Who owns MAC prefix A4975C?

A4975C is registered to VTech Telecommunications Ltd. in the IEEE MA-L registry.

What devices use A4975C?

Any network device with a MAC address starting A4:97:5C was manufactured by or for VTech Telecommunications Ltd..

MA-L · OUI prefix

VTech Telecommunications Ltd.

Any MAC address starting A4:97:5C is registered to VTech Telecommunications Ltd. in CN.

OUI prefix	A4975C
Vendor	VTech Telecommunications Ltd.
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	A4:97:5C:00:00:00

What this means

The IEEE assigned the MA-L block A4975C to VTech Telecommunications Ltd.. 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 A4:97:5C, it is VTech Telecommunications Ltd. hardware.

Other VTech Telecommunications Ltd. prefixes

VTech Telecommunications Ltd. holds 4 registered blocks in total.

00122A 14AEDB C468D0

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