What this means
The IEEE assigned the MA-L block 001CDC to Custom Computer Services, Inc.. 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 00:1C:DC, it is Custom Computer Services, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 001CDC?
001CDC is registered to Custom Computer Services, Inc. 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. Custom Computer Services, Inc.'s block covers 16,777,216 addresses.
What devices use 001CDC?
Any network device with a MAC address starting 00:1C:DC was manufactured by or for Custom Computer Services, Inc..