ACE Antenna Co., ltd

Any device whose MAC address begins with A0:21:8B has a network interface built by ACE Antenna Co., 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

A0:21:8B

Organization

ACE Antenna Co., ltd

Address

Dong Van II Industrial Zone, Bach Thuong Ward, Duy Tien Town Hanam VN 400000

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.