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1638 IDD
For Personal Accounts
For Corporate Accounts
  • Please call our Corporate Sales Hotline at 2963 7818 for assistance.
  • SmarTone customers with a specified mobile monthly plan can enjoy 1638 IDD calling from Hong Kong to overseas. If customers have not registered for 1638 IDD, please go to any of our stores for registration to enjoy the service.
  • Subject to relevant terms and conditions. Please click here  for details.