Mobile phone number:
We run the biggest dedicated customer service fleet in Hong Kong, providing world-class and round-the-clock support, locally and internationally. Just call our hotline whenever you experience problems using your mobile phone overseas.
▲ Free for all customers and roaming charges are waived (only for csl mobile number call Customer Service Hotline and Overseas Emergency Hotline).
| Roaming Destinations | Dialing Method |
|---|---|
| Australia | [0011] 800 25 123 123 |
| Austria | [00] 800 25 123 123 |
| Belgium | [00] 800 25 123 123 |
| Brazil | [0021] 800 25 123 123 |
| Canada | [011] 800 25 123 123 |
| China |
[00] 400 120 1123 [00] 800 25 123 123 |
| Denmark | [00] 800 25 123 123 |
| Finland | [990] 800 25 123 123 |
| France | [00] 800 25 123 123 |
| Germany | [00] 800 25 123 123 |
| Hawaii | [011] 800 25 123 123 |
| Ireland | [00] 800 25 123 123 |
| Israel | [014] 800 25 123 123 |
| Japan | [00] 800 25 123 123 |
| Macau | [00] 800 25 123 123 |
| Malaysia | [00] 800 25 123 123 |
| New Zealand | [00] 800 25 123 123 |
| Norway | [00] 800 25 123 123 |
| Philippines | [00] 800 25 123 123 |
| Portugal | [00] 800 25 123 123 |
| South Korea | [001] or [002] 800 25 123 123 |
| Singapore | [001] 800 25 123 123 |
| Spain | [00] 800 25 123 123 |
| Sweden | [00] 800 25 123 123 |
| Switzerland | [00] 800 25 123 123 |
| Taiwan | [00] 800 25 123 123 |
| Thailand | [001] 800 25 123 123 |
| UK | [00] 800 25 123 123 |
| USA | [011] 800 25 123 123 |
The above international IDD prefixes are required if dialing from a land line.
Notes:
1. Please use landline phone to access the international toll-free number
2. Customers can call +852 25 123 123 for roaming destinations other than the above listed(IDD charges may apply).
