ASN AS7539 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS7539?

AS7539 is listed under National Center for High performance Computing.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS7539 National Center for High performance Computing

National Center for High performance Computing twnic.net.tw

TW 15 Routes

AS Data

AS7539

AS7539 – National Center for High performance Computing

AS Number	7539
AS Name	TWAREN-TW
Organization	National Center for High performance Computing()
Country	TW
Website	twnic.net.tw
Number of IPv4 Routes	13
Number of IPv6 Routes	2
ASN type	GOVERNMENT
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS7539 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
120.101.64.0/22	AS7539	National Center for High performance Computing	Ministry of Education Computer Center	1024
211.79.48.0/20	AS7539	National Center for High performance Computing	National Center for High performance Computing	4096
103.124.72.0/22	AS7539	National Center for High performance Computing	National Center for High performance Computing	1024
140.110.200.0/21	AS7539	National Center for High performance Computing	Ministry of Education Computer Center	2048
2001:e10::/32	AS7539	National Center for High performance Computing	National Center for High performance Computing	~79×10²⁷
140.110.215.0/24	AS7539	National Center for High performance Computing	Ministry of Education Computer Center	256
211.73.72.0/24	AS7539	National Center for High performance Computing	National Center for High Performance Computing	256
203.145.200.48/28	AS7539	National Center for High performance Computing	National Center for High performance Computing	16
103.160.220.0/24	AS7539	National Center for High performance Computing	National Applied Research Laboratories National Center for High performance Computing	256
203.145.208.0/20	AS7539	National Center for High performance Computing	National Center for High performance Computing	4096

Raw Whois Response

% [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 1.88.34 (WHOIS-UK2)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.apnic.net",
  "as_blocks" : [ {
    "as_block" : "AS7467 - AS7722",
    "description" : [ "APNIC ASN block" ],
    "admin_contacts" : [ "HM20-AP" ],
    "tech_contacts" : [ "HM20-AP" ],
    "remarks" : [ "These AS numbers are further assigned by APNIC", "to APNIC members and end-users in the APNIC region" ],
    "mnt_by" : [ "APNIC-HM" ],
    "mnt_lower" : [ "APNIC-HM" ],
    "date_updated" : "2008-09-04",
    "source" : "APNIC"
  }, {
    "as_block" : "AS7532 - AS7539",
    "description" : [ "TWNIC-TW-AS-BLOCK" ],
    "admin_contacts" : [ "TWA2-AP" ],
    "tech_contacts" : [ "TWA2-AP" ],
    "remarks" : [ "These AS numbers are further assigned by TWNIC", "to TWNIC members" ],
    "mnt_by" : [ "APNIC-HM" ],
    "mnt_lower" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2017-06-29",
    "source" : "APNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS7539",
    "as_name" : "TWAREN-TW",
    "description" : [ "National Center for High-performance Computing", "HsinChu Taiwan 300" ],
    "country" : "TW",
    "import" : [ "from AS7539 action pref=10; accept ANY", "from AS1659 action pref=100; accept ANY", "from AS9264 action pref=100; accept ANY", "from AS145 action pref=100; accept ANY", "from AS7610 action pref=100; accept ANY", "from AS11537 action pref=100; accept ANY", "from AS293 action pref=100; accept ANY", "from AS10764 action pref=100; accept ANY" ],
    "export" : [ "to AS7539 announce AS7539", "to AS1659 announce AS7539", "to AS9264 announce AS7539", "to AS145 announce AS7539", "to AS7610 announce AS7539", "to AS11537 announce AS7539", "to AS293 announce AS7539", "to AS10764 announce AS7539" ],
    "default" : [ "to AS7539 action pref=100; networks ANY" ],
    "admin_contacts" : [ "nNA6-AP" ],
    "tech_contacts" : [ "nNA6-AP" ],
    "abuse_contacts" : [ "AT939-AP" ],
    "mnt_irt" : [ "IRT-NCHC-TW" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2025-11-06",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-NCHC-TW",
    "address" : [ "National Applied Research Laboratories National Center for High-performance Computing", "No. 7, R&D 6th Rd., Hsinchu Science Park, Hsinchu City,", "Taiwan, R.O.C. 30076" ],
    "street" : "6th Rd.",
    "city" : "R.o.c.",
    "zip_code" : "30076",
    "country" : "TAIWAN",
    "email" : [ "abuse@twaren.net" ],
    "abuse_mailbox" : [ "abuse@twaren.net" ],
    "admin_contacts" : [ "SC2941-AP" ],
    "tech_contacts" : [ "HT651-AP" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2025-11-06",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "nNA6-AP",
    "name" : "nchc Network Administrator",
    "address" : [ "No.7, R Road VI Hsinchu Science-Based Industrial Park", "Hsinchu, Taiwan , R.O.C" ],
    "street" : "No.7 R Road Vi",
    "city" : "Hsinchu",
    "country" : "TW",
    "email" : [ "noc@twaren.net" ],
    "phone" : [ "+886-6-505-0940" ],
    "fax_no" : [ "+886-6-505-0945" ],
    "admin_contacts" : [ "TLL14-AP" ],
    "tech_contacts" : [ "SC1772-AP", "HMT4-AP" ],
    "remarks" : [ "The role object should be used when making", "changes to admin-c or tech-c handle." ],
    "notify" : [ "hostmaster@twnic.net.tw" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2010-11-19",
    "source" : "APNIC",
    "addressCountry" : "TAIWAN R.O.C"
  } ],
  "technical_contacts" : [ {
    "handle" : "nNA6-AP",
    "name" : "nchc Network Administrator",
    "address" : [ "No.7, R Road VI Hsinchu Science-Based Industrial Park", "Hsinchu, Taiwan , R.O.C" ],
    "street" : "No.7 R Road Vi",
    "city" : "Hsinchu",
    "country" : "TW",
    "email" : [ "noc@twaren.net" ],
    "phone" : [ "+886-6-505-0940" ],
    "fax_no" : [ "+886-6-505-0945" ],
    "admin_contacts" : [ "TLL14-AP" ],
    "tech_contacts" : [ "SC1772-AP", "HMT4-AP" ],
    "remarks" : [ "The role object should be used when making", "changes to admin-c or tech-c handle." ],
    "notify" : [ "hostmaster@twnic.net.tw" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2010-11-19",
    "source" : "APNIC",
    "addressCountry" : "TAIWAN R.O.C"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AT939-AP",
    "name" : "ABUSE TWNICAP",
    "address" : [ "3F., No. 123, Sec. 4, Bade Rd., Songshan Dist., Taipei 105, Taiwan" ],
    "street" : "Sec. 4 Bade Rd.",
    "city" : "Taipei",
    "zip_code" : "105",
    "country" : "ZZ",
    "email" : [ "hostmaster@twnic.tw" ],
    "abuse_mailbox" : [ "hostmaster@twnic.tw" ],
    "phone" : [ "+000000000" ],
    "admin_contacts" : [ "TWA2-AP" ],
    "tech_contacts" : [ "TWA2-AP" ],
    "remarks" : [ "Generated from irt object IRT-TWNIC-AP", "hostmaster@twnic.tw was validated on 2025-05-23" ],
    "mnt_by" : [ "APNIC-ABUSE" ],
    "date_updated" : "2025-05-23",
    "source" : "APNIC",
    "addressCountry" : "TAIWAN"
  } ]
}

