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WHOIS

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

Query
72.211.20.35
IANA
whois.iana.org
Referred
whois.arin.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.arin.net

inetnum:      72.0.0.0 - 72.255.255.255
organisation: ARIN
status:       ALLOCATED

whois:        whois.arin.net

changed:      2004-08
source:       IANA

### Registry response (whois.arin.net)

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


#
# Query terms are ambiguous.  The query is assumed to be:
#     "n 72.211.20.35"
#
# Use "?" to get help.
#

NetRange:       72.192.0.0 - 72.223.255.255
CIDR:           72.192.0.0/11
NetName:        NETBLK-COX-ATLANTA-11
NetHandle:      NET-72-192-0-0-1
Parent:         NET72 (NET-72-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   Cox Communications Inc. (CXA)
RegDate:        2005-08-03
Updated:        2012-03-02
Comment:        For legal requests/assistance please use the following contact information:
Comment:        
Comment:        Cox Subpoena Phone: 404-269-0100
Comment:        
Comment:        Cox Subpoena Info: http://www.cox.com/policy/leainformation/default.asp
Ref:            https://rdap.arin.net/registry/ip/72.192.0.0



OrgName:        Cox Communications Inc.
OrgId:          CXA
Address:        1400 Lake Hearn Dr.
City:           Atlanta
StateProv:      GA
PostalCode:     30319
Country:        US
RegDate:        
Updated:        2025-02-06
Comment:        For legal requests/assistance please use the
Comment:        following contact information:
Comment:        Cox Subpoena Info: https://www.cox.com/aboutus/policies/law-enforcement-and-subpoenas-information.html
Ref:            https://rdap.arin.net/registry/entity/CXA


OrgAbuseHandle: IC146-ARIN
OrgAbuseName:   Cox Communications Inc
OrgAbusePhone:  +1-866-272-5111 
OrgAbuseEmail:  abuse@cox.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/IC146-ARIN

OrgTechHandle: BERUB3-ARIN
OrgTechName:   Berube, Tori 
OrgTechPhone:  +1-404-269-4416 
OrgTechEmail:  tori.berube@cox.com
OrgTechRef:    https://rdap.arin.net/registry/entity/BERUB3-ARIN

OrgTechHandle: GARCI1592-ARIN
OrgTechName:   Garcia, Jacob 
OrgTechPhone:  +1-404-269-4416 
OrgTechEmail:  jacob.garcia@cox.com
OrgTechRef:    https://rdap.arin.net/registry/entity/GARCI1592-ARIN

OrgTechHandle: DMALL1-ARIN
OrgTechName:   DMALLA
OrgTechPhone:  +1-602-694-4429 
OrgTechEmail:  deependra.malla@cox.com
OrgTechRef:    https://rdap.arin.net/registry/entity/DMALL1-ARIN

OrgTechHandle: TECH1516-ARIN
OrgTechName:   Tech
OrgTechPhone:  +1-404-269-4416 
OrgTechEmail:  NOCEngineer@cox.com
OrgTechRef:    https://rdap.arin.net/registry/entity/TECH1516-ARIN

OrgRoutingHandle: GARCI1592-ARIN
OrgRoutingName:   Garcia, Jacob 
OrgRoutingPhone:  +1-404-269-4416 
OrgRoutingEmail:  jacob.garcia@cox.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/GARCI1592-ARIN

OrgTechHandle: MEROL3-ARIN
OrgTechName:   Merola, Cari 
OrgTechPhone:  +1-404-269-4416 
OrgTechEmail:  cari.merola@cox.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MEROL3-ARIN

RTechHandle: SHACK-ARIN
RTechName:   Shackelford, Scott 
RTechPhone:  +1-404-269-7626 
RTechEmail:  scott.shackelford@cox.com
RTechRef:    https://rdap.arin.net/registry/entity/SHACK-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

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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