Sunmyung Electronics Co., LTD

Any device whose MAC address begins with 00:13:AC has a network interface built by Sunmyung Electronics 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

00:13:AC

Organization

Sunmyung Electronics Co., LTD

Address

LARGO-PLAZA 8F, Janghang-Dong Koyang Kyungki KR 411-837

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.