Medallion Instrumentation Systems

Any device whose MAC address begins with 70:59:57 has a network interface built by Medallion Instrumentation Systems. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

70:59:57

Organization

Medallion Instrumentation Systems

Address

17150 Hickory St Spring Lake MI US 49456

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.