Heyrex Limited

Any device whose MAC address begins with DC:30:9C has a network interface built by Heyrex 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

DC:30:9C

Organization

Heyrex Limited

Address

Level 1, 236-256 Karori Road Wellington NZ 6147

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.