How to Report a Scam Phone Number: A Complete Global Guide

Every year, phone scams cost consumers tens of billions of dollars worldwide. Robocalls, fake IRS agents, delivery-notification texts, tech-support fraud, and romance scams all begin with a single phone number reaching out to an unsuspecting victim. The good news: reporting that number to the right authority is fast, free, and genuinely useful. Regulators aggregate reports to identify patterns, fine carriers that allow the traffic, and take down scam operations.

This guide explains how to report a scam number step by step, which agencies to contact based on your country, how to gather the right evidence, and what to do after reporting to protect your accounts and personal data.

What Counts as a Scam Phone Number?

A scam phone number is any number used to defraud, deceive, or manipulate a person into giving up money, credentials, or personal information. This includes both voice calls and SMS/text messages, and it covers spoofed numbers (where the caller ID is faked to look local or legitimate).

Common categories include:

• Robocalls — automated messages about car warranties, insurance, or debt relief.
• Impersonation scams — callers claiming to be from tax authorities, banks, police, or tech companies.
• Smishing — text messages with fake delivery notifications, bank alerts, or shortened links to phishing pages.
• One-ring (Wangiri) scams — calls that hang up quickly to trick you into calling premium numbers back.
• Investment and romance scams — long-form social engineering to extract money over weeks or months.

Even if you didn't lose money, reporting is worthwhile. Regulators use aggregated data to build cases against scam operations.

Before You Report: Gather Evidence

The more detail you provide, the more useful the report. Take a minute to collect the following before filing.

1. The full phone number, including country code if visible.
2. Date and time of the call or message.
3. What was said or written — a short summary, or better, a screenshot of the SMS.
4. Any links, email addresses, or names the scammer used.
5. Any money lost, including method (wire, gift card, crypto, bank transfer).
6. How you were contacted — cold call, callback after a missed call, response to an ad, etc.

If the scam involved a suspicious link, do not click it. Instead, copy the URL as text so you can include it in the report. Investigators need the exact address to trace the phishing infrastructure.

How to Report a Scam Number in the United States

US consumers have several agencies to contact, and it's fine (often recommended) to report to more than one.

1. Federal Trade Commission (FTC)

The FTC is the primary consumer-protection agency. File at ReportFraud.ftc.gov. Reports feed into the Consumer Sentinel Network, used by over 2,800 law enforcement agencies.

2. Federal Communications Commission (FCC)

For unwanted robocalls and spoofed caller IDs, file at consumercomplaints.fcc.gov. The FCC uses these reports to enforce the Telephone Consumer Protection Act and STIR/SHAKEN caller-ID authentication rules.

3. Do Not Call Registry

If a telemarketer keeps calling despite your number being on the registry, report it at donotcall.gov.

4. Your Phone Carrier

Forward spam texts to 7726 (which spells SPAM). This works on AT&T, Verizon, T-Mobile, and most major US carriers, and it feeds into industry-wide blocklists.

5. State Attorney General

Many state AG offices maintain their own fraud hotlines and pursue local scams the federal agencies won't touch.

How to Report a Scam Number in the UK

The UK has one of the most user-friendly reporting systems in the world.

• Suspicious texts: forward the message free of charge to 7726.
• Suspicious calls: report to Action Fraud at actionfraud.police.uk or call 0300 123 2040.
• Nuisance calls and marketing: report to the Information Commissioner's Office (ICO) at ico.org.uk.
• Ofcom collects data on silent and abandoned calls at ofcom.org.uk.

In Scotland, report fraud to Police Scotland via 101 in addition to Action Fraud.

How to Report a Scam Number in the EU

Each EU member state has its own consumer-protection and telecoms regulator, but the process is broadly similar.

• Germany: Bundesnetzagentur (bundesnetzagentur.de) handles telecoms complaints.
• France: report to 33700 for SMS spam, or to signal-arnaques.com and the DGCCRF.
• Netherlands: fraudehelpdesk.nl.
• Spain: report to the Guardia Civil's Grupo de Delitos Telemáticos or via the OSI (osi.es).
• Italy: Polizia Postale at commissariatodips.it.

Cross-border scams can also be reported to eConsumer.gov, an international portal jointly run by consumer agencies from more than 65 countries.

How to Report a Scam Number in Canada

Canadians should report to the Canadian Anti-Fraud Centre (CAFC) at antifraudcentre.ca or 1-888-495-8501. The CAFC works with the RCMP and provincial police to build cases.

Also report to:

• CRTC (crtc.gc.ca) for violations of the Unsolicited Telecommunications Rules.
• Your carrier — Bell, Rogers, and Telus all accept spam text forwarding to 7726.

How to Report a Scam Number in Australia

Australia's central reporting hub is Scamwatch, run by the ACCC at scamwatch.gov.au. For cybercrime specifically, use ReportCyber at cyber.gov.au. Forward scam SMS to 7726, or report to the ACMA (acma.gov.au) for Do Not Call Register breaches.

