No Caller ID Number Calls: How to Find Out Who Called?

It is understandable to feel apprehensive, anxious or annoyed about No Caller ID calls. Read this tutorial to see how you can deal with them:

It is rare to find someone who enjoys answering their phone when an unknown number has called. In fact, for many people, merely viewing an unknown number on their screens is enough to thrust their nervous systems into fight-or-flight mode.

It is possible that the thought of responding to a robocall or conversing with telemarketers may make you uneasy, or maybe you just want to avoid the potential hassle of doing so.

Regardless of the reason, there are different techniques to discover the caller’s identity and obtain their contact information.

Unknown Caller ID

No Caller ID Number Calls How to Find Out Who Called

This guide will walk you through the steps of identifying an unknown caller and finding their number. You can use special services synced with public databases by dialing special services, checking specific websites, or using the Caller ID app on your phone. By identifying your caller, you can keep strangers from taking up your precious time.

Market Trends: 8 out of 10 Americans do not receive a call from an unknown number.

call from an unknown number

Tips for Handling Unknown Callers

#1) Avoid Answering Any Questions

Even answering a question from a caller you don’t know can be dangerous. It makes you more likely to fall for voice phishing. When someone pulls this kind of scam, the person on the other end of the line records your voice every time you say “yes” to a question.

If they do it right, the scammers can use your voice recording to pretend to be a customer and authorize fraudulent charges.

You should be very careful while answering a call from a number you are not familiar with. For instance, if the person on the other line tells you to hit a button to stop receiving calls, you should ignore the request and hang up. Pressing the button could give your location information to scammers.

Instead, jot down the number of suspicious calls and make a report to the FCC (Federal Communications Commission). The authorities will be able to identify illicit callers with the use of a simple report.

For further protection against telemarketers, robocall blocking software is a viable option.

#2) Exercise Caution If Pressured to Provide Information

Scammers will do everything they can to get your personal information. One sign that you’re talking to a scammer is if you are being pressured to do something right away or keep the conversation private.

A second classic move is to pretend to be a real contact with information that makes sense. Some say they are from law enforcement or the government and want money or information about you. Others say they are calling from your bank and need your account details for security purposes.

It is important to make sure who you are talking to is who they say they are before you answer their questions. If you request proof or verification from a con artist, they will usually turn evasive. Try requesting a company contact number that you can reach out to ensure its legitimacy before actually calling it.

A genuine caller should also not get angry if you choose not to disclose personal information or decide to cease the conversation.

#3) Get Your Phone Number Registered

If you don’t like getting sales calls, you should add your phone number to the National Do Not Call Registry, which is run by the FTC (Federal Trade Commission). This program has been designed particularly for people who wish to avoid being contacted by telemarketing organizations.

If you have already gotten your number registered, it is likely that the calls you’re still getting that you don’t want are from scammers. In fact, this program will only stop real telemarketing companies and not scammers from contacting you.

But it is still a good way to protect your phone and stop people from calling you when they should not. Feel free to register your home phone number or your cell phone number.

#4) Never Disclose Personal Information

If you don’t know who you’re talking to and you didn’t start the conversation, never disclose any personal information over the phone. In fact, this is amongst the most fundamental IT security protocols. Giving out personal information makes you vulnerable to identity theft.

Your Personal Identifiable Information (PII) must always remain confidential and include:

  • Names (including full, maiden, and mother’s maiden names).
  • Personal identification numbers (including passport number, social security number, patient ID number, driver’s license number, financial account number, credit account number, and taxpayer ID number).
  • Address (including physical and email addresses).
  • Technology Asset Information (including Internet Protocol and Media Access Control).
  • Phone number.
  • Vehicle Title or ID number.

#5) Understand the Purpose of the Call before Providing any Information

It’s not always easy to spot a scam call. Even if you think you’re talking to a real customer service rep, you should still be careful.

Companies sometimes call their customers without being asked to, for good reasons. When you get these kinds of calls, it’s your job as a customer to make sure that the person on the other end of the line is who they say they are.

Don’t fall for deals that seem too good to be true. Instead, ask questions and obtain the right information, do your own research, and only make another call if the information you found is true. But if the person you’re talking to wants you to answer right away, it’s probably just a scam.

FAQs About No Caller IDs

Q #1) What does a NoCaller ID mean?

