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 ▲ |
▲ Free for all customers and roaming charges are waived (only for 1O1O Mobile Number).
Dialing from fixed line
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).