Global Reporting Agencies at a Glance

Country / Region	Primary Reporting Body	Website / Number
United States	FTC / FCC	ReportFraud.ftc.gov, forward SMS to 7726
United Kingdom	Action Fraud	actionfraud.police.uk, forward SMS to 7726
Canada	Canadian Anti-Fraud Centre	antifraudcentre.ca
Australia	Scamwatch (ACCC)	scamwatch.gov.au
Germany	Bundesnetzagentur	bundesnetzagentur.de
France	33700 / DGCCRF	Forward SMS to 33700
India	Chakshu / DoT	sancharsaathi.gov.in
New Zealand	CERT NZ	cert.govt.nz
Singapore	ScamShield	scamshield.gov.sg
Cross-border	eConsumer.gov	econsumer.gov

How to Report a Scam Text Message

Scam texts ("smishing") are now the most common form of phone fraud in many countries. Reporting them takes about ten seconds.

1. Do not click any link in the message.
2. Do not reply, even with STOP — this confirms your number is active.
3. Copy the message (long-press on iOS or Android).
4. Forward it to 7726 (US, UK, Canada, Australia, and most English-speaking markets).
5. Delete the message, then block the sender in your phone's messaging app.

If the text contained a shortened URL, be extra cautious — legitimate shorteners can be abused by scammers. Reputable services like Lunyb actively scan and remove malicious links, but you should still avoid clicking anything from an unknown sender. For more on how to spot trustworthy link services, see our 2026 buyer's guide to URL shorteners.

How to Block Scam Numbers on Your Phone

Reporting is only half the battle. Blocking prevents that specific number from bothering you again, and modern phones make it easy.

On iPhone

1. Open the Phone app, tap Recents.
2. Tap the info (i) icon next to the number.
3. Scroll down and tap Block this Caller.
4. Enable Silence Unknown Callers under Settings → Phone for broader protection.

On Android

1. Open the Phone app, tap Recents.
2. Long-press the number and choose Block / report spam.
3. Enable Google's caller ID and spam protection under Settings → Caller ID & spam.

Carrier-Level Blocking

Most major carriers offer free or low-cost spam-blocking apps: AT&T ActiveArmor, Verizon Call Filter, T-Mobile Scam Shield, EE Call Protect, and similar services elsewhere. These block calls before they reach your phone.

What to Do If You Lost Money to a Scam

If the scam succeeded, act quickly — every hour matters.

1. Contact your bank or card issuer immediately and request a chargeback or wire recall.
2. Change passwords on any account you mentioned during the call, starting with email and banking.
3. Enable two-factor authentication everywhere it's offered.
4. Place a fraud alert or credit freeze with the major credit bureaus (Equifax, Experian, TransUnion in North America; equivalents elsewhere).
5. File a police report — you may need it for insurance or bank claims.
6. Report to the agencies listed above so the case is on record.

If you sent cryptocurrency, contact the exchange right away. Some can freeze funds if the receiving wallet hasn't already withdrawn.

How to Protect Yourself from Future Scam Calls

A few habits dramatically reduce your exposure to phone scams:

• Never confirm personal info to an inbound caller. Hang up and call the organization back on a number you find independently.
• Register with your national Do Not Call list where available.
• Use a secondary number (Google Voice, a burner SIM, or a privacy-focused service) when signing up for online services or listings.
• Be skeptical of urgency — real institutions don't demand immediate payment in gift cards or crypto.
• Verify shortened links before clicking. Services like Lunyb provide preview and safety features so recipients can see where a link leads before visiting.
• Keep software up to date, especially your phone's OS and messaging apps, which include improved spam filters with each release.

For more on evaluating link-safety tools, our honest review of Lunyb and our comparison of Rebrandly in 2026 both cover the safety features that separate trustworthy services from risky ones.

Frequently Asked Questions

Does reporting a scam number actually do anything?

Yes. Individual reports rarely trigger immediate action, but regulators use aggregated data to identify high-volume offenders, fine carriers that allow the traffic, and build criminal cases. In 2023 alone, the FTC's Consumer Sentinel Network processed over 5.4 million reports that fed into major enforcement actions.

Can I find out who owns a scam number?

Usually not, because most scam numbers are spoofed — the real caller is somewhere else entirely, often overseas. Reverse-lookup sites may show a carrier and general location, but the identity of the fraudster is almost always hidden. Leave the tracing to law enforcement.

Should I call the scam number back?

No. Calling back can confirm your number is active, trigger premium-rate charges (in Wangiri scams), or connect you directly to the scammer's script. If you missed a call from an unknown number and think it might be legitimate, look up the organization independently and call their published number.

What's the difference between reporting to the FTC and the FCC?

The FTC handles the fraud itself — money lost, deceptive practices, identity theft. The FCC handles the telecommunications violation — unlawful robocalls, caller-ID spoofing, Do Not Call breaches. For a scam call, reporting to both is appropriate and takes only a few minutes.

Will blocking a scam number stop the calls?

It stops that specific number, but scammers rotate through thousands of spoofed numbers, so a new one may appear tomorrow. Combining blocking with carrier-level spam filtering, "Silence Unknown Callers" settings, and reporting is far more effective than blocking alone.

Final Thoughts

Reporting a scam number is one of the simplest civic actions you can take online. It costs nothing, takes just a few minutes, and directly contributes to the datasets regulators use to shut down fraud networks. Combine reporting with strong blocking settings, cautious link habits, and quick action if money is lost, and you'll dramatically reduce the impact of phone scams on your life and the lives of others.

Save this guide, bookmark your country's reporting portal, and next time an unknown number tries to scam you, take the extra minute to file a report. It matters more than you think.