Although only three providers dominate the satellite phone market in 2023, it’s difficult to know which satellite phone plans to choose. Iridium, Globalstar, and Inmarsat all make great sat phone backed by billion-dollar satellite networks. The best option for you hinges on one variable: where you plan to put it to use. The first step in selecting a provider is comparing coverage maps. Iridium’s 66 low Earth orbit (LEO) satellites offer connectivity to 100% of the globe.Inmarsat’s four satellites rotate in geosynchronous orbit over the equator at a staggering height of 32,000 miles. At such a lofty position, they cover 90% of the planet only missing sight of the poles.Globalstar’s constellation of 48 LEO satellites, once chided for spotty coverage, continues to improve and keep satellite phone cost down. Nonetheless, vast chunks of the world remain outside Globalstar’s reach, making it a no go for those interested in satellite phones in 2023.