PublicDNS.info Live-tested public DNS
Retested every 72 hours.

WHOIS

Lookup an IP or domain. Uses IANA referral first, then registry WHOIS.

Query
203.142.72.194
IANA
whois.iana.org
Referred
whois.apnic.net
WHOIS servers can rate limit. Results are cached for performance.
### 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 '203.142.64.0 - 203.142.79.255'

% Abuse contact for '203.142.64.0 - 203.142.79.255' is 'abuse@biz.net.id'

inetnum:        203.142.64.0 - 203.142.79.255
netname:        BIZNET-ID
descr:          Biznet Networks
descr:          Internet Service Provider
descr:          Jakarta, Indonesia
country:        ID
admin-c:        BA18-AP
tech-c:         BA18-AP
remarks:        Send Spam & Abuse report to: abuse@biz.net.id
mnt-by:         MNT-APJII-ID
mnt-lower:      MAINT-ID-BIZNET
status:         ALLOCATED PORTABLE
mnt-irt:        IRT-BIZNET-ID
last-modified:  2026-03-02T02:07:27Z
source:         APNIC

irt:            IRT-BIZNET-ID
address:        Biznet Networks
address:        Midplaza 2, 8th Floor
address:        Jl. Jend Sudirman Kav 10-11
address:        Jakarta 10220
e-mail:         noc@biznetnetworks.com
abuse-mailbox:  abuse@biz.net.id
admin-c:        BA18-AP
tech-c:         BA18-AP
auth:           # Filtered
remarks:        abuse@biz.net.id is invalid
remarks:        noc@biznetnetworks.com was validated on 2025-12-29
mnt-by:         MAINT-ID-BIZNET
last-modified:  2026-03-09T15:38:11Z
source:         APNIC

person:         BIZNET ADMIN
address:        MidPlaza 2, 8th Floor
address:        Jl. Jendral Sudirman Kav 10-11
address:        Jakarta 10220
country:        ID
phone:          +62-21-570-8888
fax-no:         +62-21-570-0580
e-mail:         hostmaster@biz.net.id
nic-hdl:        BA18-AP
mnt-by:         MAINT-ID-BIZNET
last-modified:  2010-10-05T09:20:02Z
source:         APNIC

% Information related to '203.142.72.0 - 203.142.72.255'

inetnum:        203.142.72.0 - 203.142.72.255
netname:        BIZNET-POSTPAID-BLOCK
descr:          Biznet Postpaid
descr:          Jakarta
country:        ID
admin-c:        BA18-AP
tech-c:         BA18-AP
status:         ASSIGNED NON-PORTABLE
mnt-by:         MAINT-ID-BIZNET
mnt-irt:        IRT-BIZNET-ID
last-modified:  2025-09-17T17:34:02Z
source:         IDNIC

irt:            IRT-BIZNET-ID
address:        Biznet Networks
address:        Midplaza 2, 8th Floor
address:        Jl. Jend Sudirman Kav 10-11
address:        Jakarta 10220
e-mail:         noc@biznetnetworks.com
abuse-mailbox:  abuse@biz.net.id
admin-c:        BA18-AP
tech-c:         BA18-AP
auth:           # Filtered
mnt-by:         MAINT-ID-BIZNET
last-modified:  2024-08-22T04:54:11Z
source:         IDNIC

person:         BIZNET ADMIN
address:        MidPlaza 2, 8th Floor
address:        Jl. Jendral Sudirman Kav 10-11
address:        Jakarta 10220
country:        ID
phone:          +62-21-570-8888
fax-no:         +62-21-570-0580
e-mail:         hostmaster@biz.net.id
nic-hdl:        BA18-AP
mnt-by:         MAINT-ID-BIZNET
last-modified:  2010-10-05T09:20:02Z
source:         IDNIC

% 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.

Related tools