Claro, Altice and Viva cover cities and resort strips on 4G; mountain coffee towns and remote Samaná peninsula roads can thin out. Hurricane season occasionally damages towers on the coast. Check the network list above for Dominican Republic before you fly; it shows what is available right now, including options such as Claro, Orange Dominicana S A.
Prepaid SIMs are sold at airports, resort kiosks and operator stores with passport ID. Tourist plans often include a local number for ride and tour operators. That still makes sense if you will live in Santo Domingo for months and need local calls. For a holiday or short work trip, most people only need data — and NXTL gives you that without the desk stop: install at home, keep your usual number for calls and bank texts, pay only for the gigabytes you use.
There is no complicated Dominican Republic-only product to learn. NXTL is one global eSIM: the same profile you might use elsewhere works here on Claro, Orange Dominicana S A when listed. Land, turn data on, and go — rates for Dominican Republic are shown live on this page because they can change.
If Dominican Republic is one stop on a longer route, NXTL is built for that. Use data around Santo Domingo and Punta Cana, then keep the same balance wherever NXTL has coverage next. You are not locked into a single-country tourist pack.
Expreso buses between Santo Domingo and Santiago use phone-confirmed stops that are easier with mobile data than airport Wi-Fi alone. NXTL is built for that kind of Dominican Republic trip: data when you need it, without buying a new pack for every change of plan.