Shanghai Neardi Technologies Co. Ltd.

Any device whose MAC address begins with 24:EF:B4 has a network interface built by Shanghai Neardi Technologies 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

24:EF:B4

Organization

Shanghai Neardi Technologies Co. Ltd.

Address

807, Bldg 1, Lane 1505, Lianhang Rd Minhang District Shanghai CN 201112

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.