Useful Tips

How to block calls from unknown and hidden numbers on Android


This article will discuss a very urgent problem - how to block calls from all unfamiliar numbers on various phones with Andro>

Today we will talk about how to block calls and SMS from unfamiliar numbers on phones of popular manufacturers: Xiaomi, Huawei, Samsung, iPhone. Thus, you will not be able to get through with numbers that are not included in the contact list.

On this page there is an important update from 2019 with regards to new features for blocking unfamiliar subscribers on iPhone with iOS 13.

The era of voice spam

Nowadays, the function of blocking calls from unfamiliar numbers is becoming more and more popular, because every day the number of spam calls increases exponentially. Among my surroundings, more and more people complain that they are constantly called by some strange people (and sometimes robots) from unfamiliar numbers, distracted from business, and very often they also wake up in the early hours of the weekend, which cannot but annoy .

In about half the cases when answering a call from an unfamiliar number, a person hears silence or the call is immediately dropped. I want to clarify on my own - if when answering such a call you hear silence or music, then most likely they will call you from some call center. They know that in half the cases, people simply do not pick up the phone from an unfamiliar number or drop such obscure calls. Therefore, spammers start dialing several numbers at once and there may not be enough operators. Yes, these are such savagery. This is how the call centers of banks and telecom operators work, which ring up people to offer them a card or participate in some kind of action. Whether or not to call these subscribers spammers is up to you. Personally, I reason simply: if the call is inappropriate and causes negative emotions in me - this is spam and I mercilessly block such calls.

Particularly Dangerous Calls

By the way, do not forget that frank scammers can also call from unfamiliar numbers “with music”. Nowadays, renting an IP-telephony gateway is not very expensive. Therefore, scammers can even call you from a local number (that is, with your area code) in order to arouse trust, or either offer a loan on extremely favorable terms, or persuade you to transfer a certain amount as an advance payment in order to buy cool goods at crazy discount. Also, I think everyone has heard of this type of fraud as an “investigator’s call” when you are told “your son had an accident where a person died. If you want to resolve the issue - transfer money ... "

All this I tell to the fact that calls from unfamiliar numbers are often distracting, annoying, and sometimes entail extremely unpleasant consequences. If you are a modern sane person, you can easily distinguish a normal call from a "divorce." However, children or elderly family members who have personal mobile phones are best protected from such contacts. Let it be better when making calls from subscribers who are not in the contacts, their devices simply "silently drop" the call.

What is the difference between blocking calls from the Do Not Disturb mode in Android

As you probably know, Android has a built-in Do Not Disturb mode (in English “Do Not Disturb”, abbreviated “DND”). So the difference is that when calls are blocked, calls will be dropped, i.e. after the first beep, the caller will hear “busy”, and during the “Do Not Disturb” mode, the beeps will go off and your phone will simply not play the ringtone.

Yes, you say, “Well, what difference does it make for me, whether the phone will drown out the call or will it drop it?” But there is a difference. It consists at least in that an unwanted call will occupy the line until the caller hangs up or the agent disconnects the call (usually 1 minute). Then the unwanted subscriber can call back again and so an infinite number of times. At this time, your relatives or friends may not reach you. in fact the line will be busy. Well, one more difference: if the call is dropped, it is more likely that the caller will understand what is on the black list. And if there are beeps, they may think that you do not hear the call and can call you for a long time.

How to block calls and SMS from unfamiliar numbers

When we studied the issue of blocking calls and SMS from unfamiliar subscribers, it turned out that the smartphones of Chinese manufacturers - Xiaomi and Huawei - are the most powerful in this. They are “out of the box” have full functionality and allow you to flexibly configure the phone to cut unwanted calls and messages.

But the giants just let us down. For example, in Samsung Galaxy S9 smartphones and similar models, you cannot configure “hang up” for everyone except contacts. You have to use compromise solutions or purchase third-party call managers applications.

  1. Go to Settings> scroll to the section Applications > select System applications >Call settings >Antispam >Call blocking.
  2. Activate 2 functions: Block calls from strangers and Block calls from hidden numbers:

Now you can get through only those people whose numbers are entered in Contacts. Other calls will be blocked.

