Amazon VPC IP Address Manager (IPAM) is a managed service that makes it easier for you to plan, track, and monitor IP addresses for your AWS workloads. Using IPAM, you can easily organize IP addresses based on your routing and security needs and set simple business rules to govern IP address assignments. You can also automate IP address assignment to VPCs, eliminating the need to use spreadsheet-based or homegrown IP address planning applications, which can be hard to maintain and time-consuming. IPAM provides a unified operational view, which can be used as your single source of truth, enabling you to quickly and efficiently perform routine IP address management activities such as tracking IP utilization, troubleshooting, and auditing.