What this means
The IEEE assigned the MA-L block C4D4D0 to SHENZHEN TECNO TECHNOLOGY. 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 C4:D4:D0, it is SHENZHEN TECNO TECHNOLOGY hardware.
Frequently Asked Questions
Who owns MAC prefix C4D4D0?
C4D4D0 is registered to SHENZHEN TECNO TECHNOLOGY 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 TECNO TECHNOLOGY's block covers 16,777,216 addresses.
What devices use C4D4D0?
Any network device with a MAC address starting C4:D4:D0 was manufactured by or for SHENZHEN TECNO TECHNOLOGY.