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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 22 Aug, 2004
Analysis Summary
----------------
BGP routing table entries examined: 143945
Prefixes after maximum aggregation: 85876
Unique aggregates announced to Internet: 68772
Total ASes present in the Internet Routing Table: 17837
Origin-only ASes present in the Internet Routing Table: 15449
Origin ASes announcing only one prefix: 7267
Transit ASes present in the Internet Routing Table: 2388
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 21
Prefixes from unregistered ASNs in the Routing Table: 14
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1331711144
Equivalent to 79 /8s, 96 /16s and 76 /24s
Percentage of available address space announced: 35.9
Percentage of allocated address space announced: 58.1
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 65274
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27778
Total APNIC prefixes after maximum aggregation: 14043
Prefixes being announced from the APNIC address blocks: 25999
Unique aggregates announced from the APNIC address blocks: 13494
APNIC Region origin ASes present in the Internet Routing Table: 2108
APNIC Region origin ASes announcing only one prefix: 620
APNIC Region transit ASes present in the Internet Routing Table: 332
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 158694272
Equivalent to 9 /8s, 117 /16s and 123 /24s
Percentage of available APNIC address space announced: 72.4
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: 82068
Total ARIN prefixes after maximum aggregation: 50079
Prefixes being announced from the ARIN address blocks: 63557
Unique aggregates announced from the ARIN address blocks: 22384
ARIN Region origin ASes present in the Internet Routing Table: 9426
ARIN Region origin ASes announcing only one prefix: 3398
ARIN Region transit ASes present in the Internet Routing Table: 929
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 230236192
Equivalent to 13 /8s, 185 /16s and 32 /24s
Percentage of available ARIN address space announced: 68.6
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: 26632
Total RIPE prefixes after maximum aggregation: 18828
Prefixes being announced from the RIPE address blocks: 23411
Unique aggregates announced from the RIPE address blocks: 15609
RIPE Region origin ASes present in the Internet Routing Table: 5753
RIPE Region origin ASes announcing only one prefix: 3114
RIPE Region transit ASes present in the Internet Routing Table: 1007
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 169662016
Equivalent to 10 /8s, 28 /16s and 214 /24s
Percentage of available RIPE address space announced: 59.5
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: 6245
Total LACNIC prefixes after maximum aggregation: 2240
Prefixes being announced from the LACNIC address blocks: 6006
Unique aggregates announced from the LACNIC address blocks: 3522
LACNIC Region origin ASes present in the Internet Routing Table: 387
LACNIC Region origin ASes announcing only one prefix: 114
LACNIC Region transit ASes present in the Internet Routing Table: 76
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15714816
Equivalent to 0 /8s, 239 /16s and 202 /24s
Percentage of available LACNIC address space announced: 46.8
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1208
Total AfriNIC prefixes after maximum aggregation: 686
Prefixes being announced from the AfriNIC address blocks: 820
Unique aggregates announced from the AfriNIC address blocks: 661
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 21
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1994496
Equivalent to 0 /8s, 30 /16s and 111 /24s
Percentage of available AfriNIC address space announced: 11.9
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 830 4161 155 Data Communications Bureau
1221 811 1184 585 Telstra Pty Ltd
4766 552 2897 262 Korea Internet Exchange for "
9583 527 41 106 Satyam Infoway Ltd.,
4755 367 133 49 Videsh Sanchar Nigam Ltd. Aut
9929 361 161 33 China Netcom Corp.
9443 355 70 81 Primus Telecommunications
2907 352 1840 326 SINET Japan
17676 346 5148 38 XTAGE CORPORATION
17557 327 23 164 Pakistan Telecom
703 317 342 244 UUNET
2764 289 274 236 connect.com.au pty ltd
7474 264 268 201 Optus Communications Pty Ltd
9942 236 73 129 COMindico Australia
4802 231 25 140 Wantree Development
9800 225 369 63 CHINA UNICOM
9498 221 49 49 BHARTI BT INTERNET LTD.
