CSE-Servelec Limited

Any device whose MAC address begins with 18:9A:67 has a network interface built by CSE-Servelec Limited. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

18:9A:67

Organization

CSE-Servelec Limited

Address

Rotherside Road Sheffield GB S21 4HL

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.