SFR is a French telecommunications company that provides voice, video, data, and Internet telecommunications and professional services to consumers and businesses. SFR is owned by Altice Europe.
As of December 2015, it has 21.9 million customers in Metropolitan France for mobile services, and provides 6.35 million households with high-speed internet access.SFR also offers services in the Overseas Departments of France : in the Caribbean islands of Martinique, Guadeloupe, and in Guyane as well as in the Indian Ocean, in Mayotte and on the Réunion island through SRR although the company is branded as SFR Réunion.
SFR operated in Belgium as a cable operator and MVNO in some communes of Brussels Region and in some areas of Luxembourg. The division was sold to rival Telenet in December 2016.