 How to call:
00 - Exit code when making an international call from Guinea-Bissau
255 - Tanzanian country code for inbound calls
68 - Mwanza city code
00 + 255 + 68 + Local Number - International dialing code format
 World Times:
The time in Guinea-Bissau is now 14:55:07 PM (02:55:07 PM)
The time in Mwanza Tanzania is now 17:55:07 PM (05:55:07 PM)
 Mobile codes:
To call a mobile phone in Tanzania from Guinea-Bissau use the following dialing code format: 00 + 255 + 74# + The Number
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