What this means
The IEEE assigned the MA-L block DC0B1A to ADB Broadband Italia. 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 DC:0B:1A, it is ADB Broadband Italia hardware.
Frequently Asked Questions
Who owns MAC prefix DC0B1A?
DC0B1A is registered to ADB Broadband Italia 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. ADB Broadband Italia's block covers 16,777,216 addresses.
What devices use DC0B1A?
Any network device with a MAC address starting DC:0B:1A was manufactured by or for ADB Broadband Italia.