What this means
The IEEE assigned the MA-L block D42DC5 to i-PRO Co., Ltd.. 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 D4:2D:C5, it is i-PRO Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix D42DC5?
D42DC5 is registered to i-PRO Co., Ltd. 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. i-PRO Co., Ltd.'s block covers 16,777,216 addresses.
What devices use D42DC5?
Any network device with a MAC address starting D4:2D:C5 was manufactured by or for i-PRO Co., Ltd..