Haverford Systems Inc

Any device whose MAC address begins with DC:ED:84 has a network interface built by Haverford Systems Inc. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

DC:ED:84

Organization

Haverford Systems Inc

Address

152 Robbins Road Downingtown PA US 19335

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.