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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 02 Nov, 2004
Analysis Summary
----------------
BGP routing table entries examined: 149100
Prefixes after maximum aggregation: 88300
Unique aggregates announced to Internet: 71666
Total ASes present in the Internet Routing Table: 18342
Origin-only ASes present in the Internet Routing Table: 15923
Origin ASes announcing only one prefix: 7469
Transit ASes present in the Internet Routing Table: 2419
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: 27
Prefixes from unregistered ASNs in the Routing Table: 10
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1346787944
Equivalent to 80 /8s, 70 /16s and 90 /24s
Percentage of available address space announced: 36.3
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68690
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29029
Total APNIC prefixes after maximum aggregation: 14393
Prefixes being announced from the APNIC address blocks: 27145
Unique aggregates announced from the APNIC address blocks: 14293
APNIC Region origin ASes present in the Internet Routing Table: 2160
APNIC Region origin ASes announcing only one prefix: 651
APNIC Region transit ASes present in the Internet Routing Table: 335
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 165591168
Equivalent to 9 /8s, 222 /16s and 184 /24s
Percentage of available APNIC address space announced: 75.6
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: 84457
Total ARIN prefixes after maximum aggregation: 51471
Prefixes being announced from the ARIN address blocks: 64685
Unique aggregates announced from the ARIN address blocks: 23292
ARIN Region origin ASes present in the Internet Routing Table: 9647
ARIN Region origin ASes announcing only one prefix: 3472
ARIN Region transit ASes present in the Internet Routing Table: 937
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234323712
Equivalent to 13 /8s, 247 /16s and 127 /24s
Percentage of available ARIN address space announced: 69.8
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,
26624-27647,29695-30719, 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: 27858
Total RIPE prefixes after maximum aggregation: 19386
Prefixes being announced from the RIPE address blocks: 24727
Unique aggregates announced from the RIPE address blocks: 16183
RIPE Region origin ASes present in the Internet Routing Table: 5966
RIPE Region origin ASes announcing only one prefix: 3210
RIPE Region transit ASes present in the Internet Routing Table: 1021
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 175155584
Equivalent to 10 /8s, 112 /16s and 169 /24s
Percentage of available RIPE address space announced: 61.4
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: 2359
Prefixes being announced from the LACNIC address blocks: 6377
Unique aggregates announced from the LACNIC address blocks: 3895
LACNIC Region origin ASes present in the Internet Routing Table: 400
LACNIC Region origin ASes announcing only one prefix: 116
LACNIC Region transit ASes present in the Internet Routing Table: 79
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16381184
Equivalent to 0 /8s, 249 /16s and 245 /24s
Percentage of available LACNIC address space announced: 48.8
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1222
Total AfriNIC prefixes after maximum aggregation: 691
Prefixes being announced from the AfriNIC address blocks: 859
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: 2061056
Equivalent to 0 /8s, 31 /16s and 115 /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 855 4391 163 Data Communications Bureau
1221 805 1183 579 Telstra Pty Ltd
9583 545 41 104 Satyam Infoway Ltd.,
4766 542 3407 266 Korea Internet Exchange for "
4755 369 133 53 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
703 319 346 246 UUNET
2764 283 273 231 connect.com.au pty ltd
7474 263 268 196 Optus Communications Pty Ltd
4802 234 28 142 Wantree Development
9942 234 72 125 COMindico Australia
9800 231 380 71 CHINA UNICOM
9498 227 82 50 BHARTI BT INTERNET LTD.
7563 224 48 161 Korea Internet Infrastructure
10036 209 19 190 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 6696 993 AT&T WorldNet Services
701 1235 8415 886 UUNET Technologies, Inc.
1239 925 2881 614 Sprint
2386 845 530 608 AT&T Data Communications Serv
6197 809 378 350 BellSouth Network Solutions,
4323 795 653 216 Time Warner Telecom
18566 749 208 6 Covad Communications
721 718 21016 297 DLA Systems Automation Center
3356 640 10955 443 Level 3 Communications, LLC
209 639 3449 505 Qwest
20115 568 430 305 Charter Communications
3561 560 2417 424 Cable & Wireless USA
852 517 1142 400 Telus Advanced Communications
7843 497 709 98 Adelphia Corp.
7132 451 8288 378 SBC Internet Services
705 436 163 276 UUNET Technologies, Inc.
