What this means
The IEEE assigned the MA-L block 90EF4A to Dongguan Liesheng Electronic 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 90:EF:4A, it is Dongguan Liesheng Electronic Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 90EF4A?
90EF4A is registered to Dongguan Liesheng Electronic 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. Dongguan Liesheng Electronic Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 90EF4A?
Any network device with a MAC address starting 90:EF:4A was manufactured by or for Dongguan Liesheng Electronic Co., Ltd..