ASN AS17711 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS17711?

AS17711 is listed under National Dong Hwa University.

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?

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AS17711 National Dong Hwa University

National Dong Hwa University twnic.net.tw

TW 37 Routes

AS Data

AS17711

AS17711 – National Dong Hwa University

AS Number	17711
AS Name	NDHU-TW
Organization	National Dong Hwa University (NDHU-TW)
Country	TW
Website	twnic.net.tw
Number of IPv4 Routes	37
Number of IPv6 Routes	0
ASN type	GOVERNMENT
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS17711 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
203.68.24.0/23	AS17711	National Dong Hwa University	T CSJH.TTC.EDU.TW NET	512
210.70.56.0/22	AS17711	National Dong Hwa University	National Dong Hwa University	1024
203.64.40.0/22	AS17711	National Dong Hwa University	DAHAN JUNIOR COLLEGE OF ENGINEERING & BUSINESS	1024
203.64.76.0/22	AS17711	National Dong Hwa University	TCCM.EDU.TW NET	1024
203.68.154.0/23	AS17711	National Dong Hwa University	T HLBH.HL.EDU.TW NET	512
210.59.6.0/23	AS17711	National Dong Hwa University	T YLJH.MLC.EDU.TW NET	512
203.72.73.0/24	AS17711	National Dong Hwa University	National Dong Hwa University	256
203.64.80.0/21	AS17711	National Dong Hwa University	TCCM.EDU.TW NET	2048
210.240.104.0/24	AS17711	National Dong Hwa University	T TCPS.HLC.EDU.TW NET	256
203.71.58.0/23	AS17711	National Dong Hwa University	T SSH.HLC.EDU.TW NET	512

Raw Whois Response

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS17653 - AS18431'

as-block:       AS17653 - AS18431
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:  2019-01-08T23:19:07Z
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 'AS17709 - AS17718'

as-block:       AS17709 - AS17718
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:  2017-06-29T23:47:09Z
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 'AS17711'

% Abuse contact for 'AS17711' is 'noc@mail.moe.gov.tw'

aut-num:        AS17711
as-name:        NDHU-TW
descr:          National Dong Hwa University
descr:          Hualien, Taiwan
country:        TW
import:         from AS1659 action pref=10; accept ANY
import:         from AS7539 action pref=20; accept ANY
import:         from AS9680 action pref=20; accept ANY
export:         to AS1659 announce AS17711
export:         to AS7539 announce AS17711
default:        to AS1659 action pref=5; networks ANY
default:        to AS7539 action pref=10; networks ANY
admin-c:        YL293-AP
tech-c:         RW121-AP
abuse-c:        AT939-AP
mnt-by:         MAINT-TW-TWNIC
mnt-irt:        IRT-TANET-TW
last-modified:  2025-11-06T09:08:23Z
source:         APNIC

irt:            IRT-TANET-TW
address:        Ministry of Education computer Center
address:        12F, No 106, Sec. 2, Heping E. Rd., Taipei
e-mail:         noc@mail.moe.gov.tw
abuse-mailbox:  noc@mail.moe.gov.tw
admin-c:        TWA2-AP
tech-c:         TWA2-AP
auth:           # Filtered
mnt-by:         MAINT-TW-TWNIC
last-modified:  2025-11-06T07:51:48Z
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

person:         Reen-Cheng Wang
address:        National Dong Hwa University
address:        1, Sec. 2,Da Hsueh Rd., Shou-Feng
address:        Hualien
country:        TW
phone:          +886-3-662-500 ext. 17102
fax-no:         +886-3-662-509
e-mail:         manager@cc.nctu.edu.tw
nic-hdl:        RW121-AP
mnt-by:         MAINT-TW-TWNIC
last-modified:  2008-09-04T07:29:18Z
source:         APNIC

person:         Yu-Feng Lee
address:        National Dong Hwa University
address:        1, Sec. 2,Da Hsueh Rd., Shou-Feng
address:        Hualien
country:        TW
phone:          +886-3-662-500 ext. 17104
fax-no:         +886-3-662-509
e-mail:         manager@mail.ndhu.edu.tw
nic-hdl:        YL293-AP
mnt-by:         MAINT-TW-TWNIC
last-modified:  2008-09-04T07:29:18Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-UK2)



