CELL service constantly searching and no service

This morning my iPhone 6’s cellular data has stopped working.  All updates are current. It’s  continuously “searching“. Phone will only work when connected to WiFi. Stopped working at work and 10 hours later at home, the phone still has no service. Is there something wrong w/AT & T's service in FL right now?  What is going on?  HELP how do I fix this? I tired using the trouble shooter and it says there is are no problems detected in the area.