What this means
The IEEE assigned the MA-L block E03E4A to Cavanagh Group International. 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 E0:3E:4A, it is Cavanagh Group International hardware.
Frequently Asked Questions
Who owns MAC prefix E03E4A?
E03E4A is registered to Cavanagh Group International 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. Cavanagh Group International's block covers 16,777,216 addresses.
What devices use E03E4A?
Any network device with a MAC address starting E0:3E:4A was manufactured by or for Cavanagh Group International.