No, not automatically. Even though Lesotho is entirely surrounded by South Africa, it is a sovereign nation with its own telecommunication networks. Using your South African SIM card here triggers "International Roaming," which can be very expensive. A Cellesim Lesotho eSIM gives you a local data connection at a fraction of the cost, saving you from shock bills when you cross the border.
Planning the trip? See our Lesotho eSIM plans, install in one tap before you fly, and land online. Free VPN included.