Who owns MAC prefix 748F1B?

748F1B is registered to MasterImage 3D in the IEEE MA-L registry.

What devices use 748F1B?

Any network device with a MAC address starting 74:8F:1B was manufactured by or for MasterImage 3D.

MA-L · OUI prefix

MasterImage 3D

Any MAC address starting 74:8F:1B is registered to MasterImage 3D in KR.

OUI prefix	748F1B
Vendor	MasterImage 3D
Registry	MA-L (24-bit, large block)
Country	KR
Example MAC	74:8F:1B:00:00:00

What this means

The IEEE assigned the MA-L block 748F1B to MasterImage 3D. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 74:8F:1B, it is MasterImage 3D hardware.

Look up another MAC