MARZMAC Address Lookup
Look up the manufacturer of any MAC address instantly, plus how to find your own.
About this tool
Paste in a MAC address from your router or device settings to identify its manufacturer, using the official IEEE OUI registry — plus step-by-step instructions for finding your MAC address on any device.
How to use
- Find the MAC address in your device or router's network settings.
- Paste it into the field in any common format (colons, dashes, or no separators).
- The manufacturer is looked up instantly from the bundled IEEE OUI registry.
FAQ
What is a MAC address?
A MAC (Media Access Control) address is a unique hardware identifier burned into every network interface — Wi-Fi card, Ethernet port, or Bluetooth radio. It's used for communication on a local network, unlike an IP address which is used for routing across the internet.
How do I find my MAC address?
The location varies by device — see the 'How to find your MAC address' section on this page for step-by-step instructions on Windows, Mac, Linux, iPhone, and Android.
Can a MAC address be changed?
Yes. While every network adapter ships with a manufacturer-assigned MAC address, most operating systems allow it to be overridden in software — a practice called MAC spoofing or randomization, which many phones now do by default for privacy on Wi-Fi networks.
Is my MAC address the same as my IP address?
No. A MAC address identifies a physical network adapter and stays with that hardware. An IP address identifies a device's location on a network and can change. See our What Is My IP Address tool to check the latter.