Network · Vendor Lookup

MAC Address Lookup

Identify the hardware manufacturer of any network device by its MAC address. Look up the OUI (Organizationally Unique Identifier) to find the vendor behind any Wi-Fi, Ethernet, or IoT device.

Serial number

Find the serial in Settings → General → About, or engraved on the case.

This check runs against a live device database. Create a free account to run it.

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About MAC Addresses

What is a MAC Address?

A MAC address (Media Access Control address) is a unique 48-bit hardware identifier assigned to every network interface in a device. It's the physical address of a network adapter — whether Wi-Fi, Ethernet, or Bluetooth — and is assigned during manufacturing.

MAC addresses are formatted as six pairs of hexadecimal digits (e.g., AA:BB:CC:DD:EE:FF). The first three pairs form the OUI (Organizationally Unique Identifier), which identifies the manufacturer. The last three pairs are assigned by the manufacturer to each device.

Our tool looks up the OUI portion to identify which company manufactured the network hardware — useful for network administration, security auditing, and device identification.

MAC Address Format

AA:BB:CC:DD:EE:FF

First 3 Octets

OUI (Vendor ID)

Identifies the manufacturer

Last 3 Octets

Device ID

Unique to each device

FAQ

Frequently Asked Questions

How do I find a device's MAC address?

On most devices: Windows — run "ipconfig /all" in Command Prompt. macOS — System Preferences > Network > Advanced > Hardware. Android — Settings > About Phone > Wi-Fi MAC Address. iPhone — Settings > General > About > Wi-Fi Address.

What is an OUI?

OUI stands for Organizationally Unique Identifier. It's the first 3 bytes (24 bits) of a MAC address, assigned by the IEEE to hardware manufacturers. Each OUI uniquely identifies a company, allowing you to determine who made a network device.

Can MAC addresses be changed or spoofed?

Yes. While the hardware MAC is burned into the device, most operating systems allow software-level MAC spoofing. Modern phones also use "private" or "randomised" MAC addresses for Wi-Fi to prevent tracking. The hardware MAC remains unchanged.

Is a MAC address the same as an IP address?

No. A MAC address is a permanent hardware identifier for a network interface. An IP address is a temporary logical address assigned by a network (via DHCP or manually). MAC operates at Layer 2 (data link), IP at Layer 3 (network) of the OSI model.