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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 27 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 149136
Prefixes after maximum aggregation: 88327
Unique aggregates announced to Internet: 71509
Total ASes present in the Internet Routing Table: 18314
Origin-only ASes present in the Internet Routing Table: 15912
Origin ASes announcing only one prefix: 7465
Transit ASes present in the Internet Routing Table: 2402
Transit-only ASes present in the Internet Routing Table: 77
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: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1346688360
Equivalent to 80 /8s, 68 /16s and 213 /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: 68801
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29049
Total APNIC prefixes after maximum aggregation: 14373
Prefixes being announced from the APNIC address blocks: 27172
Unique aggregates announced from the APNIC address blocks: 14274
APNIC Region origin ASes present in the Internet Routing Table: 2159
APNIC Region origin ASes announcing only one prefix: 651
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: 165340032
Equivalent to 9 /8s, 218 /16s and 227 /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: 84560
Total ARIN prefixes after maximum aggregation: 51520
Prefixes being announced from the ARIN address blocks: 64674
Unique aggregates announced from the ARIN address blocks: 23237
ARIN Region origin ASes present in the Internet Routing Table: 9638
ARIN Region origin ASes announcing only one prefix: 3473
ARIN Region transit ASes present in the Internet Routing Table: 936
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234294016
Equivalent to 13 /8s, 247 /16s and 11 /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: 27808
Total RIPE prefixes after maximum aggregation: 19370
Prefixes being announced from the RIPE address blocks: 24674
Unique aggregates announced from the RIPE address blocks: 16166
RIPE Region origin ASes present in the Internet Routing Table: 5951
RIPE Region origin ASes announcing only one prefix: 3205
RIPE Region transit ASes present in the Internet Routing Table: 1018
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 174704256
Equivalent to 10 /8s, 105 /16s and 198 /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: 6506
Total LACNIC prefixes after maximum aggregation: 2370
Prefixes being announced from the LACNIC address blocks: 6365
Unique aggregates announced from the LACNIC address blocks: 3822
LACNIC Region origin ASes present in the Internet Routing Table: 399
LACNIC Region origin ASes announcing only one prefix: 116
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: 16354816
Equivalent to 0 /8s, 249 /16s and 142 /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: 1208
Total AfriNIC prefixes after maximum aggregation: 694
Prefixes being announced from the AfriNIC address blocks: 838
Unique aggregates announced from the AfriNIC address blocks: 674
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: 2066688
Equivalent to 0 /8s, 31 /16s and 137 /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 806 1184 579 Telstra Pty Ltd
4766 542 3407 266 Korea Internet Exchange for "
9583 537 41 104 Satyam Infoway Ltd.,
4755 372 132 52 Videsh Sanchar Nigam Ltd. Aut
17676 369 5516 54 XTAGE CORPORATION
9443 359 69 79 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 344 161 33 China Netcom Corp.
17557 320 23 158 Pakistan Telecom
703 317 346 244 UUNET
2764 282 272 230 connect.com.au pty ltd
7474 265 268 197 Optus Communications Pty Ltd
9942 236 72 126 COMindico Australia
4802 234 28 142 Wantree Development
9498 231 82 50 BHARTI BT INTERNET LTD.
4804 230 165 55 Microplex PTY LTD
9800 225 373 68 CHINA UNICOM
7563 220 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 1240 8448 890 UUNET Technologies, Inc.
1239 934 2883 621 Sprint
2386 839 530 604 AT&T Data Communications Serv
6197 813 378 350 BellSouth Network Solutions,
4323 792 637 215 Time Warner Telecom
18566 747 208 6 Covad Communications
721 721 21028 297 DLA Systems Automation Center
3356 644 10956 446 Level 3 Communications, LLC
209 641 3457 505 Qwest
20115 566 427 303 Charter Communications
3561 560 2417 424 Cable & Wireless USA
852 512 1142 398 Telus Advanced Communications
7843 497 709 98 Adelphia Corp.
7132 449 8288 376 SBC Internet Services
705 436 163 275 UUNET Technologies, Inc.
6198 432 347 208 BellSouth Network Solutions,
6478 418 728 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 300 2486 237 Deutsche Telekom AG
8220 281 461 267 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 204 113 182 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 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 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 192 94 20 Telefonica Del Peru
11664 166 12 30 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 135 60 24 Telecom Argentina Stet-France
6503 123 164 84 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
27716 73 9 16 Eveloz
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 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
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 747 741 Covad Communications
4134 856 693 Data Communications Bureau
4323 792 577 Time Warner Telecom
6197 813 463 BellSouth Network Solutions,
9583 537 433 Satyam Infoway Ltd.,
721 721 424 DLA Systems Automation Center
7843 497 399 Adelphia Corp.
27364 412 393 Armstrong Cable Services
5668 404 386 Century Telephone
22773 393 375 Cox Communications, Inc. Atla
6467 402 371 E.Spire Communications, Inc.
701 1240 350 UUNET Technologies, Inc.
22909 406 350 Comcast Cable Corporation
6478 418 325 AT&T Worldnet Services
4755 372 320 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
1239 934 313 Sprint
9929 344 311 China Netcom Corp.
4355 392 293 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 /15:555 /16:8111 /17:2265 /18:3900
/19:9738 /20:10400 /21:7924 /22:10953 /23:12669 /24:81229
/25:237 /26:224 /27:119 /28:63 /29:52 /30:110
/31:0 /32:34
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 732 747 Covad Communications
6197 662 813 BellSouth Network Solutions,
2386 606 839 AT&T Data Communications Serv
7018 578 1430 AT&T WorldNet Services
27364 396 412 Armstrong Cable Services
702 383 631 UUNET - Commercial IP service
1239 375 934 Sprint
9583 375 537 Satyam Infoway Ltd.,
4766 362 542 Korea Internet Exchange for "
5668 351 404 Century Telephone
701 342 1240 UUNET Technologies, Inc.
6198 316 432 BellSouth Network Solutions,
6467 299 402 E.Spire Communications, Inc.
6517 278 302 Yipes Communications, Inc.
20115 276 566 Charter Communications
9929 275 344 China Netcom Corp.
13609 266 309 Choice One Communications Inc
21502 258 261 NUMERICABLE is a cabled netwo
4323 254 792 Time Warner Telecom
3320 245 300 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1435 13:1 15:5 16:2
17:3 20:5 24:744 32:72 33:2 38:80
40:54 44:3 47:2 52:3 55:1 56:3
57:20 60:2 61:602 62:500 63:1831 64:2437
65:2075 66:2465 67:443 68:537 69:753 70:32
72:2 80:511 81:544 82:307 83:188 84:49
128:129 129:165 130:83 131:183 132:34 134:187
135:19 136:187 137:56 138:184 139:41 140:193
141:108 142:123 143:69 144:159 145:42 146:298
147:94 148:327 149:110 150:94 151:65 152:146
153:68 154:2 155:128 156:58 157:65 158:131
159:163 160:61 161:70 162:376 163:79 164:214
165:158 166:119 167:221 168:340 169:121 170:290
171:9 192:5556 193:2913 194:2161 195:1498 196:594
198:3690 199:3299 200:3811 201:23 202:4905 203:5751
204:3459 205:2088 206:2249 207:2557 208:2129 209:2998
210:1528 211:676 212:1131 213:1202 214:129 215:30
216:3688 217:1048 218:176 219:86 220:270 221:65
222:22
End of report
