What is a MAC address?

A MAC (Media Access Control) address is a unique 48-bit hardware identifier assigned to network interface controllers. It consists of 6 pairs of hexadecimal digits and is used for network communication at the data link layer.

OUI (Organizationally Unique Identifier) is the first 3 bytes (24 bits) of a MAC address. It identifies the manufacturer or vendor of the network device and is assigned by the IEEE Registration Authority.

What MAC address formats are supported?

This tool supports multiple formats: colon-separated (AA:BB:CC:DD:EE:FF), dash-separated (AA-BB-CC-DD-EE-FF), dot-separated (AABB.CCDD.EEFF), and no separators (AABBCCDDEEFF).

What is the difference between UAA and LAA?

UAA (Universally Administered Address) is a globally unique MAC address assigned by the manufacturer. LAA (Locally Administered Address) is set by the network administrator and overrides the hardware address.

Is this MAC lookup tool free?

Yes, this MAC address lookup tool is completely free to use with no registration required. It uses the official IEEE OUI database to provide accurate vendor information.

MAC Address Lookup Tool - Free OUI Vendor Finder | FreeWWW.com

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MAC Address Lookup

Find vendor, manufacturer, and device information from any MAC address. Free, fast, and accurate using the official IEEE OUI database.

📖 How to Use

Enter a MAC address in any format (AA:BB:CC:DD:EE:FF, AA-BB-CC-DD-EE-FF, AABB.CCDD.EEFF, or AABBCCDDEEFF) and click "Lookup" to find the manufacturer. You can also paste multiple MAC addresses for batch lookup, generate random MACs, or export your results.

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MAC Address Lookup

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