A MAC address (Media Access Control address) is a unique identifier assigned to network interfaces for communication on a network. It is a 48-bit number represented as 12 hexadecimal digits. MAC addresses are used to identify devices on a network and control access to network resources.
MAC addresses are typically assigned by the manufacturer of the network interface and are stored in the device’s firmware. However, it is possible to buy MAC addresses from third-party vendors. This can be useful for a variety of purposes, such as: