(American Telephone & Telegraph) AT & T Customer Service

AT&T (American Telephone & Telegraph) is on top of the line in the telecommunications industry. Founded by Bell Telephone Company on 5 October 1983 in Delaware, United States the conglomerate is headquartered in downtown Dallas, Texas, United States with Randall L. Stephenson as its CEO. AT&T is world’s second largest provider of mobile phone services, AT & … Read more