Meta
Meta has published a white paper outlining their evaluation of silent authentication APIs as a replacement for SMS OTP across their platforms, citing fraud immunity, conversion gains, and stronger telco-enterprise partnerships as key drivers.
SOLUTIONS
No codes.
No friction.
IDT global’s Phone Number Authentication delivers silent, carrier-grade user verification in real time, no SMS codes, no user input, no interception risk.
Contact our team
<1s
Authentication time
30%
Higher conversion
72
MNOs on Open Gateway
1,055%
SIM swap fraud rise
Silent Carrier Authentication
Verifies identity directly at the SIM level. No message sent, no user interaction required.
Verification in Seconds
Authentication happens in the background the moment a user opens your app.
The End of OTP Fraud
Network-level verification means nothing to intercept, nothing to spoof, nothing to steal.
The risk of SMS fraud is no longer a future threat, it’s a daily cost. We give you a smarter route to verification, built on carrier relationships that took decades to build.
Direct relationships with mobile network operators across the globe, giving you carrier-level reach from day one.
Verification happens in the background. No code sent. No user action required. Authentication in seconds.
No SMS means no interception, no SIM-swap vulnerability, and no fake code attempts hitting your platform.
Connect via a single API. Our gateway handles all carrier complexity so your team doesn’t have to.
Remove friction from your onboarding and login flows. Fewer abandoned verifications means more active users.
Built to the GSMA TS.43 standard, ensuring interoperability across carriers and compliance with industry protocols.
With IDT global’s PNA, enterprises get carrier-grade verification across hundreds of MNOs worldwide, without building a single operator relationship themselves.
GDPR compliant, enterprise-grade security
No codes, no user input, no drop-off
Carrier-grade fraud protection built in
One API, hundreds of MNOs worldwide

Technology Platforms
Large-scale tech companies and platforms running verification at high volume, reduce cost and strengthen authentication in one move.
App Developers
Any application using OTP or 2FA for login or onboarding. Add carrier-verified, frictionless authentication without rebuilding your stack.
Communications & CPaaS Platforms
Platforms handling verification flows at scale. Add carrier authentication as an additional layer without disrupting your existing setup.
E-Commerce & Retail
Secure account logins and checkout authentication without adding friction that impacts conversion.
Financial Services & Fintech
Banks, lenders, and fintech platforms handling sensitive transactions. Carrier-level authentication adds a powerful layer of security where it matters most.
Messaging Service Providers
Businesses managing A2P verification at scale who want a more robust, cost-effective authentication layer.
Industry Adoption
Silent network authentication is no longer an emerging concept, it’s being actively evaluated and deployed by enterprises and platforms at global scale, as a direct replacement for SMS OTP.
Meta has published a white paper outlining their evaluation of silent authentication APIs as a replacement for SMS OTP across their platforms, citing fraud immunity, conversion gains, and stronger telco-enterprise partnerships as key drivers.
At MWC 2025, Telefónica demonstrated SIM-based authentication via secure tokens using TS.43 and GSMA Open Gateway Number Verification, integrated directly into Google's Firebase phone verification service.
The UAE Central Bank, Reserve Bank of India, and multiple APAC regulators have issued guidance directing financial institutions to move beyond SMS OTP, citing SIM swap exposure and SS7 vulnerabilities as the primary drivers.
NIST SP 800-63B Rev 4 (2025) formally classifies SMS OTP as a "restricted authenticator." CISA and the FBI issued a joint advisory explicitly recommending organisations stop relying on SMS authentication.
As of early 2025, 72 mobile operators had committed to GSMA Open Gateway APIs, representing approximately 80% of global mobile connections, building the commercial infrastructure for carrier-grade silent authentication at scale.
The banking, financial services, and insurance sector is the fastest-growing adopter of network-level authentication, driven by compliance pressure, fraud costs, and digital-first customer experience mandates.
For Mobile Network Operators
PNA creates a new API revenue stream from the identity layer you already own. IDT global brings the enterprise relationships, you bring the network.
Why now for mnos
2,000+ enterprises ready to authenticate over your network today.
Monetise the identity layer you already own, at scale.
Commercial relationships, aggregation, and technical integration.
IDT global’s PNA is a TS.43 carrier authentication gateway. It enables enterprises to silently verify and authenticate users via the mobile carrier network, with no SMS code sent and no action required from the end user, delivering real-time authentication in the background.
PNA verifies users directly at the carrier network level, removing the vulnerabilities that come with code-based verification methods. Because no message is sent and no user input is required, there is nothing to intercept, phish, or manipulate.
IDT global has direct relationships with mobile network operators across key global markets. Contact our team for current coverage details relevant to your target markets.
Integration is designed to be fast. Most enterprise implementations are completed within a few days, with full technical support from our team throughout the process.