MAC Address Vendor Lookup

Vendor

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This lookup covers a curated list of common vendors only — it is not a complete IEEE OUI database.

How to use this MAC vendor lookup

  1. Type or paste a MAC address (like 00:1A:2B:3C:4D:5E).
  2. The manufacturer's name appears instantly if it's in the curated list.
  3. Useful for identifying unknown devices on your network.

How does vendor lookup work?

The first 3 bytes of a MAC address (called the OUI, Organizationally Unique Identifier) are officially registered to a specific manufacturer by the IEEE, allowing devices to be traced back to their maker.

Why doesn't it recognize my device's vendor?

This tool uses a small curated list, not the full IEEE database of tens of thousands of registered vendors — many manufacturers simply aren't included yet.

Can a MAC address be faked?

Yes, MAC addresses can be manually changed ("spoofed") in software, so a vendor match isn't a guaranteed proof of a device's real manufacturer.