What this means
The IEEE assigned the MA-L block 7CD9FE to New Cosmos Electric 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 7C:D9:FE, it is New Cosmos Electric Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 7CD9FE?
7CD9FE is registered to New Cosmos Electric 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. New Cosmos Electric Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 7CD9FE?
Any network device with a MAC address starting 7C:D9:FE was manufactured by or for New Cosmos Electric Co., Ltd..