International Dialing Zanzibar
This is the international dialing code used when dialing from Zanzibar. International Dialing Zanzibar Code is also known as Zanzibar International Direct Dialing prefix (or IDD) is used when dialing from the Zanzibar to outside Zanzibar (sometimes also refers to as Zanzibar international access code). Do not use Zanzibar IDD code when dialing within Zanzibar. By simply using the Zanzibar Dialing Code before the number, it unables you to place a call to outside Zanzibar from within Zanzibar. Without this international dialing Zanzibar Code, you will not able to place a call outside the Zanzibar because the telephone exachange will not reconginize it as a valid international call.
To dial a international number outside Zanzibar from within Zanzibar, you have to dial International Dialing Zanzibar Code or Zanzibar International Direct Dialing prefix (IDD), Zanzibar Country Code, City/ Area Code, and then the subscriber telephone number respectively as:
+255 (International Dialing Zanzibar Code) + (Country Code) + City Area Code + Number you wish to call.
When dialing from a mobile phone outside Zanzibar from Zanzibar, only Dial '+' + (Country Code) + City Area Code + Number you wish to call. (The "+" is universal mobile international direct dialing prefix also includes Zanzibar)
On the other hand, when dialing to Zanzibar from outside Zanzibar, a Zanzibar Country Code is used. Zanzibar Country Code however is not used when dialing within Zanzibar.
The other type of code is Zanzibar National Direct Dialing prefix (or NDD). It is used only when dialing to a destination within the Zanzibar (Refer to dialing Zanzibar code). Zanzibar NDD code is only used as long distance dialing within the Zanzibar. Do not use Zanzibar National Direct Dialing prefix when dialing from outside Zanzibar into Zanzibar.
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