Doorking Inc.

Any device whose MAC address begins with 00:19:64 has a network interface built by Doorking 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

00:19:64

Organization

Doorking Inc.

Address

120 Glasgow St. Inglewood CA. US 90301

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.