ST Electronics (Info-Security) Pte Ltd

Any device whose MAC address begins with 00:25:73 has a network interface built by ST Electronics (Info-Security) Pte 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

00:25:73

Organization

ST Electronics (Info-Security) Pte Ltd

Address

100, Jurong East Street 21, ST Electronics Jurong East Bldg SG 609602

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.