Westermo Network Technologies AB

Any device whose MAC address begins with 00:07:7C has a network interface built by Westermo Network Technologies AB. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:07:7C

Organization

Westermo Network Technologies AB

Address

Stora Sundby Sweden SE SE-640 40

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.