Charles River Laboratories

Any device whose MAC address begins with 70:BF:3E has a network interface built by Charles River Laboratories. 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:BF:3E

Organization

Charles River Laboratories

Address

1023 Wappoo Road Suite 43B Charleston SC US 29407

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.