121.127.56.0/21

🇺🇸

CIDR

121.127.56.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇺🇸 United States

City

Ashburn

RIR

RIPENCC

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Prefix	Origin AS	RPKI	IRR	Last Seen
121.127.56.0/21	AS7029WINDSTREAM - Windstream Communications LLC	Valid	—	6/13/2026

Prefix	Origin	Max Length	Trust Anchor
121.127.56.0/21	AS7018	/24	ripe
121.127.56.0/21	AS7029	/24	ripe
121.127.56.0/21	AS7843	/24	ripe
121.127.56.0/21	AS20115	/24	ripe
121.127.48.0/20	AS6079	/24	ripe
121.127.48.0/20	AS7018	/24	ripe
121.127.48.0/20	AS22773	/24	ripe
121.127.48.0/20	AS200598	/24	ripe
121.127.48.0/20	AS399955	/24	ripe

Origin	Registry	Maintainer	Modified
AS20115	RADB	MAINT-CHTR-WD	11/21/2025
AS7018	RIPE	lir-us-lunarnaut-1-MNT	12/22/2022

Origin ASN

Geolocation

Country🇺🇸United StatesUS

RegionVirginia

CityAshburn

API

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

curl -s "https://api.ipctl.io/v1/prefix/121.127.56.0/21" | jq

External Links