192.81.231.0/24

🇺🇸

CIDR

192.81.231.0/24

IP Version

IPv4

Addresses

256

Mask

/24 (255.255.255.0)

Country

🇺🇸 United States

City

Chicago (West Loop)

RIR

ARIN

Status

allocated

Allocated

1/8/2015

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Prefix	Origin AS	RPKI	IRR	Last Seen
192.81.231.0/24	AS19193SPIDERROCK-GW - SPIDERROCK HOLDINGS, LLC	No ROA	RADB	5/31/2026

Origin	Registry	Maintainer	Modified
AS13789	RADB	MAINT-AS1828	2/7/2025
AS19193	RADB	MAINT-AS1828	8/2/2025

Origin ASN

Geolocation

Country🇺🇸United StatesUS

RegionIllinois

CityChicago (West Loop)

API

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

curl -s "https://api.ipctl.io/v1/prefix/192.81.231.0/24" | jq

External Links