SMAR Laboratories Corp.

Any device whose MAC address begins with 00:30:5C has a network interface built by SMAR Laboratories Corp.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:30:5C

Organization

SMAR Laboratories Corp.

Address

10960 Millridge North - Ste. #107 Houston TX US 77070

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.