RF WINDOW CO., LTD.

Any device whose MAC address begins with E4:8A:D5 has a network interface built by RF WINDOW CO., LTD.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

E4:8A:D5

Organization

RF WINDOW CO., LTD.

Address

14F, Daerung Posttower3 Seoul KR 152-746

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.