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How to Stop Spam Texts and Unwanted SMS Messages

Filter unknown senders, block repeat numbers, and report suspicious texts—without clicking unexpected links or replying to potential scammers.
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To stop spam texts, don’t click unexpected links or share personal or financial information. Filter unknown senders, block repeat senders, and report suspicious messages by forwarding them to 7726, using your messaging app’s report option, or submitting a report to the FTC. These steps can reduce unwanted messages, but no single control guarantees that all spam will stop.

What to do when a suspicious text arrives

  1. Don’t engage with the message. Don’t click unexpected links or provide account, personal, or financial information. If the text might be legitimate, contact the organization using a phone number or website you already know is genuine—not contact details in the message. The FTC’s guidance on recognizing and reporting spam texts recommends this approach.
  2. Block or filter the sender. Filtering can move messages from unknown senders out of your main inbox or suppress notifications. Blocking targets a particular sender and is useful when the same number keeps contacting you.
  3. Report the message. In the U.S., you can forward it to 7726 (SPAM), report it in your messaging app, or submit it at ReportFraud.ftc.gov. Forwarding to 7726 helps your wireless provider identify and block similar messages.

Reporting and blocking are different actions. For example, Apple says that reporting a message does not prevent further messages from that sender, so block the sender separately when appropriate. Don’t reply STOP to every suspicious text; if a message is from a business you trust, use its legitimate unsubscribe option only after verifying the sender.

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Stop spam texts on an iPhone

Filter messages from unknown senders

In Apple Messages, open Messages, tap the Filter button, select Manage Filtering, and turn on Screen Unknown Senders. This puts messages from unknown senders in a separate area and can suppress notifications unless you enable them. Where available, Apple’s Text Message Filter can sort unknown SMS, MMS, or RCS messages into Transactions and Promotions folders.

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Apple says these filters don’t apply to a sender you’ve replied to three times or more. If a conversation is still unwanted, block or report it. Feature availability and menu labels can vary by iOS version, carrier, and region. See Apple’s instructions for screening and filtering text messages.

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CPR V5000 Call Blocker for Landline Phones - You Can Manually Block All Calls with the Big Red Button - Pre-Programmed with 5,000 Known Nuisance Numbers - Caller ID is Required
  • COMPATIBILITY: For traditional analog landline phones and services from providers such as AT&T, Verizon, Frontier Communications, CenturyLink, and Brightspeed. Not compatible with internet-based or digital phone services (VoIP), including Vonage, Ooma, Xfinity Voice, and Quantum Fiber.
  • IMPORTANT: The V5000 CPR Call Blocker requires Caller ID service and an analog telephone line. Without Caller ID, incoming numbers cannot be identified or blocked. No mains power required - just plug it into your phone line and use.
  • Powerful Blocking, Made Simple: Preloaded with 5,000 verified scam and nuisance numbers, the V5000 starts protecting you right out of the box. And if a new or spoofed number gets through, the large “BLOCK NOW” button makes it easy to instantly block it - up to 1,500 additional numbers at your command.
  • Realistic & Reliable Protection: While no device can stop 100% of spam (scammers constantly change numbers), the V5000 gives you the power to shut down repeat offenders quickly and effectively - offering more control than passive filters alone.
  • Hassle-Free Design: NO POWER supply needed, NO APP, and NO SUBSCRIPTIONS. The V5000 is easy to install, with a clear screen and loud button click for extra confidence. Designed with seniors in mind, it’s ready to use and simple to maintain. For even stronger protection, you can pair it with your phone provider’s spam filtering service.

Block or report a sender

Blocking a contact or number stops delivery of messages from that sender. Apple also offers reporting for eligible messages. Reporting an iMessage sends sender information to Apple and permanently deletes the message from your iPhone; Apple says a mistakenly reported message can be recovered from Spam. Reporting SMS, MMS, or RCS messages depends on carrier and country or region. If the report option isn’t available for those message types, Apple directs users to contact their carrier. See Apple’s guidance on reporting spam and blocking senders in Messages.

Stop spam texts in Google Messages on Android

In Google Messages, touch and hold the conversation and choose Block, then confirm. Where available, choose the report-as-spam action to report the conversation; Google’s report flow also blocks the sender and moves the conversation to Spam & blocked. Google says you can report spam without blocking a contact, so check the option shown in your app if you want to report without taking that step.

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Enf860 Call Blocker for Landline Phones, Blacklist/Whitelist Dual Mode, Block spam Calls by Number and Name
  • [ IMPORTANT NOTE 1 ] This product is a call blocker only and does not have a telephone or answering machine function. No phone or answering machine is included in the package. Before purchasing, please make sure that your telephone line has Caller ID service and that it is an ANALOG line. the ENF860 requires Caller ID service from your telephone line provider to work and is for analog lines only ! No mains power required, just plug in the phone line to use
  • [ IMPORTANT NOTE 2 ] In BLOCK mode, there will STILL BE some new variant numbers bypassing the database making the phone ring, you NEED to manually set up to block them OR switch to FAMILY mode to let only the numbers in FAMILY LIST through. Please refer to the manual for the CORRECT SETTINGS.
  • Dual mode;In BLOCK mode you can block callers by Numbers and Names; In FAMILY mode all callers outside the FAMILY LIST are blocked;The two modes can be switched at any time as needed and NO data will be lost after switching modes.
  • Preloaded with a large number of spam numbers that have been the subject of repeated complaints ; Users can also manually add 4000+ numbers to the NUMBER LIST to build their own database ; Add 256 NAMES to block calls by name.
  • Blocks INTERNATIONAL, PRIVATE/WITHHELD, and Out of Area numbers by default; users can SET to block the entire area code or changing numbers starting with a fixed number, such as 00, 800, 855, 999, 7324, 33626, 134567, etc.

