What this means
The IEEE assigned the MA-M block C4A5594 to National Company of Telecommunication and Information Security. 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 C4:A5:59:4, it is National Company of Telecommunication and Information Security hardware.
Frequently Asked Questions
Who owns MAC prefix C4A5594?
C4A5594 is registered to National Company of Telecommunication and Information Security 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. National Company of Telecommunication and Information Security's block covers 1,048,576 addresses.
What devices use C4A5594?
Any network device with a MAC address starting C4:A5:59:4 was manufactured by or for National Company of Telecommunication and Information Security.