Who owns MAC prefix E4A5EF?

E4A5EF is registered to TRON LINK ELECTRONICS CO., LTD. in the IEEE MA-L registry.

What devices use E4A5EF?

Any network device with a MAC address starting E4:A5:EF was manufactured by or for TRON LINK ELECTRONICS CO., LTD..

MA-L · OUI prefix

TRON LINK ELECTRONICS CO., LTD.

Any MAC address starting E4:A5:EF is registered to TRON LINK ELECTRONICS CO., LTD. in HK.

OUI prefix	E4A5EF
Vendor	TRON LINK ELECTRONICS CO., LTD.
Registry	MA-L (24-bit, large block)
Country	HK
Example MAC	E4:A5:EF:00:00:00

What this means

The IEEE assigned the MA-L block E4A5EF to TRON LINK ELECTRONICS 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:A5:EF, it is TRON LINK ELECTRONICS CO., LTD. hardware.

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