MAC Address Vendor Lookup Tool

MAC Address Vendor Lookup Tool

Find out which organization assigned your MAC Address.

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OUI Vendor Lookup

Our MAC Address or OUI Vendor lookup allows network analysts and developers to easily determine which devices are being used in their network. This can be extremely useful for analysts or developers who are trying to determine a device’s functionality just by looking at their MAC address. Our lookup tool is completely free to use and is updated at least once a day.

What is a MAC Address?

A MAC address otherwise known as a media access control address is a unique identifier that is assigned to a network interface controller or NIC on a device. This allows devices to be easily identified when the device is using either WiFi, Bluetooth, or Ethernet connections. Each MAC address is assigned by the manufacturer’s OUI or organizationally unique identifier, which are typically the first 24-bit numbers that are displayed in a MAC address. An OUI can allow you to determine which manufacturer or vendor created your network device.