What this means
The IEEE assigned the MA-L block 0013CB to Zenitel Norway AS. 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 00:13:CB, it is Zenitel Norway AS hardware.
Frequently Asked Questions
Who owns MAC prefix 0013CB?
0013CB is registered to Zenitel Norway AS 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. Zenitel Norway AS's block covers 16,777,216 addresses.
What devices use 0013CB?
Any network device with a MAC address starting 00:13:CB was manufactured by or for Zenitel Norway AS.