EXHIBIT 11

            AMERICAN TELESOURCE INTERNATIONAL INC. AND SUBSIDIARIES
                       COMPUTATION OF EARNINGS PER SHARE

 
 
                                                 For the period from
                                              December 17, 1993 (Inception) For the year ended    For the six month periods ended
                                               through July 31, 1994           July 31, 1995     January 31, 1995  January 31, 1996
                                              -------------------------  --------------------  ------------------  -----------------
                                                                                                             (unaudited)  
                                                                                                                    
Primary                                                                                                                            
   Earnings:                                                                                                                       
     Net loss                                                ($343,528)        ($2,004,167)         ($907,405)      ($1,420,699)    
                                              =========================  ==================  =================  ================    
                                                                                                                                    
   Shares:                                                                                                                          
     Weighted average number of common shares                                                                                       
      outstanding                                            9,146,091         13,922,018          12,546,257        19,094,398     
     Incremental shares assuming conversion of                                                                                      
      warrants                                                       0            162,360             225,552           137,830     
                                              -------------------------  -----------------   -----------------  ----------------    
                                                                                                                                   
     Weighted average number of common shares                                                                                       
      outstanding as adjusted                                9,146,091         14,084,378          12,771,809        19,232,228     
                                              =========================  =================   =================   ===============    
                                                                                                                                    
     Primary earnings per common share                                                                                              
      Net loss                                                  ($0.04)            ($0.14)             ($0.07)           ($0.07)    
                                              =========================  =================   =================   ===============   
                                                                                                                                    
Fully Diluted                                                                                                                       
   Earnings:                                                                                                                        
     Net loss                                                ($343,528)       ($2,004,167)          ($907,405)      ($1,420,699)    
     Add: Interest expense applicable to convertible                                                                                
      debt                                                           0              6,000                   0             6,000     
                                                 ----------------------  -----------------   -----------------   ---------------    
     Net loss - as adjusted                                  ($343,528)       ($1,998,167)          ($907,405)      ($1,414,699)    
                                                 ======================  =================   =================   ===============   
                                                                                                                                   
   Shares:                                                                                                                          
     Weighted average number of common shares                                                                                       
      outstanding                                            9,146,091         13,922,018          12,546,257        19,094,398     
     Incremental shares assuming conversion of                                                                                      
      convertible debt                                               0            100,000                   0           200,000     
     Incremental shares assuming conversion of                                                                                      
      warrants                                                  39,835            202,229             226,552           200,018     
                                                 ----------------------  -----------------   -----------------   ---------------    
     Weighted average number of common shares                                                                                       
      outstanding as adjusted                                9,185,926         14,224,247          12,771,809        19,494,416     
                                                 ======================  =================   =================   ===============    
     Fully diluted earnings per common share                                                                                        
      Net loss, as adjusted                                     ($0.04)            ($0.14)(a)          ($0.07)           ($0.07)(a)
                                                 ======================  =================   =================   ===============    
 

(a) This calculation is submitted in accordance with paragraph 601 (b) (11) of
Regulation S-K although it is contrary to APB Opinion No. 15 because it produces
an antidilutive result.