How to Stop Receiving Junk Calls Guide

Understanding Why You Receive Junk Calls

Junk calls have become a widespread problem affecting millions of people. According to the Federal Communications Commission (FCC), Americans received approximately 3.8 billion robocalls in 2023 alone. These unwanted calls come from various sources, and understanding where they originate helps explain why you might be receiving them.

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Junk calls typically fall into several categories. Telemarketing calls promote products or services, often from legitimate companies that purchase call lists. Robocalls use automated systems to dial large numbers of people with pre-recorded messages. Scam calls attempt to trick people into sharing personal information or sending money. Then there are abandoned calls—calls that connect but disconnect automatically when you answer, often used by call centers to test whether a number is active.

Your phone number may have been sold to telemarketers through data brokers, collected from online forms you filled out, obtained from warranty cards, or purchased when you signed up for services. Once a number enters the junk call pipeline, it often gets sold and shared multiple times. Scammers also use random number generators to dial large batches of numbers hoping to reach someone.

The FCC reports that caller ID spoofing—where scammers display fake numbers on your phone—has made the problem worse. Many people unknowingly answer calls because the number appears to be local or from a known company. Scammers often spoof numbers that match your own area code or exchange to increase the likelihood you'll answer.

Practical takeaway: Understanding that junk calls result from your number being sold, shared, or randomly targeted helps you realize this is not a personal failure on your part. The volume of these calls reflects a systemic problem, not something you caused.

How the National Do Not Call Registry Works

The National Do Not Call Registry is a free service managed by the FCC and Federal Trade Commission (FTC) that allows people to opt out of telemarketing calls. Established in 2003, the registry has registered over 275 million phone numbers. While not a complete solution, it does reduce calls from legitimate telemarketers who are legally required to check the list.

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To register your phone number, you can visit donotcall.gov or call 1-888-382-1222 from the phone you want to register. The process takes less than two minutes. Registration is permanent and does not expire, even if you change phone plans or providers. You can register both landline and mobile phone numbers.

It's important to understand what the National Do Not Call Registry does and does not do. Legitimate telemarketers must check the registry before making calls and cannot call numbers listed there. However, the registry has exceptions. Political organizations, charities, surveys, and companies with which you have an existing business relationship can still call. Additionally, the registry does not stop scam calls or robocalls from illegal operations, since scammers ignore the law anyway.

After you register, you should not expect calls to stop immediately. Telemarketers have up to 31 days to update their calling lists. You may also notice calls continuing from companies you do business with or recent calls you made. These are permitted under the rules. If you receive calls from telemarketers after 31 days have passed since registration, you can file a complaint with the FTC at donotcall.gov or by calling the registry hotline.

Practical takeaway: Register your number at donotcall.gov as a foundational step. While this won't eliminate junk calls entirely, it does reduce legitimate telemarketing calls and gives you a way to report violations.

Blocking Tools and Features Available on Your Phone

Modern smartphones offer built-in features to block unwanted calls without requiring separate apps or services. Understanding these tools allows you to take control of incoming calls directly from your device.

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On iPhones, the Silence Unknown Callers feature (available on iOS 13 and later) automatically sends calls from numbers not in your contacts, recent calls, or mail to voicemail. To enable this, go to Settings, then Phone, then Silence Unknown Callers, and toggle it on. This feature works well if you primarily want to hear from people you know. A downside is that legitimate callers you don't know—like doctors' offices or delivery services—will go to voicemail.

Android devices have similar features. Google Phone (the native calling app on many Android phones) includes a Call Screen feature that lets you see a transcript of voicemails and block calls from unknown numbers. To use it, open the Phone app, go to Settings, then Call Screen, and select "Block unknown callers." Samsung phones have a separate Spam Protection feature in the Phone settings that blocks calls from known spam numbers and unknown callers.

Beyond built-in features, many phone carriers offer free or paid call-blocking services. AT&T Call Protect, Verizon Call Filter, T-Mobile Scam Shield, and US Cellular CallWave are carrier-specific tools that identify and block suspected spam calls. Some offer basic versions at no extra cost, with premium versions providing additional features like blocking spam text messages.

Third-party apps like TrueCaller, RoboKiller, and Nomorobo work on both iOS and Android. TrueCaller identifies spam calls based on a community database of millions of users reporting numbers. RoboKiller uses audio fingerprinting technology to identify and block robocalls. Nomorobo focuses specifically on blocking robocalls and can answer spam calls and hang up on them. Many of these apps offer free versions with limited features and paid premium versions.

Practical takeaway: Start with your phone's built-in blocking features, which require no download or subscription. If you receive heavy call volume, explore your carrier's tools next, then consider third-party apps if needed.

Steps to Take When You Receive a Junk Call

When you answer a junk call, your immediate actions matter. Knowing how to respond protects you and contributes information that helps stop future calls.

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First, do not confirm your identity or provide personal information. Scammers sometimes use information you share to impersonate you, apply for credit, or commit identity theft. Even seemingly harmless confirmations—like saying "yes" to "Can you hear me?"—have been recorded by scammers and used to authorize charges. Hang up immediately if the caller asks for your Social Security number, bank account details, passwords, or payment information.

If it's a robocall, hang up without pressing any buttons. Pressing 1 to "remove yourself from the list" often does the opposite—it confirms your number is active and leads to more calls. Pressing a number may also incur charges or trigger additional scam attempts. Simply disconnecting is the best response.

For calls you believe are scams, report them. The FTC collects reports at reportfraud.ftc.gov, which helps law enforcement identify fraud patterns. The FCC accepts complaints at fcc.gov/complaints. If it's a call from someone impersonating a government agency or bank, report it to that agency directly. The Treasury Department's Financial Crimes Enforcement Network (FinCEN) investigates financial fraud.

For legitimate telemarketing calls that should not have reached you (because you registered with the Do Not Call Registry), file a complaint with the FTC. Document the date, time, number, and company name if provided. The more reports filed against a number, the more likely regulators will take action.

Consider blocking the number after the call. Save the number to your contacts with a label like "Spam - Do Not Call" so you recognize it if they call again. However, be aware that scammers often use different numbers for each call, so blocking one number may not prevent future calls from the same operation.

Practical takeaway: Hang up immediately, never provide information, and report the call to the FTC or FCC. Each report contributes to building cases against repeat offenders.

Protecting Your Number from Future Junk Calls

Reducing the number of junk calls you receive requires limiting how many places have your phone number and how easily scammers can target you.

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Be selective about where you share your phone number online. When filling out web forms, look for checkboxes asking permission to contact you. Leave these unchecked unless you have a specific reason to receive calls