DNC list

A DNC list, or do-not-call list, is a collection of telephone numbers that should be excluded from specified calling activity. It may represent a business's own suppression records, an external registry or both. The applicable scope depends on the reason for suppression, the type of communication and the rules of the relevant jurisdiction.

Internal opt-out records and public registries serve related but distinct purposes. A number absent from one registry may still be inappropriate to call because of a direct request, missing consent or another restriction. Effective suppression requires matching numbers consistently, updating records promptly and applying the rules before an attempt begins. Teams should preserve enough context to understand when a request was received and what it covers without retaining unnecessary personal information. A DNC process is an operational control rather than a substitute for legal review. Its requirements may differ between markets and between live, automated and recorded calls.