Stop Unwanted Robocalls: Free Step-by-Step Guide to Block & Report Phone Scams
Figures & blocking procedures last verified against FCC & FTC regulations in July 2026.
Quick Answer
To stop robocalls: NEVER ANSWER UNKNOWN CALLS (let them go to voicemail). Turn on "Silence Unknown Callers" on iPhone or "Caller ID & Spam" on Android. Register all phone numbers at donotcall.gov. If you answer by mistake and hear a bot, HANG UP IMMEDIATELY — pressing buttons ("press 1 to remove") only confirms your phone number is active.
Action Checklist
What kind of phone are you using?
What is Caller ID Spoofing?
The number that appears on your screen can be anything the caller programs it to show. Even if it looks like your bank, your doctor, or the IRS, it may not be them.
3 Rules to Remember:
- Don't press 1 to opt out — it confirms your number is active.
- Don't call back unknown numbers.
- If it's important, they'll leave a message or send a letter.
Illegal robocalls use automated dialers and neighbor spoofing to bombard older adults with fake Medicare Advantage offers, computer virus warnings, and interest rate reductions. Answering these calls marks your number as "active" in spam databases, leading to even more calls. Use this interactive tool to get exact blocking instructions for your specific phone model and carrier.
- Seniors receiving multiple fake local calls daily who want to silence unknown numbers without missing important contact calls.
- Landline owners seeking hardware call blockers or free carrier blocking tools (AT&T, Verizon, Spectrum).
- Anyone evaluating suspicious messages or calls via our Scam Message & Call Decoder.
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How to Configure Call Blocking on Your Phone
- Step 1 — Enable built-in phone spam filters. On iPhone: Go to Settings > Phone > Silence Unknown Callers (ON). On Android: Open Phone app > Settings > Caller ID & Spam (ON).
- Step 2 — Register with the FTC Do Not Call Registry. Go to donotcall.gov or call 1-888-382-1222 from the phone you wish to register.
- Step 3 — Download your carrier's free call blocking app. Verizon (Call Filter), AT&T (ActiveArmor), T-Mobile (Scam Shield). All three offer free basic blocking tiers.
- Step 4 — Report persistent spoofers to the FCC. File a quick report at consumercomplaints.fcc.gov. If money was stolen, check our Gift Card & Wire Transfer Scam Checklist.
💡 Pro Tip
If an unknown caller leaves a voicemail claiming to be your bank, doctor, or Social Security, never call back the number left in the voicemail. Always call the official phone number printed on the back of your insurance card, bank card, or monthly statement.
Robocall & Telecommunications Terms Defined
| Term / Abbreviation | Full Name | Plain English Definition |
|---|---|---|
| STIR/SHAKEN | Secure Telephony Identity Revisited | A mandatory FCC framework that authenticates caller ID numbers across phone networks to stop fake number spoofing. |
| Neighbor Spoofing | Local Number Falsification | Scammers generating fake caller ID numbers matching your local area code and 3-digit prefix to trick you into answering. |
| Do Not Call Registry | National Do Not Call Database | The official FTC database that legally prohibits legitimate telemarketers from calling registered numbers. |
| Call Screen | Automated Call Interception | Smartphone technology (e.g. Google Pixel) that uses an AI assistant to answer and transcribe unknown callers live before your phone rings. |
| FCC | Federal Communications Commission | The federal agency regulating telecommunications, robocalls, and enforcing STIR/SHAKEN compliance. |
Real-Life Robocall Protection Examples
Harold was getting up to 15 spam calls a day on his iPhone, interrupting his meals and sleep. He was afraid to miss calls from his doctor.
| Detail / Action | Value / Outcome |
|---|---|
| Device Used | iPhone 13 |
| Action Taken | Added doctor's number to Contacts & enabled "Silence Unknown Callers" |
| Result | ✅ Unknown numbers go straight to Voicemail silently |
| Daily Interruption Drop | From 15 calls/day down to ZERO ring interruptions |
Key: Make sure all your doctors, pharmacies, and family members are saved in your iPhone Contacts app before enabling "Silence Unknown Callers."
Dorothy has a traditional landline and does not own a smartphone. She was receiving constant automated Medicare Advantage sales calls.
| Detail / Action | Value / Outcome |
|---|---|
| Phone Service | Traditional Landline (Spectrum) |
| Hardware Solution | Plugged CPR Call Blocker device into phone jack |
| Action Taken | Registered line at donotcall.gov |
| Outcome | ✅ Blocked over 400 pre-programmed scam numbers |
Key: Ask your landline provider about free "Nomorobo" or "Anonymous Call Rejection" features included in your monthly bill.