Answer: A No Caller ID call is just an ordinary phone call in which the caller’s identification has been removed on purpose. These are also known as blocked, hidden, masked, and unknown calls. If you receive a blocked call on an iPhone, the caller ID will read “No Caller ID”. Other phones, however, may display a slightly different message.

Q #2) How do you hide your Caller ID?

Answer: Using “*67” before a phone number is a typical approach to ensure that the recipient of your call does not see your caller ID. Callers often hide their numbers because they don’t want to be identified.

Q #3) Why do people hide their Caller IDs?

Answer: Moreover, telemarketers will resort to No Caller ID if they want to avoid being reported for illegal marketing activities. They believe they can avoid detection by the authorities since the targets of their prank calls won’t have access to caller ID or the means to return their call.

Scammers frequently use faked or banned numbers from trying to trick their victims into giving over sensitive information or money.

A common tactic for those who have been barred from calling someone (whether because of harassment, breakup, or illegal activities) is to phone them using a No Caller ID. Without a third-party Android or iOS app, the recipient has no means to ban the caller or expose who it is.

Q #4) Can you trace a No-Caller ID?

Answer: Yes, it is possible to trace a no-caller ID. You can do that by dialing special services connected to public databases, accessing certain websites, or installing caller ID applications.

Q #5) How to find out who called you on No-Caller ID on your iPhone?

Answer: When you don’t know who’s calling, dialing *69 is a great way to find out the caller’s identity. In the event that you miss a call from an unidentified number or one showing up as a No Caller ID, simply dial *69 to return the call.

In this way, you can find out who is behind the unknown number phoning you by tracing the number and, if it’s in a public database, the name and address associated with it. Even if the caller’s number is blocked, this method will reveal when they dialed your iPhone.

Note, however, that not all phone companies provide this feature, and those that do may be charged a premium.

Other than that, you can also use a number of third-party apps to reveal the identity behind a No Caller ID.

How to Block No Caller IDs

If you’d rather not answer calls from people you don’t know, this is the greatest option for you because you won’t have to deal with their concealed Caller IDs. The capability to block no Caller ID calls is standard on most modern mobile handsets.

Furthermore, you can block no Caller ID numbers on both IOS and Android, and the process is fairly simple.

Blocking Unwanted Calls on iPhone (iOS 13 and above)

Step #1: Just go to the home screen and tap “Settings”.

Step #2: Find the ‘Phone’ menu and select it.

Step #3: Find the ‘Silence Unknown Callers’ option and turn it on. 

Once you do this, your phone will automatically reject any calls that don’t come through with a Caller ID. Unless you alter the settings, they will remain blocked.

Blocking Unwanted Calls on Android

Step #1: Get out your phone’s dial pad.

Step #2: Choose the three vertical dots (you will find these on the middle/top right-hand side of your screen).

Step #3: Choose ‘Settings’.

Step #4: Choose ‘Blocked Numbers’.

Step #5: Turn on the ‘Block unknown callers’ option.

Once you do this, your phone will no longer let calls through from numbers that do not have Caller ID. 

How to Reveal a no Caller ID Number or an Unknown Caller

Method #1: Dial *57

In the event that you get a call from a number you don’t recognize, you should instantly implement this method. By quickly dialing *57 on your mobile phone, you can initiate a trace request to determine who just called you.

A confirmation tone or beep will be played if the caller ID trace was successful. Alternatively, depending on your cell service provider, you may hear an error beep if the Caller ID trace is unsuccessful.

When dialing *57, you’re connecting to the Malicious Caller Identification Service (MCIS). Every major US carrier, including Verizon, AT&T, and T-Mobile, offers this service for a fee. The cost of the service will be included in your regular billing cycle.

Method #2: Dial *69

If you’re familiar with hiding your number by dialing *67, you may already know what *69 does. *69 is pretty much the inverse of *67. If you’ve missed a call from an unknown number, and the number is in a public database, you can find out who it belongs to and where they live by phoning *69 shortly after the call.

This service can even be used for concealed or anonymous calls. You can find out not just the number but also the precise time that you received the call.

Using this information, you can determine whether or not the call was spam or scam attempt. If that is the case, it is best to avoid redialing the number. Even if you reach out to them and request to have your number removed from their list, they are unlikely to pay any heed. Instead, you can prevent further calls from that number by blocking it.

