(Reading time: 1 minute) Twitter What is an IP address? IP stands for Internet Protocol. An IP address is a unique string of numbers separate by a period sign (.) that identifies each computer using the Internet Protocol to communicate over a network. What is my computer IP address? Here's how to determine the IP address of your computer: Open the Windows Start menu and right-click ”My Network Places.” Click “Properties” and you see a Network Connections screen. Double-click “Wireless Network Connection” or “Local Area Connection (LAN)” for wired connections. Open the Support tab and click “Details.” Your IP address now appears.