Oxygen Broadband s.a.

Any device whose MAC address begins with 24:3F:30 has a network interface built by Oxygen Broadband s.a.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

24:3F:30

Organization

Oxygen Broadband s.a.

Address

2 Messogeion ave., Athens Tower Athens Attiki GR 11527

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.