MAC Address Validator
Validate MAC addresses in multiple formats and inspect their properties.
Accepted formats: AA:BB:CC:DD:EE:FF · AA-BB-CC-DD-EE-FF · AABB.CCDD.EEFF
A MAC (Media Access Control) address is a 48-bit hardware identifier assigned to network interfaces. The first three bytes form the OUI (Organizationally Unique Identifier), assigned to manufacturers, while the last three bytes identify the specific device. Bit 0 of the first octet determines unicast (0) vs. multicast (1). Bit 1 determines globally administered (0, assigned by manufacturer) vs. locally administered (1, assigned locally). MAC addresses are used at the data link layer for local network communication.
Frequently Asked Questions
- Colon-separated (AA:BB:CC:DD:EE:FF), hyphen-separated (AA-BB-CC-DD-EE-FF), and Cisco dot notation (AABB.CCDD.EEFF). Case-insensitive.
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