How do I find my MAC address?

On Windows, open Command Prompt and type 'ipconfig /all'. On macOS, go to System Settings > Network and click your connection. On Linux, run 'ip link show' or 'ifconfig' in the terminal. On iPhone, go to Settings > General > About. On Android, go to Settings > About Phone > Status.

MAC Address Lookup

Q: What is an OUI?

An OUI (Organizationally Unique Identifier) is the first three octets (24 bits) of a MAC address. It is assigned by the IEEE to hardware manufacturers and uniquely identifies the vendor or organization that produced the network device.

Q: Can a MAC address be changed?

Yes, while the hardware MAC address is burned into the network interface, most operating systems allow you to override it with a software-defined MAC address. This is called MAC spoofing. Modern devices like iPhones and Android phones also use randomized MAC addresses for Wi-Fi privacy.

Find the manufacturer or vendor of any network device by its MAC address (OUI lookup).

What is a MAC Address?

A MAC address (Media Access Control address) is a unique hardware identifier assigned to every network interface controller (NIC) in a device. It operates at the data link layer (Layer 2) of the OSI model and is used to identify devices on a local network segment.

MAC addresses are 48 bits long and are typically written as six groups of two hexadecimal digits separated by colons or hyphens:

Colon notation: AA:BB:CC:DD:EE:FF
Hyphen notation: AA-BB-CC-DD-EE-FF
Dot notation: AABB.CCDD.EEFF (common on Cisco devices)
Plain: AABBCCDDEEFF

The first three octets (e.g., AA:BB:CC) form the OUI (Organizationally Unique Identifier), which is registered with the IEEE and identifies the manufacturer. The last three octets are assigned by the manufacturer to each device, ensuring global uniqueness.

How to Find Your MAC Address

Windows

Open Command Prompt (press Win+R, type cmd, press Enter)
Type ipconfig /all and press Enter
Look for "Physical Address" under your network adapter
Alternatively, go to Settings > Network & Internet > Properties

macOS

Click the Apple menu and select System Settings
Go to Network and select your active connection
Click Details or Advanced
The MAC address is shown under Hardware tab
Or open Terminal and type ifconfig en0 | grep ether

Linux

Open a terminal
Type ip link show or ifconfig
Look for the link/ether or HWaddr line

iPhone / iPad

Go to Settings > General > About
Look for "Wi-Fi Address" - that is your MAC address
Note: iOS 14+ uses a private (randomized) MAC address per network by default

Android

Go to Settings > About Phone > Status
Look for "Wi-Fi MAC address"
Note: Android 10+ uses randomized MAC addresses per network by default

Frequently Asked Questions

What is a MAC address?

A MAC (Media Access Control) address is a unique 48-bit hardware identifier assigned to every network interface card. It is used to identify devices on a local network. The first three octets identify the manufacturer (OUI), and the last three are unique to each device.

What is an OUI?

An OUI (Organizationally Unique Identifier) is the first 24 bits (3 octets) of a MAC address. It is assigned by the IEEE to hardware manufacturers and uniquely identifies who made the network device. Our lookup tool uses the OUI to determine the manufacturer.

Can a MAC address be changed?

Yes. While the hardware MAC is burned into the network interface, most operating systems allow overriding it with a software-defined MAC (MAC spoofing). Modern smartphones also use randomized MAC addresses by default for Wi-Fi privacy, generating a different address for each network.

What is MAC address randomization?

MAC address randomization is a privacy feature in modern devices (iOS 14+, Android 10+, Windows 10+) that generates a random MAC address when connecting to Wi-Fi networks. This prevents tracking across locations using your device's real MAC address.