Looking at B2B IoT services is one way to find prepaid SIM plans that don't require monthly top-ups, but usually you have to buy 5+ SIMs so it doesn't necessari

Looking at B2B IoT services is one way to find prepaid SIM plans that don't require monthly top-ups, but usually you have to buy 5+ SIMs so it doesn't necessarily fit the single-device use-case...