ASN Lookup Tool

Department of Homeland Security cisa.dhs.gov US US 0 Routes

AS Data

AS396972

AS396972 – Department of Homeland Security

AS Number 396972
AS Name DHS-39N
Organization Department of Homeland Security(dhs-39)
Country US
Website cisa.dhs.gov
Number of IPv4 Routes 0
Number of IPv6 Routes 0
ASN type GOVERNMENT
Registry ARIN
Date Allocated 2018-08-06

ASN Intelligence API for production workflows

Use ASN data for AS396972 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

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


ASNumber:       396972
ASName:         DHS-39N
ASHandle:       AS396972
RegDate:        2018-08-06
Updated:        2018-08-06    
Ref:            https://rdap.arin.net/registry/autnum/396972


OrgName:        Department of Homeland Security
OrgId:          DHS-39
Address:        1110 North Glebe Road
City:           Arlington
StateProv:      VA
PostalCode:     22201
Country:        US
RegDate:        2006-04-21
Updated:        2026-01-28
Ref:            https://rdap.arin.net/registry/entity/DHS-39


OrgTechHandle: PARKB18-ARIN
OrgTechName:   Park, Brandon 
OrgTechPhone:  +1-202-294-1939 
OrgTechEmail:  brandon.park@mail.associates.cisa.dhs.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/PARKB18-ARIN

OrgNOCHandle: DELON43-ARIN
OrgNOCName:   DeLong, Jeremy 
OrgNOCPhone:  +1-850-307-7275 
OrgNOCEmail:  jeremy.delong@cisa.dhs.gov
OrgNOCRef:    https://rdap.arin.net/registry/entity/DELON43-ARIN

OrgNOCHandle: BEALL59-ARIN
OrgNOCName:   Beall, Nikki 
OrgNOCPhone:  +1-202-320-5578 
OrgNOCEmail:  nikki.beall@mail.cisa.dhs.gov
OrgNOCRef:    https://rdap.arin.net/registry/entity/BEALL59-ARIN

OrgTechHandle: DELON43-ARIN
OrgTechName:   DeLong, Jeremy 
OrgTechPhone:  +1-850-307-7275 
OrgTechEmail:  jeremy.delong@cisa.dhs.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/DELON43-ARIN

OrgTechHandle: KUMAR402-ARIN
OrgTechName:   Kumar, Asim 
OrgTechPhone:  +1-703-395-5745 
OrgTechEmail:  asim.kumar@associates.cisa.dhs.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/KUMAR402-ARIN

OrgTechHandle: LAMAN53-ARIN
OrgTechName:   lam, anh-thu 
OrgTechPhone:  +1-202-394-5951 
OrgTechEmail:  anh.lam@mail.cisa.dhs.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/LAMAN53-ARIN

OrgTechHandle: MIYAN2-ARIN
OrgTechName:   Miyani, Pratik 
OrgTechPhone:  +1-202-769-6164 
OrgTechEmail:  PRATIK.MIYANI@associates.cisa.dhs.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/MIYAN2-ARIN

OrgDNSHandle: STARK172-ARIN
OrgDNSName:   Starkey, Damon 
OrgDNSPhone:  +1-771-202-4748 
OrgDNSEmail:  damon.starkey@associates.cisa.dhs.gov
OrgDNSRef:    https://rdap.arin.net/registry/entity/STARK172-ARIN

OrgTechHandle: GROSS398-ARIN
OrgTechName:   Grossman, Stephen 
OrgTechPhone:  +1-301-800-6939 
OrgTechEmail:  stephen.grossman@associates.cisa.dhs.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/GROSS398-ARIN

OrgAbuseHandle: LAMAN53-ARIN
OrgAbuseName:   lam, anh-thu 
OrgAbusePhone:  +1-202-394-5951 
OrgAbuseEmail:  anh.lam@mail.cisa.dhs.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/LAMAN53-ARIN

OrgTechHandle: STARK172-ARIN
OrgTechName:   Starkey, Damon 
OrgTechPhone:  +1-771-202-4748 
OrgTechEmail:  damon.starkey@associates.cisa.dhs.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/STARK172-ARIN

OrgDNSHandle: DELON43-ARIN
OrgDNSName:   DeLong, Jeremy 
OrgDNSPhone:  +1-850-307-7275 
OrgDNSEmail:  jeremy.delong@cisa.dhs.gov
OrgDNSRef:    https://rdap.arin.net/registry/entity/DELON43-ARIN

OrgTechHandle: MURPH652-ARIN
OrgTechName:   Murphy, Marvin 
OrgTechPhone:  +1-850-619-0569 
OrgTechEmail:  marvin.murphy@mail.associates.cisa.dhs.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/MURPH652-ARIN

OrgRoutingHandle: LAMAN53-ARIN
OrgRoutingName:   lam, anh-thu 
OrgRoutingPhone:  +1-202-394-5951 
OrgRoutingEmail:  anh.lam@mail.cisa.dhs.gov
OrgRoutingRef:    https://rdap.arin.net/registry/entity/LAMAN53-ARIN

OrgTechHandle: AHI54-ARIN
OrgTechName:   Ibrahim, Ali Husni
OrgTechPhone:  +1-315-516-1151 
OrgTechEmail:  ali.h.ibrahim@associates.cbp.dhs.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/AHI54-ARIN

OrgRoutingHandle: DELON43-ARIN
OrgRoutingName:   DeLong, Jeremy 
OrgRoutingPhone:  +1-850-307-7275 
OrgRoutingEmail:  jeremy.delong@cisa.dhs.gov
OrgRoutingRef:    https://rdap.arin.net/registry/entity/DELON43-ARIN

OrgNOCHandle: LAMAN53-ARIN
OrgNOCName:   lam, anh-thu 
OrgNOCPhone:  +1-202-394-5951 
OrgNOCEmail:  anh.lam@mail.cisa.dhs.gov
OrgNOCRef:    https://rdap.arin.net/registry/entity/LAMAN53-ARIN

OrgTechHandle: LAMME51-ARIN
OrgTechName:   Lammers, Charles 
OrgTechPhone:  +1-703-424-0591 
OrgTechEmail:  charles.lammers@mail.associates.cisa.dhs.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/LAMME51-ARIN

OrgAbuseHandle: DELON43-ARIN
OrgAbuseName:   DeLong, Jeremy 
OrgAbusePhone:  +1-850-307-7275 
OrgAbuseEmail:  jeremy.delong@cisa.dhs.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DELON43-ARIN

OrgDNSHandle: LAMAN53-ARIN
OrgDNSName:   lam, anh-thu 
OrgDNSPhone:  +1-202-394-5951 
OrgDNSEmail:  anh.lam@mail.cisa.dhs.gov
OrgDNSRef:    https://rdap.arin.net/registry/entity/LAMAN53-ARIN

OrgTechHandle: SWANS257-ARIN
OrgTechName:   Swanson, Joseph 
OrgTechPhone:  +1-804-334-7410 
OrgTechEmail:  joseph.swanson@associates.cisa.dhs.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/SWANS257-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.
#

Parsed Whois Response

Ready to get started?Get Started with IP Intelligence API Today

Get Started
CTA Illustration

Frequently Asked Questions

ASN AS396972 is an Autonomous System Number used to identify a network for BGP internet routing.
AS396972 is listed under Department of Homeland Security.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.