161.253.128.0/17

🇺🇸

CIDR

161.253.128.0/17

IP Version

IPv4

Addresses

32.7K

Mask

/17 (255.255.128.0)

Country

🇺🇸 United States

City

Washington D.C.

RIR

ARIN

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Prefix	Origin AS	RPKI	IRR	Last Seen
161.253.128.0/17	AS11039GWU - The George Washington University	Valid	ARIN	5/31/2026

Prefix	Origin	Max Length	Trust Anchor
161.253.128.0/17	AS11039	/17	arin
161.253.0.0/16	AS11039	/16	arin

Origin	Registry	Maintainer	Modified
AS11039	ARIN	MNT-GWU-Z	9/22/2021

Origin ASN

Geolocation

Country🇺🇸United StatesUS

RegionDistrict of Columbia

CityWashington D.C.

API

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

curl -s "https://api.ipctl.io/v1/prefix/161.253.128.0/17" | jq

External Links