Altasec technology corporation

Any device whose MAC address begins with 08:7D:21 has a network interface built by Altasec technology corporation. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

08:7D:21

Organization

Altasec technology corporation

Address

9F-1, No.75, Sec.1, Xintai 5th Rd., New Taipei City Taiwan TW 221

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.