# DND (Do Not Disturb)

> A DND registry lets subscribers block promotional SMS at the operator level; in India and Nigeria, among others, marketing to DND numbers is filtered by the operators regardless of the sender's consent records.

Several regulators run national do-not-disturb lists. A number on the list does not receive promotional traffic; transactional messages still go through. The filtering happens at the operator, so a sender's own consent does not override it, and the message is reported as blocked or, sometimes, silently dropped.

DND explains a chunk of the failure share on marketing campaigns to India and Nigeria, and it is one reason to keep transactional and promotional traffic clearly separated.

At SMSMeteor: DND-blocked messages are reported with the carrier reason where the operator returns one; transactional traffic is not affected.

Related terms: [DLT (India)](https://smsmeteor.com/glossary/dlt), [Carrier filtering](https://smsmeteor.com/glossary/carrier-filtering), [Promotional SMS](https://smsmeteor.com/glossary/promotional-sms)

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Source: https://smsmeteor.com/glossary/dnd (HTML). Generated by SMSMeteor from the same data as the page. Summary of the whole site: https://smsmeteor.com/llms.txt