Unknown Call Blocker
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About this app
■ Call Filter with Customizable Blocking Conditions
"Unknown Call Blocker" is a customizable call filter that allows you to choose exactly which types of incoming calls you want to block.
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■ Block Conditions You Can Choose
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● Block Blacklisted Numbers
Block specific numbers you have registered and never want to receive calls from again.
● Block Non-Contacts
Block calls from any number not saved in your contacts list.
(Contacts permission is only used when this specific option is enabled.)
● Block International Calls
Block overseas calls that include a country code (starting with +).
● Block Hidden / Private Numbers
Block calls where the caller ID is hidden (Private, Public Phones, etc.).
● Block 050 IP Phones
Block IP phone numbers starting with "050".
● Block 0800 Toll-Free Numbers
Block numbers starting with "0800".
● Allow Known Caller Names (Toggle ON/OFF)
Choose whether to allow calls that display a carrier-provided caller ID name (e.g., "City Hall").
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■ Guaranteed Call Delivery
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● Emergency Numbers Always Allowed
Emergency numbers detected by the network will always be allowed through, regardless of your blocking settings.
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■ Additional Features
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● Block History
View a list of when and which numbers were blocked. Supports deleting individual entries or the entire history.
● Block Notifications (Toggle ON/OFF)
Choose whether or not to display a notification when a call is blocked.
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■ Privacy
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All processing is handled entirely on your device.
Your contacts and call history are never sent to external servers.
Access to your contacts is requested only when the "Block Non-Contacts" feature is enabled.
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■ Important Notes
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• Blocked calls are processed silently without ringing. From the caller's perspective, it will behave the same as a "busy" signal.
• This app will only function when it is set as your device's default "Call Screening App".
"Unknown Call Blocker" is a customizable call filter that allows you to choose exactly which types of incoming calls you want to block.
━━━━━━━━━━━━━━━━━━━━
■ Block Conditions You Can Choose
━━━━━━━━━━━━━━━━━━━━
● Block Blacklisted Numbers
Block specific numbers you have registered and never want to receive calls from again.
● Block Non-Contacts
Block calls from any number not saved in your contacts list.
(Contacts permission is only used when this specific option is enabled.)
● Block International Calls
Block overseas calls that include a country code (starting with +).
● Block Hidden / Private Numbers
Block calls where the caller ID is hidden (Private, Public Phones, etc.).
● Block 050 IP Phones
Block IP phone numbers starting with "050".
● Block 0800 Toll-Free Numbers
Block numbers starting with "0800".
● Allow Known Caller Names (Toggle ON/OFF)
Choose whether to allow calls that display a carrier-provided caller ID name (e.g., "City Hall").
━━━━━━━━━━━━━━━━━━━━
■ Guaranteed Call Delivery
━━━━━━━━━━━━━━━━━━━━
● Emergency Numbers Always Allowed
Emergency numbers detected by the network will always be allowed through, regardless of your blocking settings.
━━━━━━━━━━━━━━━━━━━━
■ Additional Features
━━━━━━━━━━━━━━━━━━━━
● Block History
View a list of when and which numbers were blocked. Supports deleting individual entries or the entire history.
● Block Notifications (Toggle ON/OFF)
Choose whether or not to display a notification when a call is blocked.
━━━━━━━━━━━━━━━━━━━━
■ Privacy
━━━━━━━━━━━━━━━━━━━━
All processing is handled entirely on your device.
Your contacts and call history are never sent to external servers.
Access to your contacts is requested only when the "Block Non-Contacts" feature is enabled.
━━━━━━━━━━━━━━━━━━━━
■ Important Notes
━━━━━━━━━━━━━━━━━━━━
• Blocked calls are processed silently without ringing. From the caller's perspective, it will behave the same as a "busy" signal.
• This app will only function when it is set as your device's default "Call Screening App".
Block calls from unknown numbers.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- No data collectedLearn more about how developers declare collection
- Committed to follow the Play Families Policy
What’s new
Initial release.
