+255-23-(0000000...9999999): Coast, Morogoro, Lindi and Mtwara Read more about +255-23-(0000000...9999999)
+255-26-(0000000...9999999): Dodoma, Iringa, Singida and Tabora Read more about +255-26-(0000000...9999999)
+255-27-(0000000...9999999): Arusha, Kilimanjaro and Tanga Read more about +255-27-(0000000...9999999)
+255-28-(0000000...9999999): Mwanza, Shinyanga, Mara, Kagera and Kigoma Read more about +255-28-(0000000...9999999)