WILLIAMS COMMUNICATIONS GROUP

Any device whose MAC address begins with 00:10:0A has a network interface built by WILLIAMS COMMUNICATIONS GROUP. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:10:0A

Organization

WILLIAMS COMMUNICATIONS GROUP

Address

ADVANCED TECHNOLOGIES TULSA OK US 74103

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.