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WHOIS

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

Query
203.142.36.130
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 '203.142.32.0 - 203.142.63.255'

% Abuse contact for '203.142.32.0 - 203.142.63.255' is 'abuse@redtone.com'

inetnum:        203.142.32.0 - 203.142.63.255
netname:        RTC-NET
descr:          Internet Service Provider, Malaysia
descr:          Suite 22-28, 5th Floor, IOI Business Park,
descr:          Puchong, Selangor, Malaysia
country:        MY
org:            ORG-RMSB1-AP
admin-c:        CN186-AP
tech-c:         CN186-AP
abuse-c:        AC2124-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-MY-REDTONE
mnt-routes:     MAINT-MY-REDTONE
mnt-irt:        IRT-CNX-MY
last-modified:  2020-09-09T00:06:13Z
source:         APNIC

irt:            IRT-CNX-MY
address:        Suite 22-28, 5th floor,
address:        IOI Business Park,
address:        47100 Puchong,
address:        Selangor, Malaysia.
e-mail:         abuse@redtone.com
abuse-mailbox:  abuse@redtone.com
admin-c:        CN186-AP
tech-c:         CN186-AP
auth:           # Filtered
remarks:        abuse@redtone.com was validated on 2025-11-18
mnt-by:         MAINT-MY-CNX
last-modified:  2025-11-18T02:15:00Z
source:         APNIC

organisation:   ORG-RMSB1-AP
org-name:       Redtone Engineering & Network Services Sdn Bhd
org-type:       LIR
country:        MY
address:        Suite 22 - 30, 5th Floor,
address:        IOI Business Park,
phone:          +60380848888
fax-no:         +603-80732199
e-mail:         peering@redtone.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2024-12-16T12:56:01Z
source:         APNIC

role:           ABUSE CNXMY
country:        ZZ
address:        Suite 22-28, 5th floor,
address:        IOI Business Park,
address:        47100 Puchong,
address:        Selangor, Malaysia.
phone:          +000000000
e-mail:         abuse@redtone.com
admin-c:        CN186-AP
tech-c:         CN186-AP
nic-hdl:        AC2124-AP
remarks:        Generated from irt object IRT-CNX-MY
remarks:        abuse@redtone.com was validated on 2025-11-18
abuse-mailbox:  abuse@redtone.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-18T06:07:56Z
source:         APNIC

role:           CNX NOC
address:        Suite 22-28, 5th floor,
address:        IOI Business Park,
address:        47100 Puchong,
address:        Selangor, Malaysia.
country:        MY
phone:          +60-3-80732288
fax-no:         +60-3-80732199
e-mail:         noc.broadband@redtone.com
admin-c:        CO93-AP
tech-c:         CO93-AP
tech-c:         LIY2-AP
nic-hdl:        CN186-AP
remarks:        For SPAM/ABUSE Issue: abuse@redtone.com
remarks:        For Network Related Issue: noc.broadband@redtone.com
notify:         noc.broadband@redtone.com
abuse-mailbox:  abuse@redtone.com
mnt-by:         MAINT-MY-CNX
last-modified:  2010-12-23T03:39:20Z
source:         APNIC

% Information related to '203.142.36.0/24AS24028'

route:          203.142.36.0/24
origin:         AS24028
descr:          REDtone Marketing Sdn. Bhd.
                Suite 22-28, 5th Floor,
                IOI Business Park,
mnt-by:         MAINT-MY-CNX
last-modified:  2020-08-01T09:27:09Z
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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