The fastest way to stop spam texts depends on your phone type

Most phones have a built-in block feature that works without downloading anything. On iPhone, open any text from a spammer, tap the sender's number or name at the top, scroll down, and tap "Block this Caller." On Android, open the message, tap the three dots in the top right, and select "Block number." Both methods stop that sender from reaching you again.

If you get spam from a number that changes each time, blocking individual senders becomes tedious. That is when you move to the second layer: telling your phone to filter unknown senders into a separate folder or to flag likely spam automatically. iPhone calls this "Filter Unknown Senders" (Settings > Messages > Filter Unknown Senders). Android's version is "Spam Protection" or "Spam and Abuse" depending on your phone model (Settings > Messages > Spam Protection, or Settings > Advanced > Spam and Abuse).

Turning on these filters does not block messages entirely — they just move them to a separate tab or mark them as spam. You can still read them if you want, but they will not interrupt you with notifications.

Key Takeaways

  • Block individual senders through your phone's native settings without installing apps: tap the sender's number and choose "Block" on iPhone or Android.
  • Enable your phone's built-in spam filter (Filter Unknown Senders on iPhone, Spam Protection on Android) to automatically separate likely spam into a different folder.
  • Do not reply to spam texts or click links in them, because responding confirms your number is active and often leads to more messages.
  • Report spam texts to your carrier by forwarding them to 7726 (SPAM) so they can track patterns and block sources at the network level.
  • If spam texts contain phishing attempts or impersonate your bank, report them to the institution directly and to the Federal Trade Commission at reportfraud.ftc.gov.

Report spam to your carrier so they can block it for everyone

Carriers like Verizon, AT&T, and T-Mobile can see patterns that individual users cannot. When you report a spam text to your carrier, they use that data to block the sender from reaching other customers. The easiest way is to forward the spam message to 7726 (which spells SPAM). Your carrier will receive it and add the sender to their block list if enough people report the same number.

You can also report spam directly to your carrier's app or website. Verizon has a spam reporting tool in their Messages app. AT&T lets you report through their website. T-Mobile has a spam filter you can manage in their app. The 7726 method works across all carriers and requires no login, so it is the fastest option if you just want to report and move on.

Reporting does not when ready stop all spam — it takes time for carriers to act on patterns. But it is the only way spam sources get blocked at the network level rather than just on your individual phone.

Do not reply to spam texts, even to unsubscribe

A spam text that says "Reply STOP to unsubscribe" is often a trap. Replying confirms that your number is active and monitored by a human, which makes your number more valuable to spammers. They will sell it to other lists or use it more aggressively themselves. The same is true for clicking links in spam texts — it signals that you opened the message and may be vulnerable to a scam.

The only exception is if the text comes from a company you actually do business with — your bank, your insurance company, your phone carrier. Those organizations have legal obligations to honor unsubscribe requests. But if you do not recognize the sender, do not engage. Block and report instead.

Use a third-party spam filter app if your phone's built-in tools are not enough

If you still receive heavy spam after enabling your phone's native filter, apps like TrueCaller, RoboKiller, and Nomorobo add an extra layer. These apps use crowdsourced data to identify spam before it reaches you. They work by analyzing the sender's number against a database of known spam sources and user reports.

TrueCaller is free and shows you the name of unknown callers before you answer, which helps you spot spoofed numbers. RoboKiller uses artificial intelligence to identify robocalls and spam texts. Nomorobo focuses on blocking calls and texts from known spam sources. All three require you to grant them access to your messages and contacts, so read their privacy policies before installing.

These apps are most useful if you receive spam from many different numbers or if your carrier's filter is not catching what you consider spam. They are not necessary for most people, but they exist if the built-in tools fall short.

Recognize phishing texts that pretend to be from banks or services you use

Spam texts often impersonate real companies to trick you into clicking a link or entering information. A text claiming to be from your bank asking you to "verify your account" or from PayPal saying "confirm your password" is almost certainly spam. Real banks and payment services do not ask you to verify sensitive information through text links.

If you receive a suspicious text claiming to be from a company you use, do not click the link. Instead, open your phone's web browser, go directly to the company's official website (not through a link in the text), and log in to check your account. If there is a real issue, you will see it there. You can also call the company's customer service number from your bill or their official website to ask whether they sent the message.

Report phishing texts to the company being impersonated and to the Federal Trade Commission at reportfraud.ftc.gov. The FTC uses these reports to track scam patterns and warn the public.

Limit who can text you by controlling your contact sharing

Spammers often get your number from data breaches, online forms, or lists they buy from data brokers. You cannot prevent all of this, but you can reduce how many new sources get your number going forward. When you sign up for online services, use a secondary email address or a temporary phone number if the service offers it. This keeps your primary number off more lists.

Be cautious about entering your phone number on public forms, contest entries, or websites that do not have a clear privacy policy. Spammers harvest numbers from these sources. If a website asks for your phone number and it is not essential to the service, consider whether you really want to provide it.

If you have already received spam, changing your number is an option but usually not necessary — blocking and filtering will handle most of it. Change your number only if the spam is so heavy that it interferes with your ability to use your phone for legitimate messages.

Understand the difference between spam and scam texts

Spam texts are unwanted marketing messages, usually from companies trying to sell you something or get you to click a link. Scam texts are designed to steal information or money — they impersonate banks, delivery services, or government agencies and ask you to take action (click a link, enter a code, confirm your identity).

Both are annoying, but scams are dangerous. A spam text about a discount is a nuisance. A scam text pretending to be your bank is a threat to your accounts. Treat scam texts more seriously: do not click links, do not reply, report them to the company being impersonated, and consider reporting them to the FTC or your state's attorney general.

Frequently Asked Questions

Will blocking someone stop them from texting me at all?

Yes. Once you block a number, that sender cannot reach you by text or call. The message will not come through, and they will not receive a notification that they were blocked. However, they can contact you from a different number, so blocking is most effective against spam sources that use the same number repeatedly.

Can I block texts from a specific word or phrase?

Not directly through your phone's settings. Your spam filter may catch messages containing common spam phrases, but you cannot create custom keyword filters on most phones. If a particular spam source keeps changing numbers but uses the same message, your phone's spam filter may catch it based on content, but results vary by phone model.

What if I block a number by mistake?

You can unblock it. On iPhone, go to Settings > Messages > Blocked Contacts and swipe left on the number to unblock. On Android, go to Settings > Messages > Blocked Numbers, find the contact, and tap "Unblock." The person will be able to text you again when ready.

Does reporting spam to 7726 cost money?

No. Forwarding a message to 7726 is free on all carriers. It counts as a text message for forwarding purposes, but most plans include unlimited texting. If you have a very limited plan, check with your carrier, but this is rare.

Can I get my number removed from spam lists?

There is no official way to remove your number from all spam lists at once. The National Do Not Call Registry stops telemarketing calls but not text messages. Some data brokers let you opt out of their lists through their websites, but you would have to find and contact each one individually. Blocking and filtering is more practical than trying to remove your number from every list.