Mac address for 3C4015

Company / Vendor
12mm Health Technology (Hainan) Co., Ltd.
Prefix
3C4015
Database Type
IEEE MA-L
Start Mac Address
3C4015000000
End Mac Address
3C4015FFFFFF
Company Address
Room A20-860, 5th Floor, Building A,Entrepreneurship Incubation Center,No. 266 Nanhai Avenue,National Hi-Tech Industrial Development Zone,Haikou City, Hainan Province, China
Haikou Hainan 570100
China 🇨🇳
Possible Devices
16777216
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
3C4015

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.