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: 202.0.0.0 - 202.255.255.255 organisation: APNIC status: ALLOCATED 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 '202.175.0.0 - 202.175.127.255' % Abuse contact for '202.175.0.0 - 202.175.127.255' is 'NMC_Internet_LeasedLine@ctm.com.mo' inetnum: 202.175.0.0 - 202.175.127.255 netname: CTM-MO descr: CTM country: MO geoloc: 22.200559616089 113.54611206055 org: ORG-CDTD1-AP admin-c: CN448-AP tech-c: CM2469-AP abuse-c: AC2161-AP status: ALLOCATED PORTABLE remarks: combine all small allocation objects into a /17 object remarks: this object can only modify by APNIC Hostmaster mnt-by: APNIC-HM mnt-lower: MAINT-CTM-MO mnt-routes: MAINT-CTM-MO mnt-irt: IRT-CTM-MO last-modified: 2021-01-18T03:52:15Z source: APNIC irt: IRT-CTM-MO address: Rua da Lagos, Telecentro address: P.O. Box 868 address: Taipa address: Macau e-mail: NMC_Internet_LeasedLine@ctm.com.mo abuse-mailbox: NMC_Internet_LeasedLine@ctm.com.mo admin-c: CN448-AP tech-c: CM2469-AP auth: # Filtered remarks: nmc_internet_leasedline@ctm.com.mo is invalid mnt-by: MAINT-CTM-MO last-modified: 2025-11-18T00:26:29Z source: APNIC organisation: ORG-CDTD1-AP org-name: Companhia de Telecomunicacoes de Macau org-type: LIR country: MO address: Rua de Lagos address: Telecentro address: Taipa address: Macau phone: +853-891-2211 fax-no: +853-891-2933 e-mail: NMC_Internet_LeasedLine@ctm.com.mo mnt-ref: APNIC-HM mnt-by: APNIC-HM last-modified: 2023-09-05T02:14:42Z source: APNIC role: ABUSE CTMMO country: ZZ address: Rua da Lagos, Telecentro address: P.O. Box 868 address: Taipa address: Macau phone: +000000000 e-mail: NMC_Internet_LeasedLine@ctm.com.mo admin-c: CN448-AP tech-c: CM2469-AP nic-hdl: AC2161-AP remarks: Generated from irt object IRT-CTM-MO remarks: nmc_internet_leasedline@ctm.com.mo is invalid abuse-mailbox: NMC_Internet_LeasedLine@ctm.com.mo mnt-by: APNIC-ABUSE last-modified: 2025-07-16T13:12:03Z source: APNIC person: CTM Mcenter address: Rua de Lagos, Telecentro, Taipa country: MO phone: +853 8891 2211 e-mail: NMC_Internet_LeasedLine@ctm.com.mo nic-hdl: CM2469-AP mnt-by: MAINT-CTM-MO last-modified: 2022-06-27T02:35:35Z source: APNIC person: CTM NOC address: Rua de Lagos, Telecentro, Taipa country: MO phone: +853 8891 2211 e-mail: NMC_Internet_LeasedLine@ctm.com.mo nic-hdl: CN448-AP mnt-by: MAINT-CTM-MO last-modified: 2022-06-27T02:30:59Z source: APNIC % Information related to '202.175.66.0/24AS4609' route: 202.175.66.0/24 descr: CTM Internet Service origin: AS4609 mnt-lower: MAINT-CTM-MO mnt-routes: MAINT-CTM-MO mnt-by: MAINT-CTM-MO last-modified: 2014-07-08T08:35:09Z 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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