e-Tek Labs, Inc.

Any device whose MAC address begins with 00:50:0C has a network interface built by e-Tek Labs, 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

00:50:0C

Organization

e-Tek Labs, Inc.

Address

1057 EAST HENRIETTA RD. ROCHESTER NY US 14623

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.