How are blocked numbers chosen?

User reports play a crucial role in continuously improving the block list.

The selection of numbers to block is based on several criteria:

• Prefixes reserved for telemarketing: the prefixes published by ARCEP are blocked automatically.
• Reported carriers: carriers that receive the most reports in the app.
• Most reported numbers: a number that exceeds a certain number of reports. How this threshold works is detailed in What is number reporting for?

The lists are updated daily to keep the database current. You can view all numbers in the app, in the "Lists" tab. To check whether a specific number is in the Saracroche database, use the reverse lookup.