Try:
You can tell

The manufacturer / NIC chipset (from the OUI), whether it's unicast or multicast, whether it's a real burned-in address or a locally-administered / randomized one, and its EUI-64 / IPv6 link-local form.

You cannot tell

The owner, serial number, physical location, IP address, or (usually) the exact model. A MAC is a link-layer ID, not an identity — and it never leaves the local network segment.

Watch out

Phones and laptops now randomize their Wi-Fi MAC per network. A "vendor" of Locally administered means the address is made up — the OUI tells you nothing real.

Loading build profiles…
Offline & private — everything runs in your browser; your MAC is never sent anywhere. · OUI = curated ~570-prefix subset; full registry at the IEEE RA. · Only Dell's tag↔code is deterministic; other serial guesses are hints. · Build prices/models are dated ballparks — confirm warranty on the vendor's site.