A Manhattan con man stole hundreds of FedEx account numbers that resulted in millions of dollars of losses for the global shipping company in what police sources are calling an inside job, The Post has learned.

Anta Fall, 45, who owned a Midtown shipping company, was working with an unidentified accomplice, who was feeding him the FedEx corporate account numbers, which he would then use to send packages to West Africa for his customers after they paid him a fee, sources said.