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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 19 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 148816
Prefixes after maximum aggregation: 88075
Unique aggregates announced to Internet: 70700
Total ASes present in the Internet Routing Table: 18267
Origin-only ASes present in the Internet Routing Table: 15859
Origin ASes announcing only one prefix: 7439
Transit ASes present in the Internet Routing Table: 2408
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 26
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: 1346108268
Equivalent to 80 /8s, 59 /16s and 251 /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: 68494
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28925
Total APNIC prefixes after maximum aggregation: 14311
Prefixes being announced from the APNIC address blocks: 27078
Unique aggregates announced from the APNIC address blocks: 14268
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: 326
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 164813696
Equivalent to 9 /8s, 210 /16s and 219 /24s
Percentage of available APNIC address space announced: 75.2
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: 84445
Total ARIN prefixes after maximum aggregation: 51444
Prefixes being announced from the ARIN address blocks: 64594
Unique aggregates announced from the ARIN address blocks: 23190
ARIN Region origin ASes present in the Internet Routing Table: 9629
ARIN Region origin ASes announcing only one prefix: 3464
ARIN Region transit ASes present in the Internet Routing Table: 933
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234020352
Equivalent to 13 /8s, 242 /16s and 222 /24s
Percentage of available ARIN address space announced: 69.7
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: 27683
Total RIPE prefixes after maximum aggregation: 19266
Prefixes being announced from the RIPE address blocks: 24511
Unique aggregates announced from the RIPE address blocks: 15474
RIPE Region origin ASes present in the Internet Routing Table: 5925
RIPE Region origin ASes announcing only one prefix: 3194
RIPE Region transit ASes present in the Internet Routing Table: 1024
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 175243392
Equivalent to 10 /8s, 114 /16s and 0 /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: 6485
Total LACNIC prefixes after maximum aggregation: 2364
Prefixes being announced from the LACNIC address blocks: 6318
Unique aggregates announced from the LACNIC address blocks: 3768
LACNIC Region origin ASes present in the Internet Routing Table: 395
LACNIC Region origin ASes announcing only one prefix: 113
LACNIC Region transit ASes present in the Internet Routing Table: 80
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16290816
Equivalent to 0 /8s, 248 /16s and 148 /24s
Percentage of available LACNIC address space announced: 48.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1273
Total AfriNIC prefixes after maximum aggregation: 690
Prefixes being announced from the AfriNIC address blocks: 892
Unique aggregates announced from the AfriNIC address blocks: 682
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: 4.7
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2069760
Equivalent to 0 /8s, 31 /16s and 149 /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 858 4407 163 Data Communications Bureau
1221 805 1183 579 Telstra Pty Ltd
4766 547 3407 266 Korea Internet Exchange for "
9583 535 41 104 Satyam Infoway Ltd.,
4755 373 133 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 345 161 33 China Netcom Corp.
17557 317 23 158 Pakistan Telecom
703 311 342 240 UUNET
2764 284 272 232 connect.com.au pty ltd
7474 262 268 197 Optus Communications Pty Ltd
9942 235 73 127 COMindico Australia
4802 233 28 141 Wantree Development
9498 230 50 49 BHARTI BT INTERNET LTD.
9800 230 374 67 CHINA UNICOM
7563 213 48 163 Korea Internet Infrastructure
4814 206 232 6 China Telecom (Group)
10036 204 19 185 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1418 6743 986 AT&T WorldNet Services
701 1253 8434 901 UUNET Technologies, Inc.
1239 936 2867 623 Sprint
2386 846 532 609 AT&T Data Communications Serv
6197 810 370 349 BellSouth Network Solutions,
4323 792 638 216 Time Warner Telecom
18566 746 208 6 Covad Communications
721 722 21036 298 DLA Systems Automation Center
3356 642 10955 442 Level 3 Communications, LLC
209 632 3465 500 Qwest
20115 591 427 303 Charter Communications
3561 562 2433 425 Cable & Wireless USA
852 511 1142 397 Telus Advanced Communications
7843 494 699 100 Adelphia Corp.
7132 447 8287 376 SBC Internet Services
6198 442 504 188 BellSouth Network Solutions,
705 430 163 272 UUNET Technologies, Inc.
6478 412 722 93 AT&T Worldnet Services
27364 411 36 19 Armstrong Cable Services
5668 403 87 18 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 630 2013 521 UUNET - Commercial IP service
3320 302 2486 239 Deutsche Telekom AG
3301 280 1100 270 TeliaNet Sweden
8220 280 461 266 COLT Internet - International
21502 269 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 205 114 183 Romania Data Systems S.A.