#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       17653 - 17913
ASName:         APNIC-17652
ASHandle:       AS17653
RegDate:        2002-09-11
Updated:        2021-06-23
Comment:        These AS numbers are not registered in the ARIN database.
Comment:        For details, refer to the APNIC Whois Database via
Comment:        WHOIS.APNIC.NET or http://wq.apnic.net/apnic-bin/whois.pl
Ref:            https://rdap.arin.net/registry/autnum/17653

ResourceLink:  https://apps.db.ripe.net/db-web-ui/query
ResourceLink:  whois.apnic.net


OrgName:        Asia Pacific Network Information Centre
OrgId:          APNIC
Address:        PO Box 3646
City:           South Brisbane
StateProv:      QLD
PostalCode:     4101
Country:        AU
RegDate:        
Updated:        2012-01-24
Ref:            https://rdap.arin.net/registry/entity/APNIC

ReferralServer:  whois://whois.apnic.net
ResourceLink:  http://wq.apnic.net/whois-search/static/search.html

OrgAbuseHandle: AWC12-ARIN
OrgAbuseName:   APNIC Whois Contact
OrgAbusePhone:  +61 7 3858 3188 
OrgAbuseEmail:  search-apnic-not-arin@apnic.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/AWC12-ARIN

OrgTechHandle: AWC12-ARIN
OrgTechName:   APNIC Whois Contact
OrgTechPhone:  +61 7 3858 3188 
OrgTechEmail:  search-apnic-not-arin@apnic.net
OrgTechRef:    https://rdap.arin.net/registry/entity/AWC12-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS17653 - AS18431'

as-block:       AS17653 - AS18431
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:  2019-01-08T23:19:07Z
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 'AS17709 - AS17718'

as-block:       AS17709 - AS17718
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:  2017-06-29T23:47:09Z
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 'AS17711'

% Abuse contact for 'AS17711' is 'noc@mail.moe.gov.tw'

aut-num:        AS17711
as-name:        NDHU-TW
descr:          National Dong Hwa University
descr:          Hualien, Taiwan
country:        TW
import:         from AS1659 action pref=10; accept ANY
import:         from AS7539 action pref=20; accept ANY
import:         from AS9680 action pref=20; accept ANY
export:         to AS1659 announce AS17711
export:         to AS7539 announce AS17711
default:        to AS1659 action pref=5; networks ANY
default:        to AS7539 action pref=10; networks ANY
admin-c:        YL293-AP
tech-c:         RW121-AP
abuse-c:        AT939-AP
mnt-by:         MAINT-TW-TWNIC
mnt-irt:        IRT-TANET-TW
last-modified:  2025-11-06T09:08:23Z
source:         APNIC

irt:            IRT-TANET-TW
address:        Ministry of Education computer Center
address:        12F, No 106, Sec. 2, Heping E. Rd., Taipei
e-mail:         noc@mail.moe.gov.tw
abuse-mailbox:  noc@mail.moe.gov.tw
admin-c:        TWA2-AP
tech-c:         TWA2-AP
auth:           # Filtered
mnt-by:         MAINT-TW-TWNIC
last-modified:  2025-11-06T07:51:48Z
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

person:         Reen-Cheng Wang
address:        National Dong Hwa University
address:        1, Sec. 2,Da Hsueh Rd., Shou-Feng
address:        Hualien
country:        TW
phone:          +886-3-662-500 ext. 17102
fax-no:         +886-3-662-509
e-mail:         manager@cc.nctu.edu.tw
nic-hdl:        RW121-AP
mnt-by:         MAINT-TW-TWNIC
last-modified:  2008-09-04T07:29:18Z
source:         APNIC

