ASN AS15147 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS15147?

AS15147 is listed under DEPARTMENT OF HOMELAND SECURITY.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

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AS15147 DEPARTMENT OF HOMELAND SECURITY

ASN Lookup Tool

DEPARTMENT OF HOMELAND SECURITY dhs.gov

US 11 Routes

AS Data

AS15147

AS15147 – DEPARTMENT OF HOMELAND SECURITY

AS Number	15147
AS Name	DHSINETNOC
Organization	DEPARTMENT OF HOMELAND SECURITY(dhs-37)
Country	US
Website	dhs.gov
Number of IPv4 Routes	10
Number of IPv6 Routes	1
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	2006-11-03

ASN Intelligence API for production workflows

Use ASN data for AS15147 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
161.214.183.0/24	AS15147	DEPARTMENT OF HOMELAND SECURITY	DEPARTMENT OF HOMELAND SECURITY	256
64.69.56.0/24	AS15147	DEPARTMENT OF HOMELAND SECURITY	DEPARTMENT OF HOMELAND SECURITY	256
2600:400::/32	AS15147	DEPARTMENT OF HOMELAND SECURITY	DEPARTMENT OF HOMELAND SECURITY	~79×10²⁷
216.81.88.0/21	AS15147	DEPARTMENT OF HOMELAND SECURITY	DEPARTMENT OF HOMELAND SECURITY	2048
64.69.60.0/22	AS15147	DEPARTMENT OF HOMELAND SECURITY	DEPARTMENT OF HOMELAND SECURITY	1024
173.255.56.0/21	AS15147	DEPARTMENT OF HOMELAND SECURITY	DEPARTMENT OF HOMELAND SECURITY	2048
64.69.48.0/21	AS15147	DEPARTMENT OF HOMELAND SECURITY	DEPARTMENT OF HOMELAND SECURITY	2048
216.81.80.0/21	AS15147	DEPARTMENT OF HOMELAND SECURITY	DEPARTMENT OF HOMELAND SECURITY	2048
173.255.48.0/21	AS15147	DEPARTMENT OF HOMELAND SECURITY	DEPARTMENT OF HOMELAND SECURITY	2048
161.214.182.0/24	AS15147	DEPARTMENT OF HOMELAND SECURITY	DEPARTMENT OF HOMELAND SECURITY	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 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       15147
ASName:         DHSINETNOC
ASHandle:       AS15147
RegDate:        2006-11-03
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/15147


OrgName:        DEPARTMENT OF HOMELAND SECURITY
OrgId:          DHS-37
Address:        Department of Homeland Security
Address:        300 7th St SW
City:           Washington
StateProv:      DC
PostalCode:     20024
Country:        US
RegDate:        2005-12-05
Updated:        2024-11-25
Ref:            https://rdap.arin.net/registry/entity/DHS-37


OrgNOCHandle: DHSNO2-ARIN
OrgNOCName:   DHS-NOC
OrgNOCPhone:  +1-877-347-1638 
OrgNOCEmail:  DHSNOSCInfrastructureNetworkManagementTools@hq.dhs.gov
OrgNOCRef:    https://rdap.arin.net/registry/entity/DHSNO2-ARIN

OrgTechHandle: DHSNO2-ARIN
OrgTechName:   DHS-NOC
OrgTechPhone:  +1-877-347-1638 
OrgTechEmail:  DHSNOSCInfrastructureNetworkManagementTools@hq.dhs.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/DHSNO2-ARIN

OrgAbuseHandle: DHSNO2-ARIN
OrgAbuseName:   DHS-NOC
OrgAbusePhone:  +1-877-347-1638 
OrgAbuseEmail:  DHSNOSCInfrastructureNetworkManagementTools@hq.dhs.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DHSNO2-ARIN

RTechHandle: DIA9-ARIN
RTechName:   DHS IPv6 ADMINISTRATION
RTechPhone:  +1-703-921-6347 
RTechEmail:  JERRY.DOWELL@associates.dhs.gov
RTechRef:    https://rdap.arin.net/registry/entity/DIA9-ARIN

RNOCHandle: DHSNO1-ARIN
RNOCName:   DHS NOC
RNOCPhone:  +1-877-347-1638 
RNOCEmail:  DHS.NOC@dhs.gov
RNOCRef:    https://rdap.arin.net/registry/entity/DHSNO1-ARIN

RAbuseHandle: DIA9-ARIN
RAbuseName:   DHS IPv6 ADMINISTRATION
RAbusePhone:  +1-703-921-6347 
RAbuseEmail:  JERRY.DOWELL@associates.dhs.gov
RAbuseRef:    https://rdap.arin.net/registry/entity/DIA9-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

Peers

AS Number	Description	Country
AS13335	Cloudflare, Inc.	US

Upstreams

AS Number	Description	Country
AS13335	Cloudflare, Inc.	US