Longicorn, inc.

Any device whose MAC address begins with 44:ED:57 has a network interface built by Longicorn, inc.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

44:ED:57

Organization

Longicorn, inc.

Address

Rm1001-2, 10F, Byuksan Digital Valley1 Seoul KR 152-775

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.