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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 05 Nov, 2004
Analysis Summary
----------------
BGP routing table entries examined: 150143
Prefixes after maximum aggregation: 88760
Unique aggregates announced to Internet: 71801
Total ASes present in the Internet Routing Table: 18371
Origin-only ASes present in the Internet Routing Table: 15948
Origin ASes announcing only one prefix: 7468
Transit ASes present in the Internet Routing Table: 2423
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 27
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: 15
Number of addresses announced to Internet: 1348206184
Equivalent to 80 /8s, 91 /16s and 254 /24s
Percentage of available address space announced: 36.4
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68986
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29117
Total APNIC prefixes after maximum aggregation: 14391
Prefixes being announced from the APNIC address blocks: 27219
Unique aggregates announced from the APNIC address blocks: 14291
APNIC Region origin ASes present in the Internet Routing Table: 2162
APNIC Region origin ASes announcing only one prefix: 650
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 165873792
Equivalent to 9 /8s, 227 /16s and 8 /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: 85478
Total ARIN prefixes after maximum aggregation: 51909
Prefixes being announced from the ARIN address blocks: 65329
Unique aggregates announced from the ARIN address blocks: 23373
ARIN Region origin ASes present in the Internet Routing Table: 9664
ARIN Region origin ASes announcing only one prefix: 3470
ARIN Region transit ASes present in the Internet Routing Table: 943
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 234604544
Equivalent to 13 /8s, 251 /16s and 200 /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: 27782
Total RIPE prefixes after maximum aggregation: 19408
Prefixes being announced from the RIPE address blocks: 24651
Unique aggregates announced from the RIPE address blocks: 16195
RIPE Region origin ASes present in the Internet Routing Table: 5979
RIPE Region origin ASes announcing only one prefix: 3211
RIPE Region transit ASes present in the Internet Routing Table: 1024
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 175989376
Equivalent to 10 /8s, 125 /16s and 98 /24s
Percentage of available RIPE address space announced: 61.7
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: 6529
Total LACNIC prefixes after maximum aggregation: 2363
Prefixes being announced from the LACNIC address blocks: 6387
Unique aggregates announced from the LACNIC address blocks: 3933
LACNIC Region origin ASes present in the Internet Routing Table: 403
LACNIC Region origin ASes announcing only one prefix: 117
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: 16416000
Equivalent to 0 /8s, 250 /16s and 125 /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: 1232
Total AfriNIC prefixes after maximum aggregation: 689
Prefixes being announced from the AfriNIC address blocks: 857
Unique aggregates announced from the AfriNIC address blocks: 670
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: 4.4
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2069248
Equivalent to 0 /8s, 31 /16s and 147 /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 853 4359 161 Data Communications Bureau
1221 802 1183 575 Telstra Pty Ltd
9583 546 41 103 Satyam Infoway Ltd.,
4766 543 3407 267 Korea Internet Exchange for "
4755 377 133 59 Videsh Sanchar Nigam Ltd. Aut
17676 369 5516 54 XTAGE CORPORATION
2907 354 1857 328 SINET Japan
9443 353 69 79 Primus Telecommunications
9929 344 161 33 China Netcom Corp.
17557 321 23 160 Pakistan Telecom
703 318 346 245 UUNET
2764 284 273 232 connect.com.au pty ltd
7474 264 268 197 Optus Communications Pty Ltd
4802 234 28 142 Wantree Development
9942 233 72 124 COMindico Australia
9498 231 81 53 BHARTI BT INTERNET LTD.
9800 231 380 71 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 1428 6697 996 AT&T WorldNet Services
701 1239 8415 889 UUNET Technologies, Inc.
721 1010 19813 305 DLA Systems Automation Center
1239 923 2881 612 Sprint
2386 848 530 609 AT&T Data Communications Serv
6197 809 378 350 BellSouth Network Solutions,
4323 795 655 217 Time Warner Telecom
18566 749 208 6 Covad Communications
3356 643 10958 446 Level 3 Communications, LLC
209 639 3435 504 Qwest
20115 569 430 305 Charter Communications
3561 560 2417 424 Cable & Wireless USA
852 516 1142 399 Telus Advanced Communications
7843 496 709 93 Adelphia Corp.
7132 445 8288 377 SBC Internet Services
6198 437 377 202 BellSouth Network Solutions,
705 434 163 274 UUNET Technologies, Inc.
6478 424 735 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
702 636 2027 528 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 253 40 3 NUMERICABLE is a cabled netwo
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 206 114 183 Romania Data Systems S.A.
