USA Phone Number Verification app is an app that allows you to free international SMS, OTP, PIN . You can then use this number. USA phone number app is for people who want to someone in the US and have a USA phone number. It will give you a US phone number. People who are living outside of the USA and want to someone in the US, but don't want to pay high rates on internationals, can use this app. It will give them a US phone number. The USA phone number is a very common phenomenon in the Un