EL-TECH, INC.

Any device whose MAC address begins with 00:18:86 has a network interface built by EL-TECH, 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

00:18:86

Organization

EL-TECH, INC.

Address

A-711, WOOLIM LION'S VALLEY, 371-28 SEOUL KR 150-834

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.