Northrop Grumman Systems Corp.

Any device whose MAC address begins with 00:19:8A has a network interface built by Northrop Grumman Systems 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

00:19:8A

Organization

Northrop Grumman Systems Corp.

Address

7055 Troy Hill Drive Elkridge Maryland US 21075

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.