 How to call:
00 - Exit code when making an international call from Guinea
255 - Tanzanian country code for inbound calls
54 - Zanzibar city code
00 + 255 + 54 + Local Number - International dialing code format
 World Times:
The time in Guinea is now 02:29:19 AM (02:29:19 AM)
The time in Zanzibar Tanzania is now 05:29:19 AM (05:29:19 AM)
 Mobile codes:
To call a mobile phone in Tanzania from Guinea use the following dialing code format: 00 + 255 + 74# + The Number
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