What this means
The IEEE assigned the MA-M block E44CC73 to JSC "Svyaz Inginiring M". 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 E4:4C:C7:3, it is JSC "Svyaz Inginiring M" hardware.
Frequently Asked Questions
Who owns MAC prefix E44CC73?
E44CC73 is registered to JSC "Svyaz Inginiring M" 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. JSC "Svyaz Inginiring M"'s block covers 1,048,576 addresses.
What devices use E44CC73?
Any network device with a MAC address starting E4:4C:C7:3 was manufactured by or for JSC "Svyaz Inginiring M".