3CX

Any device whose MAC address begins with 00:60:3D has a network interface built by 3CX. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:60:3D

Organization

3CX

Address

2085 HAMILTON AVE., -STE.#220 SAN JOSE CA US 95125

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.