Alcatel Canada Inc.

Any device whose MAC address begins with 00:80:21 has a network interface built by Alcatel Canada Inc.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:80:21

Organization

Alcatel Canada Inc.

Address

349 Terry Fox Drive Kanata Ontario CA K2K 2V6

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.