Itron Inc

Any device whose MAC address begins with B4:23:30 has a network interface built by Itron Inc. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

B4:23:30

Organization

Itron Inc

Address

2111 N Molter Rd Liberty Lake WA US 99019

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.