NADASNV

Any device whose MAC address begins with 9C:77:AA has a network interface built by NADASNV. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

9C:77:AA

Organization

NADASNV

Address

2203, T-dong, Poonglim I-won Plus Seongnam-si Gyeonggi-do KR 463-862

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.