OneSimCard

OneSimCard has been in the international SIM business since 2006, long enough to have outlasted plenty of competitors that launched and folded in the years since, and it still offers both eSIM and traditional physical SIM options for travelers who want a fallback if their phone's eSIM support turns out to be unreliable. That combination appeals particularly to a nomad who might switch devices mid-trip or wants a backup that doesn't depend on eSIM compatibility at all.

Its local number options across multiple countries let a longer-stay traveler pick up something closer to a resident's phone number rather than relying purely on data, useful for anyone dealing with local banks, landlords, or services that expect a local contact number. Pricing and specific country coverage are worth checking directly before buying, since a company operating this long has accumulated a wide, uneven mix of plans over the years rather than a single clean, current lineup. It suits nomads who value a long operating history and the option of a physical SIM backup over the cleanest possible app experience.