Ascom Tateco AB

Any device whose MAC address begins with 00:01:3E has a network interface built by Ascom Tateco AB. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:01:3E

Organization

Ascom Tateco AB

Address

Box 8783 SE

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.