WHOIS
Lookup an IP or domain. Uses IANA referral first, then registry WHOIS.
### IANA response (whois.iana.org)
% IANA WHOIS server
% for more information on IANA, visit http://www.iana.org
% This query returned 1 object
refer: whois.apnic.net
inetnum: 203.0.0.0 - 203.255.255.255
organisation: APNIC
status: ALLOCATED
remarks: 203.0.113.0/24 reserved for TEST-NET-3 [RFC5737].
remarks: Complete registration details for 203.0.113.0/24 are
remarks: found iniana-ipv4-special-registry.
whois: whois.apnic.net
changed: 1993-05
source: IANA
### Registry response (whois.apnic.net)
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to '203.95.212.0 - 203.95.215.255'
% Abuse contact for '203.95.212.0 - 203.95.215.255' is 'abuse@gtt.net'
inetnum: 203.95.212.0 - 203.95.215.255
netname: GTT-HK
descr: GTT Communications HK Limited
descr: c/o Horwath Management Services Limited
descr: 38th Floor Central Plaza, 18 Harbour Road
country: HK
org: ORG-THKL1-AP
admin-c: GCHL3-AP
tech-c: GCHL3-AP
abuse-c: AG890-AP
status: ALLOCATED PORTABLE
remarks: --------------------------------------------------------
remarks: To report network abuse, please contact mnt-irt
remarks: For troubleshooting, please contact tech-c and admin-c
remarks: Report invalid contact via www.apnic.net/invalidcontact
remarks: --------------------------------------------------------
mnt-by: APNIC-HM
mnt-lower: MAINT-GTT-HK
mnt-routes: MAINT-GTT-HK
mnt-irt: IRT-GTT-AP
last-modified: 2021-03-08T23:02:38Z
source: APNIC
irt: IRT-GTT-AP
address: GTT Communications, Inc.
address: 7900 Tysons One Place
address: Suite 1450
address: McLean, VA 22102
address: US
phone: +1 703 442 5500
fax-no: +1 703 442 5501
e-mail: noc@gtt.net
abuse-mailbox: abuse@gtt.net
admin-c: THKL1-AP
tech-c: THKL1-AP
auth: # Filtered
remarks: noc@gtt.net was validated on 2026-01-23
remarks: abuse@gtt.net was validated on 2026-04-19
mnt-by: MAINT-TINET-HK
last-modified: 2026-04-19T09:37:48Z
source: APNIC
organisation: ORG-THKL1-AP
org-name: GTT Communications HK Limited
org-type: LIR
country: HK
address: GTT Communications, Inc
address: c/o Horwath Management Services Limited
address: 38th Floor Central Plaza, 18 Harbour Road
phone: +49-6102-8235-381
fax-no: +49-6102-8235-389
e-mail: netguartd@gtt.net
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2023-09-05T02:15:37Z
source: APNIC
role: ABUSE GTTAP
country: ZZ
address: GTT Communications, Inc.
address: 7900 Tysons One Place
address: Suite 1450
address: McLean, VA 22102
address: US
phone: +1 703 442 5500
e-mail: noc@gtt.net
admin-c: THKL1-AP
tech-c: THKL1-AP
nic-hdl: AG890-AP
remarks: Generated from irt object IRT-GTT-AP
remarks: noc@gtt.net was validated on 2026-01-23
remarks: abuse@gtt.net was validated on 2026-04-19
abuse-mailbox: abuse@gtt.net
mnt-by: APNIC-ABUSE
last-modified: 2026-04-19T09:38:07Z
source: APNIC
role: GTT Communications HK Limited - network administrator
address: 38th Floor Central Plaza, 18 Harbour Road, Wanchai, Hong Kong
country: HK
phone: +49-6102-8235 381
fax-no: +49-6102-8235 389
e-mail: netguard@gtt.net
admin-c: GCHL3-AP
tech-c: GCHL3-AP
nic-hdl: GCHL3-AP
mnt-by: MAINT-GTT-HK
last-modified: 2020-09-15T22:58:37Z
source: APNIC
% Information related to '203.95.212.0/22AS5580'
route: 203.95.212.0/22
origin: AS5580
descr: GTT Communications HK Limited
GTT Communications, Inc
c/o Horwath Management Services Limited
38th Floor Central Plaza, 18 Harbour Road
mnt-by: MAINT-GTT-HK
last-modified: 2021-03-10T11:21:28Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-UK2)
Frequently Asked Questions
What is WHOIS?
WHOIS is a protocol that queries databases to find the registered owner of a domain name or IP address. It reveals the registrar, registration dates, nameservers, and contact information associated with a domain or IP block.
Is WHOIS data always accurate?
Not always. Many domain registrars offer WHOIS privacy protection that replaces the registrant's personal details with proxy information. IP WHOIS data from Regional Internet Registries (RIRs) is generally more reliable than domain WHOIS data.
Can I use WHOIS to find who owns an IP address?
Yes. Enter any IP address into the WHOIS tool to find the organization that owns the IP block, the Regional Internet Registry (ARIN, RIPE, APNIC, etc.) that allocated it, and the network range it belongs to.
What is the difference between domain WHOIS and IP WHOIS?
Domain WHOIS shows registration details like the registrar, creation date, expiry date, and nameservers. IP WHOIS shows the network allocation, the organization that owns the IP block, and the abuse contact for reporting issues.
Why does WHOIS show privacy protection instead of real details?
Domain registrars offer WHOIS privacy services to protect registrants from spam, identity theft, and unwanted contact. GDPR regulations in Europe also require redaction of personal data from WHOIS records.
How often is WHOIS data updated?
WHOIS data is updated by the registrar or registry whenever changes are made to a domain or IP registration. Our tool queries the authoritative WHOIS server in real-time, with results cached for 7 days to reduce server load.
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