A right-handed batter, Recker is a .185 career hitter in parts of five Major League seasons with the A's, Cubs and Mets.
Recker will join Triple-A Gwinnett. His arrival will not have an immediate effect on Atlanta's catchers A.J. Pierzynski and Tyler Flowers.
Cash Kruth is a reporter for MLB.com. Follow him on Twitter at @cashkruth. This story was not subject to the approval of Major League Baseball or its clubs.