Call Prefix Filter

Thank you for checking out Call Prefix Filter!

With this Android app, you can design a set of filter rules that start with specific numbers.

Feature summary:

✓ Blacklist

⇒ Specific prefixes that are blocked from the user.

✓ Whitelist

⇒ Specific prefixes that are allowed through the filter.

✓ Exact number

⇒ The prefix can be specified an exact number.

✓ Number length

⇒ Setting to allow through numbers of only certain lengths.

✓ Contacts

⇒ The number in contact list is allowed through the filter by default. This feature can be disabled.

✓ Unknown number

⇒ Block an incoming call which number is not shown. This feature is disabled by default.

✓ Disable filter

⇒ The call filter can be disabled.

✓ Call log

⇒ The app has a call log page. The context menu features filter editing and web search.

✓ CSV export & import

⇒ The filter rules can be saved to CSV file for backup and transfer purposes.

The app is published on Google Play.

The app is also available on Amazon Appstore.

You may download the APK file and install the app from your phone.

Version 3.x.x works on Android 10.0 and newer.

v3.0.2 APK SHA-256 7d307fd26f577faa3ae9ca2350a9efadea06b92d9bc894a39661442637c8efb3

Version 2.0.1 is recommended for Android 2.3 to 7.0.

v2.0.1 APK SHA-256 22bd96a8380ad023df7071d41452ca6ff63425567799bc50f9552c77984965cf

The APK files are also uploaded to a GitHub repo.

This web page has 5 sub pages.

The app is a free service.

No warranty statement. A brief on the app's test environment.

An operation guide.

Explain the CSV format used in export and import.

The app's version log.

Credits to various sources.

Google Sites

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