Established in 1983, CSL was Hong Kong's first mobile operator, in 2008 we proudly celebrated 25 years of business. We are the leading mobile network operator in Hong Kong, arguably the most competitive telecommunications market in the world.

We are also the first mobile company in Hong Kong to employ a distinctive market segmentation strategy and we use leading-edge technologies to provide customer-focused services.

CSL is committed to retaining its market leading position by delivering innovative and relevant services to our customers. So that we can be sure that our customers know what CSL has to offer we market our services through our segmented brands:1O1O, one2free and New World Mobility.

We operate a world-class GSM / WCDMA network through which we offer comprehensive post and pre-paid mobile services to both local and international customers. CSL is also the leading roaming operator in Hong Kong as we are able to provide unmatched international multi-media connectivity with more than 593^# roaming partners around the world.

CSL is part of HKT Group, Hong Kong's premier telecommunications service provider.

^#As of 1 Nov 2013