Another cheap international SIM card is TravelSim. Although this provider does not have the lofty reputation of OneSim
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they offer a universal SIM card for a mere $10. It offers coverage for more than one hundred countries and includes unlimited calls. TravelSim also has a pay-as-you-go international SIM card setup and zonal/regional bundles. It is advisable to choose a plan according to your destination and the coverage available in the area.