csl 是香港領先的流動通訊服務營運商，亦是香港取得最多頻譜數量的流動通訊服務營運商，提供真正5G服務，並同時帶來一系列嶄新的5G視聽娛樂服務，致力讓客戶盡享超高速及低延遲的5G流動網絡服務，及多連接眾多裝置的特性。csl 以 5G 覆蓋凝聚世界，創新境界。5G眼界，更見遠大。

香港移動通訊有限公司為香港電訊附屬公司。

csl is a mobile service brand of CSL Mobile Limited. csl is the leading provider of mobile communications and holds the widest range of radio spectrum of any mobile network operator in Hong Kong. Our new 5G service comes complete with a spectacular breed of audio-visual entertainment, riding on 5G hallmarks of ultra-high speed, massive connectivity and ultra-low latency. csl’s differentiation from competitors is served by a richness of expertise, diverse partner relationships and an approach that enables customers to see the world differently.

CSL Mobile Limited is a subsidiary of HKT.