What this means
The IEEE assigned the MA-L block C8138B to Shenzhen Skyworth Digital Technology CO., Ltd. 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 C8:13:8B, it is Shenzhen Skyworth Digital Technology CO., Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix C8138B?
C8138B is registered to Shenzhen Skyworth Digital Technology CO., Ltd 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 Skyworth Digital Technology CO., Ltd's block covers 16,777,216 addresses.
What devices use C8138B?
Any network device with a MAC address starting C8:13:8B was manufactured by or for Shenzhen Skyworth Digital Technology CO., Ltd.