AT&T Voucher and Coupon October 2021

AT&T is an American telecommunications company founded in 1877 that has long dominated the long distance and local telephone markets in the United States. In the past 20 years, it has been broken up and reorganized many times. It is now the largest local and long-distance telephone company in the United States, with its headquarters in the large city of Dallas, north Texas. The main business of the company is: Provide telephone service for domestic and international, make use of the submarine cable, submarine cable, communications satellites, can contact with 250 countries and regions, more than 147 countries and regions can provide direct dialing, business machines, data products and consumer products, telecom network system, various kinds of service and rental business, it also provides the products and services for government, The company attaches great importance to scientific research and developing new products.