A spam report may send the sender’s number and recent messages to Google to improve spam detection. Google’s instructions also describe forwarding information to the mobile carrier. The exact interface can vary by Android version and app version. Consult Google Messages Help for reporting spam and its instructions for blocking senders for the current options.

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Choose the right kind of protection

Option What it does What to know
Unknown-sender filter Moves some messages out of the main inbox and may suppress notifications. It may not stop delivery, and its coverage depends on your phone, app, and settings.
Block a sender Stops messages from a specific number or contact, where supported. Useful for repeat senders; it doesn’t automatically address messages from other numbers.
Report in your messaging app Submits a spam report; some report flows also block the sender. Behavior varies by app and message type. Apple says reporting an iMessage alone does not prevent more messages.
Forward to 7726 Shares the message with your wireless provider to help it identify similar spam. This U.S. reporting option is separate from blocking the sender on your phone.
Carrier or third-party filtering May filter texts in addition to calls or device-level controls. Check whether the service supports your message types, device, carrier, and region, and review its cost and privacy terms.

The FTC says your wireless provider might offer tools or services to block calls and texts, and that some call-blocking apps also filter texts. Ask your provider what is available or review an app’s features before enabling it; availability and results vary.

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Digitone ProSeries 3 Call Blocker Automatic SPAM Blocking for Landline Phones - Easy Setup One Button Blocking of RoboCalls
  • How it Works: SPAM identified calls are instantly blocked automatically. Preferred Calls Ring through like normal with Caller ID displayed. Your phones connected to the TEL port Won't Ring on Blocked Calls. Create your own Invited or Allowed Family (White List) and block All other callers. Use the Dual Block Buttons to Block a NAME or NUMBER Displayed. Remote Block a Call when Dialing * 2 # through your telephone handset.
  • The Patented ProSeries 3 Call Blocker from Digitone is an Easy Installation and is Simple to Use. No need to rush over and tap a red button when the ProSeries has already blocked a known unwanted SPAM, Out of Area, Private, Anonymous, 800 Service, ROBO?, Dashes, "Quotes" or V123+ call. Use Call History to select Any Caller to Block by (Double Tap) Name or Number. Block any NAME like: Unavailable, Unknown, SCAM RISK, City + State, Potential Scam, Wireless Caller. Block ANY call without answering, as they call in with either RED button.
  • Feel confident that the ProSeries already Blocks Millions of Known Unwanted Numbers and Fake Names. No need to change your existing phones or service. Works with Any Analog Corded, Cordless Phone or Fax System on any telephone service. Large Back-Lighted Display. Got questions? Call the number on the front screen of the ProSeries 3.
  • Works with all USA phone companies: AT&T, Cox, Spectrum, CenturyLink, Cable Modems, DSL, FIOS, or Digital Services from VoIP Telcos like [V] from Verizon, Ooma Telo, Ooma Basic, Vonage, Magic Jack etc. Also, works in Mexico, Canada, Brazil, European Union (ETSI), Australia, Singapore and others with North American standardized phone lines.
  • Allow any blocked caller to ring through like normal with the Green Invite Button. Double Tap the Green Button to add VIP callers shown in Call History. Note: Caller ID Name and Number Service from your phone company is required for this model to work automatically.
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What carrier-level blocking can—and can’t—do

FCC materials describe provider blocking requirements for certain texts highly likely to be illegal, including messages that appear to come from numbers on a reasonable do-not-originate list. That is a limited provider-level rule, not a guarantee that every spam text will be stopped. Keep using phone and app controls and report suspicious messages as needed.

Rank #4
TelPal Call Blocker Box for Landline Phones with Caller ID Display, 4000 Number Capacity - to Block Hidden Numbers, Telemarketer Calls, Nuisance Calls, Hidden Numbers,Area Codes & Spam Calls
  • This is the latest version Telephone Call Blocker with hidden or unavailable call numbers can be blocked. And there is no fees to use it; Please keep the manual for future use.
  • Block up to 4000 individual phone numbers, including incoming and outgoing calls , prefixes and up to 10 digit area codes.
  • One-touch to Block: Locate a number and then press Block to add it to the blacklist.Better set the call blocker in series ( one end of it connected to your phone and another end to the PSTN telephone line); Though it can also be set up parallel, but not compatible with some phone systems.
  • Permanent storage of the numbers in the blacklist even power is off or telephone line is plugged out.
  • Battery free: It is line powered, no need battery. And it works with almost all single line telephones. If you find some numbers are blocked but you never mean to, then press Block and check your blacklist, then delete those numbers which like area codes or prefix numbers.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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