What is APN1-PublicIPv4:InUseAddress?

Last updated: March 31, 2025

An in-use Public IPv4 Address is an address currently attached to a running resource such as an EC2 instance, a NAT Gateway, or an Elastic Load Balancer. AWS services such as these often require Public IPv4 Addresses to enable internet connectivity. Charges for in use Public IPv4 Addresses are hourly and are billed in one-second increments, with a minimum of 60 seconds billed.

The prefix represents the Asia Pacific region in Tokyo, Japan.