AT&Tâs churn rate in the second quarter of 2014 stood at 1.47 percent, the second lowest of all the wireless carriers in the U.S. The Texas-based companyâs churn rate has remained relatively stable in recent years, although it has risen slightly since it was at its lowest of 1.31 percent in 2010.T&Tâs churn rate in the second quarter of 2014 stood at 1.47 percent, the second lowest of all the wireless carriers in the U.S. The Texas-based companyâs churn rate has remained relatively stable in recent years, although it has risen slightly since it was at its lowest of 1.31 percent in 2010.