
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 ▲ |
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Free for all customers and roaming charges are waived (only for 1O1O Mobile Number). |
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] 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.
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