Interphone Service
Any device whose MAC address begins with FC:58:DF has a network interface built by Interphone Service. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.
- OUI prefix
- FC:58:DF
- Organization
- Interphone Service
- Address
- Inwestorow, 8 Mielec Select a state or province PL 39-300
- 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.