  1. Launch the dialer:
  2. Click the three dots icon at the bottom of the screen to the right.
  3. Select Blocked:
  4. Click Blocking Rules at the bottom of the screen:
  5. Select Call Blocking Rules:
  6. Enable option All unfamiliar numbers:

After activating this setting, calls from subscribers who are not included in the device’s phone book will be blocked (they will be sent a busy signal).

If there are no such settings in the phone (Samsung Galaxy, bare Android)

If you have a Samsung Galaxy or Google Pixel / Nexus, then you do not have such a function out of the box, like Xiaomi or Huawei. Therefore, you have two options:

  1. Use a third-party call manager. However, here it should be remembered that high-quality applications are often paid.
  2. Use the "do not disturb" mode built into Andro /> If suddenly it is not there, go to Settings> Sounds and vibration> Do Not Disturb and turn on the mode.
  3. Now you need to configure it. To do this, either long press on the tile in the curtain, or go to the mode settings, as described in the previous paragraph. Install:
  • Calls from = Only contacts.
  • Message from = Contacts only.

Call Blocking on iPhone

And finally - about blocking calls on an iPhone. There is the same Do Not Disturb mode, but in iOS 11 and 12 it just drops calls, and not just mutes the sound, as in a similar function in Android. Therefore, to block all incoming calls except contacts, you need to make the following settings:

  • Go to Settings.
  • Choose a mode Do not disturb:
  • Activate it with the switch at the very top.
  • Now find the parameter a little lower Call tolerance and install From all contacts or From the Chosen. This will indicate to the iPhone which group of subscribers will call. In our example, I chose that only people whom I brought in contacts reach me:

New way 2019: Block calls from unfamiliar numbers on iPhone on iOS 13

In iOS 13, the function of rejecting incoming calls from numbers that are not recorded in your contacts has appeared. In the new OS, this feature exists in parallel with the "black list" and if you activate it, iPhone will drop all calls from subscribers not included in the phone book in the same way. The difference from the “blocked contacts” function is that when you use muting of unfamiliar subscribers, you will receive notifications that the call has been blocked and it is not yet possible to turn off these notifications. So if your iPhone supports the new iOS, then you should like this method, because you don’t need to keep Do Not Disturb anymore, which mutes all notifications. By the way, iOS supports iPhone 6S and newer, including iPhone SE.

To block calls from unfamiliar numbers on iPhone with iOS 13, follow these steps:

  • Go to Settings iPhone
  • Scroll down the page to about the middle,
  • Select Phone.
  • Activate Mute unknown callers:

I would like to believe that in the future this function will be somehow renamed into something more serious and less funny (I first read “stunning unknown subscribers”).

I hope that from this detailed guide you remembered how to block incoming calls from unfamiliar phone numbers so that you wouldn’t get calls or text messages from subscribers you don’t need. Of course, I have no way to show a screenshot of the settings for each phone. Therefore, if you have constructive additions or refinements, write in the comments. Good luck

For Huawei (Honor)

Some of the most popular devices in our market (so the article will start with them). Their software already has built-in functions for solving a similar problem (which cannot but please 😊).

How it's done:

  1. first you need to open the call log (just click on the “handset” icon),
  2. then in the top menu select the icon with "three points" and go to the menu "Blocked" ,
  3. after go to section Call Blocking Rules .

Call Blocking Rules

In this section, you can enable blocking of all unfamiliar and hidden numbers. After that, all calls from numbers that are not in your phone book will be reset (they will be sent a signal "line busy").

Block all unfamiliar numbers

Thus, these calls will not distract you, and no one will occupy the line.

For xiaomi

Another very famous Chinese brand. Their software also has a similar option, however, it is set somewhat differently:

  1. first you need to open "Settings" and open the section "Applications" ,
  2. go to subsection "System applications / Call settings / Antispam settings / Call blocking." See the screenshot below.
  3. then activate the block from unfamiliar and hidden numbers (example below).

Block calls from strangers (Xiaomi)

Clean Android (Samsung, Bright & Quick, Google Pixel / Nexus, etc.). Black and White Lists

If your device is not from Xiaomi or Huawei, most likely it does not have built-in functions for blocking calls. But you can also turn off all undesirable with the help of the Do Not Disturb function * on the "clean" Andro> (there is also a way to install a special application, about it in the next section of the article).

1) first go to the section "Settings" and open the section Sounds and Notifications / Alert Modes .

