A static IP address is an IP address that was manually configured for a device, versus one that was assigned via a DHCP (Dynamic Host Configuration Protocol) server. It's called static because it doesn't change. It's the exact opposite of a dynamic IP address, which does change. Routers, phones, tablets, desktops, laptops, and any other device that can use an IP address can be configured to have a static IP address. This might be done through the device giving out IP addresses (like the router) or by manually typing the IP address into the device from the device itself.