Key Takeaways

Scammers use spoofed numbers—often mimicking local or trusted sources—to trick people into answering and revealing sensitive information. It’s a common tactic used in robocalls, government impersonations, tech support scams, and more.
You can protect yourself by using anti-spoofing apps, asking contacts to block your number if spoofed, alerting your mobile carrier, filing FCC complaints, and, if necessary, changing your number.
Avoid answering unknown calls, never give out personal info to unverified callers, limit your online presence, and use tools like Truecaller or VPNs.
Businesses can also implement a branded caller ID to prevent misuse.
If you’re a victim of phone spoofing or related fraud, contact your bank or affected institutions, monitor your accounts, change passwords, and report the incident to the FCC or FTC. Acting quickly helps protect both you and others from ongoing scams.

You glance at your phone and see a familiar-looking number—maybe even your own area code. You pick up, only to hear a robotic voice pushing a scam or worse, someone pretending to be from your bank. It’s frustrating, confusing, and increasingly common.

Phone spoofing, where scammers disguise their caller ID to look like a trusted number, has surged in recent years. In fact, robocalls alone hit 52.8 billion in the U.S. in 2024, with many using spoofed numbers to trick people into answering.

Why do scammers use phone spoofing? Because it works. By making their calls appear legitimate, they increase the chances of stealing personal information or committing fraud.

In this article, we’ll explain what phone spoofing is, why it happens, and how you can protect yourself.

What is Phone Spoofing?

Phone spoofing is when a caller deliberately falsifies the information transmitted to your caller ID display to make it look like the call is coming from a trusted or local number. The goal is often to trick you into answering the call and, in many cases, to scam or defraud you.

This tactic misuses caller ID systems by disguising the real source of the call. Scammers do this to appear more credible, bypass call-blocking tools, or impersonate legitimate organizations such as banks, government agencies, or tech support.

Although the term is sometimes used interchangeably with caller ID spoofing, there’s a subtle difference: caller ID spoofing refers specifically to the manipulation of caller ID data, while phone spoofing broadly includes any deceptive use of a phone number, whether in calls, texts, or even voicemail.

How Phone Spoofing Works

At its core, phone spoofing works by manipulating the caller ID information that appears on your phone. Scammers use specialized spoofing software or VoIP (Voice over Internet Protocol) systems to make it seem like their calls are coming from someone else, often a trusted source.

Technically, spoofers exploit vulnerabilities in the way phone networks transmit caller ID data. In traditional phone systems, the SS7 (Signaling System No. 7) protocol handles call setup and routing, but it wasn’t designed with strong security in mind. This allows bad actors to send false caller ID information across networks without being immediately detected. With VoIP systems, it’s even easier; callers can input any number they want to display before making a call.

The goal of phone spoofing is always the same: to make you trust the caller. Once they gain your confidence, they may try to:

Steal sensitive information (like Social Security or credit card numbers)
Convince you to send money
Install malware on your device
Trick you into taking other harmful actions
H3: Common types
Phone spoofing scams rely on impersonation and creating a sense of urgency or fear to manipulate victims into acting without verifying the caller’s identity. The common types include:
- IRS/Government impersonation scams: Scammers pretend to be from the IRS or other government agencies, threatening legal action or fines to pressure victims into paying fake debts or providing personal information.
- Tech support scams: Fraudsters pose as tech support from well-known companies, claiming your device has a virus or issue. They manipulate victims into granting remote access or paying for unnecessary services.
- Bank or credit card fraud calls: Spoofers impersonate banks or credit card companies, warning of suspicious account activity to trick victims into revealing account numbers, PINs, or passwords.
- Family emergency impersonation: Scammers pretend to be a relative or close contact in urgent need of money, playing on emotions to get victims to wire funds quickly.
- Fake prize or lottery scams: Callers claim you’ve won a prize or lottery but require payment of fees or taxes upfront, manipulating victims into sending money or sharing financial details.

How to Stop Phone Spoofing

If your phone number is being spoofed, it’s important to take action quickly to protect your identity and prevent further misuse. While phone spoofing can be frustrating and confusing, there are anti-spoofing solutions you can follow to reduce the risk and limit the impact.

