For nearly a decade, the One-Time Password (OTP) via SMS has been the “necessary evil” of the digital world. We have all experienced the friction: waiting for a text that never arrives, switching between apps to copy a six-digit code, and the growing anxiety of SIM-swap fraud. For Communication Service Providers (CSPs), providing this service has felt like a double-edged sword — serving as a critical utility while watching third-party aggregators and OTT players capture the high-value relationship with the end user.
The tide is finally turning. As highlighted in recent industry developments, the shift toward Number Verify (a key component of the GSMA Open Gateway initiative) represents the most significant opportunity for CSPs to move from being pipes to becoming the “identity layer” of the internet.
What is Number Verify?
Number Verify is a network-based authentication API. Unlike SMS OTP, which relies on the delivery of a message that a human must interact with, Number Verify works silently in the background. It checks the device’s MSISDN (mobile number) directly against the real-time information on the CSP’s network. If a user is on a mobile data connection, the authentication happens in milliseconds without a single tap from the user. It is the ultimate frictionless experience.
LotusFlare API Monetization Platform (LFAMP): The Engine of Network Exposure
To monetize this capability, CSPs need more than just a 5G core; they need a sophisticated orchestration and monetization layer. This is where the LotusFlare API Monetization Platform (LFAMP) comes into play.
As a cloud-native API monetization platform, LFAMP acts as the bridge between complex network functions and the global developer ecosystem. By using LFAMP as the core platform, CSPs can expose Number Verify APIs through a standardized, machine-readable interface (aligned with the CAMARA project). LFAMP orchestrates the API calls, ensuring security and processing the micro-billing, so the CSP can focus on scaling the service.
The Strategic Value for CSPs
Why should a CSP prioritize Number Verify over traditional SMS-based authentication? The value proposition spans three critical pillars:
1. Drastic Reduction in Churn and Drop-off
In the digital economy, friction is a billion-dollar problem. Statistics show that a significant percentage of users drop off during the sign-up or login process because of the “OTP tax.” By providing a silent, successful authentication via Number Verify, CSPs help their enterprise clients (banks, e-commerce, and social apps) increase conversion rates. When a CSP makes an enterprise’s app work better, they become an indispensable partner rather than a replaceable utility.
2. Reclaiming Security Leadership
SMS OTP is increasingly vulnerable to social engineering and SIM-swap fraud. Number Verify is inherently more secure because it is tied to the physical SIM and the network session. It cannot be intercepted by a fraudulent web overlay or forwarded to another device. By offering a trusted technology solution, CSPs can charge a premium for security-as-a-service, positioning themselves as the ultimate guardians of digital identity.
3. Moving Up the Value Chain
Traditionally, CSPs earn a fraction of a cent for delivering an SMS. With Number Verify, the CSP is selling a verification event. The market is shifting from volume-based pricing to value-based pricing. Enterprises are willing to pay more for a 100% successful, fraud-proof silent login than they are for a flaky text message. Using LFAMP, CSPs can implement sophisticated pricing models that capture this increased value.
The Opportunity
The growth of 5G Standalone (SA) infrastructure has created the technical capacity, but the business models are still catching up. CSPs that take the intiative — owning the identity layer and exposing it through platforms like LFAMP — will thrive. CSPs that simply deliver traffic for others will continue to see their margins compressed.
Number Verify is not just a technical upgrade; it is a strategic pivot. It allows the CSP to enter the room as a security partner for Fintech, a UX consultant for e-commerce, and a critical infrastructure provider for the entire app economy.
Conclusion
The era of the high-friction OTP SMS is coming to an end. As the industry moves toward standardized network APIs, the CSP has a once-in-a-generation chance to reclaim its place at the center of the digital transaction. By leveraging LFAMP to simplify the exposure and monetization of Number Verify, operators can finally turn the Network-as-a-Service vision into a high-margin reality. But Number Verify is just one example of a much larger question facing CSPs: how do you build the architecture to monetize network APIs at scale, both locally and globally?
To see how TELUS uses a modular stack to fuel its direct-to-developer network API portal while tapping into the massive reach of the Vonage/Ericsson global ecosystem, don’t miss our session at DTW 2026.
Featuring Eric Morhenn (LotusFlare), Ryan Tollofson (TELUS), and James Emerson (Vonage), 'The GTM Architecture for API Success' breaks down the journey from network exposure to full monetization in just 15 minutes. Join us on June 23rd in the Composable IT & Ecosystems track to see the future of API architecture in action.