What this means
The IEEE assigned the MA-L block 00157B to Leuze electronic GmbH + Co. KG. 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 00:15:7B, it is Leuze electronic GmbH + Co. KG hardware.
Frequently Asked Questions
Who owns MAC prefix 00157B?
00157B is registered to Leuze electronic GmbH + Co. KG 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. Leuze electronic GmbH + Co. KG's block covers 16,777,216 addresses.
What devices use 00157B?
Any network device with a MAC address starting 00:15:7B was manufactured by or for Leuze electronic GmbH + Co. KG.