What this means
The IEEE assigned the MA-M block 7419F88 to Quest Payment Systems. 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 74:19:F8:8, it is Quest Payment Systems hardware.
Frequently Asked Questions
Who owns MAC prefix 7419F88?
7419F88 is registered to Quest Payment Systems 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. Quest Payment Systems's block covers 1,048,576 addresses.
What devices use 7419F88?
Any network device with a MAC address starting 74:19:F8:8 was manufactured by or for Quest Payment Systems.