What this means
The IEEE assigned the MA-L block 303D08 to GLINTT TES S.A.. 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 30:3D:08, it is GLINTT TES S.A. hardware.
Frequently Asked Questions
Who owns MAC prefix 303D08?
303D08 is registered to GLINTT TES S.A. 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. GLINTT TES S.A.'s block covers 16,777,216 addresses.
What devices use 303D08?
Any network device with a MAC address starting 30:3D:08 was manufactured by or for GLINTT TES S.A..