United States securities and exchange commission logo May 10, 2021 Abel Avellan Chief Executive Officer AST SpaceMobile, Inc. Midland International Air & Space Port 2901 Enterprise Lane Midland, TX 79706 Re: AST SpaceMobile, Inc. Registration Statement on Form S-1 Filed May 6, 2021 File No. 333-255842 Dear Mr. Avellan: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rule 461 regarding requests for acceleration. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Please contact Jeff Kauten, Staff Attorney, at (202) 551-3447, or in his absence, Jan Woo, Legal Branch Chief, at (202) 551-3453, with any questions. If you require further assistance, please contact Larry Spirgel, Office Chief, at (202) 551-3815. Sincerely, Division of Corporation Finance Office of Technology cc: Brent T. Epstein, Esq.