Keep in mind that not every phone company provides this feature and, depending on your phone plan, some may charge for it. Keep in mind that there may be some unexpected charges on your subsequent phone statement. The service is compatible with both landline and mobile phones but is only offered in the United States.

Method #3: Reach out to the Phone Company

If you receive a call from someone you don’t recognize, you can try contacting your phone company for assistance.

All of your outgoing and incoming calls will be recorded and made available to you, including the actual phone numbers of any unfamiliar callers. This may encourage you to take matters into your own hands, but if you need even more information, the phone provider can provide it.

You can even find the number’s owner and provider information if that is publicly available.

Telecoms can also offer this feature, which allows you to see who is calling without revealing your own number. Once this feature is activated, your phone will verify the legitimacy of each incoming call by asking the called party for identification information.

If someone calls you from an unknown or blocked number, the Anonymous Caller ID service shall prompt them to identify themselves before connecting. The Caller ID information will then be displayed on your phone’s screen.

For an additional monthly charge, phone companies can even help you fend off robocalls. However, this service is still pretty new and, therefore, may not be entirely reliable.

Method #4: Install a Caller ID Application

Numerous apps designed specifically as phone number trackers are available for use on a wide range of mobile platforms.

When an unknown number calls, these apps may search for the caller’s information in a database and show you their name, phone number, and address. If you want, you can then block and even report automated callers, telemarketers, and scammers.

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List of Best Caller ID Apps

Popular app to find unknown caller id:

  • TrapCall
  • Reverse Lookup
  • Number Finder
  • BeenVerified
  • Spokeo
  • Truecaller

Comparison Table to Find Unknown Caller ID

Best Caller ID AppBest ForOperating SystemPrice Free TrialsRating
TrapCallUnmasking ‘no Caller ID’ callsiOS$4.95/month7-day free trial4.2/5
Reverse LookupTo find a caller’s information using their phone numberiOSFree-           4.7/5
Number FinderFinding information about an unknown numberiOSFree (does contain in-app purchases)-4.7/5
BeenVerifiedConducting background checksiOS and Android$17.48 to $26.89 per month, depending on the chosen plan7-day free trial, plus a free-of-cost background check every thirty days3.8/5
SpokeoFinding specific information about unknown numbersAndroidFree-4.1/5
Truecaller For identifying ‘no Caller ID’ numbersiOS and AndroidFree-4.5/5

Detailed review:

#1) TrapCall

Best for:


TrapCall is amongst the best unmasking tools available. You may stop worrying about who is calling you in secret because you will no longer receive “No Caller ID” or “Restricted” calls. There’s a unique technology within that can reveal who’s calling you.

By merely declining the call the first time around, you re-receive the call with all details unmasked within the next few seconds. The only issue is, you need to first decline the call to unmask the caller’s details.

Currently, TrapCall is only available to US residents.

How to use TrapCall:

Step #1: Press the decline button twice when the phone is unlocked, or (for iPhone users) press the lock button present on the right side of the phone, twice. The call was muted after the first press, and it was declined after the second.

Step #2: If the phone is locked, you need to press the phone’s lock button twice. Once again, pressing once will end the call and pressing twice will reject it.

Information you can obtain by using TrapCall:

  • The identity of No Caller ID numbers.
  • Whether a number is associated with scam calls or robocalls.


  • Customized block list
  • Ability to record incoming calls
  • Privacy lock

Verdict: TrapCall allows you to unmask any ‘no Caller ID’ calls. The downside is that you need to decline the call the first time around in order to receive the details.

Website: TrapCall

#2) Reverse Lookup

Best for:

  • Find information about unknown phone numbers.
  • Reporting potential scammers and suspicious numbers.
  • Blocking callers based on prefixes.

Reverse Lookup

This app is intended for individual usage by people who wish to learn the identities of mysterious callers. It’s easy to use and understand the app’s UI and functionality. You will have to manually locate the numbers using the app. Reverse Lookup allows you to block numbers you would rather not be contacted by.

How to use Reverse Lookup:

Step #1: Enter a valid phone number.

Step #2: Look that number up.

Reverse Lookup will then return the most reliable and recent data associated with that number.

Information you can obtain using Reverse Lookup:

  • Information about unknown callers.
  • Data on businesses and scammers.


