, Inc.
721 1020 21016 298 DLA Systems Automation Center
1239 918 2880 607 Sprint
2386 847 530 609 AT&T Data Communications Serv
6197 809 380 351 BellSouth Network Solutions,
4323 796 670 217 Time Warner Telecom
18566 752 208 6 Covad Communications
209 661 3431 505 Qwest
3356 646 10942 444 Level 3 Communications, LLC
20115 570 430 306 Charter Communications
3561 558 2416 422 Cable & Wireless USA
852 523 1142 400 Telus Advanced Communications
7843 497 711 94 Adelphia Corp.
7132 445 8288 377 SBC Internet Services
6198 438 377 202 BellSouth Network Solutions,
705 435 163 275 UUNET Technologies, Inc.
6478 426 738 98 AT&T Worldnet Services
27364 414 36 19 Armstrong Cable Services
5668 411 87 18 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 631 2024 523 UUNET - Commercial IP service
3320 297 2484 234 Deutsche Telekom AG
8220 281 463 267 COLT Internet - International
3301 277 1099 267 TeliaNet Sweden
21502 254 40 3 NUMERICABLE is a cabled netwo
3300 252 167 80 AUCS Communications Services
680 251 2025 239 DFN-IP service G-WiN
3246 219 477 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 743 179 SWIPnet Swedish IP Network
8708 203 115 184 Romania Data Systems S.A.
5515 193 842 141 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 160 30 128 Dynamic Network Technologies,
8866 160 20 7 Bulgarian Telecommunication C
3215 158 940 77 France Telecom Transpac
719 157 288 102 LANLINK autonomous system
3269 149 1259 67 TELECOM ITALIA
5400 148 207 119 BT Ignite European Backbone
25186 148 154 104 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 345 139 69 ImpSat
8151 309 471 134 UniNet S.A. de C.V.
16814 213 13 7 NSS, S.A.
11172 208 100 55 Servicios Alestra S.A de C.V
6147 186 94 20 Telefonica Del Peru
11664 164 12 35 Keytech SA
6505 140 90 94 Global One Communicaoes Ltda
7303 137 62 24 Telecom Argentina Stet-France
6503 122 148 82 AVANTEL, S.A.
11992 101 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 96 48 2 Cable-Wireless Panama
11311 86 8 23 Sinectis S.A.
6535 84 7 19 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
14420 80 5 33 ANDINATEL S.A.
4270 79 18 9 Red de Interconexion Universi
15311 77 23 37 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
11340 71 21 47 Red Universitaria Nacional
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 272 649 230 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 101 297 97 Tertiary Education Network
2905 93 259 65 The Internetworking Company o
20928 52 16 1 Noor Advanced Technologies AS
24835 39 34 7 RAYA Telecom - Egypt
9129 34 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 22 10 19 Johnnic e-Ventures
8452 19 20 5 TEDATA
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
21280 16 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
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 752 746 Covad Communications
721 1020 722 DLA Systems Automation Center
4134 856 693 Data Communications Bureau
4323 796 579 Time Warner Telecom
9583 549 507 Satyam Infoway Ltd.,
6197 809 458 BellSouth Network Solutions,
7843 497 403 Adelphia Corp.
27364 414 395 Armstrong Cable Services
5668 411 393 Century Telephone
22773 399 382 Cox Communications, Inc. Atla
6467 400 370 E.Spire Communications, Inc.
22909 409 351 Comcast Cable Corporation
701 1236 350 UUNET Technologies, Inc.
6478 426 328 AT&T Worldnet Services
4755 376 318 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
1239 918 311 Sprint
9929 344 311 China Netcom Corp.
4355 392 293 EarthLink, Inc.
4766 545 277 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65006 PRIVATE 84.18.32.0/19 33831 *
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
5555 UNALLOCATED 192.156.8.0/24 721 DLA Systems Automati
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
33507 UNALLOCATED 216.94.118.0/24 701 UUNET Technologies,
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
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
172.0.0.0/8 12975 PALTEL Autonomous System
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 /12:61
/13:137 /14:314 /15:553 /16:8108 /17:2267 /18:3924
/19:9788 /20:10386 /21:7967 /22:11029 /23:12685 /24:82164
/25:252 /26:238 /27:134 /28:66 /29:55 /30:113
/31:0 /32:34
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 737 752 Covad Communications
6197 657 809 BellSouth Network Solutions,
2386 612 847 AT&T Data Communications Serv
7018 578 1426 AT&T WorldNet Services
27364 398 414 Armstrong Cable Services
702 386 631 UUNET - Commercial IP service
9583 384 549 Satyam Infoway Ltd.,
4766 365 545 Korea Internet Exchange for "
1239 363 918 Sprint
5668 356 411 Century Telephone
701 343 1236 UUNET Technologies, Inc.
6198 319 438 BellSouth Network Solutions,
6467 300 400 E.Spire Communications, Inc.
6517 281 305 Yipes Communications, Inc.
20115 279 570 Charter Communications
9929 275 344 China Netcom Corp.
13609 266 309 Choice One Communications Inc
14824 259 269 NewSouth Communications Corp.
4323 255 796 Time Warner Telecom
21502 251 254 NUMERICABLE is a cabled netwo
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1433 13:1 15:5 16:2
17:3 20:5 24:747 32:67 33:2 38:81
40:55 44:3 47:2 52:3 55:1 56:3
57:22 60:3 61:613 62:506 63:1850 64:2442
65:2072 66:2468 67:448 68:538 69:763 70:36
72:2 80:518 81:550 82:308 83:196 84:47
128:128 129:165 130:84 131:181 132:25 134:186
135:26 136:187 137:85 138:183 139:33 140:195
141:108 142:127 143:115 144:159 145:42 146:296
147:95 148:329 149:112 150:94 151:62 152:133
153:68 154:2 155:131 156:58 157:68 158:133
159:163 160:61 161:73 162:380 163:79 164:216
165:157 166:119 167:222 168:342 169:123 170:298
171:9 192:5659 193:2918 194:2166 195:1525 196:586
198:3900 199:3307 200:3815 201:23 202:4936 203:5719
204:3570 205:2088 206:2335 207:2624 208:2121 209:3081
210:1518 211:648 212:1138 213:1215 214:222 215:31
216:3685 217:1055 218:176 219:81 220:273 221:65
222:22
End of report
