Calling Overseas - International Roaming

1638 IDD

Country & area code

Country / Region	International call prefix	Area Code	Time Difference
TANZANIA 坦桑尼亞	255	---	-5

IDD tariff (HK$/min)

Country / Region	Peak Rate^* (9:00AM - 8:59PM)	Off Peak Rate^* (9:00PM - 8:59AM)
TANZANIA 坦桑尼亞	11.9	11.9

^* The above charges are applicable for designated customers. If you would like to enquire about the charges for your registered 1638 IDD, please call our hotline at 2880 2688.

Terms and Conditions for this Service

Prices are subject to change without prior notice.
When dialing an overseas number retrieved from the phone’s call history, a standard 001 IDD tariff will be charged.
Calling to Australia: Call to the prefix "61145" & "61147" are charged at HK$34.8/min.
Calling to UK: Calls to the prefix "4455", "4456", "447", "448" & "449" are charged at the rate of calling UK mobile phone numbers.
If duration of a call covers two time zones, calling rate at the time of connection will be applied to the whole call.
Subject to relevant terms and conditions. Please click here for details.

1638 IDD

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