This churn rate is the best in the U.S. telecom industry, with churn rates for Verizon (VZ) the second best at 0.94%. As the chart below shows, the churn rates for T-Mobile (TMUS) and Sprint (S) are 1.50% and 2.09%, respectivelyâmuch higher compared to AT&Tâs.Lower churn rates help companies save cost that they would otherwise incur acquiring new customers. So itâs an important parameter in the telecom industry.Enlarge Graph.s the chart below shows, the churn rates for T-Mobile (TMUS) and Sprint (S) are 1.50% and 2.09%, respectivelyâmuch higher compared to AT&Tâs. Lower churn rates help companies save cost that they would otherwise incur acquiring new customers. So itâs an important parameter in the telecom industry. Enlarge Graph.