Does CoreESIM function for diving excursions in Mafia Island or Pemba, Tanzania?

CoreESIM generally provides serviceable connectivity at the primary lodges and dive centers on Mafia Island and Pemba Island, Tanzania. While coverage exists, it is typically less robust and consistent compared to the main island of Unguja (Zanzibar). Expect 4G LTE in central areas, potentially dropping to 3G or E (EDGE) in more remote coastal sections or during offshore excursions. Plan for occasional signal fluctuations, but basic communication and data access should be achievable from settled areas.