OTP Verification Service Built on Real Carrier Numbers
An OTP verification service is only as good as its number inventory. VoIP-heavy providers deliver cheap per-OTP prices but fail operationally when WhatsApp, Google, or fintech apps block their ranges.
NonVoip Service combines OTP verification service infrastructure with genuine carrier non-VoIP numbers across 2,200+ apps and 200+ countries — plus a developer API for production automation.
Supported apps
Get a temp number USA that works on the platforms you use every day — all with real non-VoIP carrier routes.
Frequently asked questions
What is an OTP verification service?
A platform that provides phone numbers and delivers one-time SMS codes for app signups.
How is NonVoip different from generic OTP APIs?
We use real non-VoIP carrier inventory, not VoIP virtual lines.
What is the delivery success rate?
99.2% historical success on recommended routes.
Is there an API?
Yes — REST JSON endpoints with 60 req/s rate limits.
Do failed OTPs cost money?
No — automatic wallet refunds when SMS never arrives.