Who owns MAC prefix 2C53D7?

2C53D7 is registered to Sonova AG in the IEEE MA-L registry.

What devices use 2C53D7?

Any network device with a MAC address starting 2C:53:D7 was manufactured by or for Sonova AG.

MA-L · OUI prefix

Sonova AG

Any MAC address starting 2C:53:D7 is registered to Sonova AG in CH.

OUI prefix	2C53D7
Vendor	Sonova AG
Registry	MA-L (24-bit, large block)
Country	CH
Example MAC	2C:53:D7:00:00:00

What this means

The IEEE assigned the MA-L block 2C53D7 to Sonova AG. 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 2C:53:D7, it is Sonova AG hardware.

Other Sonova AG prefixes

Sonova AG holds 4 registered blocks in total.

70661B 80283C D8A469

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