What this means
The IEEE assigned the MA-L block 78FDF1 to Shenzhen Huadian Communication 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:FD:F1, it is Shenzhen Huadian Communication Co., Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 78FDF1?
78FDF1 is registered to Shenzhen Huadian Communication 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 Huadian Communication Co., Ltd's block covers 16,777,216 addresses.
What devices use 78FDF1?
Any network device with a MAC address starting 78:FD:F1 was manufactured by or for Shenzhen Huadian Communication Co., Ltd.