JANUS, spol. s r.o.

Any device whose MAC address begins with DC:82:5B has a network interface built by JANUS, spol. s r.o.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

DC:82:5B

Organization

JANUS, spol. s r.o.

Address

Sarajevska 8 Prague Czech Republic CZ 12000

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.