Your One-Stop-Shop to Ensure FCC Compliance for Do Not Originate Regulations

RealNumber® DNO: The Industry's Most Comprehensive Database to Help Mitigate Fraud!


RealNumber DNO, DNO, Do Not Originate, Robocalling, FCC Robocall Mitigation

The Federal Communications Commission (FCC) is now cracking down on fraudsters leveraging voice channels for their nefarious activities as well as protecting messaging channels from fraud. With the recent Report & Orders, new regulations were put into place to support these efforts by requiring explicit effort and participation from both voice AND mobile service providers. Not only will service providers need to continue to prove that solutions have been put in place to stop illegal robocalls, but mobile providers must also implement solutions to stop illegal and unwanted texts. 

Ensure FCC compliance with Do Not Originate (DNO) mandates for voice and text with RealNumber® DNO.

RealNumber DNO for voice and text is the key to helping Service Providers comply with regulatory mandates aimed at eliminating unlawful robocalls and robotexts. With its robust Toll-Free and local number dataset of over 6 billion numbers, RealNumber DNO offers a one-stop solution that is comprehensive, affordable and user-friendly but, more importantly, helps you stay in compliance!

DNO By The Numbers

The most comprehensive set of DNO numbers (and growing!) available to help stop fraudulent traffic in its tracks!

28M Toll-Free DNO Numbers
6B Local DNO Numbers
3M Subscriber Set DNO Numbers

It's all about the data!

RealNumber DNO is the ONLY DNO list that comes direct from the trusted administrator of the North American Numbering Plan (NANP), the TFNRegistry™ and the TSSRegistry™.

Auto Set

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.


TSSRegistry Number Set

RealNumber DNO is fully integrated with the authoritative registry for text enabled Toll-Free Numbers, the TSSRegistry™. This ensures that any Toll-Free Number that is NOT text enabled within the TSSRegistry will be automatically added to RealNumber DNO for text dataset.

Subscriber Set

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.

ITG Number Set

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 At-a-Glance

  • Gain visibility into over 6 billion Toll-Free and 10-digit local (and counting!) numbers that have already been identified as DNO for voice.
  • Access to over 33 million Toll-Free Numbers identified as DNO for text to help keep your messaging networks free from unwanted and illegal text messages. 
  • Available via API for simple and efficient implementation to ensure you have the most up-to-date information possible. 
  • Help harden your Robocall Mitigation Strategy and comply with FCC regulations aimed at safeguarding consumers against the unlawful practice of voice and text spoofing
  • 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 solution to help maintain compliance with the recent FCC mandate
  • 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. 

The Stats Don't Lie!

1B Calls per day compared against the RealNumber DNO dataset
17% A Gateway Provider identified a 17% hit rate upon implementation
90% A leading wireless provider saw a 90% reduction in customer reported robocalls when coming from a provider who has implemented DNO

Interested in Learning More About RealNumber DNO?

Stay ahead of the fraudsters and stop illegal and unwanted voice or text traffic. RealNumber® DNO is the key to helping comply with upcoming enforcement of FCC mandates to block calls and texts from numbers that do not originate traffic!

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