  • Ability to find phone number information.
  • Report potential scammers.
  • Block callers based on prefixes.

Verdict: Reverse Lookup allows you to use a mysterious phone number to unmask key information about the number and the caller.

Website: Reverse Lookup

#3) Number Finder

Best for:

  • Learn the identity of the caller from an unidentified number that has appeared on your caller ID.
  • Determining if a number is responsible for scam calls.
  • Sophisticated reverse lookup functionality.
  • Learning about numbers associated with any unwanted or telemarketing calls.


Number Finder allows you to find out everything you need to know about any phone number, whether it was a missed call, an old contact, or an unknown sender of a text message.

How to use NumberFinder:

Step #1: Create an account on the app.

Step #2: Enter the number you want to know about. You can either enter the number manually or paste it from your address book.

NumberFinder will return the information associated with that number, including the caller’s name, gender, age, and current location and address.

Information you can obtain by using NumberFinder:

  • Personal information
  • Location and address.


  • Uncover information about an unknown number.
  • Reverse lookup.

Verdict: NumberFinder allows you to learn the identity of any unidentified numbers. It can even let you know if the unknown number is related to any telemarketing or scam calls.

Website: Number Finder

#4) BeenVerified

Best for:

  • Conducting background searches.


The BeenVerified app allows users to conduct reverse phone lookups and access public record data. The mere possession of a name, address, phone number, or email address is sufficient to gain access to a wealth of information, including profiles of friends and family members, bankruptcy records, photographs, and even criminal records.

If you have received a call from a strange or suspicious number, BeenVerified’s reverse phone search allows you to easily search for and locate the owner of the number. In addition, you can also unveil other essential information, such as the number’s location and spam score.

Information you can obtain by using BeenVerified:

  • Personal information.
  • Property information.
  • Email and social media information.
  • Vehicle information.


  • People Search
  • Property Search
  • Vehicle Search
  • Email Search

Verdict: BeenVerified lets you access public data in order to run background checks. Through this app, you can obtain an individual’s personal details, contact details, social media details, and even information regarding financial and criminal backgrounds.

Website: BeenVerified

#5) Spokeo

Best for:

  • Conducting background searches.

Spokeo for finding No Caller ID

Spokeo is a background check company that offers a number of search routes to help you find the specific data you’re looking for. Many independent Spokeo reviews attest that with just a few pieces of information, consumers are able to locate the people they were looking for.

Information you can obtain by using Spokeo:

  • Contact info (such as names, phone numbers, and email addresses).
  • Personal details (such as educational backgrounds, birth dates, marital statuses, and interests).
  • Financial data (such as investments, estimated income, properties owned).
  • Location history (previous and current location, neighbors).
  • Family background (birth records, marriage records, family members).
  • Social media accounts (usernames, apps, gaming accounts, dating sites).
  • Criminal records.


  • Specific information, including contact and personal info, is associated with a phone number.

Verdict: Like BeenVerified, Spokeo is another background check company that allows you to find specific information about an individual, including their personal details, contact details, family background, and criminal records.

Website: Spokeo

#6) Truecaller

Best for:

  • Unveiling the identity of No Caller ID callers.

Truecaller to find No Caller ID

Over 330 million users rely on Truecaller to reliably identify incoming calls and SMS from anywhere across the globe. You get to decide which numbers enter your blacklist and whether or not you want to block text messages, phone calls, or both using this free software.

The urgent messages function allows you to send and receive urgent messages with the help of animated emoticons and short notes.

Information you can obtain by using Truecaller:

  • Caller name
  • Caller location


  • Caller ID
  • Spam blocking
  • Smart SMS
  • Different color codes for priority, normal, business, and spam calls.

Verdict: Truecaller lets you identify incoming calls and SMS from anywhere across the globe. It allows you to block text messages and phone calls.

Website: Truecaller


Understandably, receiving a call from an unknown number can make you nervous and uneasy. Thankfully, there are a number of ways to either block these no Caller ID calls or find out the identity of the unknown Caller ID. If you were wondering how to find a no Caller ID, we hope that this guide helped allay your confusion, concerns, and questions.

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Research Process:

  • Time taken to research this article: 3-4 hours.
  • Total apps researched: 30
  • Total apps shortlisted: 6