An IP address is a unique number that identifies a specific device connected to the internet or a computer network. Think of it like a home address for your computer, tablet, or phone. Just as the postal service needs your street address to deliver mail to your house, computers need IP addresses to send information to the right device.

When you visit a website, your device sends a request using its IP address, and the website's server sends the webpage back to that address. Without IP addresses, the internet couldn't function: messages, videos, and web pages wouldn't know where to go.

IP stands for “Internet Protocol,” which is the system of rules that governs how data travels across networks. An IP address looks like a series of numbers separated by dots, such as 192.168.1.1. Your home's Wi-Fi router assigns IP addresses to each device connected to it, while your internet service provider assigns an IP address to your router.

Because IP addresses can reveal your general location, some people use special tools to hide their IP address for privacy. Understanding IP addresses helps you grasp how information flows across the digital world, connecting billions of devices every second.