Officials say 911 service has been restored for AT&T wireless users in Bucks, Delaware, Chester and Montgomery counties in Pennsylvania.
AT&T wireless users were unable to make 911 calls in all four counties for at least an hour Wednesday night. Similar issues for AT&T users were reported across the country as well, including in Washington, DC, Colorado, Florida, Indiana, and Texas.
Dispatchers provided alternative emergency numbers for residents of all four counties in Pennsylvania.
While officials with AT&T say the issues have been resolved, they have not yet revealed what caused the initial 911 service problems.