AST SpaceMobile Inc. Class A Common Stock. Replay the stock market charts of ASTS day by day, back to 2003. Open long and short positions without spending any money. AST SpaceMobile, Inc. operates space-based cellular broadband network for mobile phones. Its SpaceMobile service provides mobile broadband services for users traveling in and out of areas without terrestrial mobile services on land, at sea, or in flight. The company is headquartered in Midland, Texas.