CONEXANT SYSTEMS, INC.

Any device whose MAC address begins with 00:30:CD has a network interface built by CONEXANT 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:CD

Organization

CONEXANT SYSTEMS, INC.

Address

4311 JAMBOREE ROAD NEWPORT BEACH CA US 92660

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.