WHOIS

Lookup an IP or domain. Uses IANA referral first, then registry WHOIS.
Query
72.18.210.55
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 72.18.210.55"
#
# Use "?" to get help.
#

NetRange:       72.18.210.0 - 72.18.210.255
CIDR:           72.18.210.0/24
NetName:        EARTHNET
NetHandle:      NET-72-18-210-0-1
Parent:         NET72 (NET-72-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   Earthnet, Inc. (EARTHN-1)
RegDate:        2008-01-22
Updated:        2022-01-11
Ref:            https://rdap.arin.net/registry/ip/72.18.210.0


OrgName:        Earthnet, Inc.
OrgId:          EARTHN-1
Address:        1630 A 30th Street
City:           Boulder
StateProv:      CO
PostalCode:     80301-1014
Country:        US
RegDate:        1997-09-04
Updated:        2026-01-15
Ref:            https://rdap.arin.net/registry/entity/EARTHN-1


OrgTechHandle: NETWO8614-ARIN
OrgTechName:   Network Manager
OrgTechPhone:  +1-303-546-6362 
OrgTechEmail:  bsaless@earthnet.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO8614-ARIN

OrgTechHandle: LEWIN9-ARIN
OrgTechName:   Lewinski, Mike 
OrgTechPhone:  +1-303-629-2860 
OrgTechEmail:  mlewinski@massivenetworks.com
OrgTechRef:    https://rdap.arin.net/registry/entity/LEWIN9-ARIN

OrgTechHandle: SUPPO2352-ARIN
OrgTechName:   Support, Technical 
OrgTechPhone:  +1-303-546-6362 
OrgTechEmail:  support@earthnet.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SUPPO2352-ARIN

OrgAbuseHandle: SUPPO2352-ARIN
OrgAbuseName:   Support, Technical 
OrgAbusePhone:  +1-303-546-6362 
OrgAbuseEmail:  support@earthnet.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SUPPO2352-ARIN

OrgAbuseHandle: ABUSE7475-ARIN
OrgAbuseName:   Abuse Department
OrgAbusePhone:  +1-303-800-1300 
OrgAbuseEmail:  abuse@massivenetworks.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE7475-ARIN

OrgNOCHandle: NETWO8614-ARIN
OrgNOCName:   Network Manager
OrgNOCPhone:  +1-303-546-6362 
OrgNOCEmail:  bsaless@earthnet.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO8614-ARIN

OrgNOCHandle: NOC33251-ARIN
OrgNOCName:   Network Operations Center
OrgNOCPhone:  +1-303-800-1300 
OrgNOCEmail:  noc@massivenetworks.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC33251-ARIN

OrgAbuseHandle: NETWO8614-ARIN
OrgAbuseName:   Network Manager
OrgAbusePhone:  +1-303-546-6362 
OrgAbuseEmail:  bsaless@earthnet.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO8614-ARIN

OrgNOCHandle: SUPPO2352-ARIN
OrgNOCName:   Support, Technical 
OrgNOCPhone:  +1-303-546-6362 
OrgNOCEmail:  support@earthnet.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/SUPPO2352-ARIN

RTechHandle: NETWO8614-ARIN
RTechName:   Network Manager
RTechPhone:  +1-303-546-6362 
RTechEmail:  bsaless@earthnet.com
RTechRef:    https://rdap.arin.net/registry/entity/NETWO8614-ARIN

RAbuseHandle: NETWO8614-ARIN
RAbuseName:   Network Manager
RAbusePhone:  +1-303-546-6362 
RAbuseEmail:  bsaless@earthnet.com
RAbuseRef:    https://rdap.arin.net/registry/entity/NETWO8614-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.
#