What this means
The IEEE assigned the MA-L block 40827B to STMicroelectronics Rousset SAS. 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 40:82:7B, it is STMicroelectronics Rousset SAS hardware.
Frequently Asked Questions
Who owns MAC prefix 40827B?
40827B is registered to STMicroelectronics Rousset SAS 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. STMicroelectronics Rousset SAS's block covers 16,777,216 addresses.
What devices use 40827B?
Any network device with a MAC address starting 40:82:7B was manufactured by or for STMicroelectronics Rousset SAS.