APNIC - Query the APNIC Whois Database

To assist you with debugging problems, this whois query was received from IP Address
[216.73.216.137]

% APNIC found the following authoritative answer from: 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.
#

NetRange:       216.21.18.0 - 216.21.19.255
CIDR:           216.21.18.0/23
NetName:        NATIONAL-DEFENSE-UNIVERSITY
NetHandle:      NET-216-21-18-0-1
Parent:         NET216 (NET-216-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   National Defense University (NDU-1)
RegDate:        2015-07-08
Updated:        2021-12-14
Comment:        http://ndu.edu
Ref:            https://rdap.arin.net/registry/ip/216.21.18.0

OrgName:        National Defense University
OrgId:          NDU-1
Address:        Ft. McNair, Bldg. 62
City:           Washington
StateProv:      DC
PostalCode:     20319-6000
Country:        US
RegDate:        1994-10-04
Updated:        2015-05-07
Ref:            https://rdap.arin.net/registry/entity/NDU-1

OrgTechHandle: CJH19-ARIN
OrgTechName:   hartley, christopher john
OrgTechPhone:  +1-202-685-4716 
OrgTechEmail:  chris.hartley.ctr@ndu.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/CJH19-ARIN

OrgAbuseHandle: CJH19-ARIN
OrgAbuseName:   hartley, christopher john
OrgAbusePhone:  +1-202-685-4716 
OrgAbuseEmail:  chris.hartley.ctr@ndu.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CJH19-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.
#

Bold: Object type.
Underlined: Primary key(s).
Hyperlinks: Searchable Attributes.

6 records found for '216.21.18.195'

Search for
IP address lookups		Miscellaneous queries
-l	1st level less specific	-i	Inverse attributes
-L	All less specific	-T	Object types
-m	1st level more specific	-T	Object types
-M	All more specific	Query hints Include "AS" in front of an AS number. Example: AS4808 Include "-t" (template only) or "-v" (template and description) in front of an object name to view the template Example: -t inetnum
-x	Exact match only
-d	Associated reverse domain

For more information see: