Infobip, a global cloud communications platform, has launched a new SIM-based Number Verification solution designed to help telecom operators worldwide accelerate adoption of this authentication method through Network API aggregation and enterprise onboarding.
This initiative gives mobile network operators (MNOs) a new way to unlock authentication revenue, while enabling enterprises to move beyond traditional one-time passwords (OTP) toward authentication experiences that are more secure and lower-friction.
Rising fraud, delivery challenges, cost pressures, and tightening regulatory scrutiny are reshaping the authentication landscape. As a result, both operators and enterprises are increasingly seeking stronger alternatives to OTP-based verification.
SIM-based Number Verification addresses this shift by using the SIM card and mobile network as a trusted identity layer. Rather than relying on a one-time password or manual code entry, the solution enables silent authentication by directly proving possession of the second authentication factor — the mobile phone number itself.
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Chief Commercial Telecom Officer at Infobip Matija Ražem Said, “Operators already own one of the most trusted assets in digital identity — the SIM and the network authentication process. Our role is to help operators commercialize that capability faster while giving enterprises a scalable path toward more secure and seamless authentication.”
“Authentication is becoming a much bigger part of the overall customer experience, not just a security checkpoint. SIM-based Number Verification creates an opportunity to reduce friction for users while strengthening trust in mobile authentication. By removing the need for one-time passwords and leveraging the trust already built into the SIM and mobile network, enterprises can deliver more seamless and secure digital experiences at scale.” Head of B2B Messaging and Open Gateway at Vivo, Leonardo Silva stated.
By using the SIM as the trust anchor and cryptographically verified through the mobile network that the number belongs to the SIM in the device, the approach reduces fraud risk, improves user experience, and enables faster, more seamless authentication across both cellular and Wi-Fi environments. Unlike earlier network-based verification methods, it also supports more modern consent- and token-based flows while reducing dependence on mobile-data-only verification.
Infobip’s Network API aggregation connects telecom operators directly to enterprise authentication demand. For MNOs, this creates a clear path to commercialize SIM-based Number Verification as a new revenue stream. For enterprises, it means access to operator-grade authentication through a single integration — rather than negotiating separately with multiple operators. This enables operators to monetize authentication capabilities while helping enterprises adopt a more secure authentication method that offers a better customer experience than traditional one-time passwords.
