FIBERMUX

Any device whose MAC address begins with 00:80:51 has a network interface built by FIBERMUX. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:80:51

Organization

FIBERMUX

Address

9310 TOPANGA CANYON BLVD. CHATSWORTH CA US 91311

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.