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.


Dialing from mobile:
1O1O Product Hotline: + 852 2988 1010
1O1O Customer Service Hotline: + 852 2888 1010
24-Hour Overseas Emergency Hotline: + 852 3477 4088
Roaming charge waived when a 1O1O mobile number calls any of the hotlines above.

Dialing from fixed line:
Roaming Destinations Dialing Method
Australia [0011] 800 2888 1010
Austria [00] 800 2888 1010
Belgium [00] 800 2888 1010
Brazil [0021] 800 2888 1010
Canada [011] 800 2888 1010
China [00] 400 120 1010
[00] 800 2888 1010
Denmark [00] 800 2888 1010
Finland [990] 800 2888 1010
France [00] 800 2888 1010
Germany [00] 800 2888 1010
Hawaii [011] 800 2888 1010
Ireland [00] 800 2888 1010
Israel [014] 800 2888 1010
Japan [00] 800 2888 1010
Macau [00] 800 2888 1010
Malaysia [00] 800 2888 1010
New Zealand [00] 800 2888 1010
Norway [00] 800 2888 1010
Philippines [00] 800 2888 1010
Portugal [00] 800 2888 1010
South Korea [001] or [002] 800 2888 1010
Singapore [001] 800 2888 1010
Spain [00] 800 2888 1010
Sweden [00] 800 2888 1010
Switzerland [00] 800 2888 1010
Taiwan [00] 800 2888 1010
Thailand [001] 800 2888 1010
UK [00] 800 2888 1010
USA [011] 800 2888 1010
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 2888 1010 for roaming destinations other than the above listed (IDD charges may apply).