CSL Mobile Limited

Free 5G sim card

Service Details

Free CSL 5G sim card for 5G applications testing purpose

  • Exclusive for HKSTP companies
  • 50GB data
  • Valid for 30 days from the 1st day after activation


  1. Click ‘Apply Today’ to submit your request
  2. Submit your 1-page 5G testing plan

About CSL Mobile Limited

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.


Disclaimer: Any use of the services offered by any of the third parties listed on this website shall be at your own risk and be subject to the relevant agreement between you and such third party. HKSTP does not provide any guarantee, warranty or representation , whether express or implied, whatsoever regarding such services and has no liability whatsoever towards you arising from or in relation to your use of such services.