While rare, we have encountered certain instances where numbers allocated to 3NUM have issues working with specific messaging applications (Signal/Telegram/WhatsApp). In the event that you receive a number that is unable to work with these services, due to a faulty number, the 3NUM team will work with you to get you a number that does meet the minimum criteria. That said, there are certain websites that currently do not work with 3NUMs for 2FA, which is a feature upgrade that is coming soon on the roadmap. Finally, 3NUM cannot control for the fact that some services in some countries do not route to +1 numbers. This is not something 3NUM will be able to solve for in the immediate future, and we appreciate your patience as we build towards a more robust gateway.ing your original number to mint as a 3NUM Shield.