What this means
The IEEE assigned the MA-L block 001F3D to Qbit 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 00:1F:3D, it is Qbit GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix 001F3D?
001F3D is registered to Qbit 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. Qbit GmbH's block covers 16,777,216 addresses.
What devices use 001F3D?
Any network device with a MAC address starting 00:1F:3D was manufactured by or for Qbit GmbH.