7539 TWAREN-TW National Center for High-performance Computing, TW
Adjacency: 13 Upstream: 5 Downstream: 8
Upstream Adjacent AS list
AS11537 INTERNET2-RESEARCH-EDU - Internet2, US
AS7575 AARNET-AS-AP Australian Academic and Research Network AARNet, AU
AS9924 TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
AS6461 ZAYO-6461 - Zayo Bandwidth, US
AS9264 ASNET Academia Sinica, TW
Downstream Adjacent AS list
AS18420 NCU-TW National Central University, TW
AS17716 NTU-TW National Taiwan University, TW
AS18181 NHRINET National Health Research Institutes, TW
AS18047 NTHU-TW National Tsing-Hua University, TW
AS18183 NCREE National Center for Research on Earthquake Engineering, TW
AS18426 STPI-AS-TW National Applied Research Laboratories, TW
AS1659 ERX-TANET-ASN1 Taiwan Academic Network TANet Information Center, TW
AS18422 ITRINET-AS-TW Industrial Technology Research Institute, TW
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 2514 AS7539 ORG+TRN Originate: 89344 /15.55 Transit: 784896 /12.42 TWAREN-TW National Center for High-performance Computing, TW
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 31912 AS7539 TWAREN-TW National Center for High-performanc 12 0 0 12 0 0.00% Prefix AS Path Aggregation Suggestion 103.124.72.0/22 4608 7575 7539 103.160.220.0/23 4608 7575 7539 103.160.220.0/24 4777 2497 3491 9924 7539 120.101.64.0/22 4777 2500 7660 9264 7539 140.110.0.0/16 4608 7575 7539 140.110.200.0/21 4777 2497 3491 9924 7539 140.110.215.0/24 4777 2497 3491 9924 7539 203.145.200.0/21 4608 7575 7539 203.145.208.0/20 4608 7575 7539 211.73.64.0/19 4608 7575 7539 211.73.72.0/24 4777 2500 7660 9264 7539 211.79.48.0/20 4608 7575 7539
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS7539 8 More Specifics 12 Total Advertisements TWAREN-TW National Center for High-performance Computing, TW
103.160.220.0/24 103.160.220.0/23
120.101.64.0/22 120.96.0.0/11
140.110.200.0/21 140.110.0.0/16
140.110.215.0/24 140.110.0.0/16
203.145.200.0/21 203.145.192.0/20
211.73.64.0/19 211.73.0.0/16
211.73.72.0/24 211.73.0.0/16
211.79.48.0/20 211.79.0.0/16
whois: 402332
IANA has recorded AS7539 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS7539\n % [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS7467 - AS7722'
as-block: AS7467 - AS7722
descr: APNIC ASN block
remarks: These AS numbers are further assigned by APNIC
remarks: to APNIC members and end-users in the APNIC region
admin-c: HM20-AP
tech-c: HM20-AP
mnt-by: APNIC-HM
mnt-lower: APNIC-HM
last-modified: 2008-09-04T06:40:26Z
source: APNIC
role: APNIC Hostmaster
address: 6 Cordelia Street
address: South Brisbane
address: QLD 4101
country: AU
phone: +61 7 3858 3100
fax-no: +61 7 3858 3199
e-mail: helpdesk@apnic.net
admin-c: AMS11-AP
tech-c: AH256-AP
nic-hdl: HM20-AP
remarks: Administrator for APNIC
notify: hostmaster@apnic.net
mnt-by: MAINT-APNIC-AP
last-modified: 2013-10-23T04:06:51Z
source: APNIC
% Information related to 'AS7532 - AS7539'
as-block: AS7532 - AS7539
descr: TWNIC-TW-AS-BLOCK
remarks: These AS numbers are further assigned by TWNIC
remarks: to TWNIC members
admin-c: TWA2-AP
tech-c: TWA2-AP
mnt-by: APNIC-HM
mnt-lower: MAINT-TW-TWNIC
last-modified: 2017-06-29T23:47:08Z
source: APNIC
role: TWNIC Whois Administrator
address: Taiwan Network Information Center
address: 3F., No. 123, Sec. 4, Bade Rd., Songshan Dist.,
address: Taipei, Taiwan, 105
country: TW
phone: +886-2-25289696
fax-no: +886-2-25287756
e-mail: hostmaster@twnic.net.tw
admin-c: ck373-AP
tech-c: TW922-AP
tech-c: NS10-AP
nic-hdl: TWA2-AP
notify: hostmaster@twnic.net.tw
mnt-by: MAINT-TW-TWNIC
last-modified: 2020-01-02T03:54:20Z
source: APNIC
% Information related to 'AS7539'
% Abuse contact for 'AS7539' is 'abuse@twaren.net'
aut-num: AS7539
as-name: TWAREN-TW
descr: National Center for High-performance Computing
descr: HsinChu Taiwan 300
country: TW
import: from AS7539 action pref=10; accept ANY
import: from AS1659 action pref=100; accept ANY
import: from AS9264 action pref=100; accept ANY
import: from AS145 action pref=100; accept ANY
import: from AS7610 action pref=100; accept ANY
import: from AS11537 action pref=100; accept ANY
import: from AS293 action pref=100; accept ANY
import: from AS10764 action pref=100; accept ANY
export: to AS7539 announce AS7539
export: to AS1659 announce AS7539
export: to AS9264 announce AS7539
export: to AS145 announce AS7539
export: to AS7610 announce AS7539
export: to AS11537 announce AS7539
export: to AS293 announce AS7539
export: to AS10764 announce AS7539
default: to AS7539 action pref=100; networks ANY
admin-c: nNA6-AP
tech-c: nNA6-AP
abuse-c: AT939-AP
mnt-by: MAINT-TW-TWNIC
mnt-irt: IRT-NCHC-TW
last-modified: 2025-11-06T09:06:40Z
source: APNIC
irt: IRT-NCHC-TW
address: National Applied Research Laboratories National Center for High-performance Computing
address: No. 7, R&D 6th Rd., Hsinchu Science Park, Hsinchu City,
address: Taiwan, R.O.C. 30076
e-mail: abuse@twaren.net
abuse-mailbox: abuse@twaren.net
admin-c: SC2941-AP
tech-c: HT651-AP
auth: # Filtered
mnt-by: MAINT-TW-TWNIC
last-modified: 2025-11-06T07:26:14Z
source: APNIC
role: ABUSE TWNICAP
country: ZZ
address: 3F., No. 123, Sec. 4, Bade Rd., Songshan Dist., Taipei 105, Taiwan
phone: +000000000
e-mail: hostmaster@twnic.tw
admin-c: TWA2-AP
tech-c: TWA2-AP
nic-hdl: AT939-AP
remarks: Generated from irt object IRT-TWNIC-AP
remarks: hostmaster@twnic.tw was validated on 2025-05-23
abuse-mailbox: hostmaster@twnic.tw
mnt-by: APNIC-ABUSE
last-modified: 2025-05-23T00:02:10Z
source: APNIC
role: nchc Network Administrator
address: No.7, R Road VI Hsinchu Science-Based Industrial Park
address: Hsinchu, Taiwan , R.O.C
country: TW
phone: +886-6-505-0940
fax-no: +886-6-505-0945
e-mail: noc@twaren.net
admin-c: TLL14-AP
tech-c: SC1772-AP
tech-c: HMT4-AP
nic-hdl: nNA6-AP
remarks: The role object should be used when making
remarks: changes to admin-c or tech-c handle.
notify: hostmaster@twnic.net.tw
mnt-by: MAINT-TW-TWNIC
last-modified: 2010-11-19T07:03:41Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.47 (WHOIS-AU4)