Enter a MAC address to look up the network card manufacturer. The first three bytes of a MAC address (the OUI) are assigned by the IEEE to each vendor. This tool identifies the manufacturer using Wireshark's official IEEE OUI database (57,000+ records), supporting colon, hyphen and other formats, case-insensitive.
It only identifies the manufacturer of the network card (via the first three bytes, the OUI). It cannot reveal the exact model, serial number or owner — the last three bytes are assigned privately by the vendor and are not published.
Yes. Vendor information depends only on the first three bytes, so a full MAC or just the OUI prefix (e.g. 40:6C:8F) returns the same manufacturer.
Modern phones and computers often use a randomized (private) MAC address on Wi-Fi. Such addresses don't belong to any vendor, so no result is returned. Use the device's real burned-in hardware address instead.
Colon (40:6C:8F:18:2C:03), hyphen (40-6C-8F-18-2C-03) and other common notations are supported, case-insensitive.