What this means
The IEEE assigned the MA-L block 240BB1 to KOSTAL Industrie Elektrik 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 24:0B:B1, it is KOSTAL Industrie Elektrik GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix 240BB1?
240BB1 is registered to KOSTAL Industrie Elektrik 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. KOSTAL Industrie Elektrik GmbH's block covers 16,777,216 addresses.
What devices use 240BB1?
Any network device with a MAC address starting 24:0B:B1 was manufactured by or for KOSTAL Industrie Elektrik GmbH.