What this means
The IEEE assigned the MA-L block D0B33F to Shenzhen TINNO Mobile Technology Corp.. 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 D0:B3:3F, it is Shenzhen TINNO Mobile Technology Corp. hardware.
Frequently Asked Questions
Who owns MAC prefix D0B33F?
D0B33F is registered to Shenzhen TINNO Mobile Technology Corp. 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. Shenzhen TINNO Mobile Technology Corp.'s block covers 16,777,216 addresses.
What devices use D0B33F?
Any network device with a MAC address starting D0:B3:3F was manufactured by or for Shenzhen TINNO Mobile Technology Corp..