What this means
The IEEE assigned the MA-L block FC9DD8 to Beijing TongTongYiLian Science and Technology 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 FC:9D:D8, it is Beijing TongTongYiLian Science and Technology Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix FC9DD8?
FC9DD8 is registered to Beijing TongTongYiLian Science and Technology 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. Beijing TongTongYiLian Science and Technology Ltd.'s block covers 16,777,216 addresses.
What devices use FC9DD8?
Any network device with a MAC address starting FC:9D:D8 was manufactured by or for Beijing TongTongYiLian Science and Technology Ltd..