What this means
The IEEE assigned the MA-L block 78C4AB to Shenzhen Runsil 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 78:C4:AB, it is Shenzhen Runsil Technology Co.,Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 78C4AB?
78C4AB is registered to Shenzhen Runsil 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. Shenzhen Runsil Technology Co.,Ltd's block covers 16,777,216 addresses.
What devices use 78C4AB?
Any network device with a MAC address starting 78:C4:AB was manufactured by or for Shenzhen Runsil Technology Co.,Ltd.