What this means
The IEEE assigned the MA-L block 3802E3 to YICHEN (SHENZHEN) 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 38:02:E3, it is YICHEN (SHENZHEN) TECHNOLOGY CO.,LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 3802E3?
3802E3 is registered to YICHEN (SHENZHEN) 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. YICHEN (SHENZHEN) TECHNOLOGY CO.,LTD's block covers 16,777,216 addresses.
What devices use 3802E3?
Any network device with a MAC address starting 38:02:E3 was manufactured by or for YICHEN (SHENZHEN) TECHNOLOGY CO.,LTD.