What this means
The IEEE assigned the MA-L block CC3F1D to HMS Industrial Networks SLU. 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 CC:3F:1D, it is HMS Industrial Networks SLU hardware.
Frequently Asked Questions
Who owns MAC prefix CC3F1D?
CC3F1D is registered to HMS Industrial Networks SLU 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. HMS Industrial Networks SLU's block covers 16,777,216 addresses.
What devices use CC3F1D?
Any network device with a MAC address starting CC:3F:1D was manufactured by or for HMS Industrial Networks SLU.