RealNumber DNO Helps Providers Mitigate Fraud and Support Compliance
Schedule a DemoAs of December 15, 2025, FCC enforcement is in effect. Service providers are now required to use a “reasonable” Do Not Originate (DNO) list to block spoofed, invalid and high-risk numbers before calls or texts are initiated.
RealNumber® DNO is the industry’s most trusted and complete DNO dataset, built to help providers meet regulatory expectations, mitigate fraud and protect their networks.
With its robust Toll-Free and local number dataset of over 6 billion numbers, RealNumber DNO is the industry’s most comprehensive DNO list, helping you to stay ahead of compliance, safeguard your customers and stop fraudulent traffic before it starts.
The most comprehensive set of DNO numbers (and growing!) available to help stop fraudulent traffic in its tracks!
RealNumber DNO is the ONLY DNO list that comes directly from the trusted administrator of the North American Numbering Plan (NANP) and the TFNRegistry™.
Numbers that are automatically entered into the DNO database. The Toll-Free and 10-digit numbers included in this data set are procured directly from three authoritative sources: the TFNRegistry™ and the NANP combined with NPAC.
Toll-Free and local 10-digit numbers that are manually entered by Resp Orgs and Service Provider Identification Number (SPID) owners which should never be used for call or text origination.
Industry Traceback Group (ITG) Number Set that have been thoroughly vetted and identified as numbers spoofed to facilitate illegal, fraudulent, or otherwise malicious traffic.
The only solution in the market that provides visibility into over 6 billion Toll-Free and 10-digit local (and counting!) numbers that have already been identified as DNO for voice.
RealNumber DNO can help to protect against costly fees and fines for non-compliance of recent FCC regulations for both voice and text traffic.
Help harden your Robocall Mitigation Strategy and comply with FCC regulations aimed at safeguarding consumers against the unlawful practice of voice and text spoofing.
Access to over 35 million Toll-Free Numbers identified as DNO for text not only to keep your messaging networks free from unwanted and illegal text messages but ALSO comply with upcoming enforcement of FCC regulations.
Supports Gateway Providers and U.S.-based operators in identifying numbers which should never be used for call origination – making this your one-stop shop compliance solution for recent FCC regulations.
Available via API for simple and efficient implementation to ensure you have the most up-to-date information possible.
Fully customizable subscription! Whether you need to query a single number or 100 million numbers, the RealNumber team is ready to work with you to find a package that fits your needs and helps you stay in compliance!
Connect with our dedicated support team - 24/7 - to answer any of your RealNumber DNO questions.
RealNumber DNO is helping to bring back trust in telephony – one number at a time. And with its robust Toll-Free and 10-digit local number dataset, the solution has shown itself to be a powerful tool in protecting valuable number assets and safeguarding networks.
RealNumber DNO is the key to helping providers comply with the upcoming enforcement of regulations to block calls and texts from numbers that should never originate traffic.
This solution offers a one-stop-shop that is comprehensive, affordable, and user-friendly. See firsthand how RealNumber DNO not only keeps your networks free from unwanted and illegal traffic but also helps you to stay in compliance!
Fraud prevention: It helps telecom providers block traffic from numbers that should never originate calls or texts, protecting end users from scams and spoofing.
Compliance: It can help to protect against costly fees and fines for non-compliance of recent FCC regulations for both voice and text traffic.
Brand protection: By filtering out unwanted calls and texts, it helps maintain the integrity of the business's communication channels, enhancing consumer trust, call authenticity and reputation.
Operational efficiency: By blocking invalid or fraudulent calls, it streamlines operations in environments like contact centers, reducing queue sizes and allowing agents to focus on legitimate customers, while helping protect agents from fraud.
RealNumber DNO is the industry’s most comprehensive DNO dataset. With over 6 billion Toll-Free and 10-digit local (and counting!) numbers that have already been identified as DNO for voice, it’s a one-stop-shop to help stop fraudulent traffic in its tracks!
You also gain access to over 35 million Toll-Free Numbers identified as DNO for text to not only to keep your messaging networks free from unwanted and illegal text messages but also help you comply with recent enforcement of FCC regulations.
RealNumber DNO is the only DNO list that comes direct from the trusted administrator of the North American Numbering Plan (NANP) and the TFNRegistry™. This dataset includes numbers that are invalid, unallocated or inactive and numbers manually entered by Resp Orgs and Service Providers Identification Number (SPID) owners which should never be used for call or text origination; as well as the Industry Traceback Group (ITG) Number set that have been thoroughly vetted and identified as numbers spoofed to facilitate illegal, fraudulent or otherwise malicious traffic.
RealNumber DNO is a fully customizable subscription! Whether you need to query a single number or 100 million numbers, the RealNumber team is ready to work with you to find a package that fits your needs and helps you stay in compliance! Reach out to connect@somos.com and a Somos team member will be in touch.
RealNumber DNO can be accessed by navigating to realnumber.somos.com using a web browser. If you are a Resp Org, You will be able to log in using your TFNRegistry™ credentials to manage DNO on your numbers. SPID holders can reach out for access to manage their local numbers. The RealNumber DNO lists are available in the UI or via an API for simple and efficient implementation to ensure you have the most up-to-date information possible. Access to the DNO Lists requires a subscription.
If you are interested in learning more about how you can use RealNumber DNO to stay ahead of the fraudsters and stop illegal and unwanted voice or text traffic, reach out to connect@somos.com and a Somos team member will be in touch.
Stay ahead of the fraudsters and stop illegal and unwanted voice or text traffic. RealNumber® DNO is the key to helping comply with the upcoming enforcement of FCC regulations to block calls and texts from numbers that do not originate traffic!
