Active Directory Networks

The Austin Active Directory resides on multiple networks on campus and in the cloud. The networks are detailed in the tables below.

See Active Directory Sites and Subnets for information on Active Directory Sites and Active Directory Subnet objects

The IP subnets listed in tables below are the supported values for defining the Austin Active Directory networks in firewall rules and other solutions that restrict network traffic based upon IP addresses.

The use of individual IP addresses instead of IP subnets is not supported by the Active Directory team as components of the Austin Active Directory may change IP addresses within the defined subnets as needed.

Current Networks

The following table documents the current and planned network subnets that contain the Austin Active Directory.

Subnet	Description

Subnet	Description
10.120.254.0/23	Active Directory domain controllers and services in the cloud
10.157.255.0/24	Active Directory domain controllers and services on campus
128.83.51.224/30	Active Directory public service endpoints on campus - current
128.83.255.0/24	Active Directory public service endpoints on campus - planned
146.6.164.144/28	Active Directory public service endpoints on campus - temporary
13.66.81.8/29	Active Directory public service endpoints in the Azure South Central US region
20.252.31.0/29	Active Directory public service endpoints in the Azure West US 2 region