What this means
The IEEE assigned the MA-L block 18937F to AMPAK Technology, Inc.. 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 18:93:7F, it is AMPAK Technology, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 18937F?
18937F is registered to AMPAK Technology, Inc. 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. AMPAK Technology, Inc.'s block covers 16,777,216 addresses.
What devices use 18937F?
Any network device with a MAC address starting 18:93:7F was manufactured by or for AMPAK Technology, Inc..