Hours Of Operations Comcast Service Center Florida Marianna Comcast Service Center Hours of Operation and Locations in Marianna, FL 4.5 - 19 votes 1 Locations in Marianna www.customer.xfinity.com Comcast Service Center Hours Category: Electronics Comcast Service Center - Marianna, FL 32448 2918 Penn Ave, Ste D(800) 266-2278 View Store Details Explore MariannaView More Apparel Big LotsGoody'sCatoCarharttCarter's Sports VansAll Star Sporting GoodsAll Sports Jewelry CatoOccasions Recommend For You Xfinity Store R & R Solutions Studio Xfinity Dm Computers Clear Internet Harmony Computer Solutions Ribbons Express Incorporated Fdm Group Incorporated Ventures Unlimited Incorporated Concerto Networks