Wren Sound Systems, LLC

Any device whose MAC address begins with 74:FF:7D has a network interface built by Wren Sound Systems, LLC. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

74:FF:7D

Organization

Wren Sound Systems, LLC

Address

169 Gateshead Way Phoenixville PA US 19460

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.