What is the telephone number for customer service? 1-800-566-0065, Customers can also use this number to reach to the customer service representatives of the company. 1-800-238-0271 is the fax number of the company, which can be used to send the orders.What is prepaid customer service number? The Customer Service Phone Number of ATT Prepaid is: 1-800-361-4470..What is the telephone number for direct tv customer service? Direct Tv Customer Service Phone Number. The Customer Service Phone Number of Direct Tv is: 1-888-777-2454/1-800-657-9921. DIRECTV presents additional 285 programs with more than 170 HD channels in Dolby-Digital 5.1 theater-quality sound.What is the customer service number for tsp? The Customer Service Phone Number of Tsp.gov is: +1-877-968-3778, +1-877-847-4385(TDD), +1-404-233-4400.