Insights

It Takes Two to Tango: Behind the Scenes of the RealNumber® DNO Dataset

Aug 02, 2022

Just like a dance number, a substantial amount of careful choreography went into developing the data repository for Somos’ proprietary RealNumber® Do Not Originate (DNO) solution. From how the data would be collected to how it would be accessed (and by whom), it was critical that everything about RealNumber DNO’s fraud protection capabilities were “en pointe.”

Speaking in particular to “how the data would be collected,” it’s hardly been a solo effort; but rather, a synergy of two different modes of entering identified numbers – more specifically, numbers that have been identified as invalid, unallocated or those that should otherwise never originate calls – into RealNumber DNO’s database: Auto Set and Subscriber Set.  

In the case of the former, Auto Set numbers refer to 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™ and the North American Numbering Plan (NANP), both of which are numbering asset registries administrated by Somos. Examples of numbers that are auto set – AKA entered into RealNumber DNO’s database by default – include unassigned, spared and disconnected numbers.

As opposed to auto set numbers, Subscriber Set numbers are Toll-free and local 10-digit numbers that are manually entered by Responsible Organizations (Resp Orgs) and Service Provider Identification Number (SPID) owners. To be able to manually add Toll-Free and 10-digit numbers to RealNumber DNO’s dataset, users must be registered with the database and logged into the system’s interface. This helps to ensure that the numbers entered by these entities are valid and have been properly vetted.

While all the numbers entered into the registry are principal dancers, most would agree that the 2.3M subscriber set numbers in RealNumber DNO’s database are the true stars of the show. From conference call bridges to inbound only call center customer service lines to vanity numbers being used for advertising purposes, the numbers that are manually set by Resp Orgs and SPID owners have all been explicitly – and conspicuously – marked as lines that should never originate a call.

Now that you’ve had the chance to get to know RealNumber DNO’s duo of dataset entry types, we invite you to go even further behind the scenes and learn more about how the partnership of subscriber and auto set numbers are helping to save networks from scammers, promote consumer advocacy and more!

Email connect@somos.com today and see how, with the help of RealNumber DNO, you can ensure that trust in telecom is always