Block Spam SMS With No Number

‘Block’ Spam SMS With No Number

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This article describes how to ‘block’ spam SMS text messages that have a name instead of a number and is specific to smartphones that use the Android operating system.

Without installing any third-party apps, this guide shows the steps taken on a Samsung S8 smartphone to ‘block’ spam SMS messages that have no number, by constructing a filter to identify and capture them.

Samsung S8

It replaces an older article written for the Samsung S3 mobile phone: How To Block Text Message SMS Spam on Samsung Galaxy Phones (Android)

Smartphones that run on an Android operating system are capable of diverting spam SMS text messages to a spam folder, even if the telephone number is absent from the message or the telephone number has been replaced with a name. Although these messages are still received by your handset, the method of identifying and diverting spam in this way creates the illusion that the nuisance message has indeed been blocked.

To ‘block’ spam SMS text messages that have a name instead of a number, follow these simple steps:-

STEP 1: Open the Samsung Messages app.

Samsung S8 Messages App

STEP 2: Identify the spam SMS text message and tap it.

Identify Spam SMS

 

STEP 3: Take note of the keywords or phrases that are in every message received.

SPAM SMS Message – Note the Keywords

In this example, I use the name of the sender, LloydsBank and the word ENTRIES.

STEP 4: Go back to your list of messages by pressing the back arrow, top left.

STEP 5: Open message options by tapping the three dots at the top right of the screen

Message Options

STEP 6: From the options that appear, tap Settings.

STEP 7: Tap Block messages

Block messages

STEP 8: Tap Block phrases – Manage the phrases that will cause incoming messages to be blocked.

Block phrases

STEP 9: Enter the keywords or phrases noted in step 3.

Block keywords and phrases

Type a keyword or phrase then tap the plus (+) symbol to add it to the list. Remove a keyword or phrase by tapping the minus (-) symbol associated with that text.

As soon as a keyword or phrase is entered, then any new SMS message that contains that text will be diverted to the Blocked messages folder and effectively ‘blocked’.

It is important to note that:-

  • phrase matching is not case sensitive and all text entries are stored in lower case.
  • if a genuine SMS text message contains one of your chosen keywords or phrases, then that message will be ‘blocked’ too. It is therefore important to choose your keywords and phrases carefully.

STEP 10: You’re done!

Return to the Messages main list by tapping the back arrows on each of the option screens.

How to check Blocked messages

Once you have your keywords and phrases in place, it is worth checking your spam SMS folder occasionally to check its effectiveness.

Blocked messages

The Blocked messages list can be accessed from the Messages main conversation screen by tapping the three dots, top right, and selecting:-

Settings > Block messages > Blocked messages

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