What this means
The IEEE assigned the MA-L block 30F028 to Bosch Sicherheitssysteme 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 30:F0:28, it is Bosch Sicherheitssysteme GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix 30F028?
30F028 is registered to Bosch Sicherheitssysteme 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 Sicherheitssysteme GmbH's block covers 16,777,216 addresses.
What devices use 30F028?
Any network device with a MAC address starting 30:F0:28 was manufactured by or for Bosch Sicherheitssysteme GmbH.