Who owns MAC prefix 3873EA5?

3873EA5 is registered to ISTCONTROL in the IEEE MA-M registry.

What devices use 3873EA5?

Any network device with a MAC address starting 38:73:EA:5 was manufactured by or for ISTCONTROL.

MA-M · OUI prefix

ISTCONTROL

Any MAC address starting 38:73:EA:5 is registered to ISTCONTROL in KR.

OUI prefix	3873EA5
Vendor	ISTCONTROL
Registry	MA-M (28-bit, medium block)
Country	KR
Example MAC	38:73:EA:5:00:00:00

What this means

The IEEE assigned the MA-M block 3873EA5 to ISTCONTROL. 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 38:73:EA:5, it is ISTCONTROL hardware.

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