ОткудаЗвонок is a useful utility app for iPhone users that allows you to find out who is calling you and provides information about unwanted callers. With integration into the system, you can see information about the caller even before answering the call, in the call history, and when dialing a number. The app also allows you to identify the region and operator of the number, taking into account number portability.

Key features of the app include a comprehensive database of over 400,000 verified numbers of scammers, fraudsters, collectors, banks, call centers, and sellers. The database is regularly updated to ensure accuracy. You can also filter SMS messages by number or mask, create personal black and white lists of numbers, and share numbers from the black list with the community.

The app provides instant and easy identification of the operator, region, country, and additional information for Russian numbers using publicly available data. It also integrates seamlessly with the Phone app, providing caller identification for incoming calls, unknown numbers in call history and missed calls, and number verification when dialing.

Protect your time and nerves with ОткудаЗвонок and never be bothered by unwanted callers again!