If you are encountering AT&T related problems then first try to resolve the issues on your own. You can solve the issue by searching the solution online or by reading the blogs and articles related to the problem if then too you are not able to resolve the issue then you can avail of AT&T customer service by giving a ring at+1-844-658-6888. www.contactcustomer-service.com/att-customer-service-phone-number/