What this means
The IEEE assigned the MA-L block 20D75A to Posh Mobile Limited. 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 20:D7:5A, it is Posh Mobile Limited hardware.
Frequently Asked Questions
Who owns MAC prefix 20D75A?
20D75A is registered to Posh Mobile Limited 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. Posh Mobile Limited's block covers 16,777,216 addresses.
What devices use 20D75A?
Any network device with a MAC address starting 20:D7:5A was manufactured by or for Posh Mobile Limited.