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.
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.
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 |