ASN Lookup Tool

AS5721
National Defense University US US 2 Routes

AS5721National Defense University

AS Number 5721
AS Name NDU-NET
Organization National Defense University(ndu-1)
Country US
Website ndu.edu
Number of IPv4 Routes 2
Number of IPv6 Routes 0
ASN type EDUCATION
Allocation Status
Registry ARIN
Date Allocated N/A

IP Ranges

Route # IPs
216.21.18.0/24 256
216.21.19.0/24 256

Raw Whois Response

#
# 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 1997-2025, American Registry for Internet Numbers, Ltd.
#


ASNumber:       5721
ASName:         NDU-NET
ASHandle:       AS5721
RegDate:        1995-09-06
Updated:        2015-05-07
Comment:        http://www.ndu.edu    
Ref:            https://rdap.arin.net/registry/autnum/5721


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


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

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

RAbuseHandle: CJH19-ARIN
RAbuseName:   hartley, christopher john
RAbusePhone:  +1-202-685-4716 
RAbuseEmail:  chris.hartley.ctr@ndu.edu
RAbuseRef:    https://rdap.arin.net/registry/entity/CJH19-ARIN

RNOCHandle: CJH19-ARIN
RNOCName:   hartley, christopher john
RNOCPhone:  +1-202-685-4716 
RNOCEmail:  chris.hartley.ctr@ndu.edu
RNOCRef:    https://rdap.arin.net/registry/entity/CJH19-ARIN

RTechHandle: CJH19-ARIN
RTechName:   hartley, christopher john
RTechPhone:  +1-202-685-4716 
RTechEmail:  chris.hartley.ctr@ndu.edu
RTechRef:    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 1997-2025, American Registry for Internet Numbers, Ltd.
#
            

Parsed Whois Response

Peers

AS Number Description Country
AS22773 Cox Communications Inc. US
AS33657 Comcast Cable Communications, LLC US

Upstreams

AS Number Description Country
AS22773 Cox Communications Inc. US
AS33657 Comcast Cable Communications, LLC US

Contacts

Email Contacts

Abuse Contacts

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