Insights

Compliance Meets Clarity: The Power of RealNumber® DNO

Jul 23, 2025

Call blocking is under regulatory attention – and for good reason. As regulations evolve and enforcement tightens, the spotlight is on how well providers can distinguish between fraudulent and legitimate calls. When done right, it protects businesses and consumers. When done poorly, it can inadvertently block legitimate calls, frustrate customers and expose your business to compliance risk.

The industry is moving toward stricter enforcement and tighter coordination between carriers, messaging providers and enforcement agencies. That’s where RealNumber® Do Not Originate (DNO) comes in – a solution to support real-time, data-driven call blocking aligned with industry best practices and regulatory compliance. The strength of RealNumber DNO lies in the integrity of its data – with over 6 Billion Toll-Free and local numbers, it’s an authoritative source for all unassigned, unallocated and business opt-in phone numbers – including the Industry Traceback Group’s (ITG’s) list of numbers–  making it more than reasonable under the FCC’s call blocking guidelines (FCC-19-51A1) to support compliance with current mandates..

RealNumber DNO enables providers to block with precision by giving them a continuously updated, authoritative DNO list, eliminating ambiguity around what traffic should and shouldn't be allowed through.

Effective blocking requires more than effort — it requires evidence. RealNumber DNO helps to ensure you're relying on trusted data that stands up to regulatory review by providing the clarity, accuracy and reliability you need to block calls with confidence.

Interested in learning more about how RealNumber DNO can help support your fraud and compliancy efforts? Reach out to connect@somos.com today!