v3.26.1
Cover - shares
 3 Months Ended
Mar. 31, 2026
May 07, 2026
Entity Addresses [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Mar. 31, 2026  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2026  
Current Fiscal Year End Date --12-31  
Entity File Number 001-39040  
Entity Registrant Name AST SPACEMOBILE, INC.  
Entity Central Index Key 0001780312  
Entity Tax Identification Number 84-2027232  
Entity Incorporation, State or Country Code DE  
Entity Address, Address Line One Midland Intl. Air & Space Port  
Entity Address, Address Line Two 2901 Enterprise Lane  
Entity Address, City or Town Midland  
Entity Address, State or Province TX  
Entity Address, Postal Zip Code 79706  
City Area Code 432  
Local Phone Number 276-3966  
Title of 12(b) Security Class A common stock, par value $0.0001 per share  
Trading Symbol ASTS  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Common Class A [Member]    
Entity Addresses [Line Items]    
Entity Common Stock, Shares Outstanding   298,746,383
Common Class B [Member]    
Entity Addresses [Line Items]    
Entity Common Stock, Shares Outstanding   11,215,111
Common Class C [Member]    
Entity Addresses [Line Items]    
Entity Common Stock, Shares Outstanding   78,163,078