What this means
The IEEE assigned the MA-L block D88A3B to UNIT-EM. 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 D8:8A:3B, it is UNIT-EM hardware.
Frequently Asked Questions
Who owns MAC prefix D88A3B?
D88A3B is registered to UNIT-EM 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. UNIT-EM's block covers 16,777,216 addresses.
What devices use D88A3B?
Any network device with a MAC address starting D8:8A:3B was manufactured by or for UNIT-EM.