Consider Internationalization and User Input

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When building forms or applications:

Provide a country selector dropdown with country codes.

Use input masks or formatters to guide users as they enter phone numbers.

Automatically add the country code based senegal mobile phone number list on user selection or location.

Allow users to enter numbers in either local or international formats, then convert before saving.

Good user experience encourages accurate data submission and reduces formatting errors.

6. Securely Store and Handle Phone Numbers
Phone numbers are often personally identifiable information (PII). Ensure your storage and handling comply with data privacy laws like GDPR or CCPA by:

Encrypting phone numbers in the database if needed.

Controlling access to phone data with proper authentication.

Masking or anonymizing numbers in UI when full display isn’t necessary.

Sample Workflow to Store Phone Numbers with Country Codes
User inputs phone number via web or mobile form.

User selects their country or the app detects country automatically.

The input number is cleaned and normalized using a phone number library.

The normalized E.164 number (e.g., +14155552671) is validated for correctness.

The number is stored as a VARCHAR string in the database.

Optionally, the country code (e.g., “1”) is stored in a separate column.