Siemens Healthcare Diagnostics, Inc

Any device whose MAC address begins with 20:E7:91 has a network interface built by Siemens Healthcare Diagnostics, 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

20:E7:91

Organization

Siemens Healthcare Diagnostics, Inc

Address

2 Edgewater Drive Norwood MA US 02062

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.