MAC Address Lookup

Identify the manufacturer of a network device by its MAC address. Enter any MAC address to look up the vendor information.

Accepted formats: 00:1A:2B:3C:4D:5E 00-1A-2B-3C-4D-5E 001A2B3C4D5E

What is a MAC Address?

A MAC (Media Access Control) address is a unique identifier assigned to network interfaces. The first 3 bytes (6 hex characters) identify the manufacturer, known as the OUI (Organizationally Unique Identifier).

Where to Find Your MAC Address

  • Windows: Run ipconfig /all in Command Prompt
  • Mac: System Preferences → Network → Advanced → Hardware
  • Router: Check connected devices list in admin panel

Frequently asked questions

What is a MAC address?

A MAC (Media Access Control) address is a unique 12-character hexadecimal identifier assigned to network interfaces by manufacturers. It's used for communication within local networks.

Can I change my MAC address?

Yes, many devices allow MAC address spoofing for privacy or testing purposes. However, the hardware-burned address remains unchanged. Check your device's network settings or use specialized software.

What is an OUI?

OUI (Organizationally Unique Identifier) is the first 6 characters of a MAC address. It identifies the manufacturer. The IEEE assigns OUIs to companies for use in their products.

Why is my MAC address showing as unknown?

Some MAC addresses may not be in the public database if the manufacturer hasn't registered them, uses a private range, or if the device uses a randomized MAC address for privacy.