What this means
The IEEE assigned the MA-L block C816A5 to Masimo Corporation. 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 C8:16:A5, it is Masimo Corporation hardware.
Frequently Asked Questions
Who owns MAC prefix C816A5?
C816A5 is registered to Masimo Corporation 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. Masimo Corporation's block covers 16,777,216 addresses.
What devices use C816A5?
Any network device with a MAC address starting C8:16:A5 was manufactured by or for Masimo Corporation.