How to Make Anonymous Calls from any Phone?

Last Updated: June 15, 2018
Unknown Phone Calls

Do you want to call someone by keeping your number private? You can make anonymous calls from your Phone with some simple tweaks. All smartphones are coming with the feature to Block Caller ID. Once you change your phone to block caller ID, the receiver phone will display as Unknown Number or Anonymous Call while you call them. This is a good precaution while you dealing with an unknown person or calling back to a nonfamiliar number. All these tweaks may vary depends on your country and phone service providers.

This article describes different methods for making free calls from for iOS, Android, Windows or Nokia based phones. All these mobile platforms have an option to block your Caller ID. That means you can set permanently to mask your number while you make calls.

Editor’s Note: While you make calls, there is a workaround to change your display number or use a virtual number. Just in case, if you do not want to use your phone to make phone calls, you can use your computer to make anonymous calls without revealing your phone number.

Add Prefix *67

This method allows blocking id for any type of service provider in the US. It does not depend on the mobile platform or the service provider. This Prefix number will work with Android, iPhone and Windows phones. You can block your caller ID by simply adding ‘*67’ prefix following with 10 digit number. You can try this for toll-free numbers that start with 1. In that case, you must dial country (‘1’ for the US) following *67. The call format will be like below, “xxx” represent the phone number you want to dial.

US Anonymous Dial Format: *67-XXX-XXX-XXXX
UK Anonymous Dial Format: 141-XXX-XXX-XXXX
Canada Anonymous Dial Format: #31#-XXX-XXX-XXXX

In Canada, it is recommended to use #31# before dialing the phone number to make anonymous calls from HSPA/UMTS networks. For other network users, dial the same *67 prefix before making the call to hide your number. However, we recommend testing with your phone to a known number before making the anonymous call.

Unknown Call Prefix

The Prefix method above described to make unknown calls is applicable for individual calls. But if you want to permanently turn off your caller ID for all calls, there is a separate setting for both iPhone and Android OS.

Related: How to make the Anonymous call from the website.

Turn Off Caller ID on iPhone

iPhone is coming with an inbuilt feature to mask your number when you make any outgoing calls. You can tun on this feature by following these steps.

Launch iOS Settings >  Phone >  Show My Caller ID > Slide to OFF

This setting will mask your number for all of the outgoing calls. Even though this is an OS setting, this may slightly change depends on your country and service provider.

iOS Hide Caller IDHowever, you can try the location specified in the screenshot to make sure these settings are available on your phone to mask phone number for outgoing numbers.

Turn Off Caller ID on Android

Android phone is also offering an option to hide your number when you call to any number. The setting may be slightly different on different Android phones. However, we provide a generic solution that matches most of the Android phones. Please refer Android setting here to set your number unknown for outgoing calls.

Select Phone Settings >  Call Settings > Additional Call Settings > Caller ID.

Turn Off Caller ID on Android Oreo (Pixel 2)

Also, we checked this feature on Android Oreo with Google Pixel. To Turn off Caller ID on Google Pixel with Android Oreo, Tap on Phone icon.

Android Phone icon > Settings >  Calls >  Additional Settings > Caller ID > Turn Off

Turn Off Provide Caller ID on Windows Phone

Windows: Windows mobile platform coming with the same feature like iOS and Android to mask the outgoing number. You can refer here for more details.

From the Home screen > select Start > Scroll to and select Settings > Select Phone > Scroll to and select Caller ID > At Provide my caller ID to > scroll left or right to No One or Only my contacts > Select Done > Select Done again > Select Done again.

Editor’s Note: The above workouts may not be effective in your country. It depends on rules and regulations in each country and the restrictions by your phone service provider.

Google Hangout to Make Anonymous Calls

In US and Canada, you can use Google Hangout service to dial any US or Canada number for free. You can download the Google Hangout from PlayStore for Android users or iTunes for iPhone users. All the calls from Google hangout are going to display as an Unknown number. Please make sure you are not verified your number with Google Hangout Setting. If you already verified your number with Google Hangout, then this verified number may display when you initiate the call.

Hangout Anonymous Call

Editor’s Note: Make sure to use Google Hangout service, not Google Voice. Google Voice will display the registered Google Voice number if you set to display the number of Google Voice Settings. If you don’t have any problem with revealing Google Voice Number, then see the instructions here for to Use Google Voice as A Free Second Phone Number for Android?

Download Google Hangout: PlayStore | iTunes

Use Disposable Phone Number

Disposable Phone Number apps are an alternative solution for hiding your number for a period of time and trash the number. Its one-time payment solution, and use for a special purpose and throw it away. Please use any one of these a disposable phone number for a short time to make calls. Once you complete the use of this number, you can stop the service of this number and burn the number. This will let you keep your primary number private.

Apps to Hide Primary Number

There are paid apps from iTunes store to get a second Phone number apps for iPhone. These numbers can also use to keep your privacy. This ideal for you where you don’t reveal our original number for security or privacy reasons. These secondary phone number can be used for a while for any business transactions or other service and after a period, you can scarp this number. Based on the OS and phone you use, you can select the apps to generate a secondary phone number to make anonymous calls.

Secondary Phone Number Apps: For iPhone | For Android

This is a simple and essential trick while you dealing with an unknown person or calling back to a nonfamiliar number. Just for your security, you can hide your number with these solutions described here and still make unknown calls with the method specified here.


  1. Dedicated apps are cool but webapps are better. There is software called Ghoscall that works good. However both users need the software installed on each endpoint/machine. Roboshout is good because it works on iOS, Android, and Desktop browsers.
    There’s a few apps that are ok but only if you pay for them… anonym call is one… I heard it wasn’t so great though.

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