What this means
The IEEE assigned the MA-L block 14D19E to Apple, 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 14:D1:9E, it is Apple, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 14D19E?
14D19E is registered to Apple, 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. Apple, Inc.'s block covers 16,777,216 addresses.
What devices use 14D19E?
Any network device with a MAC address starting 14:D1:9E was manufactured by or for Apple, Inc..