Check the trash or recently deleted folder in your contacts app
Restore contacts from your phone’s cloud backup
Restore contacts from your Google account contacts backup
Restore contacts from your iCloud backup
Check synced accounts such as Outlook, Exchange, or Gmail
Use your phone’s restore from backup option
Import contacts from a saved VCF or CSV file
Recover contacts from your SIM card if they were stored there
Check other devices signed in to the same account
Contact your carrier or device support if no backup is available