June 20, 2024
Learn how to block unwanted No Caller ID calls and protect your privacy. Explore effective methods and creative ways to stop any intrusion. Discover the significance of reporting suspicious numbers and how to avoid unwanted solicitation.


Have you ever received a call from a number that displays “No Caller ID” or “Unknown Caller” and wondered who it could be? These types of calls have become increasingly common, and for some, quite annoying. Not knowing who is calling can be stressful and lead to unwanted solicitations and scams. The good news is that you can block No Caller ID calls and protect your privacy. In this article, we will provide you with effective methods to do so.

Why do you receive No Caller ID calls?

There are a variety of reasons why you might receive No Caller ID calls. These can range from innocent missed calls from friends or family who have blocked their caller ID for privacy reasons, to spam calls from unknown numbers or scammers who want to steal your personal information. Identifying these types of calls can be challenging, but being able to identify spam and scam calls is critical to protecting your personal safety.

6 Effective Methods to Block No Caller ID and Protect Your Privacy

There are several ways to prevent No Caller ID calls from ringing on your device:

Blocking No Caller ID calls on Android and iOS devices

Both Android and iOS have an option to block unknown or No Caller ID numbers from ringing on your phone. On iOS, navigate to “Settings” > “Phone” > “Silence Unknown Callers” and toggle on the feature. On Android, go to “Settings” > “Sound and Vibration” > “Do Not Disturb” > “Exceptions” and then select “Calls from” and add your contacts who can reach you despite the Do Not Disturb setting being on. This will ensure that only known numbers are allowed through.

Using third-party apps to block No Caller ID calls

Several third-party apps like Truecaller for Android or Hiya for iPhone provide call identification and blocking services. These apps collect data from other users and databases to identify potential scam and spam numbers. Once identified, these apps block the call from even ringing on your device.

Call filtering options on landline phones

If your No Caller ID calls are primarily on your landline phone, you can use call filtering options. Most phone service providers have call blocking services you can set up. This service can be accessed via dialling a specific code on your phone or through an online account.

Employing the ‘Do not disturb’ feature for unknown callers

Use the “Do not disturb” feature by activating it in your device to not accept calls from unknown callers. This option is useful since it sends calls from unknown numbers straight to voicemail or block lists.

How to block No Caller ID from carriers

You can directly contact your service provider where you can request to block No Caller ID calls on your device. Not all carriers offer this service, so be sure to check for the options available for your specific provider and device.

The Ultimate Guide to Blocking No Caller ID on Your Phone

Here’s a step-by-step guide to help you block No Caller ID calls on iPhone and Android devices:

Step One: Identify the source

The first step to blocking No Caller ID calls is to identify the source of the calls. Check if the calls are coming from a phone number or a contact that you do not recognize. Syscalls can be an indication if a call is spam.

Step Two: Enable silence for unknown callers

On your iPhone, navigate to “Settings” > “Phone” and scroll to silence unknown callers. Toggle the switch to enable it. For Android, go to “Settings” > “Sound and Vibration” > “Do Not Disturb” and toggle the switch to “On.”

Step Three: Download call blocking apps

You can download call blocking apps like Truecaller or Hiya to help block spam, telemarketing, and other fraudulent calls. These apps are easy to install, and you can select the appropriate settings for the frequencies of the spam calls you see.

Step Four: Block unknown numbers

On iPhone, a user may save a number as a contact to block them using the ‘i’ button then ‘block this caller’. You can also do this by searching the phone logs for the unknown number and then clicking on the ‘i’ button. On Android, go to your ‘Recents’, tap on the phone number you wish to block then go to the ‘details’ and click on ‘block number.’

Step Five: Report or send spam calls to Voicemail

If you continue to receive unwanted calls from unknown sources, send them to voicemail or report them as spam to block the number in the future. In reporting spam calls, tap “Report” to report the caller’s number and help improve these blocking apps’ services.

How to Block Calls from No Caller ID and Unknown Numbers

How to activate ‘Silence Unknown Callers’ on iPhone

You can activate the ‘Silence Unknown Callers’ feature on an iPhone by opening ‘Settings’ > ‘Phone’ > ‘Silence Unknown Callers’. Enable this feature.

