Jablotron

Any device whose MAC address begins with 00:13:B0 has a network interface built by Jablotron. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:13:B0

Organization

Jablotron

Address

Pod Skalkou 33 Jablonec nad Nisou CZ 46601

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.