MAC Address Lookup

Look up any MAC Address

Our free online MAC address checker tool allows you to perform a lookup for any medium access control (MAC) address. By entering a MAC address, you can find out the manufacturer of the network interface card (NIC) and potentially the device type. This information can be useful for identifying devices on a network, troubleshooting network issues, or for security purposes.

A MAC address is a unique identifier assigned to network interfaces for communications on the physical network segment. These addresses are used as a network address for most IEEE 802 network technologies, including Ethernet, Bluetooth and WiFi.

With our MAC Address Lookup tool, you gain access to detailed information about the hardware manufacturer and, when available, the specific device model associated with the MAC address.

What is a MAC Address Lookup?

A MAC Address Lookup is a tool or service that allows users to query a medium access control (MAC) address to retrieve information about the manufacturer of the network interface card (NIC) and, when possible, the specific device type. MAC addresses are unique identifiers assigned to network interfaces for communications on the physical network segment, crucial for the operation of Ethernet, Bluetooth and Wi-Fi networks.

MAC Address Lookup tools are extensively used by network administrators, cybersecurity professionals, and tech enthusiasts to identify devices, troubleshoot network issues, or enhance network security. By understanding which device a MAC address belongs to, one can gain valuable insights into network traffic, device behavior, and potential security threats.

How does a MAC Address Lookup work?

A MAC Address Lookup works by querying a database or using an API that contains MAC address prefixes assigned to different manufacturers. Each MAC address begins with a unique set of characters (the first half of the address) known as the Organizationally Unique Identifier (OUI), which identifies the manufacturer or organization that created the network interface.

When you enter a MAC address into the lookup tool, it extracts the OUI and searches for it in the database, returning the manufacturer's name. Some tools may also provide additional information such as the manufacturer's location, the device type, and sometimes even the specific model of the device associated with the MAC address. This process is invaluable for various purposes, including network security, device identification, and troubleshooting.