Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.
Backup SMS by Piandro - Backup SMS is an app by Piandro that allows you to choose the desired conversation or text message to add it to the backup list to save it for later use.
Contacts Backup and Restore Contact - Contacts Backup and Restore Contact app enable users to get back all their lost and deleted phone numbers by restoring the available backup file with a single tap.
Kontact - Kontact is the integrated Personal Information Manager of KDE.
Open Contacts - Open Contacts is an advanced address book program for managing contact info of individuals and...
ECBackup - ECBackup app provides features through which you can create a backup file to save your phonebook to save your phone numbers from deletion without having to access a computer.