Who owns MAC prefix 500B916?

500B916 is registered to Security Alarms & Co. S.A. in the IEEE MA-M registry.

What devices use 500B916?

Any network device with a MAC address starting 50:0B:91:6 was manufactured by or for Security Alarms & Co. S.A..

MA-M · OUI prefix

Security Alarms & Co. S.A.

Any MAC address starting 50:0B:91:6 is registered to Security Alarms & Co. S.A. in CH.

OUI prefix	500B916
Vendor	Security Alarms & Co. S.A.
Registry	MA-M (28-bit, medium block)
Country	CH
Example MAC	50:0B:91:6:00:00:00

What this means

The IEEE assigned the MA-M block 500B916 to Security Alarms & Co. S.A.. 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 50:0B:91:6, it is Security Alarms & Co. S.A. hardware.

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