What this means
The IEEE assigned the MA-L block 001A39 to Merten GmbH&CoKG. 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 00:1A:39, it is Merten GmbH&CoKG hardware.
Frequently Asked Questions
Who owns MAC prefix 001A39?
001A39 is registered to Merten GmbH&CoKG 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. Merten GmbH&CoKG's block covers 16,777,216 addresses.
What devices use 001A39?
Any network device with a MAC address starting 00:1A:39 was manufactured by or for Merten GmbH&CoKG.