MAC Address Lookup

Find hardware manufacturers (vendors) from MAC address OUI prefixes in real-time.

MAC Address

Detected OUI Prefix—

Sanitized Address—

Manufacturer (OUI Vendor)—

Frequently Asked Questions

What is an OUI?

An Organizationally Unique Identifier (OUI) is a 24-bit number purchase prefix that uniquely identifies a manufacturer or vendor.

Does this fetch vendor details from a server?

No. The lookup matches against a bundled dictionary of standard OUIs local to your browser.