SSOMA SECURITY

Any device whose MAC address begins with 7C:39:20 has a network interface built by SSOMA SECURITY. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

7C:39:20

Organization

SSOMA SECURITY

Address

Unit 703, Daeryung Technotown 13th, Geumcheongu Seoul KR 153754

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.