What this means
The IEEE assigned the MA-L block 7C4B78 to Red Sun Synthesis Pte 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 7C:4B:78, it is Red Sun Synthesis Pte Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 7C4B78?
7C4B78 is registered to Red Sun Synthesis Pte 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. Red Sun Synthesis Pte Ltd's block covers 16,777,216 addresses.
What devices use 7C4B78?
Any network device with a MAC address starting 7C:4B:78 was manufactured by or for Red Sun Synthesis Pte Ltd.