1. Toku Help Center
  2. Privacy and Security

Is information in a "Do Not Call" (DNC) registry considered "personal data"?

Learn how Toku can help you respect your customers' privacy and maintain compliance with the law.

Phone numbers don’t actually mean much on their own. That being said, checking whether end-users' and your customers' phone numbers are on a DNC list is an important step in preparing for sending outbound SMS campaigns, especially for marketing purposes.

Unless your customers have given you explicit consent to communicate with them via SMS, or you are at all uncertain about your responsibilities as a custodian of your customers' data, a DNC check is highly recommended and could save you a huge amount of money and headaches, in the long run.

In Singapore, for example, fines for violations of the DNC regulations can be expensive (up to S$10,000, per occurrence!).

More importantly, the only information needed to run a DNC check is the phone number you want to verify as being on or off the list. Other information that would be considered private data (like the combination of a phone number, name and address) and any other information you might have associated with those numbers, is unnecessary. All we need are phone numbers, by themselves!

With that information, we can check the list of numbers against any DNC registry, and provide you with a report that shows which (if any) of those numbers are covered by the DNC. Once that’s done you can flag the customers, users, or accounts that relate to those numbers.

At that point, stop and pat yourself on the back because you’ve just taken another step towards ensuring that your customers' private data and, more importantly, their expectations of you as a business are protected and respected.

Important Links