What this means
The IEEE assigned the MA-L block 00801F to KRUPP ATLAS ELECTRONIK 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 00:80:1F, it is KRUPP ATLAS ELECTRONIK GMBH hardware.
Frequently Asked Questions
Who owns MAC prefix 00801F?
00801F is registered to KRUPP ATLAS ELECTRONIK 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. KRUPP ATLAS ELECTRONIK GMBH's block covers 16,777,216 addresses.
What devices use 00801F?
Any network device with a MAC address starting 00:80:1F was manufactured by or for KRUPP ATLAS ELECTRONIK GMBH.