Who owns MAC prefix 04C3E63?

04C3E63 is registered to Extech Electronics Co., LTD. in the IEEE MA-M registry.

What devices use 04C3E63?

Any network device with a MAC address starting 04:C3:E6:3 was manufactured by or for Extech Electronics Co., LTD..

MA-M · OUI prefix

Extech Electronics Co., LTD.

Any MAC address starting 04:C3:E6:3 is registered to Extech Electronics Co., LTD. in TW.

OUI prefix	04C3E63
Vendor	Extech Electronics Co., LTD.
Registry	MA-M (28-bit, medium block)
Country	TW
Example MAC	04:C3:E6:3:00:00:00

What this means

The IEEE assigned the MA-M block 04C3E63 to Extech 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 04:C3:E6:3, it is Extech Electronics Co., LTD. hardware.

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