TeconGroup, Inc

Any device whose MAC address begins with 20:B7:30 has a network interface built by TeconGroup, Inc. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

20:B7:30

Organization

TeconGroup, Inc

Address

3rd Khoroshevskaya str., 20, floor 1, room 112 Moscow RU 123423

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.