SMS2OTP
SMS activation using real physical SIM cards, not virtual nu
Visit Website
February 21, 2026
I built an SMS activation platform using real SIM cards instead of VoIP
I built SMS2OTP, an SMS activation platform using real physical SIM cards instead of virtual or VoIP numbers.
Most existing services rely on virtual numbers, which are increasingly blocked or unreliable for services like Google, WhatsApp, Telegram, and others.
I decided to build my own infrastructure using GSM modems and real carrier SIM cards to improve delivery reliability and have full control over the system.
Currently operating with Mexico carrier SIMs and expanding globally by allowing partners to connect their own GSM modems.
I'm looking for feedback from founders and developers who use SMS verification. What matters most to you in a service like this?
Comment