Commtech, Inc.

Any device whose MAC address begins with 00:04:FB has a network interface built by Commtech, 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

00:04:FB

Organization

Commtech, Inc.

Address

9011 E. 37th Street Wichita KS US 67226-2006

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.