An IP address (Internet Protocol Address) is an address to a computer, device, or online service. It may look like this: 18.104.22.168. This is how computers are able to identify each other and know where to send information over the Internet. In general, your computer or other device is assigned an IP address from the network you are using, and that's then used to send the website data back to your web browser. A similar process is used when your phone to connect to the internet via Wi-Fi of mobile networks. Your computer or phone's IP address may change over time or as you change locations.