TLS Corporation

Any device whose MAC address begins with 58:50:AB has a network interface built by TLS Corporation. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

58:50:AB

Organization

TLS Corporation

Address

1241 Superior Ave. Cleveland OH US 44114

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.