Infobip helps operators accelerate a new authentication revenue stream while enabling enterprises to deliver more secure, seamless authentication experiences.
Vodnjan, Croatia - August 25, 2026 - Global AI-first cloud communications platform Infobip today launched its SIM-based Number Verification solution, helping telecom operators worldwide accelerate the adoption of SIM-based Number Verification through Network API aggregation and enterprise onboarding. The initiative helps mobile network operators (MNOs) create new authentication revenue opportunities while enabling enterprises to move beyond traditional OTP toward more secure, lower-friction authentication experiences.
As fraud, delivery challenges, cost pressure, and regulatory scrutiny continue reshaping the authentication landscape, operators and enterprises are increasingly looking for stronger authentication alternatives to one-time passwords (OTP). SIM-based Number Verification uses the SIM and mobile network as a trusted identity layer, enabling silent authentication without one-time passwords or manual code entry by proving actual possession of the second authentication factor — the mobile phone number.
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 connects telecom operators with enterprise authentication demand through its Network API aggregation, helping MNOs commercialize SIM-based Number Verification while giving enterprises access to operator-grade authentication through a single integration. 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.
"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.” Matija Ražem, Chief Commercial Telecom Officer at Infobip
"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.” Leonardo Silva, Head of B2B Messaging and Open Gateway at Vivo
Infobip already supports operators globally through messaging monetization, fraud prevention, CPaaS, Network APIs, and enterprise connectivity solutions. To learn more about SIM-based Number Verification and how it is helping operators and enterprises deliver more secure, seamless authentication experiences, read our latest blog here: https://www.infobip.com/blog/entitlement-servers-and-sim-based-number-verification.
About Infobip
Infobip is a global cloud communications platform that enables businesses to build connected experiences across all stages of the customer journey, with AI as the driving force of innovation. Through a single, natively built platform, Infobip delivers omnichannel engagement, identity, user authentication and contact centre solutions that help businesses and partners overcome the complexity of consumer communications while driving growth and increasing customer loyalty. Infobip is focused on enabling and accelerating AI adoption as it continues its transformation into an AI-first company. Infobip’s technology has the capacity to reach over seven billion mobile devices in 6 continents connected to 10k+ connections of which 800+ are direct operator connections. The company was established in 2006 and is led by its co-founders, CEO Silvio Kutić and CTO Izabel Jelenić.