person:         Yu-Feng Lee
address:        National Dong Hwa University
address:        1, Sec. 2,Da Hsueh Rd., Shou-Feng
address:        Hualien
country:        TW
phone:          +886-3-662-500 ext. 17104
fax-no:         +886-3-662-509
e-mail:         manager@mail.ndhu.edu.tw
nic-hdl:        YL293-AP
mnt-by:         MAINT-TW-TWNIC
last-modified:  2008-09-04T07:29:18Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-US2)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.apnic.net",
  "as_blocks" : [ {
    "as_block" : "AS17653 - AS18431",
    "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" : "2019-01-08",
    "source" : "APNIC"
  }, {
    "as_block" : "AS17709 - AS17718",
    "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"
  }, {
    "as_block" : "AS17653 - AS18431",
    "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" : "2019-01-08",
    "source" : "APNIC"
  }, {
    "as_block" : "AS17709 - AS17718",
    "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" : "AS17711",
    "as_name" : "NDHU-TW",
    "description" : [ "National Dong Hwa University", "Hualien, Taiwan" ],
    "country" : "TW",
    "import" : [ "from AS1659 action pref=10; accept ANY", "from AS7539 action pref=20; accept ANY", "from AS9680 action pref=20; accept ANY" ],
    "export" : [ "to AS1659 announce AS17711", "to AS7539 announce AS17711" ],
    "default" : [ "to AS1659 action pref=5; networks ANY", "to AS7539 action pref=10; networks ANY" ],
    "admin_contacts" : [ "YL293-AP" ],
    "tech_contacts" : [ "RW121-AP" ],
    "abuse_contacts" : [ "AT939-AP" ],
    "mnt_irt" : [ "IRT-TANET-TW" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2025-11-06",
    "source" : "APNIC"
  }, {
    "aut_num" : "AS17711",
    "as_name" : "NDHU-TW",
    "description" : [ "National Dong Hwa University", "Hualien, Taiwan" ],
    "country" : "TW",
    "import" : [ "from AS1659 action pref=10; accept ANY", "from AS7539 action pref=20; accept ANY", "from AS9680 action pref=20; accept ANY" ],
    "export" : [ "to AS1659 announce AS17711", "to AS7539 announce AS17711" ],
    "default" : [ "to AS1659 action pref=5; networks ANY", "to AS7539 action pref=10; networks ANY" ],
    "admin_contacts" : [ "YL293-AP" ],
    "tech_contacts" : [ "RW121-AP" ],
    "abuse_contacts" : [ "AT939-AP" ],
    "mnt_irt" : [ "IRT-TANET-TW" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2025-11-06",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-TANET-TW",
    "address" : [ "Ministry of Education computer Center", "12F, No 106, Sec. 2, Heping E. Rd., Taipei" ],
    "street" : "No 106 Sec. 2 Heping E. Rd.",
    "city" : "Taipei",
    "email" : [ "noc@mail.moe.gov.tw" ],
    "abuse_mailbox" : [ "noc@mail.moe.gov.tw" ],
    "admin_contacts" : [ "TWA2-AP" ],
    "tech_contacts" : [ "TWA2-AP" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2025-11-06",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "YL293-AP",
    "name" : "Yu-Feng Lee",
    "address" : [ "National Dong Hwa University", "1, Sec. 2,Da Hsueh Rd., Shou-Feng", "Hualien" ],
    "street" : "2 Da Hsueh Rd. Shou-feng",
    "city" : "Hualien",
    "country" : "TW",
    "email" : [ "manager@mail.ndhu.edu.tw" ],
    "phone" : [ "+886-3-662-500 ext. 17104" ],
    "fax_no" : [ "+886-3-662-509" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2008-09-04",
    "source" : "APNIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "RW121-AP",
    "name" : "Reen-Cheng Wang",
    "address" : [ "National Dong Hwa University", "1, Sec. 2,Da Hsueh Rd., Shou-Feng", "Hualien" ],
    "street" : "2 Da Hsueh Rd. Shou-feng",
    "city" : "Hualien",
    "country" : "TW",
    "email" : [ "manager@cc.nctu.edu.tw" ],
    "phone" : [ "+886-3-662-500 ext. 17102" ],
    "fax_no" : [ "+886-3-662-509" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2008-09-04",
    "source" : "APNIC"
  } ],
  "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
AS7539	National Center for High performance Computing	TW
AS9680	Data Communication Business Group, Chunghwa Telecom Co., Ltd.	TW
AS3462	Chunghwa Telecom Co., Ltd.	TW
AS3462	Data Communication Business Group	TW
AS1659	Taiwan Academic Network TANet Information Center	TW
AS1659	Taiwan Academic Network (TANet) Information Center	TW
AS7539	National Center for High-performance Computing	TW

Upstreams

AS Number	Description	Country
AS7539	National Center for High performance Computing	TW
AS3462	Chunghwa Telecom Co., Ltd.	TW

Downstreams

AS Number	Description	Country
AS1659	Taiwan Academic Network TANet Information Center	TW

Contacts

Email Contacts

hostmaster@twnic.tw manager@mail.ndhu.edu.tw hostmaster@twnic.net.tw noc@mail.moe.gov.tw manager@cc.nctu.edu.tw

Abuse Contacts

noc@mail.moe.gov.tw

ASN Lookup Tool

ASN Summary