What this means
The IEEE assigned the MA-M block F42055B to Synaps Technology S.r.l.. 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 F4:20:55:B, it is Synaps Technology S.r.l. hardware.
Frequently Asked Questions
Who owns MAC prefix F42055B?
F42055B is registered to Synaps Technology S.r.l. in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. Synaps Technology S.r.l.'s block covers 1,048,576 addresses.
What devices use F42055B?
Any network device with a MAC address starting F4:20:55:B was manufactured by or for Synaps Technology S.r.l..