What this means
The IEEE assigned the MA-L block 9C04EB 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 9C:04:EB, it is Apple, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 9C04EB?
9C04EB 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 9C04EB?
Any network device with a MAC address starting 9C:04:EB was manufactured by or for Apple, Inc..