NXP Semiconductors Taiwan Ltd.

Any device whose MAC address begins with 44:D4:65 has a network interface built by NXP Semiconductors Taiwan 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

44:D4:65

Organization

NXP Semiconductors Taiwan Ltd.

Address

No. 10, Jing 5th Rd., Nanzi Dist., Kaohsiung City 811643, Taiwan Nanzi Dist. Kaohsiung TW 811643

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.