Weber-Stephen Products LLC

Any device whose MAC address begins with 70:91:8F has a network interface built by Weber-Stephen Products 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

70:91:8F

Organization

Weber-Stephen Products LLC

Address

1415 S. Roselle Rd Palatine IL US 60067

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.