CSL is Hong Kong's first mobile network operator. It is the only mobile company in Hong Kong to operate with a distinctive multi-brand strategy providing customer-centric services through the brands: 1O1O, one2free and New World Mobility and a number of pre-paid service brands.
It operates a world-class GSM / WCDMA /UMTS 900 network in Hong Kong and launched the worldˇ¦s first dual band 4G LTE with DC-HSPA+ network* in November 2010, through which it offers comprehensive mobile and broadband services to both local and international customers. CSL also supports customers across the world, as the leading roaming operator in Hong Kong providing unmatched global multi-media connectivity through over 593# mobile operator partners around the world.
CSL is a subsidiary of Telstra Corporation Limited, Australiaˇ¦s leading telecommunications and information services company.
* It meets the standards of LTE laid down in 3GPP Release 8.
# As at 1 Nov 2013