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MAC Lookup

Identify network device manufacturers from MAC addresses

What is a MAC Address? A Media Access Control (MAC) address is a unique identifier assigned to network devices. The first 6 digits identify the manufacturer.

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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 interface controllers (NICs) for communications on a network. It's like a permanent serial number for network devices.

How do I find my MAC address?

On Windows: Open Command Prompt and type "ipconfig /all". On Mac: Go to System Preferences > Network > Advanced > Hardware. On Linux: Type "ifconfig" or "ip addr" in terminal.

What MAC address formats are supported?

We support all standard formats: 00:1A:2B:3C:4D:5E, 00-1A-2B-3C-4D-5E, and 001A2B3C4D5E. The tool automatically formats your input.

Why does my MAC lookup show "Not Found"?

Some MAC addresses use randomly generated or private OUIs (Organizationally Unique Identifiers) that aren't registered in public databases. This is common with virtual machines or privacy-focused devices.

What is an OUI?

OUI (Organizationally Unique Identifier) is the first 3 octets (6 characters) of a MAC address. It uniquely identifies the manufacturer or vendor of the network device.

Is MAC address lookup free?

Yes! Our MAC address lookup tool is completely free with no registration required. You can perform unlimited lookups for network security and OSINT investigations.