What this means
The IEEE assigned the MA-L block E4388C to Digital Products Limited. 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 E4:38:8C, it is Digital Products Limited hardware.
Frequently Asked Questions
Who owns MAC prefix E4388C?
E4388C is registered to Digital Products Limited 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. Digital Products Limited's block covers 16,777,216 addresses.
What devices use E4388C?
Any network device with a MAC address starting E4:38:8C was manufactured by or for Digital Products Limited.