MAC Address Lookup

Identify the manufacturer of any network device from its MAC address. Supports OUI lookup for switches, routers, wireless APs and more.

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Frequently asked questions

What is a MAC address?
A MAC (Media Access Control) address is a unique 48-bit identifier assigned to network interfaces. The first 6 characters (3 bytes) identify the manufacturer (OUI — Organisationally Unique Identifier).
What formats are supported?
You can enter MAC addresses in any common format: AA:BB:CC:DD:EE:FF, AA-BB-CC-DD-EE-FF, AABB.CCDD.EEFF or AABBCCDDEEFF. The tool normalises the input automatically.
What if the MAC is not found?
Some MACs are locally administered (second bit of the first octet is 1) or from very new/obscure vendors that are not yet in public OUI databases.