China Mobile Iot Limited company

Any device whose MAC address begins with 1C:78:4E has a network interface built by China Mobile Iot Limited company. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

1C:78:4E

Organization

China Mobile Iot Limited company

Address

No. 8 Yangliu North Road, Yubei District, Chongqing, China Chong Qing Chong Qing CN 401120

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.