What this means
The IEEE assigned the MA-L block 000B37 to MANUFACTURE DES MONTRES ROLEX SA. 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 00:0B:37, it is MANUFACTURE DES MONTRES ROLEX SA hardware.
Frequently Asked Questions
Who owns MAC prefix 000B37?
000B37 is registered to MANUFACTURE DES MONTRES ROLEX SA 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. MANUFACTURE DES MONTRES ROLEX SA's block covers 16,777,216 addresses.
What devices use 000B37?
Any network device with a MAC address starting 00:0B:37 was manufactured by or for MANUFACTURE DES MONTRES ROLEX SA.