What this means
The IEEE assigned the MA-L block 547F54 to INGENICO. 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 54:7F:54, it is INGENICO hardware.
Frequently Asked Questions
Who owns MAC prefix 547F54?
547F54 is registered to INGENICO in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. INGENICO's block covers 16,777,216 addresses.
What devices use 547F54?
Any network device with a MAC address starting 54:7F:54 was manufactured by or for INGENICO.