Americans got over 50 billion robocalls last year. Fifty billion. If your phone buzzes with ‘Potential Spam’ five times before lunch, you’re not unlucky — you’re normal. And the infuriating part is that half the advice out there (‘just don’t answer!’) doesn’t actually stop them from calling.
Here’s what I’ve learned after years of testing every anti-spam tool available: you can’t eliminate spam calls completely, but you can cut them by 90% or more. It takes about 20 minutes of setup across three layers — your carrier, your phone, and your own habits. Here’s exactly what to do.
Layer 1: Turn On Your Carrier’s Free Spam Blocking
Every major US carrier now offers free spam filtering — most people just never turn it on. AT&T ActiveArmor, T-Mobile Scam Shield, and Verizon Call Filter all identify and block suspected spam automatically. Download your carrier’s app or enable it in your account settings; it takes two minutes.
These carrier tools work at the network level, which means they catch calls before your phone even rings. They’re the single most effective step — carrier-level blocking stops the obvious robocalls that make up the bulk of the volume.
All three carriers also support STIR/SHAKEN, the FCC-mandated caller ID authentication that flags spoofed numbers. When your phone shows ‘Spam Likely’ or ‘Potential Spam,’ that’s this system working. Don’t ignore those labels.
Layer 2: Use Your Phone’s Built-In Defenses
On iPhone: Settings > Phone > Silence Unknown Callers. This sends any number not in your contacts straight to voicemail. It’s aggressive — you’ll miss calls from new numbers — but it’s devastatingly effective. Legitimate callers leave voicemails; robocalls don’t.
On Android (Pixel/Samsung): open the Phone app, go to Settings > Caller ID & Spam, and enable ‘Filter spam calls.’ Pixels go further with Call Screen — Google Assistant answers unknown callers for you and shows you a transcript. It’s my favorite Android feature, full stop.
Third-party apps like RoboKiller and Hiya add another layer with crowd-sourced spam databases and fun ‘answer bots’ that waste telemarketers’ time. They work, but they require sharing your contacts/call data, and the good features cost $3-$5/month. Try the free carrier + built-in options first.
Layer 3: Stop Feeding the Machine
Register at donotcall.gov. Yes, the Do Not Call Registry still exists, and yes, you should be on it. It won’t stop scammers (criminals don’t check registries), but it cuts legitimate telemarketing and gives you legal standing to sue violators — $500 to $1,500 per illegal call.
Never, ever press a number to ‘opt out’ or talk to a representative on a robocall. That’s not an unsubscribe button — it’s a ‘this number is live, call it more’ button. Hang up immediately.
Don’t give your real number to every website, contest, and store clerk. Use a free Google Voice number for signups, deliveries, and anything sketchy. Your primary number should be need-to-know.
And if a caller’s already harassing you, report it: forward spam texts to 7726 (SPAM), and file robocall complaints at the FCC’s consumer complaint center. Reports feed the enforcement databases that actually get illegal operations shut down.
The Nuclear Option (and When to Use It)
If spam calls persist after all three layers, your number may be circulating on lead lists. Options: ask your carrier for a number change (usually free, but you have to update everyone), or go full ‘Silence Unknown Callers’ + voicemail screening and accept that new callers leave messages.
One more honest note: data brokers sell your number constantly. Removing yourself from the big ones (Whitepages, Spokeo, BeenVerified) reduces how easily scammers find fresh numbers. It’s whack-a-mole, but it helps.
Spam Texts: The Other Half of the Problem
Calls get the attention, but spam TEXTS are exploding faster — package delivery scams, ‘wrong number’ pig-butchering setups, fake bank alerts. The defenses differ slightly: NEVER click links in unexpected texts (go to the site/app directly), forward spam texts to 7726 (SPAM) — it feeds carrier blocking systems, and use your phone’s ‘Report Junk’ option (iPhone: tap Report Junk under unknown senders; Android: spam reporting in Messages).
The ‘wrong number’ text scam deserves special attention: a friendly stranger texts you, conversation develops, eventually they mention crypto investing. It’s an organized fraud scheme (pig butchering) that has stolen billions. The defense is simple: don’t engage with wrong-number texts, period. Delete and report. Real wrong numbers don’t want to be your friend.
Protecting Elderly Family Members
Seniors are disproportionately targeted — the FBI’s elder fraud reports show billions lost annually, much of it starting with a robocall. If you have elderly parents or grandparents: set up their phones with Silence Unknown Callers / spam filtering YOURSELF (don’t ask them to — do it on your next visit), add trusted numbers to contacts (our hacked-email guide covers the phishing side of the same scams), and have the explicit conversation: ‘No legitimate company, bank, or government agency will ever call demanding gift cards or wire transfers. Ever.’
Consider: a call-screening service, removing their number from data brokers, and registering them at donotcall.gov. And tell them it’s okay to just hang up — politeness is the scammers’ greatest weapon. Hanging up on a stranger is not rude; it’s smart.
Our guide to spotting hacked accounts covers the email side of the same threat — scammers who call also phish.
Reporting Spam Calls: Does It Actually Help?
Yes — but slowly and collectively. Every report feeds the machine: forward spam texts to 7726 (SPAM), report calls at reportfraud.ftc.gov, and use your phone’s built-in reporting (iPhone’s ‘Report Junk,’ Android’s spam reporting). These reports train carrier STIR/SHAKEN authentication and third-party blocklists — your report plus millions of others is what makes the blocking work. What DOESN’T help: answering and asking to be removed (confirms your number is live), calling back (premium-number scams charge you), or engaging with ‘press 1 to opt out’ (it’s a live-number detector). Report silently, block automatically, and never engage. The system improves with every report filed — be part of the signal.
The Bottom Line
Do these three things today: enable your carrier’s spam filter, turn on Silence Unknown Callers (or Android’s spam filter), and register at donotcall.gov. That 20-minute setup eliminates the vast majority of spam calls for most people. The robocallers aren’t going away — but with these layers in place, you’ll barely notice they exist.