What this means
The IEEE assigned the MA-L block 042605 to Bosch Building 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 04:26:05, it is Bosch Building Automation GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix 042605?
042605 is registered to Bosch Building 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. Bosch Building Automation GmbH's block covers 16,777,216 addresses.
What devices use 042605?
Any network device with a MAC address starting 04:26:05 was manufactured by or for Bosch Building Automation GmbH.