CMITECH

Any device whose MAC address begins with 50:3F:98 has a network interface built by CMITECH. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

50:3F:98

Organization

CMITECH

Address

904-ho, 25, Simin-daero 248beon-gil, Dongan-gu Anyang-si Gyeonggi-do KR 14067

Source

IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.