What this means
The IEEE assigned the MA-L block F4E142 to Delta Elektronika BV. 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 F4:E1:42, it is Delta Elektronika BV hardware.
Frequently Asked Questions
Who owns MAC prefix F4E142?
F4E142 is registered to Delta Elektronika BV 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. Delta Elektronika BV's block covers 16,777,216 addresses.
What devices use F4E142?
Any network device with a MAC address starting F4:E1:42 was manufactured by or for Delta Elektronika BV.