Exhibit 99.1
 
JOINT FILING AGREEMENT
 
In accordance with Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, each of the undersigned hereby agrees to the joint filing with each other on behalf of each of them of such a statement on Schedule 13G, and any amendments thereto, with respect to the common stock beneficially owned by each of them of Altice USA, Inc. This Joint Filing Agreement shall be included as an Exhibit to such Schedule 13G.
 
Dated: February 14, 2018
 
 
Next Alt S.à. r.l.
  
 
 
    
       
 
By:
/s/ David Connolly
  
 
 
Name:
David Connolly
  
 
 
Title:
Authorized Signatory
  
 
 
 
 
  
         
 
Altice N.V.
  
 
 
    
       
 
By:
/s/ David Connolly
  
 
 
Name:
David Connolly
  
 
 
Title:
Authorized Signatory
  
         
         
 
CVC 3 B.V.
  
 
      
       
 
By:
/s/ David Connolly
  
 
 
Name:
David Connolly
  
   
Title:
Authorized Signatory
  
         
         
 
Patrick Drahi
  
     
 
 
 
  
 
By:
/s/ David Connolly
  
 
 
Name:
David Connolly
  
 
 
Title:
Authorized Signatory
  
         
         
 
Neptune Holding US GP LLC
  
 
 
    
       
 
By:
/s/ David Connolly
  
 
 
Name:
David Connolly
  
 
 
Title:
Authorized Signatory
  
         
         
 
Neptune Holding US Limited Partnership
  
 
 
    
       
 
By:
/s/ David Connolly
  
 
 
Name:
David Connolly
  
 
 
Title:
Authorized Signatory