ER-Telecom

Any device whose MAC address begins with 34:41:A8 has a network interface built by ER-Telecom. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

34:41:A8

Organization

ER-Telecom

Address

Ovchinnikovskaya embankment, 20, Building 1 Moscow RU 115324

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.