Help Protect the Integrity of Phone Numbers with RealNumber® DNO

Be Part of the Solution Helping to Drive Trust & Confidence in Phone Numbers Using RealNumber®!

RealNumber DNO, DNO, Do Not Originate

In the fight against fraud in telecom, RealNumber® Do Not Originate (DNO) is helping to bring back trust in telephony – one number at a time. And with its robust Toll-Free and local number dataset, the solution has shown itself to be a powerful tool in protecting valuable number assets and the prevention of calls from spoofed numbers getting passed on to consumers. RealNumber DNO can offer a one-stop solution that is comprehensive, affordable and user-friendly.

RealNumber DNO At-a-Glance

  • Allows Responsible Organizations (Resp Orgs) to identify in-bound only Toll-Free Numbers and 10-digit local numbers as Do Not Originate (DNO) to aid in fraud prevention
  • Gain visibility into over 6 billion Toll-Free and local (and counting!) numbers that have already been identified as DNO
  • Access RealNumber DNO data via an API query or flat file bulk download
  • Harden your Robocall Mitigation Strategy
  • Helps 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

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
2.8M Subscriber Set DNO Numbers

The Benefits of RealNumber DNO

Auto Set

Numbers that are automatically entered into the database and thereupon set as DNO. The Toll-Free and 10-digit numbers included in this data set are procured directly from two authoritative sources: the TFNRegistry™, the NANP and NPAC. The

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 origination.

Dynamic DNO

Resp Orgs have access to quickly set DNO for ALL numbers associated with a specific Resp Org ID.

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.

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?

Whether you’re looking to access data fields for Toll-Free Numbers, local numbers – or both! – now is the perfect time to see firsthand how RealNumber DNO can help prevent fraud on your network. Get in touch with a Somos team member today and join your peers in becoming an active contributor to the continued health and longevity of our industry!

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RealNumber also supports A-Level Attestation and STIR/SHAKEN Compliance!

Learn more about RealNumber Right to Use (RTU) today!

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