What this means
The IEEE assigned the MA-M block 94C9B73 to Sitronics JSC. 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 94:C9:B7:3, it is Sitronics JSC hardware.
Frequently Asked Questions
Who owns MAC prefix 94C9B73?
94C9B73 is registered to Sitronics JSC in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. Sitronics JSC's block covers 1,048,576 addresses.
What devices use 94C9B73?
Any network device with a MAC address starting 94:C9:B7:3 was manufactured by or for Sitronics JSC.