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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 26 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 149058
Prefixes after maximum aggregation: 88265
Unique aggregates announced to Internet: 71464
Total ASes present in the Internet Routing Table: 18306
Origin-only ASes present in the Internet Routing Table: 15903
Origin ASes announcing only one prefix: 7463
Transit ASes present in the Internet Routing Table: 2403
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: 27
Prefixes from unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1345923692
Equivalent to 80 /8s, 57 /16s and 42 /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: 68734
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28989
Total APNIC prefixes after maximum aggregation: 14340
Prefixes being announced from the APNIC address blocks: 27123
Unique aggregates announced from the APNIC address blocks: 14260
APNIC Region origin ASes present in the Internet Routing Table: 2154
APNIC Region origin ASes announcing only one prefix: 648
APNIC Region transit ASes present in the Internet Routing Table: 330
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 165218176
Equivalent to 9 /8s, 217 /16s and 7 /24s
Percentage of available APNIC address space announced: 75.4
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: 51488
Prefixes being announced from the ARIN address blocks: 64612
Unique aggregates announced from the ARIN address blocks: 23232
ARIN Region origin ASes present in the Internet Routing Table: 9634
ARIN Region origin ASes announcing only one prefix: 3471
ARIN Region transit ASes present in the Internet Routing Table: 932
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234089216
Equivalent to 13 /8s, 243 /16s and 235 /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: 27860
Total RIPE prefixes after maximum aggregation: 19379
Prefixes being announced from the RIPE address blocks: 24680
Unique aggregates announced from the RIPE address blocks: 16160
RIPE Region origin ASes present in the Internet Routing Table: 5955
RIPE Region origin ASes announcing only one prefix: 3209
RIPE Region transit ASes present in the Internet Routing Table: 1020
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 174610816
Equivalent to 10 /8s, 104 /16s and 89 /24s
Percentage of available RIPE address space announced: 61.2
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: 6513
Total LACNIC prefixes after maximum aggregation: 2364
Prefixes being announced from the LACNIC address blocks: 6362
Unique aggregates announced from the LACNIC address blocks: 3801
LACNIC Region origin ASes present in the Internet Routing Table: 398
LACNIC Region origin ASes announcing only one prefix: 115
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: 16336640
Equivalent to 0 /8s, 249 /16s and 71 /24s
Percentage of available LACNIC address space announced: 48.7
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1205
Total AfriNIC prefixes after maximum aggregation: 694
Prefixes being announced from the AfriNIC address blocks: 843
Unique aggregates announced from the AfriNIC address blocks: 680
AfriNIC Region origin ASes present in the Internet Routing Table: 93
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: 2068224
Equivalent to 0 /8s, 31 /16s and 143 /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 804 1184 577 Telstra Pty Ltd
4766 542 3407 266 Korea Internet Exchange for "
9583 537 41 104 Satyam Infoway Ltd.,
4755 373 133 53 Videsh Sanchar Nigam Ltd. Aut
17676 369 5516 54 XTAGE CORPORATION
9443 359 69 79 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 345 161 33 China Netcom Corp.
17557 319 23 157 Pakistan Telecom
703 317 346 244 UUNET
2764 281 272 229 connect.com.au pty ltd
7474 264 268 197 Optus Communications Pty Ltd
9942 237 73 127 COMindico Australia
4802 234 28 142 Wantree Development
9498 231 50 49 BHARTI BT INTERNET LTD.
4804 229 165 55 Microplex PTY LTD
9800 224 372 67 CHINA UNICOM
7563 218 48 162 Korea Internet Infrastructure
4780 211 225 26 Digital United Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1430 6697 994 AT&T WorldNet Services
701 1241 8434 891 UUNET Technologies, Inc.
1239 935 2883 622 Sprint
2386 841 530 605 AT&T Data Communications Serv
6197 811 378 349 BellSouth Network Solutions,
4323 792 637 215 Time Warner Telecom
18566 746 208 6 Covad Communications
721 720 21028 297 DLA Systems Automation Center
3356 642 10940 443 Level 3 Communications, LLC
209 640 3457 504 Qwest
20115 566 427 303 Charter Communications
3561 558 2417 422 Cable & Wireless USA
852 512 1142 398 Telus Advanced Communications
7843 498 709 98 Adelphia Corp.
7132 446 8272 375 SBC Internet Services
6198 441 504 188 BellSouth Network Solutions,
705 437 163 276 UUNET Technologies, Inc.
