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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 01 Nov, 2004
Analysis Summary
----------------
BGP routing table entries examined: 148962
Prefixes after maximum aggregation: 88339
Unique aggregates announced to Internet: 71594
Total ASes present in the Internet Routing Table: 18325
Origin-only ASes present in the Internet Routing Table: 15913
Origin ASes announcing only one prefix: 7459
Transit ASes present in the Internet Routing Table: 2412
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: 25
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: 1346241928
Equivalent to 80 /8s, 62 /16s and 5 /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: 68620
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28886
Total APNIC prefixes after maximum aggregation: 14359
Prefixes being announced from the APNIC address blocks: 27041
Unique aggregates announced from the APNIC address blocks: 14267
APNIC Region origin ASes present in the Internet Routing Table: 2161
APNIC Region origin ASes announcing only one prefix: 653
APNIC Region transit ASes present in the Internet Routing Table: 337
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 165522304
Equivalent to 9 /8s, 221 /16s and 171 /24s
Percentage of available APNIC address space announced: 75.5
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: 84486
Total ARIN prefixes after maximum aggregation: 51530
Prefixes being announced from the ARIN address blocks: 64683
Unique aggregates announced from the ARIN address blocks: 23294
ARIN Region origin ASes present in the Internet Routing Table: 9635
ARIN Region origin ASes announcing only one prefix: 3468
ARIN Region transit ASes present in the Internet Routing Table: 931
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 234317824
Equivalent to 13 /8s, 247 /16s and 104 /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: 27836
Total RIPE prefixes after maximum aggregation: 19404
Prefixes being announced from the RIPE address blocks: 24709
Unique aggregates announced from the RIPE address blocks: 16212
RIPE Region origin ASes present in the Internet Routing Table: 5961
RIPE Region origin ASes announcing only one prefix: 3204
RIPE Region transit ASes present in the Internet Routing Table: 1021
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 174880640
Equivalent to 10 /8s, 108 /16s and 119 /24s
Percentage of available RIPE address space announced: 61.3
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: 6516
Total LACNIC prefixes after maximum aggregation: 2351
Prefixes being announced from the LACNIC address blocks: 6372
Unique aggregates announced from the LACNIC address blocks: 3861
LACNIC Region origin ASes present in the Internet Routing Table: 397
LACNIC Region origin ASes announcing only one prefix: 114
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16380672
Equivalent to 0 /8s, 249 /16s and 243 /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: 1233
Total AfriNIC prefixes after maximum aggregation: 695
Prefixes being announced from the AfriNIC address blocks: 861
Unique aggregates announced from the AfriNIC address blocks: 670
AfriNIC Region origin ASes present in the Internet Routing Table: 94
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: 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 856 4407 163 Data Communications Bureau
1221 805 1183 579 Telstra Pty Ltd
9583 544 41 105 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
703 318 346 246 UUNET
2764 283 273 231 connect.com.au pty ltd
7474 262 268 195 Optus Communications Pty Ltd
4802 234 28 142 Wantree Development
9942 234 72 125 COMindico Australia
9498 233 82 50 BHARTI BT INTERNET LTD.
9800 231 380 71 CHINA UNICOM
7563 225 48 162 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 1433 6698 996 AT&T WorldNet Services
701 1237 8415 888 UUNET Technologies, Inc.
1239 928 2882 617 Sprint
2386 844 530 607 AT&T Data Communications Serv
6197 809 378 350 BellSouth Network Solutions,
4323 795 653 216 Time Warner Telecom
18566 750 208 6 Covad Communications
721 650 13035 350 DLA Systems Automation Center
209 642 3451 505 Qwest
3356 640 10955 443 Level 3 Communications, LLC
20115 568 430 305 Charter Communications
3561 560 2417 424 Cable & Wireless USA
852 514 1142 398 Telus Advanced Communications
7843 497 709 98 Adelphia Corp.
7132 451 8288 378 SBC Internet Services
705 435 163 275 UUNET Technologies, Inc.
6198 435 377 201 BellSouth Network Solutions,
6478 421 730 95 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
702 633 2011 523 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 345 138 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 164 12 35 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 133 60 24 Telecom Argentina Stet-France
6503 121 164 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
14522 77 5 9 SatNet S.A.
15311 77 23 37 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
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
12455 17 4 2 Jambonet Autonomous system
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
21280 13 2 3 Swift Global Kenya Ltd.Is an
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 750 744 Covad Communications
4134 856 693 Data Communications Bureau
4323 795 579 Time Warner Telecom
6197 809 459 BellSouth Network Solutions,
9583 544 439 Satyam Infoway Ltd.,
7843 497 399 Adelphia Corp.
27364 413 394 Armstrong Cable Services
5668 407 389 Century Telephone
22773 397 380 Cox Communications, Inc. Atla
6467 405 373 E.Spire Communications, Inc.
22909 408 351 Comcast Cable Corporation
701 1237 349 UUNET Technologies, Inc.
6478 421 326 AT&T Worldnet Services
4755 369 316 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
1239 928 311 Sprint
9929 344 311 China Netcom Corp.
721 650 300 DLA Systems Automation Center
4355 392 293 EarthLink, Inc.
6140 345 277 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
158.0.0.0/13 568 DISO-UNRRA
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 /14:312 /15:555 /16:8100 /17:2271 /18:3900
/19:9757 /20:10379 /21:7927 /22:10982 /23:12660 /24:81145
/25:232 /26:220 /27:116 /28:28 /29:28 /30:78
/31:0 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 735 750 Covad Communications
6197 658 809 BellSouth Network Solutions,
2386 611 844 AT&T Data Communications Serv
7018 577 1433 AT&T WorldNet Services
27364 397 413 Armstrong Cable Services
702 386 633 UUNET - Commercial IP service
9583 381 544 Satyam Infoway Ltd.,
1239 370 928 Sprint
4766 362 542 Korea Internet Exchange for "
5668 352 407 Century Telephone
701 342 1237 UUNET Technologies, Inc.
6198 316 435 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 12:1434 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
57:20 60:3 61:606 62:496 63:1833 64:2450
65:2080 66:2449 67:442 68:536 69:755 70:33
72:2 80:503 81:543 82:303 83:193 84:41
128:119 129:164 130:82 131:184 132:33 134:184
135:19 136:187 137:65 138:180 139:38 140:187
141:108 142:123 143:64 144:159 145:42 146:294
147:94 148:313 149:109 150:94 151:65 152:140
153:68 154:2 155:130 156:58 157:67 158:131
159:163 160:61 161:71 162:377 163:78 164:214
165:158 166:119 167:221 168:342 169:121 170:300
171:9 192:5563 193:2913 194:2164 195:1503 196:591
198:3680 199:3288 200:3825 201:23 202:4901 203:5743
204:3464 205:2091 206:2252 207:2556 208:2126 209:3020
210:1499 211:635 212:1136 213:1217 214:129 215:30
216:3684 217:1046 218:175 219:80 220:271 221:65
222:22
End of report
