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MAC Vendor Lookup
Enter a MAC address to identify its manufacturer (vendor) and device type, using IEEE OUI data.
Enter MAC address in any format (with or without separators)
MAC Vendor Information
MAC Address OUI Lookup
The first 3 bytes (6 hex digits) of a MAC address form the Organizationally Unique Identifier (OUI), assigned by IEEE to hardware manufacturers. The remaining 3 bytes are device-specific. OUIs help identify unknown devices on a network — a MAC starting with 00:1A:2B is a Cisco device; 3C:15:C2 is Apple. Network inventory scans and DHCP lease analysis use OUI lookups to map hardware types.