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Tammy Johnson is a seasoned professional in account management and sales, currently serving as a National Account Manager at Cogent Communications. Johnson's career includes significant roles such as Senior Business Account Executive at Comcast Business and Client Solutions Executive at AT&T, along with experience as a Retail Sales Consultant and a Customer Service Representative. Johnson's early career features a position as a Retail Sales Representative at U.S. Cellular. Academic credentials include a Bachelor's Degree in Business Administration and Management from Brown University, awarded in 2012.