% 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/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       166
ASName:         IDA-AS
ASHandle:       AS166
RegDate:        1988-03-29
Updated:        2022-05-20    
Ref:            https://rdap.arin.net/registry/autnum/166


OrgName:        Institute for Defense Analyses
OrgId:          IDA-2-Z
Address:        730 E Glebe Rd
City:           Alexandria
StateProv:      VA
PostalCode:     22305
Country:        US
RegDate:        2010-02-01
Updated:        2025-11-17
Ref:            https://rdap.arin.net/registry/entity/IDA-2-Z


OrgNOCHandle: TPHID-ARIN
OrgNOCName:   TPH61-IDA
OrgNOCPhone:  +1-703-845-2518 
OrgNOCEmail:  thurrell@ida.org
OrgNOCRef:    https://rdap.arin.net/registry/entity/TPHID-ARIN

OrgTechHandle: CMU49-ARIN
OrgTechName:   Murphy, Chris 
OrgTechPhone:  +1-703-845-6833 
OrgTechEmail:  cmurphy@ida.org
OrgTechRef:    https://rdap.arin.net/registry/entity/CMU49-ARIN

OrgRoutingHandle: TPHID-ARIN
OrgRoutingName:   TPH61-IDA
OrgRoutingPhone:  +1-703-845-2518 
OrgRoutingEmail:  thurrell@ida.org
OrgRoutingRef:    https://rdap.arin.net/registry/entity/TPHID-ARIN

OrgTechHandle: TPHID-ARIN
OrgTechName:   TPH61-IDA
OrgTechPhone:  +1-703-845-2518 
OrgTechEmail:  thurrell@ida.org
OrgTechRef:    https://rdap.arin.net/registry/entity/TPHID-ARIN

OrgAbuseHandle: CMU49-ARIN
OrgAbuseName:   Murphy, Chris 
OrgAbusePhone:  +1-703-845-6833 
OrgAbuseEmail:  cmurphy@ida.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CMU49-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.
#