17633 210 56 6 ASN for Shandong Provincial N
4837 202 2246 109 chinanet IDC center beijing n
10036 202 18 183 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1407 6787 963 AT&T WorldNet Services
701 1278 8423 921 UUNET Technologies, Inc.
1239 917 2855 612 Sprint
4323 781 632 219 Time Warner Telecom
18566 741 193 8 Covad Communications
6197 717 361 339 BellSouth Network Solutions,
6347 665 330 121 SAVVIS Communications Corpora
209 615 3430 498 Qwest
721 606 20813 277 DLA Systems Automation Center
20115 576 384 298 Charter Communications
3356 564 10935 434 Level 3 Communications, LLC
852 510 1142 399 Telus Advanced Communications
7843 507 690 119 Adelphia Corp.
3561 455 2389 346 Cable & Wireless USA
6198 455 398 206 BellSouth Network Solutions,
7132 432 8029 374 SBC Internet Services
705 428 163 270 UUNET Technologies, Inc.
22773 409 960 18 Cox Communications, Inc. Atla
2386 408 535 230 AT&T Data Communications Serv
4355 388 323 99 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 651 2020 542 UUNET - Commercial IP service
3320 300 2469 237 Deutsche Telekom AG
3301 281 1098 271 TeliaNet Sweden
8220 275 445 262 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
13083 217 51 8 Mannesmann Datenverarbeitung
3246 216 483 213 Song Networks
1257 214 747 183 SWIPnet Swedish IP Network
8708 203 113 181 Romania Data Systems S.A.
5515 199 842 145 Sonera Solution Autonomous Sy
3215 183 892 77 France Telecom Transpac
786 177 1794 177 The JANET IP Service
25186 164 155 112 France Telecom Transpac's Tra
5400 158 274 129 BT Ignite European Backbone
6746 153 29 130 Dynamic Network Technologies,
719 150 288 102 LANLINK autonomous system
3269 143 1195 65 TELECOM ITALIA
8866 133 15 15 Bulgarian Telecommunication C
3303 130 609 129 Swisscom Ltd
12302 127 18 33 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 357 99 53 Servicios Alestra S.A de C.V
6140 334 137 64 ImpSat
8151 286 392 132 UniNet S.A. de C.V.
16814 206 13 7 NSS, S.A.
6147 187 86 19 Telefonica Del Peru
11664 155 11 24 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
6503 129 203 87 AVANTEL, S.A.
7303 121 55 19 Telecom Argentina Stet-France
11992 89 9 30 Integrated Systems
6535 81 5 16 Chilesat Servicios Empresari
11556 81 41 3 Cable-Wireless Panama
11311 79 7 19 Sinectis S.A.
5639 76 8 8 Telecommunications Services o
15311 76 21 36 Telefonica Empresas
4270 70 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
11340 68 21 37 Red Universitaria Nacional
14259 67 4 5 GTD Internet S.A.
10292 66 6 25 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 253 632 220 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 92 276 81 The Internetworking Company o
14988 44 16 1 Botswana Telecommunications C
20928 44 16 1 Noor Advanced Technologies AS
24835 33 18 6 RAYA Telecom - Egypt
9129 28 3 4 UUNET Kenya
6713 27 42 10 Itissalat Al-MAGHRIB
8524 26 2 4 AUCEGYPT Autonomous System
5713 25 125 23 Telkom SA Ltd
16637 24 10 19 Johnnic e-Ventures
12455 20 4 2 Jambonet Autonomous system
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 741 733 Covad Communications
4134 830 675 Data Communications Bureau
4323 781 562 Time Warner Telecom
6347 665 544 SAVVIS Communications Corpora
9583 527 421 Satyam Infoway Ltd.,
22773 409 391 Cox Communications, Inc. Atla
7843 507 388 Adelphia Corp.