5515 201 843 147 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 160 30 129 Dynamic Network Technologies,
719 157 288 102 LANLINK autonomous system
8866 153 20 7 Bulgarian Telecommunication C
3269 150 1259 67 TELECOM ITALIA
5400 149 207 120 BT Ignite European Backbone
25186 149 154 105 France Telecom Transpac's Tra
3303 147 610 129 Swisscom Ltd
12302 129 18 33 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 347 138 67 ImpSat
8151 306 440 131 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
11172 206 100 54 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 134 60 24 Telecom Argentina Stet-France
6503 123 164 84 AVANTEL, S.A.
11992 101 9 31 Integrated Systems
14117 97 6 8 Telefonica del Sur S.A.
11311 86 8 25 Sinectis S.A.
6535 85 7 19 Chilesat Servicios Empresari
11556 81 41 3 Cable-Wireless Panama
10481 80 32 7 Prima S.A.
14420 80 5 33 ANDINATEL S.A.
4270 79 18 9 Red de Interconexion Universi
15311 76 21 36 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
14522 74 5 9 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 631 218 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 57 16 1 Noor Advanced Technologies AS
22750 50 3 2 BCS-Net (PTY) Ltd
24835 34 34 7 RAYA Telecom - Egypt
9129 33 3 4 UUNET Kenya
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
14988 26 16 1 Botswana Telecommunications C
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
21491 15 1 4 UTL On-line is RF broadband I
21280 14 2 3 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 746 740 Covad Communications
4134 858 695 Data Communications Bureau
4323 792 576 Time Warner Telecom
6197 810 461 BellSouth Network Solutions,
9583 535 431 Satyam Infoway Ltd.,
721 722 424 DLA Systems Automation Center
7843 494 394 Adelphia Corp.
27364 411 392 Armstrong Cable Services
5668 403 385 Century Telephone
22773 392 374 Cox Communications, Inc. Atla
22909 394 369 Comcast Cable Corporation
6467 389 358 E.Spire Communications, Inc.
701 1253 352 UUNET Technologies, Inc.
4755 373 320 Videsh Sanchar Nigam Ltd. Aut
6478 412 319 AT&T Worldnet Services
17676 369 315 XTAGE CORPORATION
1239 936 313 Sprint
9929 345 312 China Netcom Corp.
4355 389 290 EarthLink, Inc.
20115 591 288 Charter Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
65456 PRIVATE 220.112.14.0/24 17430 Great Wall Broadband
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 /8:20 /9:3 /10:6 /11:15 /12:61
/13:138 /14:310 /15:555 /16:8103 /17:2261 /18:3893
/19:9711 /20:10358 /21:7888 /22:10901 /23:12632 /24:81149
/25:238 /26:210 /27:111 /28:61 /29:47 /30:112
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 731 746 Covad Communications
6197 659 810 BellSouth Network Solutions,
2386 612 846 AT&T Data Communications Serv
7018 571 1418 AT&T WorldNet Services
27364 395 411 Armstrong Cable Services
702 382 630 UUNET - Commercial IP service
1239 374 936 Sprint
9583 372 535 Satyam Infoway Ltd.,
4766 367 547 Korea Internet Exchange for "
5668 350 403 Century Telephone
701 345 1253 UUNET Technologies, Inc.
6198 317 442 BellSouth Network Solutions,
20115 301 591 Charter Communications
6467 287 389 E.Spire Communications, Inc.
6517 277 300 Yipes Communications, Inc.
9929 276 345 China Netcom Corp.
13609 266 309 Choice One Communications Inc
21502 266 269 NUMERICABLE is a cabled netwo
4323 250 792 Time Warner Telecom
3320 247 302 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1423 13:1 15:5 16:2
17:3 18:1 20:5 24:743 32:68 33:2
38:79 40:54 44:3 47:2 52:3 55:1
56:3 57:20 60:4 61:594 62:507 63:1839
64:2414 65:2073 66:2469 67:439 68:554 69:731
70:88 80:506 81:547 82:314 83:189 84:41
128:123 129:165 130:85 131:183 132:34 134:189
135:17 136:187 137:54 138:183 139:38 140:182
141:108 142:121 143:69 144:160 145:42 146:292
147:94 148:327 149:109 150:91 151:65 152:151
153:68 154:2 155:125 156:57 157:66 158:142
159:163 160:62 161:73 162:375 163:82 164:214
165:159 166:120 167:222 168:369 169:120 170:285
171:9 192:5583 193:2884 194:2156 195:1492 196:649
198:3668 199:3308 200:3802 201:20 202:4896 203:5742
204:3454 205:2084 206:2293 207:2570 208:2122 209:2980
210:1499 211:637 212:1121 213:1155 214:131 215:30
216:3645 217:1049 218:180 219:102 220:266 221:65
222:44
End of report
