What this means
The IEEE assigned the MA-L block 94A40C to Diehl Metering 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 94:A4:0C, it is Diehl Metering GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix 94A40C?
94A40C is registered to Diehl Metering 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. Diehl Metering GmbH's block covers 16,777,216 addresses.
What devices use 94A40C?
Any network device with a MAC address starting 94:A4:0C was manufactured by or for Diehl Metering GmbH.