What this means
The IEEE assigned the MA-L block 74C76E to RTK-TECHNOLOGIES, LLC. 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:C7:6E, it is RTK-TECHNOLOGIES, LLC hardware.
Frequently Asked Questions
Who owns MAC prefix 74C76E?
74C76E is registered to RTK-TECHNOLOGIES, LLC 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. RTK-TECHNOLOGIES, LLC's block covers 16,777,216 addresses.
What devices use 74C76E?
Any network device with a MAC address starting 74:C7:6E was manufactured by or for RTK-TECHNOLOGIES, LLC.