CMOS SYSTEMS, INC.

Any device whose MAC address begins with 00:30:6B has a network interface built by CMOS SYSTEMS, 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

00:30:6B

Organization

CMOS SYSTEMS, INC.

Address

23440 HAWTHORNE BLVD-STE #290 TORRANCE CA US 90505

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.