China Mobile IOT Company Limited

Any device whose MAC address begins with 48:21:6C has a network interface built by China Mobile IOT Company Limited. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

48:21:6C

Organization

China Mobile IOT Company Limited

Address

Building D3,No.8 Yangliu North Road,Yubei District CHONGQING CHONGQING CN 401121

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.