Cisco-Linksys, LLC

Any device whose MAC address begins with 58:6D:8F has a network interface built by Cisco-Linksys, LLC. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

58:6D:8F

Organization

Cisco-Linksys, LLC

Address

121 Theory Drive Irvine California US 92612

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.