What this means
The IEEE assigned the MA-L block 00C0E4 to SIEMENS BUILDING. 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:C0:E4, it is SIEMENS BUILDING hardware.
Frequently Asked Questions
Who owns MAC prefix 00C0E4?
00C0E4 is registered to SIEMENS BUILDING 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. SIEMENS BUILDING's block covers 16,777,216 addresses.
What devices use 00C0E4?
Any network device with a MAC address starting 00:C0:E4 was manufactured by or for SIEMENS BUILDING.