Joint Stock Company "Research Instinite "Masshtab"

Any device whose MAC address begins with 38:FF:13 has a network interface built by Joint Stock Company "Research Instinite "Masshtab". This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

38:FF:13

Organization

Joint Stock Company "Research Instinite "Masshtab"

Address

5A, Kantemirovskaya st. Saint-Petersburg RU 194100

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.