6478 415 728 93 AT&T Worldnet Services
27364 412 36 19 Armstrong Cable Services
22909 406 841 56 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 631 2013 522 UUNET - Commercial IP service
3320 301 2486 238 Deutsche Telekom AG
8220 281 461 267 COLT Internet - International
3301 279 1100 269 TeliaNet Sweden
21502 261 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 218 476 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 743 180 SWIPnet Swedish IP Network
8708 206 114 184 Romania Data Systems S.A.
5515 195 842 143 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 159 30 129 Dynamic Network Technologies,
3215 158 940 77 France Telecom Transpac
719 157 288 102 LANLINK autonomous system
8866 155 20 7 Bulgarian Telecommunication C
3269 149 1259 67 TELECOM ITALIA
5400 149 208 120 BT Ignite European Backbone
25186 149 154 105 France Telecom Transpac's Tra
3303 147 610 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 344 138 68 ImpSat
8151 307 439 133 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 185 94 20 Telefonica Del Peru
11664 165 12 30 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 135 60 24 Telecom Argentina Stet-France
6503 122 163 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 85 7 19 Chilesat Servicios Empresari
11311 84 8 24 Sinectis S.A.
10481 81 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 253 631 220 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 93 276 81 The Internetworking Company o
20928 56 16 1 Noor Advanced Technologies AS
9129 33 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
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 746 740 Covad Communications
4134 856 693 Data Communications Bureau
4323 792 577 Time Warner Telecom
6197 811 462 BellSouth Network Solutions,
9583 537 433 Satyam Infoway Ltd.,
721 720 423 DLA Systems Automation Center
7843 498 400 Adelphia Corp.
27364 412 393 Armstrong Cable Services
5668 404 386 Century Telephone
22773 393 375 Cox Communications, Inc. Atla
6467 401 371 E.Spire Communications, Inc.
701 1241 350 UUNET Technologies, Inc.
22909 406 350 Comcast Cable Corporation
6478 415 322 AT&T Worldnet Services
4755 373 320 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
1239 935 313 Sprint
9929 345 312 China Netcom Corp.
4355 390 291 EarthLink, Inc.
9443 359 280 Primus Telecommunications
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
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 /14:312 /15:553 /16:8106 /17:2264 /18:3902
/19:9735 /20:10381 /21:7923 /22:10938 /23:12660 /24:81205
/25:235 /26:223 /27:119 /28:63 /29:51 /30:112
/31:0 /32:35
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 731 746 Covad Communications
6197 660 811 BellSouth Network Solutions,
2386 608 841 AT&T Data Communications Serv
7018 576 1430 AT&T WorldNet Services
27364 396 412 Armstrong Cable Services
702 383 631 UUNET - Commercial IP service
1239 375 935 Sprint
9583 375 537 Satyam Infoway Ltd.,
4766 362 542 Korea Internet Exchange for "
5668 351 404 Century Telephone
701 342 1241 UUNET Technologies, Inc.
6198 316 441 BellSouth Network Solutions,
6467 299 401 E.Spire Communications, Inc.
6517 280 304 Yipes Communications, Inc.
9929 276 345 China Netcom Corp.
20115 276 566 Charter Communications
13609 266 309 Choice One Communications Inc
21502 258 261 NUMERICABLE is a cabled netwo
4323 254 792 Time Warner Telecom
3320 246 301 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1434 13:1 15:5 16:2
17:3 19:1 20:5 24:745 32:72 33:2
38:81 40:54 44:3 47:2 52:3 55:1
56:3 57:20 60:2 61:597 62:495 63:1827
64:2435 65:2071 66:2467 67:442 68:537 69:752
70:31 80:512 81:542 82:310 83:189 84:46
128:127 129:165 130:83 131:182 132:34 134:187
135:19 136:187 137:56 138:183 139:41 140:193
141:108 142:123 143:69 144:159 145:42 146:298
147:94 148:326 149:110 150:94 151:65 152:147
153:68 154:2 155:127 156:58 157:66 158:131
159:163 160:61 161:70 162:376 163:79 164:214
165:158 166:119 167:221 168:339 169:121 170:294
171:9 192:5589 193:2915 194:2164 195:1497 196:599
198:3687 199:3299 200:3818 201:22 202:4901 203:5748
204:3453 205:2083 206:2248 207:2556 208:2125 209:2992
210:1525 211:673 212:1133 213:1198 214:129 215:30
216:3680 217:1046 218:180 219:86 220:270 221:65
222:20
End of report
