Philips

Any device whose MAC address begins with 00:05:4E has a network interface built by Philips. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:05:4E

Organization

Philips

Address

1000 West Maude Avenue Sunnyvale CA US 94085-2810

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.