What this means
The IEEE assigned the MA-L block ECEF17 to Sunplus Technology 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:EF:17, it is Sunplus Technology Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix ECEF17?
ECEF17 is registered to Sunplus Technology 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. Sunplus Technology Co., Ltd.'s block covers 16,777,216 addresses.
What devices use ECEF17?
Any network device with a MAC address starting EC:EF:17 was manufactured by or for Sunplus Technology Co., Ltd..