6197 717 378 BellSouth Network Solutions,
5668 385 367 Century Telephone
701 1278 357 UUNET Technologies, Inc.
27364 350 331 Armstrong Cable Services
721 606 329 DLA Systems Automation Center
9929 361 328 China Netcom Corp.
6467 350 321 E.Spire Communications, Inc.
4755 367 318 Videsh Sanchar Nigam Ltd. Aut
22909 356 312 Comcast Cable Corporation
17676 346 308 XTAGE CORPORATION
1239 917 305 Sprint
11172 357 304 Servicios Alestra S.A de C.V
4766 552 290 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64573 PRIVATE 219.146.112.0/21 17633 ASN for Shandong Pro
64573 PRIVATE 219.146.120.0/21 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.176.0/22 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.180.0/22 17633 ASN for Shandong Pro
64585 PRIVATE 219.146.224.0/22 17633 ASN for Shandong Pro
64585 PRIVATE 219.146.228.0/22 17633 ASN for Shandong Pro
64573 PRIVATE 222.173.160.0/20 17633 ASN for Shandong Pro
64573 PRIVATE 222.173.176.0/20 17633 ASN for Shandong Pro
64584 PRIVATE 222.174.96.0/20 17633 ASN for Shandong Pro
64584 PRIVATE 222.174.112.0/20 17633 ASN for Shandong Pro
64585 PRIVATE 222.175.32.0/20 17633 ASN for Shandong Pro
64585 PRIVATE 222.175.48.0/20 17633 ASN for Shandong Pro
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
192.43.230.0/24 4738 South Australian Academic Res
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 /11:14 /12:63
/13:134 /14:304 /15:542 /16:7976 /17:2164 /18:3771
/19:9705 /20:10183 /21:7523 /22:10429 /23:12056 /24:78381
/25:235 /26:188 /27:100 /28:36 /29:9 /30:75
/31:0 /32:28
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 724 741 Covad Communications
6197 569 717 BellSouth Network Solutions,
7018 554 1407 AT&T WorldNet Services
6347 485 665 SAVVIS Communications Corpora
702 405 651 UUNET - Commercial IP service
9583 369 527 Satyam Infoway Ltd.,
4766 364 552 Korea Internet Exchange for "
701 362 1278 UUNET Technologies, Inc.
1239 362 917 Sprint
5668 337 385 Century Telephone
27364 336 350 Armstrong Cable Services
6198 335 455 BellSouth Network Solutions,
20115 303 576 Charter Communications
9929 289 361 China Netcom Corp.
6517 264 291 Yipes Communications, Inc.
6467 259 350 E.Spire Communications, Inc.
13609 257 300 Choice One Communications Inc
3320 247 300 Deutsche Telekom AG
25844 245 245 Skadden, Arps, Slate, Meagher
14824 242 265 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:2 12:868 13:1 15:1 16:2
17:3 20:9 24:720 32:66 33:2 38:79
40:54 44:4 55:1 56:3 57:16 60:6
61:458 62:510 63:1853 64:2244 65:2052 66:2451
67:359 68:545 69:694 70:65 80:541 81:355
82:196 83:122 84:34 128:96 129:171 130:84
131:176 132:23 134:185 135:17 136:184 137:47
138:169 139:35 140:160 141:106 142:118 143:59
144:99 145:42 146:288 147:93 148:420 149:111
150:88 151:70 152:157 153:68 154:2 155:129
156:59 157:71 158:142 159:160 160:54 161:70
162:390 163:78 164:179 165:161 166:115 167:221
168:282 169:114 170:276 171:9 192:5558 193:2852
194:2082 195:1446 196:578 198:3657 199:3254 200:3646
201:9 202:4807 203:5657 204:3148 205:2079 206:2299
207:2483 208:2153 209:2993 210:1450 211:588 212:990
213:1194 214:94 215:30 216:3758 217:990 218:182
219:114 220:244 221:33 222:115
End of report
