Verizon is a world-leading communications solutions service provider, formed from the merger of BellAtlantic and GTE. It is the largest wireless communications company and local telephone company in the United States, and the largest 4GLTE wireless network provider, with 150 customers worldwide. Provide comprehensive communication solutions to customers in multiple countries and regions.

L-3 Communications Holdings, Inc. is an American company founded in 1997. Its main business is aerospace and defense communication systems. It provides a variety of aerospace and defense products and services. It is the world's largest one of the defense contractors.

Cox Communications is the third largest cable television operator in the United States. The company provides users with communication services such as television, telephone, broadband, home security and wireless communications.

Qualcomm is an American wireless communications R&D company founded in 1985. It is headquartered in San Diego, California, and is a NASDAQ-listed company. Qualcomm's main business includes CDMA technology, MediaFLO, Qualcomm Snapdragon processor (Snapdragon), etc.

AT&T (American Telephone & Telegraph) is the largest local and long-distance telephone company in the United States. Founded in 1877, it is one of the world's top 500 companies. Its main businesses include telephone, television, and mobile communications.