Our truly genuine 5G network now achieve to 99%^ in Hong Kong, 99.9%# of the Golden Bowl and main business district
Our truly genuine 5G network now achieve to 99%^ in Hong Kong, 99.9%# of the Golden Bowl and main business district
csl’s 5G network ranked in the top-10 globally

International network authorities* have ranked csl’s 5G network coverage among the world’s top-10. High ratings were recorded in terms of gaming experience, speed and low latency – all of which serve to deliver a totally smooth user experience. As an example, average 5G upload speed achieved by csl has rocketed 49.9% since last year, which was assessed as the best such performance on a global scale. What’s more, csl has been named “most desirable mobile service provider^” by a local magazine.

*As reported by the Hong Kong Economic Journal on 22 September 2022. Details: https://lnkd.in/gyxQKfSR.
^As reported by PC Market on 15 September 2022. Details: https://www.pcmarket.com.hk/annual-5g-speed-test-2022/.

Passengers are enjoying far-reaching 5G service coverage, by virtue of MTR-dedicated spectrum
Passengers are enjoying far-reaching 5G service coverage, by virtue of MTR-dedicated spectrum

We are the first mobile operator to provide seamless 5G coverage along all MTR lines*, so passengers can enjoy our truly genuine 5G service on concourses and platforms at all stations, as well as through tunnels and onboard trains, which includes the Tuen Ma line and the new East Rail Line Cross-Harbour Extension@ (from Hung Hom Station to Admiralty Station via the new Exhibition Centre Station). In addition, we are the first mobile operator to provide 5G coverage along all MTR lines with dedicated 5G spectrum deployed to cover the East Rail Line Cross-Harbour Extension. Our non-DSS (dynamic spectrum sharing) technology approach means we can avoid using the existing 4G band to provide 5G service. The upshot is 5G users can enjoy ultra-fast speed, while having no negative impact on the 4G user experience.

csl’s truly genuine 5G network serves you while enjoying the great outdoors
csl’s truly genuine 5G network serves you while enjoying the great outdoors

Whether hiking, camping or cycling, we all seem to be spending more time enjoying the great outdoors these days. This often requires us to consult a map, and we love to share our magic moments while out and about by uploading photos to our various social platforms. Thank heavens csl’s truly genuine 5G network is there for us, virtually every step of the way. Our network already covers country parks, hiking trails and camping sites throughout picturesque locations such as Dragon's Back, Tung Lung Chau, Shek Uk Shan, Robin's Nest, the MacLehose Trail, Cheung Sheung, Tai Tan, Pak Lap and Grass Island. csl’s 5G service has also been extended to major cycle tracks in Hong Kong including the 60-kilometre New Territories Cycling Track Network, Tseung Kwan O South Waterfront Promenade Cycling Track, West Kowloon Waterfront Promenade Cycling Track, Shing Mun River Track and the route from Yuen Long to Nam Sang Wai. Whatever you may be doing in Hong Kong, csl’s extraordinary 5G capability is always at your service. Remarks: Mobile network coverage and actual customers internet experience within the country parks / countryside will be affected by the special landforms (e.g. valleys, forest, etc.), network conditions and other extraneous factors.

csl. 5G activated its 5G service in the 700MHz band.

The 700MHz low band is unique in that its high penetration enhances indoor reception, particularly in urban areas with densely packed high-rise buildings. Its wide area coverage, on the other hand, helps extend service to the New Territories and remote areas for users such as residents of village houses, hikers and watersports participants to enjoy superb 5G service. With a substantial holding of mobile radio spectrum in high, mid, low frequency and a robust, extensive fibre-backed network infrastructure, we are able to fully leverage its mobile network to consistently provide top-notch mobile communication service for its customers. Having successfully bid for 20MHz of 5G spectrum in the 700MHz band, HKT is able to not only increase network coverage, but also combine the 700MHz 4x4MIMO with its 5G network Massive-MIMO technology to enable a seamless high-speed 5G mobile communication experience.

csl singled out as Hong Kong's top 5G choice
csl singled out as Hong Kong's top 5G choice

csl’s industry-acclaimed 5G service has won a succession of awards by an overwhelming margin Δ.
Accolades have been awarded to csl according to a public polling system,
as well as endorsement from major media titles and industry entities.

5G network coverage

The 5G network coverage map is for illustration purpose, some locations may not be covered.

Insist on a truly genuine 5G network
Insist on a truly genuine 5G network

The benefits of our dedicated 5G golden spectrums in the 3.3G Hz, 3.5GHz and 4.9GHz frequency bands rule out any need for dynamic sharing of spectrum (DSS) between 4G and 5G networks. This means csl customers can reap all the extraordinary benefits of our truly genuine 5G network without compromising performance for 4G users.

Customers simply need to use a 5G mobile device compatible with 4.9GHz to reap the superfast speed and other advantages of csl’s 5G network at locations such as the Hong Kong Science Park and certain areas of Tai Po and Ma On Shan.

We will continue extending 5G coverage throughout Hong Kong, while making the many wonders of this amazing new mobile broadband technology readily available to our customers at every opportunity.

Date of acquisition
in 2019
Band Frequency acquired
March 27
High-band spectrum 26/28GHz
October 14
October 23
Mid-band spectrum
(golden band spectrum)
November 6
5G characteristics
5G characteristics

Ultra high speed

20 times faster than maximum 4G download speeds.

Massive connectivity

The number of smart devices that can be connected simultaneously is more than 100 times greater than 4G can achieve.

Ultra-low latency

Latency of less than one-thousandth of a second.

Three major 5G frequency bands
Three major 5G frequency bands

Global and Hong Kong 5G spectrums are broadly divided into three different frequency bands – high, medium and low. Each range comes with completely different characteristics and advantages.

High-band spectrum


UHF broadband for ultra-high transmission speed.

Deployment in the environment

This is suitable for indoor and high-density environments, and provides ultra high-speed connectivity for multiple users simultaneously.

Mid-band spectrum
3.3GHz, 3.5GHz
and 4.9GHz


Considered 5G’s “golden band spectrum”, mid-band provides high speeds and wide coverage.

Deployment in the environment

5G service will be rolled out to many Hong Kong districts.

Low-band spectrum
2GHz and below


Very high penetrating signal power to suit Hong Kong’s proliferation of high-rise buildings.

Deployment in the environment

Use high and medium frequencies to maximize 5G coverage.

Source: Information and figures on 5G are referenced from the documents listed by GSM Association. More details can be found in https://www.gsma.com

Some figures quoted are theoretical value, actual performance may vary due to location, spectrum allocated, network resource availability and the compatible handset’s capability, etc.

^Network coverage based on our test results on major roads, as of January 13, 2022.
#With regard to our test results as of August 1-31, 2021, Golden Bowl and main business district refer to outdoor areas in Kowloon (south of Lung Cheung Road to Tsim Sha Tsui) and the northern part of Hong Kong Island (Sheung Wan to Tai Koo).
@ According to test results by Jan 2022
Δ Awards include: iMoney Brand Awards 2020, PC3 Platinum Brand 2020, HK discuss iChoice, MTR broadcast & CHKCI – Hong Kong Digital Brand Awards 2020, SingTao Service Awards, PCM – Best of IT Award, Eastweek – Hong Kong Service Awards 2020, Price.com.hk – Price Consumer Choice Award 2020, Headline No.1 Award 2020, NEXT Magazine – Top Service Award and Capital Weekly – Service Awards 2020.