Emerson

Any device whose MAC address begins with 10:3A:5D has a network interface built by Emerson. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

10:3A:5D

Organization

Emerson

Address

6021 Innovation Blvd Shakopee MN US 55379

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.