YMax Telecom Ltd.

Any device whose MAC address begins with 00:21:76 has a network interface built by YMax Telecom Ltd.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:21:76

Organization

YMax Telecom Ltd.

Address

11 Moshe Levi str. Rishon Le Zion IL 75658

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.