SHENZHEN Coolkit Technology CO.,LTD

Any device whose MAC address begins with 44:5D:5E has a network interface built by SHENZHEN Coolkit Technology CO.,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

44:5D:5E

Organization

SHENZHEN Coolkit Technology CO.,LTD

Address

B09 2nd Floor, T6 ArtZone XiLi, Nanshan Dist shenzhen guangdong CN 518110

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.