Dunwoody joined in 2011, making it the second multi-county 911 system to span the county line from Fulton into DeKalb (the other being the city of Atlanta, which is also in both counties).
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The Chattahoochee River 911 Authority, also known as ChatComm, is the public-safety answering point for all emergency calls to 9-1-1 in Sandy Springs, Dunwoody, and Johns Creek, Georgia, in the northern part of metro Atlanta.
Mississippi River | River Thames | Amazon River | Columbia River | Hudson River | Colorado River | Potomac River | river | Ohio River | Missouri River | Delaware River | Murray River | River Tyne | Madeira River | Volga River | River Nene | River Clyde | River Trent | River Severn | Amur River | River Wear | Allegheny River | Red River | Dnieper River | Yarra River | Paraná River | River Tees | Fraser River | Yangtze River | Tocantins River |