Zeo

Any device whose MAC address begins with 4C:98:EF has a network interface built by Zeo. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

4C:98:EF

Organization

Zeo

Address

320 Nevada St Newton MA US 02460

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.