If you could provide private vs. shared numbers (2-3 times, or maybe once across many platforms). that would be pretty awesome.
US numbers are good, but the issue with them is its hard to get physical numbers for a good price, for sites that VoIP doesnt work. Thats why foreign numbers are available much more in quantity.
With a little research done already, I have the knowledge to get the sms verification message into a database. From there it's pretty simple to code a website that could do both,
1. Provide a private mobile number for only 1 persons use
2. Provide a selection of numbers for anyone to use at random, but still only use the number to verify a website 2 times.
I have the idea, I have the ability to code the platform,
The question is "do I do it" and make the investment of around $600