ASN AS18043 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS18043?

AS18043 is listed under Department of Education, Hsinchu City.

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.

AS18043 Department of Education, Hsinchu City

ASN Lookup Tool

Department of Education, Hsinchu City hc.edu.tw

TW 2 Routes

AS Data

AS18043

AS18043 – Department of Education, Hsinchu City

AS Number	18043
AS Name	HCCG-AS
Organization	Department of Education, Hsinchu City
Country	TW
Website	hc.edu.tw
Number of IPv4 Routes	1
Number of IPv6 Routes	1
ASN type	ISP
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS18043 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
144.79.66.0/23	AS18043	Department of Education, Hsinchu City	Department of Education, Hsinchu City	512
2402:3ce0::/32	AS18043	Department of Education, Hsinchu City	Department of Education, Hsinchu City	~79×10²⁷

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 'AS18040 - AS18049'

as-block:       AS18040 - AS18049
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 'AS18043'

% Abuse contact for 'AS18043' is 'tclin@hc.edu.tw'

aut-num:        AS18043
as-name:        HCCG-AS
descr:          Department of Education, Hsinchu City
descr:          No. 120, Zhongzheng Rd., East Dist., Hsinchu City 300, Taiwan (R.O.C.)
country:        TW
admin-c:        TR651-AP
tech-c:         TR651-AP
mnt-by:         MAINT-TW-TWNIC
mnt-irt:        IRT-HCCG_HCEB-TW
last-modified:  2026-01-06T11:53:52Z
source:         APNIC

irt:            IRT-HCCG_HCEB-TW
address:        Hsinchu City Government
address:        No. 120, Zhongzheng Rd., East Dist., Hsinchu City 300, Taiwan (R.O.C.)
phone:          +886-03-5249617 # 202
e-mail:         tclin@hc.edu.tw
abuse-mailbox:  tclin@hc.edu.tw
admin-c:        TR651-AP
tech-c:         TR651-AP
remarks:        (oid:HCCG_HCEB)
auth:           # Filtered
last-modified:  2025-12-04T01:51:04Z
source:         APNIC
mnt-by:         MAINT-TW-TWNIC

role:           TWNIC ROLE-HCCG_HCEB
nic-hdl:        TR651-AP
address:        Hsinchu City Government
address:        No. 120, Zhongzheng Rd., East Dist., Hsinchu City 300, Taiwan (R.O.C.)
country:        TW
phone:          +886-03-5249617 # 202
e-mail:         tclin@hc.edu.tw
abuse-mailbox:  tclin@hc.edu.tw
admin-c:        CTL13-AP
tech-c:         CTL13-AP
remarks:        (hid:CL2512040A-TW)
last-modified:  2025-12-04T01:50:59Z
source:         APNIC
mnt-by:         MAINT-TW-TWNIC

% 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" : "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" : "AS18040 - AS18049",
    "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" : "AS18043",
    "as_name" : "HCCG-AS",
    "description" : [ "Department of Education, Hsinchu City", "No. 120, Zhongzheng Rd., East Dist., Hsinchu City 300, Taiwan (R.O.C.)" ],
    "country" : "TW",
    "admin_contacts" : [ "TR651-AP" ],
    "tech_contacts" : [ "TR651-AP" ],
    "mnt_irt" : [ "IRT-HCCG_HCEB-TW" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2026-01-06",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-HCCG_HCEB-TW",
    "address" : [ "Hsinchu City Government", "No. 120, Zhongzheng Rd., East Dist., Hsinchu City 300, Taiwan (R.O.C.)" ],
    "street" : "Zhongzheng Rd. East Dist. Hsinchu",
    "city" : "City",
    "zip_code" : "300",
    "country" : "TAIWAN R.O.C.",
    "email" : [ "tclin@hc.edu.tw" ],
    "abuse_mailbox" : [ "tclin@hc.edu.tw" ],
    "phone" : [ "+886-03-5249617" ],
    "admin_contacts" : [ "TR651-AP" ],
    "tech_contacts" : [ "TR651-AP" ],
    "remarks" : [ "(oid:HCCG_HCEB)" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2025-12-04",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "TR651-AP",
    "name" : "TWNIC ROLE-HCCG_HCEB",
    "address" : [ "Hsinchu City Government", "No. 120, Zhongzheng Rd., East Dist., Hsinchu City 300, Taiwan (R.O.C.)" ],
    "street" : "Zhongzheng Rd. East Dist. Hsinchu",
    "city" : "City",
    "zip_code" : "300",
    "country" : "TW",
    "email" : [ "tclin@hc.edu.tw" ],
    "abuse_mailbox" : [ "tclin@hc.edu.tw" ],
    "phone" : [ "+886-03-5249617" ],
    "admin_contacts" : [ "CTL13-AP" ],
    "tech_contacts" : [ "CTL13-AP" ],
    "remarks" : [ "(hid:CL2512040A-TW)" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2025-12-04",
    "source" : "APNIC",
    "addressCountry" : "TAIWAN R.O.C."
  } ],
  "technical_contacts" : [ {
    "handle" : "TR651-AP",
    "name" : "TWNIC ROLE-HCCG_HCEB",
    "address" : [ "Hsinchu City Government", "No. 120, Zhongzheng Rd., East Dist., Hsinchu City 300, Taiwan (R.O.C.)" ],
    "street" : "Zhongzheng Rd. East Dist. Hsinchu",
    "city" : "City",
    "zip_code" : "300",
    "country" : "TW",
    "email" : [ "tclin@hc.edu.tw" ],
    "abuse_mailbox" : [ "tclin@hc.edu.tw" ],
    "phone" : [ "+886-03-5249617" ],
    "admin_contacts" : [ "CTL13-AP" ],
    "tech_contacts" : [ "CTL13-AP" ],
    "remarks" : [ "(hid:CL2512040A-TW)" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2025-12-04",
    "source" : "APNIC",
    "addressCountry" : "TAIWAN R.O.C."
  } ]
}

Peers

AS Number	Description	Country
AS6939	Hurricane Electric LLC	US
AS9681	Formosa Open eXchange(FOX)	TW

Upstreams

AS Number	Description	Country
AS6939	Hurricane Electric LLC	US

Contacts

Email Contacts

tclin@hc.edu.tw hostmaster@twnic.net.tw

Abuse Contacts

tclin@hc.edu.tw