M1 Limited (previously known as MobileOne) is a full-service telecommunications company in Singapore. Launched in April 1997, it was Singapore's second mobile operator after SingTel.As at 2 March 2015, major shareholders include Keppel Telecoms (19.15%), SPH Multimedia (13.32%), and Axiata Investments (28.42%). The remaining shares are owned by institutional and public investors.