Confirm the data source
Use owned, opted-in, or clearly authorized numbers. Unknown scraped lists should not be imported for outreach.
Clean before region filtering
Remove noise such as spaces, brackets, headers, and invalid characters before grouping by country, state, or city.
Dedupe before packages
Repeated numbers across packages create messy follow-up records. Dedupe first, then split by person, region, or count.
Make exports traceable
Record date, purpose, region, and count for each exported file so later feedback can be traced.
FAQ
Can any IM list be exported for messaging?
No. Use authorized data and follow platform rules.
Should WhatsApp lists be TXT or CSV?
TXT is best for plain numbers; CSV is better when source or region fields must be kept.
Can US WhatsApp numbers be filtered by state?
If they are US phone numbers, App A can group them by state or region.