Armstrong Monitoring Corp

Any device whose MAC address begins with 4C:80:4F has a network interface built by Armstrong Monitoring 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

4C:80:4F

Organization

Armstrong Monitoring Corp

Address

215 Colonnade Rd Nepean Ontario CA K2E 7K3

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.