What this means
The IEEE assigned the MA-L block 083F21 to Motorola Mobility LLC, a Lenovo Company. 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 08:3F:21, it is Motorola Mobility LLC, a Lenovo Company hardware.
Frequently Asked Questions
Who owns MAC prefix 083F21?
083F21 is registered to Motorola Mobility LLC, a Lenovo Company 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. Motorola Mobility LLC, a Lenovo Company's block covers 16,777,216 addresses.
What devices use 083F21?
Any network device with a MAC address starting 08:3F:21 was manufactured by or for Motorola Mobility LLC, a Lenovo Company.