What are IP address classes, and how are they used?

IP address classes are a way to categorize the network structure of different IP networks. It’s a method of allocating addresses used in an IPv4-based networking system that allows the devices to communicate with each other and connect to the internet. While newer protocols like IPv6 are now being used, the continued widespread use of IPv4 means that IP address classes remain essential for classifying numerous IP addresses in use today.