MAC Address Lookup
Identify device manufacturer from a MAC address using the IEEE OUI database.
About the MAC Address Lookup
The MAC Address Lookup tool takes any MAC address and returns the vendor (OUI owner) — Apple, Intel, Cisco, Dell, HP, Samsung, or one of thousands of other registered manufacturers. It also normalizes the format (colon, dash, Cisco-dot) and flags special properties: locally administered, multicast, broadcast (FF:FF:FF:FF:FF:FF).
Network admins use MAC lookups to identify unknown devices on the LAN — 'what is 00:1B:63:...?' becomes 'that's an Apple device'. Wi-Fi admins use them to spot brand distributions across a network, to identify rogue devices, or to correlate device inventory with DHCP leases. Security investigators use them to trace which physical device generated suspicious traffic.
OUI assignments come from the IEEE Standards Association public database. Every network hardware manufacturer registers at least one OUI (a 3-byte prefix), and this tool decodes those prefixes into human-readable vendor names. Because OUI assignments are permanent, MAC-to-vendor mapping is highly stable data.
Enter the required value in the input field above (domain, IP, URL, or text depending on the tool).
Click the action button to run the check — results are computed instantly from our edge network.
Review the parsed output, key fields and any warnings shown in the result card.
Copy the result, share the page URL, or jump to a related tool from the sidebar to continue debugging.
- IEEE OUI database lookup
- Format normalization (colon/dash/Cisco)
- Flags locally administered, multicast, broadcast
- Runs entirely in your browser