What this means
The IEEE assigned the MA-L block D42122 to Sercomm Corporation.. 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 D4:21:22, it is Sercomm Corporation. hardware.
Frequently Asked Questions
Who owns MAC prefix D42122?
D42122 is registered to Sercomm Corporation. 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. Sercomm Corporation.'s block covers 16,777,216 addresses.
What devices use D42122?
Any network device with a MAC address starting D4:21:22 was manufactured by or for Sercomm Corporation..