209.251.255.0/24

🇺🇸

CIDR

209.251.255.0/24

IP Version

IPv4

Addresses

256

Mask

/24 (255.255.255.0)

Country

🇺🇸 United States

City

Chicago (Edison Park)

RIR

ARIN

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Prefix	Origin AS	RPKI	IRR	Last Seen
209.251.255.0/24	AS36478ALLIANTCU - Alliant Credit Union	No ROA	RADB	6/1/2026

Origin	Registry	Maintainer	Modified
AS7029	RADB	MAINT-AS7029	11/13/2023
AS7922	RADB	MAINT-AS7922	11/13/2023
AS10930	RADB	MAINT-AS1828	11/13/2023
AS36478	RADB	MAINT-AS14609	11/13/2023

Origin ASN

Geolocation

Country🇺🇸United StatesUS

RegionIllinois

CityChicago (Edison Park)

API

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

curl -s "https://api.ipctl.io/v1/prefix/209.251.255.0/24" | jq

External Links