Lightsail Static IPs Outlive Instances, but Detached Ones and Stopped Servers Still Cost Money

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A developer rebuilt two Lightsail instances and learned how static IPs behave differently from EC2 Elastic IPs. The IP belongs to the AWS account and region rather than to any single server, so it persists after an instance is deleted. Attaching a static IP replaces the previous dynamic public IP, so any registrations tied to the old address need updating. A detached static IP incurs hourly charges, and stopping a Lightsail instance does not halt billing, which only ends when the instance is deleted. The developer's rebuild, which moved from a $7 plan to a $5 plan, took only about 10 minutes because the static IP was reattached, preserving the address registered with a payment gateway.

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