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MAC Lookup
Find the vendor behind a MAC address or OUI.
Why this exists
The first three bytes of a MAC address identify the hardware vendor. That is how you put a name on an unknown device found in a DHCP lease table or on a switch port.
🔒 Runs in your browser — nothing is sent anywhere
Vendor
Loading the IEEE registry…
colon
B8:27:EB:1A:2B:3C
hyphen
B8-27-EB-1A-2B-3C
dot
B827.EB1A.2B3C
bare
B827EB1A2B3C
- • Unicast: addressed to a single device.
- • Universally administered — the first three octets are an IEEE-assigned vendor prefix.