6198 436 377 201 BellSouth Network Solutions,
6478 416 730 94 AT&T Worldnet Services
27364 413 36 19 Armstrong Cable Services
22909 408 843 57 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 627 2011 519 UUNET - Commercial IP service
3320 297 2485 234 Deutsche Telekom AG
8220 280 461 266 COLT Internet - International
3301 278 1100 268 TeliaNet Sweden
21502 261 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 208 743 180 SWIPnet Swedish IP Network
8708 205 114 183 Romania Data Systems S.A.
5515 193 842 141 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 159 30 128 Dynamic Network Technologies,
3215 158 940 77 France Telecom Transpac
719 157 288 102 LANLINK autonomous system
8866 156 20 7 Bulgarian Telecommunication C
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 346 138 68 ImpSat
8151 308 455 134 UniNet S.A. de C.V.
16814 211 13 7 NSS, S.A.
11172 208 100 55 Servicios Alestra S.A de C.V
6147 182 94 20 Telefonica Del Peru
11664 163 12 35 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 133 60 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.
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
27716 73 9 16 Eveloz
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
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
21491 13 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 749 743 Covad Communications
4134 855 692 Data Communications Bureau
4323 795 579 Time Warner Telecom
6197 809 459 BellSouth Network Solutions,
9583 545 441 Satyam Infoway Ltd.,
721 718 421 DLA Systems Automation Center
7843 497 399 Adelphia Corp.
27364 413 394 Armstrong Cable Services
5668 404 386 Century Telephone
22773 398 381 Cox Communications, Inc. Atla
6467 405 373 E.Spire Communications, Inc.
22909 408 351 Comcast Cable Corporation
701 1235 349 UUNET Technologies, Inc.
6478 416 322 AT&T Worldnet Services
4755 369 316 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
1239 925 311 Sprint
9929 344 311 China Netcom Corp.
4355 392 293 EarthLink, Inc.
6140 346 278 ImpSat
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
26422 UNALLOCATED 196.14.164.0/24 3741 The Internet Solutio
26422 UNALLOCATED 196.23.168.0/24 3741 The Internet Solutio
26422 UNALLOCATED 196.34.165.0/24 3741 The Internet Solutio
26422 UNALLOCATED 196.38.226.0/24 3741 The Internet Solutio
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
/13:137 /14:313 /15:555 /16:8102 /17:2273 /18:3907
/19:9754 /20:10389 /21:7929 /22:10972 /23:12662 /24:81187
/25:241 /26:221 /27:120 /28:60 /29:52 /30:100
/31:0 /32:22
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 612 845 AT&T Data Communications Serv
7018 575 1428 AT&T WorldNet Services
27364 397 413 Armstrong Cable Services
9583 382 545 Satyam Infoway Ltd.,
702 380 627 UUNET - Commercial IP service
1239 369 925 Sprint
4766 362 542 Korea Internet Exchange for "
5668 349 404 Century Telephone
701 342 1235 UUNET Technologies, Inc.
6198 317 436 BellSouth Network Solutions,
6467 303 405 E.Spire Communications, Inc.
6517 282 306 Yipes Communications, Inc.
20115 277 568 Charter Communications
9929 275 344 China Netcom Corp.
13609 266 309 Choice One Communications Inc
21502 258 261 NUMERICABLE is a cabled netwo
4323 256 795 Time Warner Telecom
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1437 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
57:21 60:3 61:605 62:497 63:1832 64:2448
65:2080 66:2447 67:441 68:536 69:751 70:33
72:2 80:502 81:550 82:311 83:195 84:57
128:123 129:164 130:83 131:185 132:26 134:178
135:19 136:144 137:65 138:181 139:39 140:187
141:108 142:123 143:66 144:159 145:42 146:294
147:94 148:328 149:109 150:93 151:65 152:140
153:68 154:2 155:130 156:58 157:67 158:131
159:163 160:61 161:71 162:377 163:80 164:216
165:157 166:119 167:221 168:338 169:121 170:300
171:9 192:5568 193:2918 194:2165 195:1504 196:590
198:3678 199:3295 200:3834 201:23 202:4931 203:5749
204:3459 205:2090 206:2252 207:2557 208:2129 209:3018
210:1500 211:637 212:1125 213:1215 214:129 215:31
216:3683 217:1048 218:175 219:80 220:271 221:65
222:22
End of report
