Acutis MAC address lookup
Enter a MAC address and find out who made the device. The first half of every MAC is an OUI — a vendor block assigned by the IEEE. This checks it against the full registry, right in your browser.
Apple
Raspberry Pi
Cisco
Older Pi
Randomized (phone)
What you get from a MAC
- Manufacturer (OUI) — the company the first 24 bits were assigned to. Great for spotting an unknown device on your network.
- Locally administered — if set, the MAC was made up locally (randomized privacy MAC, a VM, or a manual override) rather than burned in by a vendor.
- Unicast / multicast — whether it addresses one device or a group.
Spotted a device you don't recognize?
A MAC tells you the maker. Acutis Networks tells you the whole story — it onboards every switch, AP and firewall, maps what's plugged into which port, and flags anything new the moment it appears. See Acutis Networks, or start with Acutis Go — free.
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