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Enter a MAC address to normalize it and look up the vendor from the first three octets (OUI).
00:50:56:C0:00:01
00:50:56
A MAC address identifies a network interface. The first three bytes (the OUI) are assigned to manufacturers by the IEEE; this tool looks them up against a small built-in list of common vendors. Everything runs in your browser.
Colon-separated (00:50:56:c0:00:01), hyphen-separated (00-50-56-c0-00-01), Cisco-style dotted (0050.56c0.0001) and the bare 12-hex form are all accepted. Case is ignored.
The tool checks the OUI (first three bytes) against a small built-in list of common vendors. It does not ship the full IEEE OUI registry, so less common manufacturers may not be matched.
No. Parsing and lookup happen entirely in your browser. The value you enter is never sent to any external server.