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: 61.0.0.0 - 61.255.255.255
organisation: APNIC
status: ALLOCATED
whois: whois.apnic.net
changed: 1997-04
source: IANA
### Registry response (whois.apnic.net)
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to '61.7.128.0 - 61.7.191.255'
% Abuse contact for '61.7.128.0 - 61.7.191.255' is 'pitoon.p@ntplc.co.th'
inetnum: 61.7.128.0 - 61.7.191.255
netname: NT1-BB
descr: National Telecom Public Company Limited 7 Fl. 72. CAT TELECOM TOWER Bangrak Bangkok Thailand
country: TH
admin-c: TU38-AP
tech-c: PD452-AP
tech-c: PS474-AP
tech-c: WP273-AP
tech-c: CB840-AP
tech-c: IC174-AP
abuse-c: AN3307-AP
status: ALLOCATED NON-PORTABLE
mnt-by: MAINT-NTPCL-TH
mnt-irt: IRT-NTPCL-TH
last-modified: 2025-11-19T23:59:26Z
source: APNIC
irt: IRT-NTPCL-TH
address: 99 Chaengwattana Road, Thung Song Hong Subdistrict, Luk Si, Luksi Bangkok 10210
e-mail: pitoon.p@ntplc.co.th
abuse-mailbox: pitoon.p@ntplc.co.th
admin-c: NTPC2-AP
tech-c: NTPC2-AP
auth: # Filtered
mnt-by: MAINT-NTPCL-TH
last-modified: 2026-02-02T07:21:59Z
source: APNIC
role: ABUSE NTPCLTH
country: ZZ
address: 99 Chaengwattana Road, Thung Song Hong Subdistrict, Luk Si, Luksi Bangkok 10210
phone: +000000000
e-mail: pitoon.p@ntplc.co.th
admin-c: NTPC2-AP
tech-c: NTPC2-AP
nic-hdl: AN3307-AP
remarks: Generated from irt object IRT-NTPCL-TH
abuse-mailbox: pitoon.p@ntplc.co.th
mnt-by: APNIC-ABUSE
last-modified: 2025-11-19T01:51:42Z
source: APNIC
person: CAT Broadband
address: 10 Fl. 72. CAT TELECOM TOWER Bangrak Bangkok Thailand
country: TH
phone: +66-261-42138
e-mail: nmc@cat.net.th
nic-hdl: CB840-AP
mnt-by: MAINT-TH-THIX-CAT
last-modified: 2018-02-07T08:56:35Z
source: APNIC
person: IP-network CAT Telecom
nic-hdl: IC174-AP
e-mail: noc@cat.net.th
address: Data Comm. Dept. National Telecom Public Company Limited
address: NT Tower
address: 72 Charoenkrung Road Bangrak Bangkok THAILAND 10501
phone: +66-2-6142374
fax-no: +66-2-6142270
country: TH
mnt-by: MAINT-TH-THIX-CAT
last-modified: 2022-09-05T09:44:01Z
source: APNIC
person: Passanon dumsood
address: 10 Fl. 72. CAT TELECOM TOWER Bangrak Bangkok Thailand
country: TH
phone: +66-261-42138
e-mail: passanon.d@cat.net.th
nic-hdl: PD452-AP
mnt-by: MAINT-TH-THIX-CAT
last-modified: 2017-06-13T04:19:50Z
source: APNIC
person: Passakorn Senaliang
nic-hdl: PS474-AP
e-mail: pass2000@cat.net.th
address: CAT-BB-NET
address: 10 Fl. 72. CAT TELECOM TOWER Bangrak Bangkok Thailand
phone: +66-261-42138
fax-no: +66-261-42682
country: TH
mnt-by: MAINT-NEW
last-modified: 2008-09-25T12:35:57Z
source: APNIC
person: Theerachai Udomkitpanya
address: 10 Fl. 72. CAT TELECOM TOWER Bangrak Bangkok
country: TH
phone: +66-261-42918
e-mail: theerachai.u@cattelecom.com
nic-hdl: TU38-AP
mnt-by: MAINT-TH-THIX-CAT
last-modified: 2017-11-23T10:20:25Z
source: APNIC
person: Weerapong Pankaew
nic-hdl: WP273-AP
e-mail: pankaew@cat.net.th
address: CAT-BB-NET
address: 10 Fl. 72. CAT TELECOM TOWER Bangrak Bangkok Thailand
phone: +66-261-42138
fax-no: +66-261-42682
country: TH
mnt-by: MAINT-NEW
last-modified: 2008-09-25T12:45:58Z
source: APNIC
% Information related to '61.7.144.0/24AS131090'
route: 61.7.144.0/24
origin: AS131090
descr: CAT Telecom Public Company Limited
13th CAT TELECOM TOWER
NEW ROAD SRIPHRAYA BANGRAK
BANGKOK
THAILAND
mnt-by: MAINT-NTPCL-TH
last-modified: 2025-11-19T01:51:24Z
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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