How to Report Harassing Phone Calls

With the rise of smartphones and online databases, unwanted phone calls have become more frequent and disruptive. While many are just spam or sales pitches, others may involve scams, intimidation, or repeated harassment — and knowing how to respond is critical for your safety.

Pranks or Real Harassment - How to Tell the Difference?

In the past, prank calls were usually harmless jokes. Today, harassing calls are often more aggressive and can include:

• Threatening or obscene language
• Silent calls with breathing or background noise
• Repeated calls after telling them to stop
• Pressure to donate or send money
• Fake caller IDs pretending to be banks, police, IRS, etc.
• Intimidation tactics to reveal personal or financial information

If someone keeps calling after you’ve told them to stop — hang up immediately and do not engage. Engaging can encourage more calls. Report the incident right away to your phone carrier and the FTC.

How the National Do Not Call Registry Actually Works

The National Do Not Call Registry (donotcall.gov) is a federal database created by the FTC to reduce legitimate telemarketing calls, not scams. Once you register:

• Your registration never expires — no need to renew
• Telemarketers must stop calling you within 31 days
• The rule applies to sales and telemarketing calls only

Important — these calls are exempt and may still contact you:

• Political campaigns
• Surveys and research
• Charities and nonprofits
• Debt collectors and banks
• Business-to-business calls

Unfortunately, most scammers and robocallers ignore Do Not Call laws, and many are outside the U.S., making enforcement difficult. Still, being registered strengthens your case when filing complaints and helps block legitimate telemarketing.

Caller ID Apps and Blocking Tools That Can Help

Modern call-blocking apps make it easier to detect and silence harassing or spam calls before you even answer.

Popular options include:

• Nomorobo - auto-blocks known spam numbers
• Hiya - caller ID + fraud number detection
• RoboKiller - blocks and auto-responds to spammers with fake messages
• Truecaller - identifies both calls and spam texts
• YouMail - voicemail + robocall protection

Tip: Never answer unknown numbers - let voicemail filter them first.

Contact Your Phone Carrier (Many Already Offer Free Blocking)

Most major wireless carriers offer spam-blocking features for free or at low cost. Call customer support and request “harassing or spam call protection.”

Example options:

• Verizon Call Filter
• AT&T ActiveArmor
• T-Mobile Scam Shield

They can flag or automatically block calls before they reach you — and in cases of severe harassment, they may even escalate reports or help with number trace requests.

How to Block Harassing Numbers Manually on Your Phone

Both iPhone and Android allow you to manually block individual numbers within seconds — just open recent calls and choose Block.
However, if the harasser switches numbers frequently, manual blocking may get tiring — which is why apps and carrier-level filtering are more effective.

How to Report Harassing or Scam Calls

If you’re receiving repeated, threatening, or fraudulent calls, you should report them to:

• FTC — ftc.gov (or call 1-888-382-1222)
• Your phone carrier immediately
• Local law enforcement, especially if violent threats or stalking are involved

Be ready to provide:
✔ The phone number(s) calling you
✔ A description of what was said/done
✔ Dates and frequency of the calls

What can the police do about harassing phone calls?
If threats, stalking, blackmail, or extortion are involved, police can investigate, subpoena phone records, and press criminal charges if necessary.

How to Avoid Future Scam or Spam Calls

You can’t eliminate all unwanted calls — but you can dramatically reduce your exposure:

• Never answer calls from numbers you don’t recognize
• Use call-blocking apps or carrier spam protection
• Never share personal or financial info over the phone
• Immediately hang up if pressured, threatened, or asked, “Can you hear me?”
• Register your number on the National Do Not Call list
• Use voicemail as a filter — legit callers will leave a message

Being proactive is the best defense — scammers target fast responders, not cautious ones.