5515 193 842 141 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 160 30 129 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
25186 149 154 105 France Telecom Transpac's Tra
5400 148 207 119 BT Ignite European Backbone
3303 147 610 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 345 139 69 ImpSat
8151 308 455 134 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
11172 208 100 55 Servicios Alestra S.A de C.V
6147 184 94 20 Telefonica Del Peru
11664 163 12 35 Keytech SA
6505 138 90 94 Global One Communicaoes Ltda
7303 135 61 24 Telecom Argentina Stet-France
6503 122 164 83 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
6535 84 7 19 Chilesat Servicios Empresari
11311 84 8 24 Sinectis S.A.
10481 82 32 7 Prima S.A.
4270 80 18 9 Red de Interconexion Universi
14420 80 5 33 ANDINATEL S.A.
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
9129 34 3 4 UUNET Kenya
24835 33 34 7 RAYA Telecom - Egypt
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
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8452 17 20 5 TEDATA
12455 17 4 2 Jambonet Autonomous system
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21280 14 2 3 Swift Global Kenya Ltd.Is an
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 749 743 Covad Communications
721 1010 705 DLA Systems Automation Center
4134 853 692 Data Communications Bureau
4323 795 578 Time Warner Telecom
6197 809 459 BellSouth Network Solutions,
9583 546 443 Satyam Infoway Ltd.,
7843 496 403 Adelphia Corp.
27364 414 395 Armstrong Cable Services
5668 411 393 Century Telephone
22773 399 383 Cox Communications, Inc. Atla
6467 401 371 E.Spire Communications, Inc.
22909 409 351 Comcast Cable Corporation
701 1239 350 UUNET Technologies, Inc.
6478 424 326 AT&T Worldnet Services
4755 377 318 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
1239 923 311 Sprint
9929 344 311 China Netcom Corp.
4355 392 293 EarthLink, Inc.
4766 543 276 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 62.58.1.0/27 13127 AS for the Trans-Eur
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
33507 UNALLOCATED 216.94.118.0/24 701 UUNET Technologies,
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
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 /8:19 /9:3 /10:6 /11:15 /12:61
/13:138 /14:314 /15:555 /16:8108 /17:2276 /18:3921
/19:9789 /20:10375 /21:7962 /22:11016 /23:12687 /24:82036
/25:242 /26:222 /27:124 /28:69 /29:55 /30:116
/31:0 /32:34
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 734 749 Covad Communications
6197 658 809 BellSouth Network Solutions,
2386 613 848 AT&T Data Communications Serv
7018 576 1428 AT&T WorldNet Services
27364 398 414 Armstrong Cable Services
702 389 636 UUNET - Commercial IP service
9583 382 546 Satyam Infoway Ltd.,
1239 367 923 Sprint
4766 363 543 Korea Internet Exchange for "
5668 356 411 Century Telephone
701 346 1239 UUNET Technologies, Inc.
6198 318 437 BellSouth Network Solutions,
6467 301 401 E.Spire Communications, Inc.
6517 281 305 Yipes Communications, Inc.
20115 279 569 Charter Communications
9929 275 344 China Netcom Corp.
13609 266 309 Choice One Communications Inc
4323 255 795 Time Warner Telecom
21502 250 253 NUMERICABLE is a cabled netwo
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1436 13:1 15:5 16:2
17:3 20:5 24:746 32:67 33:2 38:81
40:55 44:3 47:2 52:3 55:1 56:3
57:22 60:3 61:614 62:488 63:1837 64:2446
65:2078 66:2457 67:446 68:536 69:755 70:35
72:2 80:506 81:528 82:290 83:197 84:43
128:126 129:164 130:83 131:185 132:26 134:186
135:26 136:187 137:65 138:184 139:39 140:195
141:108 142:123 143:114 144:158 145:42 146:295
147:95 148:328 149:112 150:95 151:65 152:133
153:68 154:2 155:131 156:58 157:67 158:131
159:163 160:61 161:73 162:379 163:81 164:216
165:157 166:118 167:221 168:338 169:122 170:298
171:9 192:5659 193:2919 194:2168 195:1511 196:587
198:3896 199:3307 200:3813 201:23 202:4936 203:5754
204:3569 205:2076 206:2336 207:2624 208:2123 209:3068
210:1518 211:642 212:1136 213:1217 214:226 215:31
216:3688 217:1054 218:175 219:81 220:272 221:65
222:22
End of report
