Who owns MAC prefix B44D431?

B44D431 is registered to iLine Microsystems S.L. (B20956751) in the IEEE MA-M registry.

What devices use B44D431?

Any network device with a MAC address starting B4:4D:43:1 was manufactured by or for iLine Microsystems S.L. (B20956751).

MA-M · OUI prefix

iLine Microsystems S.L. (B20956751)

Any MAC address starting B4:4D:43:1 is registered to iLine Microsystems S.L. (B20956751) in ES.

OUI prefix	B44D431
Vendor	iLine Microsystems S.L. (B20956751)
Registry	MA-M (28-bit, medium block)
Country	ES
Example MAC	B4:4D:43:1:00:00:00

What this means

The IEEE assigned the MA-M block B44D431 to iLine Microsystems S.L. (B20956751). 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 B4:4D:43:1, it is iLine Microsystems S.L. (B20956751) hardware.

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