What this means
The IEEE assigned the MA-L block 78EB39 to Instituto Nacional de Tecnología Industrial. 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 78:EB:39, it is Instituto Nacional de Tecnología Industrial hardware.
Frequently Asked Questions
Who owns MAC prefix 78EB39?
78EB39 is registered to Instituto Nacional de Tecnología Industrial 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. Instituto Nacional de Tecnología Industrial's block covers 16,777,216 addresses.
What devices use 78EB39?
Any network device with a MAC address starting 78:EB:39 was manufactured by or for Instituto Nacional de Tecnología Industrial.