Free Tool

Free Phone Number Spam Check

Enter any US phone number to see where its area code is and whether consumers have filed unwanted-call complaints about it with the FCC. It’s free and needs no sign-up. It runs in your browser against the FCC’s public complaint data.

Is my number flagged as spam? This robocall number lookup is a good first step. It checks public FCC complaint data and gives you our Health Score, a simple number reputation estimate. It does not show carrier labels like “Spam Likely”.

10 digits. You can include +1, spaces, dashes or brackets.

How this spam number check works

The checker does three things, all in your browser:

  1. Validates the number. It strips formatting, removes a leading +1 and checks the North American Numbering Plan rules: 10 digits, an area code and exchange that start with 2–9 and aren’t N11 service codes, and an area code that’s actually in service.
  2. Finds the area code location. It looks up the state or region and time zone in a table built from the NANPA area code database. That’s where the area code was assigned. Ported and VoIP numbers can be used anywhere.
  3. Searches FCC complaints. It queries the FCC’s public Consumer Complaints Data – Unwanted Calls dataset for complaints that list the number as the caller ID or as the advertiser’s phone number. It shows the total and the most recent complaints with their call type.

The number you enter goes from your browser straight to the FCC’s open data service. We don’t store it.

Phone number spam score vs. carrier labels

Our Health Score is built only from public FCC complaints. Carriers use their own private analytics to decide on labels, and we can’t see that data. A good score is a good sign, not proof that no carrier labels the number.

How to check if my number shows Spam Likely

Place test calls to a few phones on different carriers and look at the screen. If a label shows up, the steps below can improve your number reputation over time.

How to keep your outbound caller IDs healthy

If you run outbound campaigns, these steps help your calls get answered:

  • Register your numbers for free at FreeCallerRegistry.com, which shares them with the major call-analytics providers. Our Free Caller Registry guide walks through it.
  • Call with A-level STIR/SHAKEN attestation. Present numbers your provider has assigned to you, so your calls are signed with full attestation. Read Does STIR/SHAKEN Stop Spam Labels?
  • Use multiple numbers responsibly. Separate numbers for each campaign, client or region are fine. Keep every one registered and answerable on callback. Never cycle numbers to dodge spam labels or complaints. That practice is a red flag for analytics providers, and it doesn’t fix the calling behavior behind the label.
  • Respect consent and calling rules. Scrub against the National Do Not Call Registry, honor opt-outs, keep to legal calling hours, and pace your dialer so you don’t leave abandoned calls.
  • Check regularly. Re-check your caller IDs here from time to time, and watch your answer rates for sudden drops.

Frequently asked questions

Does this tell me if my number shows as “Spam Likely”?
No. “Spam Likely” and similar labels come from private call-analytics systems that phone carriers use, and that data isn’t public. This tool checks public FCC consumer complaints, which are one signal of how people react to calls from a number. To check a label, call a few test phones on different carriers and register your numbers at FreeCallerRegistry.com.
Where does the complaint data come from?
From the FCC’s Consumer Complaints Data – Unwanted Calls dataset on opendata.fcc.gov. Consumers file these complaints themselves, and the FCC doesn’t verify them. Many complaints leave the caller ID blank, and some list a spoofed number. This version doesn’t include FTC Do Not Call reports.
How is the Health Score calculated?
Every number starts at 100. Each FCC complaint that lists the number takes points off, and recent complaints count more: 8 points for the last 30 days, 4 points for 31 to 90 days ago, 2 points for 91 to 365 days ago, and half a point for anything older. Complaints about prerecorded or autodialed calls (and older complaints the FCC filed as robocalls or telemarketing) count 1.5 times. A burst of 5 or more complaints within any 7 days in the last 90 days takes off 10 more points. The score is rounded and kept between 1 and 100: 80 to 100 is Healthy, 50 to 79 is Watch, and 1 to 49 is At risk. It only reflects public FCC complaints, so it isn’t the label carriers show.
My number has FCC complaints. What should I do?
Look at the dates and call types to see what triggered them. Check consent and Do Not Call scrubbing for that campaign, and fix abandoned-call rates if your dialer is aggressive. Make sure the number is registered at FreeCallerRegistry.com and your calls carry A-level STIR/SHAKEN attestation. If you never called those people, someone may be spoofing your number. You can tell the FCC that in a complaint of your own.
No complaints were found. Is my number clean?
Not necessarily. No FCC complaints is a good sign, but carriers can still label a number based on calling patterns, such as high volume, short calls or low answer rates. Keep your numbers registered and your calling practices clean, and re-check from time to time.
Why is my number showing “Spam Likely”?
Carriers and their analytics partners add that label based on signals they don’t make public. Common triggers are high call volume, many short calls, low answer rates and consumer complaints. Register your numbers at FreeCallerRegistry.com, call with A-level STIR/SHAKEN attestation and follow consent rules. This tool shows only the FCC complaint part.
What is a phone number spam score?
It’s a quick estimate of a number’s reputation. Our Health Score runs from 1 to 100 and uses only public FCC complaints. Carriers keep their own private scores, which we can’t see. Treat ours as one signal, not the carrier’s verdict.

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