CUMMINS-ALLISON CORP.

Any device whose MAC address begins with 00:23:CF has a network interface built by CUMMINS-ALLISON CORP.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:23:CF

Organization

CUMMINS-ALLISON CORP.

Address

891 FEEHANVILLE DRIVE MT. PROSPECT IL US 60056

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.