Chongho information & communications

Any device whose MAC address begins with 00:0C:9C has a network interface built by Chongho information & communications. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:0C:9C

Organization

Chongho information & communications

Address

Chongho Bldg, #7-61 Yangjae-dong, Seocho Seoul KR 137-130

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.