GRAPHON CORPORATION

Any device whose MAC address begins with 00:80:DB has a network interface built by GRAPHON CORPORATION. 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:DB

Organization

GRAPHON CORPORATION

Address

1506 DELL AVE - # CAMPBELL CA VE 95008-6911

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.