Schlumberger

Any device whose MAC address begins with 00:04:7B has a network interface built by Schlumberger. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:04:7B

Organization

Schlumberger

Address

Sugar Land Product Center Sugar Land TX US 77478

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.