Zealabs srl

Any device whose MAC address begins with B4:66:98 has a network interface built by Zealabs srl. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

B4:66:98

Organization

Zealabs srl

Address

via Monte Grappa, 25 Lancenigo di Villorba Italy IT 31020

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.