Scam phone number lookup:
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Most active robocallers
in the past hour

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Most active robocallers
in the past 24 hours


(800) 955-6600


(877) 647-8552


(908) 829-0335


(877) 255-5923


(847) 426-8085


(202) 918-4068

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Frequently asked questions

What is a reverse phone lookup? plus

A reverse phone number lookup is a tool that allows you to identify unknown callers simply by searching their phone number. With this feature, you can determine who’s behind any annoying or unwanted phone call.

Robokiller’s scam phone number lookup tool is built on a database of millions of phone numbers and is updated in real-time so you stay protected from emerging scams.

How can I check if a phone number is spam? plus

When you receive a call from an unknown number, you can enter it into a reverse phone lookup tool to find out who’s calling, whether it’s a telemarketer, scammer, or just an unknown caller. Robokiller’s reverse phone number lookup takes things a step further by providing phone number reputation information as well as transcripts and recordings of known scams.

Can you report scam numbers? plus

There are multiple ways to report a scam call. Notably, you can report it to the Federal Trade Commission (FTC), which keeps a database of known scam numbers. To do so, visit the FTC website and fill out a complaint form.

If you’re a Robokiller user, you can report scam numbers in the app.
Here’s how:

  1. Find the spam call you want to report and swipe on it to reveal the "Report" button
  2. Tap "Report" and select the reason why you’re reporting the call. You can choose from options such as "Spam," "Telemarketer," or "Scam"
  3. If you wish to provide additional information about the call, tap the "Add Details" button
  4. Tap "Submit" to report the call to Robokiller

We’ll use the information you submit to identify and block similar calls in the future.

How can I spot a phone scam? plus

Phone scams can be tricky to identify, as scammers use deceptive tactics to make their calls seem legitimate. However, there are certain signs that generally indicate a phone scam. A call might be a scam if:

  1. It’s unsolicited and from an unknown number
  2. The caller uses pressuring or threatening language
  3. The caller requests personal information such as your Social Security or bank account number
  4. The caller requests payment, such as via a prepaid gift card
  5. The caller behaves unprofessionally or becomes defensive when questioned about their reason for calling

If you suspect you’re being targeted by a phone scam, hang up and report the call to the FTC. Then download Robokiller to prevent suspicious calls from reaching your phone moving forward.

How can I block spam phone numbers? plus

You can block spam phone numbers on your iPhone or Android one by one. However, a more effective way to block spam phone numbers is by downloading Robokiller. Our app uses robust data and predictive analytics to identify scams and intercept them before they cause harm.

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You’re one step away from a spam-free phone
(and a little poetic justice, thanks to Answer Bots).