Es-tech International

Any device whose MAC address begins with 50:2B:98 has a network interface built by Es-tech International. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

50:2B:98

Organization

Es-tech International

Address

228-70, Saneop-ro 155beon-gil, Gwonseon-gu, Suwon-si, Gyeonggi-do, Korea Suwon KR 16648

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.