Who owns MAC prefix 904E91C?

904E91C is registered to Showtacle s.r.o. in the IEEE MA-M registry.

What devices use 904E91C?

Any network device with a MAC address starting 90:4E:91:C was manufactured by or for Showtacle s.r.o..

MA-M · OUI prefix

Showtacle s.r.o.

Any MAC address starting 90:4E:91:C is registered to Showtacle s.r.o. in SK.

OUI prefix	904E91C
Vendor	Showtacle s.r.o.
Registry	MA-M (28-bit, medium block)
Country	SK
Example MAC	90:4E:91:C:00:00:00

What this means

The IEEE assigned the MA-M block 904E91C to Showtacle s.r.o.. 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 90:4E:91:C, it is Showtacle s.r.o. hardware.

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