Peers

AS Number	Description	Country
AS22335	Metropolitan Research and Education Network	US
AS24482	SG.GS	SG
AS7610	NUS Gigapop	SG
AS18047	National Tsing Hua University	TW
AS6939	Hurricane Electric LLC	US
AS9924	Taiwan Fixed Network, Telco and Network Service Provider.	TW
AS17717	Ministry of Education Computer Center Taipei, Taiwan	TW
AS101	University of Washington	US
AS3462	Data Communication Business Group	TW
AS18183	National Center for Research on Earthquake Engineering	TW

Upstreams

AS Number	Description	Country
AS10764	University of Illinois	US
AS11537	Internet2	US
AS6939	Hurricane Electric LLC	US
AS9924	Taiwan Fixed Network, Telco and Network Service Provider.	TW
AS17717	Ministry of Education Computer Center Taipei, Taiwan	TW
AS7713	Telekomunikasi Indonesia PT	ID
AS2907	Research Organization of Information and Systems, National Institute of Informatics	JP
AS18041	Taiwna Digital Streaming Co.	TW
AS293	ESnet	US
AS7575	Australian Academic and Research Network	AU

Downstreams

AS Number	Description	Country
AS17716	National Taiwan University	TW
AS18181	NHRINET National Health Research Institutes	TW
AS18047	National Tsing Hua University	TW
AS38254	Pang Wei Tsai	TW
AS11537	Internet2	US
AS6939	Hurricane Electric LLC	US
AS17717	Ministry of Education Computer Center Taipei, Taiwan	TW
AS18183	National Center for Research on Earthquake Engineering	TW
AS1659	Taiwan Academic Network TANet Information Center	TW
AS17711	National Dong Hwa University	TW