Seiko Epson Corporation

Any device whose MAC address begins with 00:00:48 has a network interface built by Seiko Epson 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

00:00:48

Organization

Seiko Epson Corporation

Address

80 HIROOKA SHIOJIRI-CITY japan JAPAN JP 399-07

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.