Scenarios based on official FCC and FTC telecommunications safety data. Report illegal robocalls to consumercomplaints.fcc.gov.
Common Robocall Mistakes — And How to Avoid Them
Pressing Buttons to "Unsubscribe" or "Speak to an Operator"
Automated robocalls often say "press 1 to speak to an agent or press 2 to be removed from our list." Pressing any button confirms your line is active and live, causing them to sell your number to more spammers.
The fix is to hang up immediately without pressing any keys. Verify caller legitimacy using our Scam Message & Call Decoder.
Engaging in Conversation With Spammers
Talking to robocallers gives them an opportunity to record your voice for AI voice cloning schemes or trick you into saying "Yes," which can be edited into a fake authorization.
The fix is to hang up the moment you realize it is a sales bot or unknown voice. Learn about voice risks with our AI Voice Clone Verification Tool.
Official Sources & Reporting Portals
| Source Name | What We Used It For | Direct Link |
|---|---|---|
| Federal Communications Commission (FCC) | Official consumer complaint portal, STIR/SHAKEN rules, and caller ID spoofing guide | FCC Consumer Complaint Center |
| National Do Not Call Registry (FTC) | Official phone registration portal for telemarketing call prohibition | National Do Not Call Registry |
Seniors Audit is an independent educational platform. We are not affiliated with the FCC or FTC.
Frequently Asked Questions About Robocalls
Why do I keep getting calls from numbers that look local?
This is called "neighbor spoofing." Scammers use technology to disguise their real phone number and display one with your area code. They know you are much more likely to answer a call that appears to be from a neighbor or local business.
Does the Do Not Call Registry stop all robocalls?
No. The National Do Not Call Registry only stops sales calls from legitimate companies that follow the law. Scammers and criminals ignore the registry. However, being registered helps because it means any unexpected sales call you receive is likely a scam.
How do I block calls on an iPhone?
You can block unknown callers by going to Settings > Phone > Silence Unknown Callers and turning it on. This sends calls from numbers not in your contacts straight to voicemail. You can also block specific numbers from your recent calls list.
How do I block calls on an Android phone?
Open the Phone app, tap the three-dot menu, select Settings, and then Blocked Numbers. Turn on "Block calls from unidentified callers." Some Android phones, like Google Pixels, also have built-in Call Screen features to filter out spam.
What is caller ID spoofing and is it illegal?
Caller ID spoofing is when a caller falsifies the information transmitted to your caller ID display to disguise their identity. It is illegal under the Truth in Caller ID Act if it is done with the intent to defraud, cause harm, or wrongly obtain anything of value.
How do I file a complaint with the FCC about robocalls?
You can file a complaint online at consumercomplaints.fcc.gov or by calling 1-888-CALL-FCC. Provide the exact date, time, and the number that appeared on your caller ID. This data helps the FCC track down and fine illegal robocall operations.
What is STIR/SHAKEN and does it protect me?
STIR/SHAKEN is a set of technical standards that phone companies use to verify that a caller ID is accurate before connecting the call. It helps block illegally spoofed calls on modern networks, meaning fewer fake local numbers reach your phone.
Can I stop robocalls on a landline phone?
Yes, but options depend on your phone service provider. Contact them to ask about free call-blocking services (like Anonymous Call Rejection). You can also purchase a separate call-blocking device that plugs into your landline phone.
Other Free Scam Prevention Tools
About This Educational Estimate: This tool is for educational purposes only. Seniors Audit uses the official formulas published by Federal Communications Commission (FCC), but results are estimates based on the information you entered. Rules, rates, and eligibility thresholds change annually and vary by individual circumstance.
Always verify your specific result directly with Federal Communications Commission (FCC) at 1-888-225-5322 or at consumercomplaints.fcc.gov before making enrollment, coverage, or financial decisions.
If you have Medicare questions, a free SHIP counselor in your state can review your specific situation at no cost — find yours at shiphelp.org.
Seniors Audit is independent and not affiliated with any government agency or insurance company. We are not affiliated with, endorsed by, or connected to any government agency, insurance company, or financial services firm. All calculations use the official formulas and current figures published by the agencies listed above. We do not receive payment for referrals, leads, or any action taken by visitors to this site. Last reviewed: July 2026.