What this means
The IEEE assigned the MA-L block 74731D to ifm electronic gmbh. 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 74:73:1D, it is ifm electronic gmbh hardware.
Frequently Asked Questions
Who owns MAC prefix 74731D?
74731D is registered to ifm electronic gmbh 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. ifm electronic gmbh's block covers 16,777,216 addresses.
What devices use 74731D?
Any network device with a MAC address starting 74:73:1D was manufactured by or for ifm electronic gmbh.