Use third-party apps to block calls from unknown numbers

There are several apps that you can download to help you block calls from unknown numbers. Some of the most popular apps include Truecaller, RoboKiller and Hiya which allow you to block and identify numbers that are spam and scam calls.

Call blocking options on Android phones

On Android phones, you can use the ‘Call blocking numbers’ feature to block numbers that appear with the unknown or No Caller ID Tags. Simply go to “Settings” > “Blocking Numbers” to select and block numbers. You can also activate the ‘Silence Unknown Callers’ feature.

Top 5 Ways to Block Anonymous Calls and Stop Unwanted Solicitation

Call blocking options offered by carriers

Major phone carriers offer various tools to avoid unwanted solicitations. Using your carrier’s services may give you access to advanced blocking services and call filtering options.

Using blocking codes

You can also use blocking codes to help prevent unknown callers from getting through to you. These numbers differ depending on the carrier you use. For example, adding “*77#” will block all anonymous calls from ringing on your device.

The National Do Not Call Registry

By registering on The National Do Not Call Registry, you can add your phone number to the list of numbers that telemarketers are prohibited from calling. Your number will remain on the list until you choose to remove it.

How to report No Caller ID calls if they persist

If you continuously receive No Caller ID calls despite taking measures to prevent them, it is essential to report such calls to the relevant authorities. The FCC & FTC could take action on these numbers, and it may help stop potential scams.

Say Goodbye to No Caller ID – 7 Foolproof Techniques to Block Unwanted Calls

How to block calls from specific numbers

If you are getting repeated unwanted calls from the same number, go to the phone app and scroll to that specific number. Press and hold that number, and a few options will emerge such as the ‘block’ option.

Activating call screening and rejection on Android

You can choose the “Screen call” option on Pixel or Android phones to help stop receiving calls from unknown numbers. This option allows you to accept or reject incoming calls.

How to use features like “Send calls directly to voicemail”

If you have enabled DND mode on your device, go to ‘Settings’ > ‘Do not disturb & privacy’ > ‘Do not Disturb’. In this tab, you can modify your DND settings, and then choose to silence calls and send them directly to voicemail or place them on the blocklist.

No More Annoying No Caller ID Calls with These Simple Solutions

How Spam monitoring on Android devices can be effective

Spam protection on Android devices is quite effective at blocking unwanted calls. You can enable a feature that automatically labels them as spam calls and blocks them. You are also allowed to report such calls on Spam Protection settings.

Different methods on how to block calls on iOS devices

Blocking numbers on an iPhone is effective. Long press on the number you want to block, and select “Block caller.” The number will be added to your blocked list, and you will not receive calls from that number again.

Other privacy settings to protect your phone number

To reduce the frequency of unwanted calls and protect your phone number, you can also adjust privacy settings. For example, you can remove your phone number from public directories or block your caller ID if you need to call someone who you do not know.

5 Creative Ways to Block No Caller ID and Enjoy Peaceful Phone Time
5 Creative Ways to Block No Caller ID and Enjoy Peaceful Phone Time

5 Creative Ways to Block No Caller ID and Enjoy Peaceful Phone Time

There are several creative ways to block No Caller ID calls:

Exploring creative ways to block No Caller ID calls like using a virtual private number or a disposable phone number

If you do not want to reveal your phone number, you can use a disposable phone number. These services let you create a new, temporary phone number that you can use strictly for calls and then dispose of once you are done.

How to avoid providing phone numbers on websites that may end up selling number details

When prompted on websites or pop-up notifications that ask for phone numbers, using temporary numbers on such platforms can save you unnecessary spam calls in the long run.


No Caller ID calls can be annoying and a potential danger to your privacy. We have provided you with several effective methods to block them and other unwanted calls successfully. By following our tips, you can enjoy peaceful phone time without being interrupted by unwanted calls. Remember to report suspicious No Caller ID calls to the relevant authorities to combat potential scams.

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