lemonbeat GmbH

Any device whose MAC address begins with 18:61:C7 has a network interface built by lemonbeat GmbH. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

18:61:C7

Organization

lemonbeat GmbH

Address

Deutsche Str. 5 Dortmund DE 44339

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.