Sounds and notifications - notification modes

2) After we transfer the notification mode to Important alerts only and indicate that only yours belong to them "contacts" . How it looks is shown in the example below.

Important alerts only (Android 6.0)

By the way!

In newer versions of Andro>"Sounds" and enable mode "Do not disturb" (and, among the priority calls to put "Contacts" , example below).

3) In addition, there are black and white lists in the Android settings. Compiling them can be somewhat tedious, but nevertheless, the method is in some cases very working.

To enable it: go to the dialer menu (just press ✆), then you need to click on three points and go to "Settings" .

Next, use one of the menus:

  1. or "Black list" - everyone who is entered into it will not be able to reach you,
  2. or Allowed Numbers - everyone who is not on this list will not be able to disturb you.

Blacklist and allowed numbers (white list)

Tired of promotional offers that only take away the drago

Tired of promotional offers that only take up valuable time and do not carry a useful information component? Do not want to be distracted by offers to take part in the survey or in the next "profitable" lottery that come in calls from unknown numbers? Perhaps you have friends you would like to block calls from? These, and many other reasons, lead users to think about whether it is possible to block calls from unknown numbers in their smartphone.

In this article we will focus on how to organize blocking of incoming calls, both from unknown and hidden numbers, and to make a list of subscribers from among your contacts whose calls you do not want to receive. Each user who owns a smartphone running Android OS can block unwanted calls on their own, simply by using our recommendations.

Block calls from a hidden number

Android smartphones have a convenient and useful option - the ability to block incoming calls from a hidden number. Despite the fact that this function will be useful to many, a limited number of subscribers know and use it. To begin with, the ability to hide your number from other subscribers is provided by mobile operators. The number hiding service is a standard functionality of GSM networks, and for a fee, anyone can use it. When this option is activated, the message "The number is hidden" will be displayed on the subscriber’s phone to whom you will call.

Ordinary users are not interested in this feature. The ability to hide your number is more interested in various companies: collection, advertising, etc., which are interested in not seeing who is calling you. In other words, a call from a hidden number is usually made by people with whom few people want to communicate. And since the phone numbers of such companies quickly fall into the black list of many subscribers, they use the number hiding service. But the ability to block calls from a hidden number is actually equivalent to blacklisting it.

Now consider how to put a lock on unknown numbers. To get rid of calls from a hidden number, go to your device’s settings and find the call management section. In the "call rejection" menu, enter the "auto reject" mode and go to the black list management, in which activate the option to block unknown numbers. After that, all calls from hidden numbers will be automatically rejected by your smartphone.

How can I block unknown numbers on the Samsung Galaxy

Sometimes it becomes necessary to receive calls and messages only from those numbers that are added to contacts. You cannot block all other numbers with the standard settings, but you can make it so that you do not hear notification sounds from calls and messages if the number is not in the contacts.

If the screen is locked during a call or when a message is received, nothing will be displayed, only the corresponding icons will appear in the notification panel.

Block calls from unwanted numbers

Note that the option described above is not implemented by the operating system itself, so in some smartphones you may not find it. Depending on the manufacturer of the device and the version of the operating system, the name of the sections of the settings menu may also be slightly different. Despite the fact that the Android OS does not provide an integrated option to block unwanted calls and SMS, there is a way out of this situation.

The official Google Play resource offers a wide range of applications with which you can easily set up a blacklist and protect yourself from talking to people and companies who are trying to sell you an unnecessary product or service. One of these specialized applications, with which it is easy to configure blocking calls from unknown numbers, is TrueCaller.


This application is designed to block any unwanted calls, both from unknown and from specific numbers. After installing the program and launching it, the country of your stay will be automatically installed and you will be asked to enter your number. This is necessary for the program to check, and it is important that at this moment your smartphone is connected to the Internet.

After the first launch of the application, you will see a welcome screen, after which you can begin to configure the application. After activation, you get the opportunity to block a contact from your notebook, or a specific phone number. In the "search" field of the application, you can type either the name of the contact or the phone number. After the program finds this number, you can see information about it and activate blocking calls from this subscriber. The program will ask for confirmation of blocking. After that, this number (or several if they belong to a blocked contact) will be included in the spam list. This list is included in the general application database, which allows you to develop and improve the TrueCaller service. This is one of the easiest ways to block calls from unknown numbers. If the number is entered in the service base by other users, then everyone who uses the service is automatically protected from calls from this subscriber.

