What this means
The IEEE assigned the MA-L block E4C1F1 to SHENZHEN SPOTMAU INFORMATION TECHNOLIGY 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 E4:C1:F1, it is SHENZHEN SPOTMAU INFORMATION TECHNOLIGY CO., Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix E4C1F1?
E4C1F1 is registered to SHENZHEN SPOTMAU INFORMATION TECHNOLIGY 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 SPOTMAU INFORMATION TECHNOLIGY CO., Ltd's block covers 16,777,216 addresses.
What devices use E4C1F1?
Any network device with a MAC address starting E4:C1:F1 was manufactured by or for SHENZHEN SPOTMAU INFORMATION TECHNOLIGY CO., Ltd.