MAC Vendor Lookup
Look up a public IEEE OUI prefix in a locally bundled registry snapshot.
Result
Run the tool to see its result here.
How to use this tool
Enter a six-byte MAC address. The first three bytes identify a registry assignment, not necessarily the device maker.
When not to use it
Randomized and locally administered addresses have no reliable vendor assignment. Registry data can become stale.
Data source and date
Bundled data checked: 2026-09-23. Registry data can change.
IEEE Registration Authority ↗