How to Stop Spam Calls in 2026
By Nathan Cole, fraud analystUPDATED 06/26Why You Are Getting So Many Spam Calls
Spam calls usually mean your number is on a list that has been sold, leaked, or scraped. Once it is out there, automated dialers cycle through it. The calls fall into a few buckets: legitimate telemarketers, gray-area lead generators, and outright scammers spoofing fake caller IDs.
The good news for 2026 is that the phone system finally fights back. A standard called STIR/SHAKEN lets carriers digitally sign legitimate calls and flag ones with faked caller ID. That is why your screen now says "Scam Likely" or "Spam Risk" on some calls. It is not perfect, scammers still get through, but it is the backbone of the free tools below. You do not need to understand the tech. You just need to turn on the features that use it.
One thing worth saying plainly: no single setting stops everything. The fix is layering several free tools so each one catches what the others miss. If a number already slipped through and you want to know who it was, see who called me from this number or check whether this number is a scam before you do anything else.
Step 1: Register on the National Do Not Call Registry
This is free, it takes two minutes, and it is the first thing to do. Go to donotcall.gov or call 1-888-382-1222 from the phone you want to protect. Your number stays on the list permanently. You never have to renew it.
Be realistic about what it does. The registry stops legitimate telemarketers, the companies that actually follow the law. It does not stop scammers, who already ignore every rule there is. So think of it as clearing out the legal clutter so the genuinely bad calls stand out. After 31 days on the list, any sales call you still get from a real company is breaking the law, and that is something you can report.
Step 2: Turn On Your Carrier's Free Scam Blocking
Every major US carrier offers free scam-call blocking built on STIR/SHAKEN. Most people have never switched it on. You should, today. The free tier is enough for the vast majority of people. Paid carrier upgrades exist, but they rarely add much over the free version plus the steps below.
| Carrier | Free Tool | How to Turn It On |
|---|---|---|
| Verizon | Call Filter | Download the Call Filter app or enable it in My Verizon settings |
| AT&T | ActiveArmor | Install the AT&T ActiveArmor app and turn on spam blocking |
| T-Mobile / Metro | Scam Shield | Dial #662# to block, or install the Scam Shield app for more control |
Inside each app, set it to automatically block calls flagged as high-risk scams. You can usually keep "suspected spam" on a warning label rather than a full block, so you do not miss a real call that got mislabeled. Five minutes here removes a large share of the worst calls.
Step 3: Use Your Phone's Built-In Silencing
Your phone already has a powerful filter sitting unused. This is the single most effective free step for a lot of people.
On iPhone: Open Settings, scroll to Apps, tap Phone, then turn on Silence Unknown Callers. Any number not in your contacts, recent outgoing calls, or Siri suggestions goes straight to voicemail without ringing. You will see it in your recents and can call back anyone real. The trade-off is that a legitimate caller you have never saved (a delivery driver, a new doctor's office) also gets silenced, so check voicemail and recents now and then.
On Android: Open the Phone app, tap the three-dot menu, go to Settings, then Caller ID & spam, and turn on Filter spam calls (or "See caller and spam ID"). On Samsung and Pixel phones the wording differs slightly, but the option is there. This uses Google's spam database to silence or block flagged calls automatically.
Step 4: Add a Call-Blocking App (Optional)
If the steps above still leave gaps, a dedicated blocking app adds another layer. Apps like Truecaller, Hiya, RoboKiller, and Nomorobo maintain large community-reported databases and can screen calls before they reach you. Many have a free tier that covers the basics.
A word of caution, because it fits the spirit of this site: some of these apps want broad access to your contacts and call history, and some upsell a paid subscription. Read what you are agreeing to. For most people, the Do Not Call registry plus carrier blocking plus built-in silencing already does 90 percent of the job, and an app is only worth it if you are still getting hammered. You do not need to spend money to get most of the benefit.
Step 5: Never Engage, Always Report
This is the habit that protects you long-term. When a spam or robocall gets through:
- Do not press any button, even "press 9 to be removed." Pressing a key tells the system a real person answered, and your number gets dialed more, not less.
- Do not talk or say "yes." Just hang up. Scammers record "yes" answers and use them, and any interaction confirms the line is live.
- Block the number in your call log so that exact number cannot ring you again. Scammers rotate numbers, so this helps but does not fully solve it. For the step-by-step, see how to block spam calls.
- Report it. File scam calls at reportfraud.ftc.gov and illegal telemarketing or robocalls at the FCC. Reports feed the databases that power the free tools above, so reporting actually helps everyone, including you.
If you are not sure whether the call was a scam or a real business, look it up before you call back. Our guide on whether this number is a scam walks through the quick free checks.
What Actually Works: The Honest Bottom Line
There is no magic switch that ends spam calls forever, and anyone selling you one is exaggerating. What works is stacking the free layers: registry, carrier blocking, built-in silencing, good habits. Done together, they take most people from constant interruptions to a handful a week.
| Step | Cost | Effort | How Much It Helps |
|---|---|---|---|
| Do Not Call Registry | Free | 2 minutes | Stops legal telemarketers only |
| Carrier scam blocking | Free | 5 minutes | High, blocks flagged scams |
| iPhone / Android silencing | Free | 2 minutes | Very high, silences all unknowns |
| Call-blocking app | Free tier or paid | 10 minutes | Extra layer, optional |
| Never engage + report | Free | Ongoing habit | Prevents future calls |
Give it a week or two after you set everything up. The volume drops steadily as the scam databases catch up to the dialers targeting you.
Frequently asked questions
Does the Do Not Call Registry actually stop spam calls?
It stops legitimate telemarketers who follow the law, but not scammers, who ignore it entirely. Registering is still worth doing because it clears out the legal sales calls and gives you grounds to report any real company that calls you after 31 days. Pair it with carrier blocking and phone silencing for the calls the registry cannot touch.
Should I turn on Silence Unknown Callers on my iPhone?
For most people, yes. It sends every number not in your contacts straight to voicemail without ringing, which kills the vast majority of spam. The downside is that a real caller you have not saved also gets silenced, so check your recents and voicemail occasionally. If you regularly get important calls from new numbers, use carrier blocking and a spam app instead so legitimate unknowns still ring through.
What is STIR/SHAKEN in plain terms?
It is a system that lets carriers digitally sign legitimate calls and flag ones with faked caller ID. When your phone shows "Scam Likely" or "Spam Risk," that label comes from STIR/SHAKEN data. You do not configure it yourself. It works behind the scenes to power the free carrier and phone blocking features you turn on.
Why should I never press a key during a robocall?
Pressing any key, including "press 9 to be removed," confirms to the automated system that a real person answered a live line. That makes you a more valuable target, and your number gets dialed more, not less. The safe move is to hang up immediately without speaking or pressing anything, then block and report the number.
Do I need to pay for a call-blocking app?
Usually not. The free National Do Not Call Registry, your carrier's free scam blocking, and your phone's built-in silencing already stop most spam at no cost. A paid app only makes sense if you are still getting flooded after setting all of that up. Even then, check the free tier first, and read what data the app wants before you subscribe.
How long until the spam calls actually drop off?
Plan on one to two weeks after you set everything up. The carrier and Google spam databases update continuously, so blocking improves as more people report the numbers targeting you. The Do Not Call Registry takes 31 days to give you legal grounds against telemarketers, but the carrier and phone-level blocking start working right away.
Former fraud investigator. Runs the same set of known numbers through every service to score real accuracy, and always shows the free way to ID a caller first. How we review →