availabilityZone

The Availability Zone or Local Zone for the subnet.

Default: Amazon Web Services selects one for you. If you create more than one subnet in your VPC, we do not necessarily select a different zone for each subnet.

To create a subnet in a Local Zone, set this value to the Local Zone ID, for example us-west-2-lax-1a. For information about the Regions that support Local Zones, see Available Local Zones.

To create a subnet in an Outpost, set this value to the Availability Zone for the Outpost and specify the Outpost ARN.