167.220.128.0/18

🇺🇸

CIDR

167.220.128.0/18

IP Version

IPv4

Addresses

16.3K

Mask

/18 (255.255.192.0)

Country

🇺🇸 United States

City

Washington

RIR

ARIN

Status

allocated

Allocated

10/19/1993

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Prefix	Origin AS	RPKI	IRR	Last Seen
167.220.128.0/18	AS3598MICROSOFT-CORP-AS - Microsoft Corporation	Valid	RADB	5/30/2026

3 less-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
167.220.0.0/16	AS3598MICROSOFT-CORP-AS - Microsoft Corporation	No ROA	—	5/30/2026
167.220.148.0/22	AS3598MICROSOFT-CORP-AS - Microsoft Corporation	Valid	—	5/30/2026
167.220.152.0/24	AS3598MICROSOFT-CORP-AS - Microsoft Corporation	Valid	—	5/30/2026

Prefix	Origin	Max Length	Trust Anchor
167.220.128.0/18	AS3598	/18	arin

Origin	Registry	Maintainer	Modified
AS3598	RADB	MAINT-AS8075	11/13/2023

Origin ASN

Geolocation

Country🇺🇸United StatesUS

RegionVirginia

CityWashington

API

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

curl -s "https://api.ipctl.io/v1/prefix/167.220.128.0/18" | jq

External Links