![]() A MAC address consists of 12-digit hexadecimal numbers, often in a format such as 00:0A:H4:79:67:M5. MAC addresses are often assigned by the manufacturer of a network interface controller and stored in hardware such as the card's read-only memory or another firmware mechanism. A MAC address is a unique code or identification number, also known as a physical or hardware address. MAC and IP addresses are unique identifiers, both of which make data transmission on a network possible. No matter which network (wired or wireless) is used, you need hardware such as cables, routers, and software to transmit data from your device or computer to the router or ISP server, and vice versa. ![]() What Is a MAC Address and How to Change It on Windows 10Ī MAC (Media Access Control) address is required to identify individual devices connected to the network.
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