Block the number inside your Messages app first, then report it as spam if the message is suspicious. On iPhone, use the contact or message details screen. On Android, use Google Messages or Samsung Messages, depending on your phone. Blocking stops alerts from that sender, but it does not always stop every future attempt if the person switches numbers.
TLDR: On iPhone, open the text, tap the sender, choose Info, then select Block Caller. On Android, long press the conversation or open the message menu and choose Block or Block and report spam. For example, if you get 15 scam texts a week from rotating numbers, blocking one sender helps, but turning on spam protection will usually save more time. If the sender is threatening you, take screenshots before blocking.
What Blocking Text Messages Actually Does
Blocking a number is a local control on your phone. It tells your device not to show calls, texts, or alerts from that sender. It is useful for harassment, repeated spam, old contacts, debt scams, fake delivery messages, and annoying sales pitches.
Still, blocking is not magic. A determined person can text from another number. A scam operation can use hundreds of numbers. That is why serious message control usually needs three steps:
- Block the sender.
- Report spam or junk when the option appears.
- Filter unknown senders or turn on spam protection.
The catch is that phone makers hide these controls in slightly different places. It feels ridiculous that blocking a text can take ten seconds on one phone and nearly a minute on another, but that is where we are.
How to Block Someone From Texting You on iPhone
Apple makes blocking fairly clean once you know where to tap. This works for SMS texts, MMS messages, and iMessages from a phone number or Apple ID email address.
- Open the Messages app.
- Open the conversation from the person you want to block.
- Tap the sender’s name, number, or profile icon at the top.
- Tap Info.
- Tap Block this Caller.
- Confirm by tapping Block Contact.
After this, your iPhone should no longer notify you about messages from that number. The blocked person does not get a pop-up saying they were blocked. Their messages may appear to send from their side, which is often useful if you want to avoid more conflict.
If the sender is saved as a contact with multiple numbers or email addresses, check the full contact card. Blocking only one number may not block every way they can reach you. Add all known numbers and Apple ID emails to the blocked contact list.
How to Find Blocked Numbers on iPhone
To review or remove blocked senders:
- Open Settings.
- Tap Messages.
- Tap Blocked Contacts.
- Swipe left on a contact and tap Unblock if needed.
You can also go to Settings > Phone > Blocked Contacts. Apple shares the list across Phone, Messages, and FaceTime, so one blocked contact is blocked across those apps.
Use iPhone Filters for Unknown Senders
If spam is the real problem, blocking one number at a time gets old fast. Turn on filtering instead:
- Open Settings.
- Tap Messages.
- Turn on Filter Unknown Senders.
This separates messages from people who are not in your contacts. You will see a separate category in Messages. It does not block every spam text, but it reduces interruptions. Be careful with banks, delivery services, clinics, and two factor authentication codes. Some legitimate messages may land outside your main inbox.
How to Block Someone From Texting You on Android
Android blocking depends on the messaging app. Most newer Android phones use Google Messages. Samsung phones may use either Google Messages or Samsung Messages. The steps are close, but not identical.
Blocking in Google Messages
- Open Messages.
- Open the conversation you want to block.
- Tap the three dot menu in the upper right.
- Tap Details or Block and report spam.
- Choose Block.
- Leave Report spam checked if the message is unwanted or suspicious.
You can also long press a conversation in the message list. On many phones, a block icon or spam option appears at the top. This is the fastest method when you are clearing several junk messages.
Blocking in Samsung Messages
- Open Samsung Messages.
- Open the conversation.
- Tap the three dot menu.
- Tap Block contact or Block number.
- Confirm the block.
On some Samsung devices, you can also go to Messages > Settings > Block numbers and spam. From there, you can add numbers manually, block unknown numbers, or review blocked conversations.
Turn On Android Spam Protection
For Google Messages, spam protection is one of the most useful settings:
- Open Google Messages.
- Tap your profile icon.
- Tap Messages settings.
- Tap Spam protection.
- Turn on Enable spam protection.
This helps detect common scam patterns, such as fake package delivery texts, bogus bank warnings, and “wrong number” messages that turn into investment scams. Honestly, it feels like this should be on by default everywhere, but some phones still leave users to hunt for it.
iPhone vs Android: Which Blocking Is Better?
iPhone is simpler. The menu is consistent, and the block list is shared across calls, messages, and FaceTime. If you help family members with phone settings, Apple’s approach is usually easier to explain.
Android is more flexible. Google Messages offers strong spam reporting, and Samsung gives extra blocking controls on many models. The downside is inconsistency. A Pixel, Galaxy, Motorola, and OnePlus may show different menus.
- Best for simple blocking: iPhone.
- Best for spam reporting: Google Messages on Android.
- Best for manual controls: Samsung phones often offer more options.
- Most confusing setup: Android phones with multiple messaging apps installed.
What to Do If Blocking Does Not Stop the Texts
If texts keep coming from new numbers, do not keep replying. Replies can confirm your number is active. Instead, use these steps:
- Report the message as junk inside Messages or Google Messages.
- Forward spam texts to 7726, which spells SPAM, if your carrier supports it.
- Contact your carrier and ask about spam blocking tools.
- Use built in filters for unknown senders.
- Do not tap links in suspicious texts.
- Save evidence if the messages are abusive, threatening, or stalking related.
If someone is threatening harm, sharing private information, or ignoring direct requests to stop, treat it seriously. Take screenshots with dates and phone numbers visible. Keep the messages if you may need to file a police report, request a restraining order, or document workplace harassment.
Can the Other Person Tell They Were Blocked?
Usually, not directly. iPhone does not send a “blocked” notice. Android does not either. The sender may suspect it if calls fail, messages get no response, or iMessage bubbles behave differently. Still, there is no official alert that says you blocked them.
That privacy matters. Blocking should reduce contact without creating a fresh argument. If safety is a concern, avoid warning the person before you block them.
Final Practical Advice
For one annoying contact, block the number in the message thread. For repeated spam, turn on filtering and spam protection. For harassment, collect evidence first, then block. The right choice depends on the risk. A coupon spammer is one thing. A threatening ex, scammer, or stalker is another.
Use blocking as the first step, not the only step. Pair it with reporting, carrier tools, and careful record keeping when the situation is serious.
