Stop Neighbor Spoofing Spam Calls
Tired of spam calls from numbers that look like yours? Phone Pattern Blocker lets you block calls by pattern—set rules for area codes and prefixes to silence robocallers who use familiar-looking numbers to trick you into answering.
Free
"A must-have app that makes it so easy to cut down on spam calls."— BGR, 10 Great iPhone Apps You've Probably Never Heard Of
Pattern-Based Blocking
Block calls from (212) 555-XXXX or even (212) 555-12XX. Target specific number patterns used by spam callers.
Completely Private
No access to your calls, contacts, or call history. Everything stays on your device. Zero data collection.
Whitelist Support
Add exceptions for numbers or ranges you want to allow through, even within blocked patterns.
Free
Download and start blocking spam calls right away. No ads.
Real-Time Blocking
Integrates with iOS CallKit's directory extension blocking service for instant, real-time call blocking as calls come in.
How It Works
Spam callers often use "neighbor spoofing"—they call from numbers that share your area code and prefix, making them look like local calls. Phone Pattern Blocker integrates with Apple's CallKit framework to block these calls before they ever ring your phone.
- Add blocking patterns for number ranges you want to block
- Enable Phone Pattern Blocker in Settings → Phone → Call Blocking
- Spam calls matching your patterns are silently blocked
Built with native iOS frameworks for seamless integration with the Phone app. All blocking rules are stored locally on your device—no cloud services, no data collection, no privacy concerns.
Technical Details
Phone Pattern Blocker uses iOS CallKit's directory extension blocking service. iOS supports blocking approximately one million phone numbers through CallKit, allowing you to create comprehensive blocking patterns without impacting performance.