What this means
The IEEE assigned the MA-L block A41242 to NEC Platforms, Ltd.. 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 A4:12:42, it is NEC Platforms, Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix A41242?
A41242 is registered to NEC Platforms, Ltd. 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. NEC Platforms, Ltd.'s block covers 16,777,216 addresses.
What devices use A41242?
Any network device with a MAC address starting A4:12:42 was manufactured by or for NEC Platforms, Ltd..