What this means
The IEEE assigned the MA-M block 40F3857 to PALAZZETTI LELIO SPA. 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 40:F3:85:7, it is PALAZZETTI LELIO SPA hardware.
Frequently Asked Questions
Who owns MAC prefix 40F3857?
40F3857 is registered to PALAZZETTI LELIO SPA 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. PALAZZETTI LELIO SPA's block covers 1,048,576 addresses.
What devices use 40F3857?
Any network device with a MAC address starting 40:F3:85:7 was manufactured by or for PALAZZETTI LELIO SPA.