SYMMETRICAL TECHNOLOGIES

Any device whose MAC address begins with 00:20:FF has a network interface built by SYMMETRICAL TECHNOLOGIES. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:20:FF

Organization

SYMMETRICAL TECHNOLOGIES

Address

500 HUNTMAR PARK DRIVE HERNDON VA US 22070

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.