UPDATE 9:39 p.m. March 8: Police are reporting the outage has been resolved. Original post: Some police departments in the Dallas-Fort Worth area and across the state are reporting that 911 calls from AT&T cellular phones are failing. Police departments are directing residents to nonemergency numbers until the outage is fixed. Grapevine Police Department is reporting AT&T 911 seems to be working, but is listing the nonemergency number in case some callers cannot get through.