LineShield

Verify phone lines registered to your name in Mexico CRT portals

Discover if someone registered phone lines to your name without permission.

LineShield automatically queries 80+ official CRT portals in Mexico. Your data is encrypted on your device and deleted after 24 hours. No external servers, no ads, no tracking.

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This app has features you may not like. Learn more!

This app promotes or depends entirely on a non-free network service

Relies on official Mexican CRT (Comisión de Registro Telefónico) carrier portals to query phone lines registered under the user's name, as required by Mexican law.

Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

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Version 1.4.0 (4) suggested Added on Jun 09, 2026

arm64-v8a armeabi-v7a x86 x86_64

This version requires Android 8.0 or newer.

It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Permissions
- have full network access
  
  Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
- mx.sixseven.crtlineas.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Download APK 2.0 MiB PGP Signature | Build Log

Anti-Features

Versions

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