Procter & Gamble Company

Any device whose MAC address begins with 34:CB:1A has a network interface built by Procter & Gamble Company. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

34:CB:1A

Organization

Procter & Gamble Company

Address

2 Procter & Gamble Plaza Cincinnati OH US 45202

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.