Home Prefix Lookup209.162.221.0/24

209.162.221.0/24 - BGP Prefix

IPv4ARINallocatedNo ROA

CIDR

209.162.221.0/24

IP Version

IPv4

Addresses

256

Mask

/24 (255.255.255.0)

Country

🇺🇸 United States

City

Addison

RIR

ARIN

Status

allocated

Allocated

2026-07-28

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
This prefix is not currently announced in BGP. See covering prefix below.

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
209.162.220.0/22	AS6423 DF-PTL2-3 - Digital Fortress	No ROA	-	2026-10-11

Transfer History

Registry transfers of 209.162.221.0/24, blocks inside it, or blocks containing it.

209.162.221.0/24Transfer · 2026-07-28
Digital Fortress
🇺🇸 US ARIN
→
Concentra Health Services, Inc.
🇺🇸 US ARIN
209.162.208.0/20M&A · 2021-07-09
Atmosera, Inc.
🇺🇸 US ARIN
→
Digital Fortress
🇺🇸 US ARIN

Date	Resource	From	To	Type
2026-07-28	209.162.221.0/24	Digital Fortress 🇺🇸 US ARIN	Concentra Health Services, Inc. 🇺🇸 US ARIN	Transfer
2021-07-09	209.162.208.0/20	Atmosera, Inc. 🇺🇸 US ARIN	Digital Fortress 🇺🇸 US ARIN	M&A

Related Prefixes

Covering prefix

209.162.220.0/22AS6423

Geolocation

Country🇺🇸United StatesUS

RegionTexas

CityAddison

Coordinates32.9618, -96.8292 ↗

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/209.162.221.0/24

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

curl -s "https://api.ipctl.io/v1/prefix/209.162.221.0/24" | jq

External Links

RIPEstat