MAC OUI Lookup
Identify device vendor from MAC address OUI prefixes and address bits
This free online mac oui lookup runs in your browser and is part of our Developer Tools collection.
MAC OUI Lookup
Identify the vendor for a MAC address prefix and inspect address type bits.
What this helps with
- Map discovered devices to likely hardware vendors
- Practice interpreting OUI and MAC flag bits
- Assist with inventory and NAC troubleshooting
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