What this means
The IEEE assigned the MA-M block 5C5A4CB to ESME SOLUTIONS. 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 5C:5A:4C:B, it is ESME SOLUTIONS hardware.
Frequently Asked Questions
Who owns MAC prefix 5C5A4CB?
5C5A4CB is registered to ESME SOLUTIONS 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. ESME SOLUTIONS's block covers 1,048,576 addresses.
What devices use 5C5A4CB?
Any network device with a MAC address starting 5C:5A:4C:B was manufactured by or for ESME SOLUTIONS.