Who owns MAC prefix 44599F?

44599F is registered to Criticare Systems, Inc in the IEEE MA-L registry.

What devices use 44599F?

Any network device with a MAC address starting 44:59:9F was manufactured by or for Criticare Systems, Inc.

MA-L · OUI prefix

Criticare Systems, Inc

Any MAC address starting 44:59:9F is registered to Criticare Systems, Inc in US.

OUI prefix	44599F
Vendor	Criticare Systems, Inc
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	44:59:9F:00:00:00

What this means

The IEEE assigned the MA-L block 44599F to Criticare Systems, Inc. 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 44:59:9F, it is Criticare Systems, Inc hardware.

Look up another MAC