What this means
The IEEE assigned the MA-L block E45D52 to Avaya 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 E4:5D:52, it is Avaya Inc hardware.
Frequently Asked Questions
Who owns MAC prefix E45D52?
E45D52 is registered to Avaya 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. Avaya Inc's block covers 16,777,216 addresses.
What devices use E45D52?
Any network device with a MAC address starting E4:5D:52 was manufactured by or for Avaya Inc.