Now the contact you have blocked will be marked in red. If you decide that you entered it into the blacklist by mistake, or change your mind about blocking, you can simply click "unlock". After that, calls from this number will be received as usual.

Block unwanted SMS

In some cases, simply blocking unknown numbers does not help to completely protect against spam. To block not only calls, but also SMS messages, you will need another application - Truemessenger. Поскольку операционная система Android не предполагает встроенной функции блокировки текстовых сообщений, их можно пометить как "спам" и отправлять в соответствующую папку. Приложение Truemessenger доступно для установки на сервисе Play Маркет и является альтернативным клиентом для обмена и управления СМС сообщениями.

After you install and run the application, the program will offer to confirm your phone number and enter other data for registration. At the next stage, you will need to replace the standard application for working with SMS messages with Truemessenger. The program will apply the available filters, and you will see a list of all your text messages. In addition, you will see a spam folder. Initially, it will be empty, since you do not have a single blocked phone number. To add a specific number to the spam list, just click the corresponding icon located in the upper right part of the application window.

After blacklisting contacts and phone numbers, all text messages that will be received from them will be sent to the spam folder, and you will be shown a blank notification of an SMS message. If you wish, you can see it in this folder.

How to choose an inexpensive powerful smartphone

Now you know how to block an unknown number on your phone. As a bonus, we decided to tell you how to choose an inexpensive, modern and powerful smartphone. Today, the market has a wide selection of mobile devices. But models from well-known manufacturers are often scary for their price, and users have to compromise - either a new device with good technical characteristics and modern functionality, or an inexpensive smartphone, but with outdated equipment that does not meet modern requirements.

But it is not all that bad. In fact, there is a great opportunity to choose a powerful, modern device with excellent characteristics even with a limited budget. It is enough to pay attention to the line of models of young brands that are just beginning to conquer the mobile gadget market. One such company is the British smartphone maker Wileyfox. This brand appeared on the market in the fall of 2015, and immediately attracted the close attention of experts and ordinary users.

Each smartphone with a nice little fox face on the back panel (Wileyfox company logo) has the most popular options among users, excellent equipment and original design. Note that each brand model supports working with two SIM cards and 4G LTE data networks; during assembly, only high-quality case materials and modern powerful modules are used. The flagship company smartphone Wileyfox Swift 2 X can serve as an excellent demonstration of an inexpensive powerful modern device.

Wileyfox Swift 2 X

The smartphone immediately attracts attention with its modern stylish design, which emphasizes the slightly curved 2.5D Full HD IPS display with a diagonal of 5.2 inches. The device received excellent technical specifications and equipment. Qualcomm 430's powerful and efficient 8-core processor provides seamless switching between running applications. Due to the presence of 3 GB of RAM and 32 GB of internal memory, the user is practically unlimited in choosing the programs he needs to work.

The 16-megapixel camera allows you to get photos and videos of excellent quality. You can store music, photos, videos and other documents using the microSDXC memory card (supports work with chips up to 128 GB). The touch display has reliable protection against mechanical damage - Gorilla Glass 3 glass, and for the convenience and comfort of working with it, an oleophobic coating is provided. It is worth noting the presence of a fingerprint scanner and an NFC module, as well as the use of the modern standard for connecting to USB TYPE-C 2.0 and support for fast charging technology.

Buy Wileyfox Swift 2 X, when ordering on the official website, you can just 12 990 rubles.


Despite the fact that not all modifications of smartphones have the ability to protect themselves from unwanted calls and SMS messages, now you know how to block an unknown number so that it does not receive incoming calls or text messages. Instead of looking for the desired function in the device’s settings, it’s much easier to install an application that will save all your settings even after you decide to change your smartphone.

If on an Android 9 device

Select "Notifications."

Select Do Not Disturb.

Select the Allow Exceptions option.

In the items “Calls from” and “Messages from”

select "Contacts only."

Go back and activate the "Enable Now" item. The corresponding icon will appear on top.

If the device is Android 8, 7, 6, or 5

Select Sounds and Vibration.

Select Do Not Disturb.

Select the "Allow exceptions" item

then mark the item “Other” and all those items that are marked in the photo below.

Go back and select "Hide visual notifications."

Include both items that are marked in the photo below.

Go back and click "Enable Now." The corresponding icon will appear on top.