The Zadein MAC Address Lookup identifies the manufacturer of a network device from its MAC address. The first three octets of a MAC address identify the vendor — this tool queries a database to return the manufacturer name.
The first three octets (24 bits), known as the OUI (Organizationally Unique Identifier), are assigned to manufacturers by the IEEE.
Yes. MAC addresses can be spoofed in software. A lookup result shows the vendor assigned to the OUI, not necessarily the true physical device manufacturer.
The tool accepts common MAC address formats with colons, hyphens, or no separators.