1. Use anti-spoofing apps

Anti-spoofing apps help protect your phone number from being faked by others. They verify if the person calling you is really who they say they are and can block fake calls using your number.

Some apps also let you use a separate phone number when making calls to keep your real number private and safe from theft or spam. This way, your identity stays protected while you stay connected.

2. Ask The Recipient To Block Your Number

If someone receives a spoofed call that appears to come from your number by mistake, politely ask them to block your number. Blocking makes it harder for spoofers to use your number again.

You can also leave a brief, polite voicemail explaining the situation and requesting that they block your number to prevent further confusion.

3. Contact your network carrier

To stop phone spoofing, first notify your phone carrier about the issue so they can help protect your number. Many carriers offer built-in spoofing protection tools, like spam filters and detailed call logs, to monitor and block suspicious calls.

For example, some carriers like AT&T include advanced spoofing protection and features like VoIP services and reverse number lookup in their paid plans. Using these tools can help keep your phone number secure and reduce unwanted calls.

4. File a Complaint with FCC

If you think your phone number has been spoofed, you can file a complaint with the FCC Consumer Complaint Center. The FCC handles phone and communication issues and can take action against those who use spoofing to trick or harm others. If the spoofing is done with harmful intent, the FCC can fine the offenders. Reporting the issue helps protect you and others from phone scams.

5. Change Your Phone Number

If spoofing of your phone number doesn’t stop after a short period, it may be time to change your number. Most spoofing is temporary, as scammers often move on quickly.

But if you keep getting complaints or suspicious activity linked to your number, changing it can be the safest option. It may take some effort, but it can help restore your privacy, stop the confusion, and give you peace of mind.

Stop Email Spoofing with PowerDMARC!

Start 15-day trial Book a demo

Top Tips to Prevent Phone Spoofing

Phone spoofing can lead to scams, identity theft, or unwanted calls. Here are some simple ways to protect yourself and your number:

Be cautious of unknown calls: Avoid answering calls from unknown or private numbers. Use apps like Truecaller to identify callers before picking up.
Watch for red flags during calls: Spoofers often sound urgent or aggressive. Hang up if the call feels pushy, strange, or includes static or odd noises.
Don’t share personal info over the phone: Never give out sensitive information unless you’re sure who you’re speaking to. If in doubt, hang up and call the company back using a trusted number.
Avoid online contests and surveys: These often collect personal data that can be misused. Only enter contests from trusted sources.
Limit what you share online: Reduce your exposure by adjusting privacy settings on social media and removing unnecessary personal info from public platforms.
Use a VPN: A virtual private network (VPN) can help protect your online activity and reduce the chance of your information being tracked or stolen.
Use branded caller ID for businesses: Implement branded calls that show your company name, logo, and a custom message. This builds trust, improves answer rates, and helps prevent spoofing of your business number.

Bottom Line

Phone spoofing is a growing threat that can lead to scams, identity theft, and unwanted stress. While you can’t always prevent your number from being spoofed, you can take steps to reduce your risk and protect your personal information.

Staying alert, using anti-spoofing tools, avoiding unknown calls, and keeping your personal data secure are key to staying safe. If you’re affected, act quickly—notify your carrier, monitor your accounts, and report the incident to the proper authorities.

Being proactive is the best defense. Stay informed, report suspicious activity, and consider using advanced protection services like PowerDMARC to secure your digital identity. Book a demo today!

Frequently Asked Questions

What happens if you answer a spoof call?

Answering a spoof call doesn’t compromise your phone, but scammers may try to trick you into giving personal information. It’s best to hang up and avoid engaging.

Can you tell if your phone is spoofed?

You may notice missed calls or messages from people saying you called them when you didn’t. This is a common sign your number is being spoofed.

Is it possible to track a spoofed number?

Spoofed numbers are often masked or rerouted through various systems, making them difficult to trace. However, authorities may be able to investigate with enough evidence.

About
Latest Posts

Ahona Rudra

Domain & Email Security Expert at PowerDMARC

Ahona is the Marketing Manager at PowerDMARC, with 5+ years of experience in writing about cybersecurity topics, specializing in domain and email security. Ahona holds a post-graduation degree in Journalism and Communications, solidifying her career in the security sector since 2019.

What Is Phone Spoofing? Common Scams and Solutions