Home Prefix Lookup161.214.9.0/24

161.214.9.0/24 - DEPARTMENT OF HOMELAND SECURITY (AS15147)

IPv4ARINannouncedAS15147DHSINETNOC - DEPARTMENT OF HOMELAND SECURITYNo ROA

CIDR

161.214.9.0/24

IP Version

IPv4

Addresses

256

Mask

/24 (255.255.255.0)

Country

🇺🇸 United States

City

Atlanta

RIR

ARIN

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
161.214.9.0/24	AS15147 DHSINETNOC - DEPARTMENT OF HOMELAND SECURITY	No ROA	ARIN	2026-10-11

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
161.214.8.0/22	AS15147 DHSINETNOC - DEPARTMENT OF HOMELAND SECURITY	No ROA	-	2026-10-11

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS15147	ARIN	MNT-DHS-37-Z	2026-05-19

Transfer History

Registry transfers of 161.214.9.0/24, blocks inside it, or blocks containing it.

161.214.0.0/16M&A · 2021-03-05
U.S. Immigration and Naturalization Service
🇺🇸 US ARIN
→
DEPARTMENT OF HOMELAND SECURITY
🇺🇸 US ARIN

Date	Resource	From	To	Type
2021-03-05	161.214.0.0/16	U.S. Immigration and Naturalization Service 🇺🇸 US ARIN	DEPARTMENT OF HOMELAND SECURITY 🇺🇸 US ARIN	M&A

Origin ASN

AS15147

DHSINETNOC - DEPARTMENT OF HOMELAND SECURITY

Related Prefixes

Covering prefix

161.214.8.0/22AS15147

More prefixes of AS15147

All prefixes of AS15147 →

Geolocation

Country🇺🇸United StatesUS

RegionGeorgia

CityAtlanta

Coordinates33.7501, -84.3885 ↗

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the ARIN regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/161.214.9.0/24

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/161.214.9.0/24" | jq

External Links

RIPEstat