Madagascar has three main mobile operators: Telma, Orange Madagascar, and Airtel Madagascar. HelloRoam eSIM plans connect via partner networks with 4G coverage in urban areas.
Antananarivo (Tana), the capital, has the best coverage on the island with 4G in the city center, Ivato Airport, and main residential areas. Toamasina (Tamatave), the main port city on the east coast, has 4G in the city center. Mahajanga and Toliara (Tulear) have 4G in their town centers.
Most of Madagascar's famous national parks have very limited or no mobile coverage. Isalo National Park in the south, Ranomafana in the east, Andasibe-Mantadia, and the Avenue of the Baobabs area near Morondava all have minimal signal. Nosy Be island in the northwest has 4G in Hell-Ville town and some resort areas. Remote coastal areas, the eastern rainforest corridor, and the spiny desert in the south have no coverage. Download all offline maps and emergency contacts before leaving any covered town for park travel.