American non-VoIP numbers with published prices and a refund button you press yourself, if you are willing to buy on the site's own word alone.

A buyer who wants the widest payment options in the market and cheap single-use codes, and who has read the 2.5 on Trustpilot before topping up.

Cheap one-off codes for Chinese and South-East Asian apps, from a service that is unusually open about how often numbers fail.

Nothing we can recommend today: the numbers stopped receiving messages about six months before we checked.

Reading a throwaway verification code on a small but genuinely live free board, from a service that is open about its own limits.

A throwaway European code on a public board, when the signup in question is one nobody will ever need to recover.

Someone who wants a very wide catalogue with pay-per-code pricing and ordinary card payment, and who treats the 96.54% front-page figure as a claim rather than a measurement.

A free American code from a small shared board that is honest about being public, when nothing about the sign-up needs to be recoverable

Someone who wants a wide country list with pay-per-code pricing and is willing to check the live rate first, and who reads the Trustpilot profile rather than the badge on the site

Someone who needs American non-VoIP numbers and is willing to register before seeing a price, with a free shared board to test the service first