The "Belmont" Office
Around 1922, the new Belmont office was opened on the Northwest side. This office may have originally been the Atlanta Telephone Company's Chattahoochee office. This was the last manual office to be built. The age of dial service was about to begin.

The Belmont Office Conversion
The Belmont office was converted to dial service in 1947. It appears that private line customers' numbers did not change. Party line customers would have had their last 4 digits changed.

Hollywood Drive
2071 Hollywood Drive, Northwest
In 1922, the office was opened as a manual common battery switchboard. The building was not at the present day address but a few blocks away. The office name was "Belmont".
 
In 1947, a new building was constructed at the present location to house Step-by-Step equipment. On October 12, the customers were switched to the new office.
 
In 1955, during the city-wide conversion to 7-digit dialing, the office was renamed "SYcamore-4". This change was particularly problematic because people did not know how to spell Sycamore and flooded the operators with requests for assistance.
 
In 1960, the name was dropped and the code became 794.
 
The 799 code was added in 1963 and 792 in 1966.
 
In 1973, a No. 1A ESS machine was installed and took over the 792 code.
 
Around 1980, the rest of the step-by-step equipment was retired and customers were transferred to the ESS machine.
 
In May, 2002, the 1A-ESS equipment remains in service.