RealNumber®: Your Key to Driving Trust

Equipping Responsible Organizations with the tools needed to provide Enterprise Right-To-Use verification and protecting trusted business numbers from fraudulent calls and illegal spoofing

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Maintain the Integrity of Voice Communications


It’s common knowledge and even data supported: Enterprises who talk directly to customers reap countless benefits over those who cannot or do not. To have these direct conversations, however, customers need to be able to confidently answer calls from enterprises, which means that before anything else, they need to trust the number that is calling them.

Are you looking to help your enterprise customer’s enable A-level Attestation to achieve STIR/SHAKEN compliance or identify numbers as Do Not Originate to help combat fraudulent and spoofed phone calls? is RealNumber® is a powerful solution uniquely positioned to drive increased trust and confidence in phone calls.

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Helping Resp Orgs Enable Enterprises to Achieve A-Level Attestation

At a time when trust is paramount, it’s critical that calls are properly vetted, and caller identification information authenticated. As many enterprises have found while navigating the process, however, achieving full (also known as A-level) attestation is often easier said than done.

Enter RealNumber Right to Use (RTU).

RealNumber RTU is a valuable tool that can be leveraged to provide confirmation of a number’s right to use – an important step in the attestation determination process. This is accomplished by validating the assignment by a Telephone Number Service Provider (TNSP) of a Toll-Free Number. What sets RealNumber RTU apart from the pack however is that it’s the only solution whose baseline for validation comes directly from the Responsible Organization (Resp Org) of Record. Specifically, RealNumber RTU works with the Resp Org to ensure that only the data points relevant to validation are consumed, thus promoting an increased level of trust and confidence. 

Join the Fight Against Telecom Fraud with RealNumber DNO

Help build trust in voice calls using Somos’ RealNumber Do Not Originate (DNO). This feature helps Service Providers not only specify non-originating numbers as DNO, but also helps ensure that calls from these numbers are not passed on to their valuable enterprise customers.

With over 28 million Toll-Free and 4 billion 10-digit local numbers – and counting! – in the RealNumber DNO dataset, now is the perfect time to join your peers in protecting the integrity of voice communications.

The Benefits of RealNumber

Helping to Restore confidence in the PSTN with you in mind!

Resp Orgs

Provide added value and enable Enterprises to achieve A-level attestation.


Increase consumer trust, call completion rates and satisfaction


Answer the phone with confidence knowing who's on the other end.

Gain a Competitive Advantage with Somos

For enterprises looking to achieve A-level attestation – and the Service Providers who support them – Somos has the experience and institutional knowledge needed to foster success. From being the authoritative leader in Toll-Free Number administration to having a deep network of providers – over 350 authoritative TNSPs and Resp Orgs! – Somos is uniquely positioned to deliver the data needed to inform an originating Service Provider of a customer’s right to use a given Toll-Free Number. Simply stated, Somos’ RealNumber RTU provides a win-win case for Service Providers and enterprises alike:

  • The originating Service Provider is empowered with the Toll-Free Number’s associated data on the right to use the Toll-Free Number in a manner that is can be used in the STIR/SHAKEN framework
  • Enterprises are better positioned to successfully achieve A-level attestation

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