What this means
The IEEE assigned the MA-L block B04545 to YACOUB Automation GmbH. 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 B0:45:45, it is YACOUB Automation GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix B04545?
B04545 is registered to YACOUB Automation GmbH 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. YACOUB Automation GmbH's block covers 16,777,216 addresses.
What devices use B04545?
Any network device with a MAC address starting B0:45:45 was manufactured by or for YACOUB Automation GmbH.