What this means
The IEEE assigned the MA-L block ECF72B to HD DIGITAL TECH 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 EC:F7:2B, it is HD DIGITAL TECH CO., LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix ECF72B?
ECF72B is registered to HD DIGITAL TECH 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. HD DIGITAL TECH CO., LTD.'s block covers 16,777,216 addresses.
What devices use ECF72B?
Any network device with a MAC address starting EC:F7:2B was manufactured by or for HD DIGITAL TECH CO., LTD..