What this means
The IEEE assigned the MA-L block FC1D59 to I Smart Cities HK 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:1D:59, it is I Smart Cities HK Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix FC1D59?
FC1D59 is registered to I Smart Cities HK 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. I Smart Cities HK Ltd's block covers 16,777,216 addresses.
What devices use FC1D59?
Any network device with a MAC address starting FC:1D:59 was manufactured by or for I Smart Cities HK Ltd.