What Is a MAC Address, and How Does It Work? - How-To Geek
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WEBNov 16, 2021 · MAC addresses are always a 12 digit hexadecimal number, with the numbers separated every two digits by a colon or hyphen. So a MAC address of 2c549188c9e3, for example, would be displayed 2C:54:91:88:C9:E3 or 2c-54-91-88-c9-e3. Large network adapter manufacturers like Dell and Cisco will often code their identifiers, …
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