How to Block Text Messages From Unknown Numbers on iPhone and Android

How to Block Text Messages From Unknown Numbers on iPhone and Android

Receiving irrelevant text messages throughout the day can hinder productivity. Enabling DND (do not disturb) on your phone may result in missed messages, alerts, and calls. Instead, use the following tricks to block text messages from unknown numbers on iPhone and Android.

Both iOS and Android have advanced messaging apps for handling text messages efficiently. However, the default settings are incapable of protecting you from spam messages. To prevent text messages from unknown numbers, you will need to modify the system settings.

Here are the step-by-step instructions for doing so.

Blocking unknown texts on iPhone can be done in several ways. You can block texts from certain contacts, prevent unknown numbers from texting you, and report spam messages.

You can block the recipient from the Messages app on your iPhone.

Step 1: Launch Messages on iPhone.

Step 2: Open a conversation. Tap the contact name at the top.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Step 3: Tap the ‘info’ menu.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Step 4: Select ‘Block this Caller’ and hit Block Contact at the bottom.

How to Block Text Messages From Unknown Numbers on iPhone and Android How to Block Text Messages From Unknown Numbers on iPhone and Android

Blocking someone on an iPhone has implications.

You can block text messages from specific contacts using the Contacts app. Here’s how:

Step 1: Open the Phone app on iPhone.

Step 2: Go to the Contacts tab.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Step 3: Select a contact to block.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Step 4: Tap ‘Block this Caller’ and confirm.

How to Block Text Messages From Unknown Numbers on iPhone and Android

The objective is to review and eliminate redundant words or phrases to enhance clarity and readability while maintaining the original meaning.

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You should eliminate unnecessary contacts from reaching your inbox.

Apple’s Messages app filters unknown numbers on iPhone. Enable the option from system settings.

1. Open Settings on your iPhone.

2. Scroll to Messages.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Step 3: Select ‘Unknown & Spam’ in the Message Filtering menu.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Step 4: Turn on the ‘Filter Unknown Senders’ toggle. Checkmark the SMS filter option. Wait for a minute or two, then open the Messages app.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Step 5: In the Messages app, tap Filters.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Step 6: Find your text messages categorized in Known Senders, Unknown Senders, Transactions, Finance, Orders, Reminders, and Promotions.

Step 7: Tap Unknown Senders.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Step 8: Open a conversation with the sender you want to block.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Step 9: Tap on the unknown number at the top. Select info from the menu.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Step 10: Tap ‘Block this caller’ and confirm.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Repeat the steps for all irrelevant numbers from the Unknown Senders menu and remove spam from your iPhone.

4. Report Text Messages as Spam

If a sender is not on your contacts list, you can report the conversation as junk by sending it to Apple.

To report a conversation as spam:

1. Open Messages and select the conversation.

2. Tap ‘Report Junk’ at the bottom.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Step 3: Select ‘Delete and Report Junk’.

5. Silence Notifications From Unknown Numbers

Marketing companies have become smarter. If you block a number, they might spam you with another number. iOS offers an option to turn off notifications from unknown senders. Here’s how to silence unknown texts on iPhone.

Step 1: Open Messages in iPhone Settings.

Step 2: Select Notifications.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Step 3: Scroll to Customize Notifications.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Step 4: Turn off Unknown Senders on iPhone.

How to Block Text Messages From Unknown Numbers on iPhone and Android

iOS will disable notifications for unknown senders on iPhone. You can open Messages and go to Filters to view text messages from unknown numbers.

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How to Block Unknown Texts on Android

The default Messages app on Android has spam protection to save you from unnecessary text messages. Here are ways to stop such messages.

1. Enable Spam Protection in the Messages App

To review and eliminate redundancy in the provided text, here are the refined steps:

Step 1: Open the Messages app on Android. Step 2: Tap the three-dot menu in the top-right corner.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Step 3: Select Settings.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Scroll to the ‘Spam protection’ menu.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Step 5: Turn on the ‘Enable spam protection’ toggle from the menu.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Messages sends data to Google without including your phone number or message content.

To block a specific number that dominates the Messages spam box, follow these steps:

1. Open Messages on Android and select a conversation.

2. Tap the three-dot menu in the top right corner.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Step 3: Select Details from the menu.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Step 4: Select ‘Block and report spam.’

How to Block Text Messages From Unknown Numbers on iPhone and Android

Confirm your decision in the dialog box. If you still get spam calls on Android, use Truecaller Assistant to screen and avoid unnecessary interactions.

Check the steps below to block texts from unknown numbers in WhatsApp. After all, the recipient only needs your phone number to reach your WhatsApp inbox.

Note: The steps are similar for iOS devices as well.

Step 1: Launch WhatsApp and open a conversation from an unknown number.

Step 2: Tap Block at the top. Select Block.

How to Block Text Messages From Unknown Numbers on iPhone and Android How to Block Text Messages From Unknown Numbers on iPhone and Android

From now on, the contact can’t reach you on WhatsApp.

Samsung uses a different Messages app on Galaxy phones. To block SMS from an unknown number on your Samsung phone, follow these steps:

1. Open the Messages app.

2. Open an unknown conversation.

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3. Tap Block number at the top.

How to Block Text Messages From Unknown Numbers on iPhone and Android

To delete a conversation, follow these steps:

1. Enable the checkmark beside ‘Delete conversation’.

2. Hit Block.

That’s it! The conversation will be deleted.

How to Block Text Messages From Unknown Numbers on iPhone and Android

Block Text Messages From Unknown Numbers: FAQs

Can the blocked number send messages on WhatsApp or Telegram?

Yes, the blocked number can reach you on WhatsApp and Telegram. You need to block them on those platforms as well.

Can the person call me if I block their texts?

When you block someone’s texts, they can’t call you either.

Getting numerous messages from unknown numbers can clutter your Messages app. To avoid missing important messages, follow these steps to block texts from unknown numbers on iPhone and Android.

Parth Shah

Parth Shah is a freelance writer specializing in how-tos, app guides, comparisons, listicles, and troubleshooting guides for Android, iOS, Windows, Mac, and smart TV platforms. With over five years of experience, he has written 1,500+ articles for twothirds.us and Android Police. Apart from writing, he enjoys binge-watching Netflix shows, reading books, and traveling.

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