What this means
The IEEE assigned the MA-L block 44CC6E to Rockwell Automation. 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 44:CC:6E, it is Rockwell Automation hardware.
Frequently Asked Questions
Who owns MAC prefix 44CC6E?
44CC6E is registered to Rockwell Automation 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. Rockwell Automation's block covers 16,777,216 addresses.
What devices use 44CC6E?
Any network device with a MAC address starting 44:CC:6E was manufactured by or for Rockwell Automation.