Broadcom Limited

Any device whose MAC address begins with 34:D8:68 has a network interface built by Broadcom Limited. 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:D8:68

Organization

Broadcom Limited

Address

15191 Alton Parkway Irvine CA US 92618

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.