Mac address for DCE5339

Company / Vendor
Tiertime Corporation
Prefix
DCE5339
Database Type
IEEE MA-M
Start Mac Address
DCE5339900000
End Mac Address
DCE53399FFFFF
Company Address
2398 Walsh Avenue
Santa Clara CA 95051
United States 🇺🇸
Possible Devices
1048576
This number represents the possible device number that can be manufactured using this mac address, but doesn't mean it is all has been manufactured yet
Link
DCE5339

Every network device's MAC address starts with a 3-byte OUI (Organizationally Unique Identifier) that the IEEE assigns to its manufacturer. Feed this tool a MAC address and it looks that prefix up in the official registry, then tells you which company built the hardware.

Looking up a MAC address like this returns the registered manufacturer:

3C:5A:B4:12:34:56 Google, Inc.

Can a MAC address reveal my exact device model?

No. It identifies the manufacturer through the OUI, not the specific model, and it tells you nothing personal about the device owner.

Why does the lookup fail for some addresses?

Locally-administered or randomized MAC addresses, common on modern phones for privacy reasons, don't map to a registered manufacturer. Those won't return a vendor.

Where does the vendor data come from?

The IEEE's public OUI registry, which manufacturers register with whenever they're assigned a block of MAC addresses.

Does this tool store the addresses I look up?

The lookup exists to identify a device vendor for troubleshooting or inventory purposes, not to track or log individual users.