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Q & A IP & Network · September 11, 2026

How do I find a device's manufacturer from its MAC address?

Take the first three octets (the OUI) and look them up in the IEEE OUI registry. Tools that automate this — including our MAC address lookup — return the vendor name (Apple, Cisco, Samsung, etc.). Note: if the MAC is randomized, the OUI portion is meaningless; it just decodes to ‘private / locally administered’.

Read the full guide
What Is a MAC Address? Hardware Identifier, OUI, and Privacy Explained
MAC addresses are the physical-layer identifiers that let switches and Wi-Fi access points route Ethernet frames. Every network interface has one, burned in at manufacture. Modern devices randomize MACs to defeat cross-network tracking.
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