An IP address, or Internet Protocol address, is a unique identifier assigned to each device connected to a network that uses the Internet Protocol for communication. It serves two main functions: identifying the host or network interface and providing the location of the host in the network. IP addresses are essential for routing information across the internet and local networks.

Understanding your IP address can help with troubleshooting network issues, enhancing security, and accessing region-specific content. It also plays a crucial role in how data is sent and received over the internet, ensuring that information reaches the correct destination.