Look up vendor and manufacturer information for any MAC address
A MAC (Media Access Control) address is a 48-bit unique identifier assigned to network interface controllers. The first 3 bytes (OUI) identify the manufacturer, and the last 3 bytes are assigned by the manufacturer.
MAC Address Formats:
00:1A:2B:3C:4D:5E00-1A-2B-3C-4D-5E001A.2B3C.4D5E (Cisco)001A2B3C4D5EWhat is OUI?
Organizationally Unique Identifier — the first 3 bytes of a MAC address assigned by IEEE to identify the hardware manufacturer.
Can MAC addresses be faked?
Yes. MAC spoofing is common and easy. MAC address lookup should not be used as a sole security measure.
How accurate is the lookup?
The OUI database is maintained by IEEE and covers most major manufacturers. Some smaller vendors may not be listed.