How to Block Text Messages From Unknown Numbers on Android

Charlotte Daniels

Android, Tutorials

Blocking text messages from unknown numbers on your Android device can help you avoid spam, unwanted messages, and potential scams. Fortunately, Android provides a built-in feature that allows you to block these messages easily. In this tutorial, we will walk you through the steps to block text messages from unknown numbers on your Android device.

Step 1: Open the Messaging App

To begin, open the messaging app on your Android device. This app is usually pre-installed and can be found in your app drawer or home screen.

Step 2: Access Message Settings

Once you have opened the messaging app, look for the three-dot menu icon in the top-right corner of the screen. Tap on it to open a dropdown menu and select “Settings” from the options.

Step 3: Navigate to Spam Settings

In the message settings menu, scroll down until you find an option called “Spam settings” or “Blocked numbers.” Tap on it to access the spam settings.

Step 4: Add Numbers to Block List

In the spam settings menu, you will see an option to add numbers to your block list. Tap on it, and you will be presented with different ways to add numbers.

  • Add from Call Log: This option allows you to block a number that has recently called you. Simply select this option and choose a number from your call log.
  • Add from Contacts: If a contact is bothering you with unwanted messages, select this option and choose a contact from your contacts list.
  • Add Manually: If you have received a message from an unknown number that you want to block, select this option, and manually enter the number.

Choose the appropriate option based on your preferences and add the numbers you want to block.

Step 5: Confirm Blocking

After adding the numbers to your block list, confirm the blocking action. The steps may vary depending on your device and messaging app, but typically you will be prompted to confirm by tapping “OK” or a similar confirmation button.

Step 6: Verify Blocked Numbers

To verify that the numbers are successfully blocked, go back to the spam settings menu and check your block list. The blocked numbers should be listed there.


If you receive messages from blocked numbers in the future, they will be automatically filtered into a separate spam folder or deleted without notification, depending on your messaging app’s settings. However, it’s always a good idea to periodically review your block list to ensure it includes all unwanted numbers.


Blocking text messages from unknown numbers on Android can help you maintain a clutter-free inbox and protect yourself from potential scams. By following these simple steps outlined in this tutorial, you can easily block unwanted messages and have a more peaceful messaging experience on your Android device.

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