1638 IDD - Country Code and Charges

1638 IDD

Country Code and Charges

Enjoy competitive rates to all destinations at all times with our 1638 IDD service. You may use fixed-lines, fax machines or 1638 IDD Service Number to make IDD calls.

Please select a destination to get the country code, area codes and 1638 IDD charges.

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Notice: Starting from 22 September 2025 (HK Time 00:00), 1638 IDD charges of below destinations^# will be adjusted.
For details, please click here.

^#Including Equatorial Guinea, Korea (North), New Caledonia, Ascension Island, Global Networks - Antarctica, Global Networks – OnaAir Aircrafts, Global Networks - SeaNet Maritime, Haiti, Netherlands, Slovenia & St. Helena.

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1638 IDD Service Number

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Destinations	Peak Rate (9:00AM - 8:59PM)	Off Peak Rate (9:00PM - 8:59AM)
Equatorial Guinea	HK$21.50/min	HK$21.50/min
Korea (North)	HK$9.00/min	HK$9.00/min
New Caledonia	HK$17.00/min	HK$17.00/min
Ascension Island	HK$32.67/min	HK$32.67/min
Global Networks - Antarctica	HK$90.00/min	HK$90.00/min
Global Networks – OnaAir Aircrafts	HK$50.00/min	HK$50.00/min
Global Networks - SeaNet Maritime	HK$90.00/min	HK$90.00/min
Haiti	HK$16.00/min	HK$16.00/min
Netherlands	HK$4.60/min	HK$4.60/min
Slovenia	HK$16.00/min	HK$16.00/min
St. Helena.	HK$18.10/min	HK$18.10/min

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