How to Block Unknown Numbers on Android Phones From Google, Samsung, Xiaomi

On Android, “unknown” numbers are specifically the ones that are private and do not appear on caller ID.

Advertisement
By Jagmeet Singh | Updated: 9 January 2022 08:00 IST
Highlights
  • Android users can block unknown numbers using Google Phone app
  • Samsung and Xiaomi also have default ways to block unknown numbers
  • You can also pick a third-party app to block unknown callers

Blocking unknown numbers will help you get rid of unwanted callers to some extent

Photo Credit: Unsplash/ Jonas Leupe

Looking for information on how to block unknown numbers on an Android phone? Google by default provides the option to block unknown numbers on Android. However, since the Android world is of a heterogeneous nature, there's no one way of blocking unknown numbers on phones from different manufacturers. Different skins and interfaces have distinct ways through which you can block unknown numbers on your phone. Having said that, this guide will help you get rid of unwanted callers to some extent.

In this article, we detail the steps you can take to block an unknown number on your Android phone. We are beginning with the steps you can take if you have a Google Pixel phone or a handset with the Google Phone app installed. It comes pre-installed on phones including the OnePlus Nord 2 5G and various Nokia smartphones. You can also download the Google Phone app on your Android device from Google Play.

Advertisement

You have also been provided with ways to block unknown numbers on a Samsung phone and a Xiaomi model later in this article.

How to block unknown numbers on an Android phone with Google Phone app

Here are the steps that you can take to block unknown numbers on an Android phone that has the Google Phone app installed. Scroll down to the next section to look at the steps you can take if you have a Samsung phone.

Advertisement
  1. Open the Phone app.
  2. Tap the three-dot button from the top-right side of the dialler search bar.
  3. Now, tap Settings and then Blocked numbers.
  4. Turn on the Unknown option.

It is important to note that the term “unknown” on Android is not meant for the numbers that are not saved in your contacts. This is in contrast with that of the iPhone, and is meant specifically for calls that surface on you caller ID as ‘private' or ‘unknown'.

How to block unknown numbers on Android phone from Samsung

Below are the steps you can take to block unknown numbers on a Samsung Android phone.

Advertisement
  1. Open the Phone app.
  2. Tap the three-dot menu and then select Settings.
  3. Now, tap Block numbers.
  4. Hit Block unknown/ hidden numbers to block private and unknown numbers on your phone.

How to block unknown numbers on Android phone from Xiaomi

Follow the steps available below to block unknown numbers on an Android phone from Xiaomi. We considered a phone based on MIUI 12.5 to detail the steps. However, there might be some changes if you have a different MIUI version on your device.

  1. Open Phone.
  2. Tap the three-dot button from the search bar.
  3. Select Settings from the menu.
  4. Now, tap Unknown to block all calls from unidentified callers.

In addition to the default ways, there are different third-party apps including Truecaller that help you block unknown numbers on your Android phone.

 
REVIEW
  • Design
  • Display
  • Software
  • Performance
  • Battery Life
  • Camera
  • Value for Money
  • Good
  • Good build quality, low weight
  • Vibrant 120Hz display
  • Polished software experience
  • IP68 rating and wireless charging
  • Dependable cameras
  • Speedy all-round performance
  • Bad
  • No bundled fast charger
  • Lukewarm upgrade over predecessor
  • Missing microSD card slot
 
KEY SPECS
Display 6.40-inch
Processor octa-core
Front Camera 32-megapixel
Rear Camera 12-megapixel + 12-megapixel + 8-megapixel
RAM 6GB, 8GB
Storage 128GB, 256GB
Battery Capacity 4500mAh
OS Android 12
NEWS

Get your daily dose of tech news, reviews, and insights, in under 80 characters on Gadgets 360 Turbo. Connect with fellow tech lovers on our Forum. Follow us on X, Facebook, WhatsApp, Threads and Google News for instant updates. Catch all the action on our YouTube channel.

Advertisement

Related Stories

Popular Mobile Brands
  1. Triple Solar Flare Eruption Sparks G3 Geomagnetic Storm Watch for Earth
  2. Xiaomi 17T Launches in India With Leica-Tuned Triple Rear Cameras
  3. Xiaomi TV FX Mini LED Series With Up to 75-Inch Screen Launched in India
  4. Future James Bond Games Will be Published by Amazon Games
  1. Sun Unleashes Triple Solar Flare Blast, Triggering G3 Geomagnetic Storm Alert
  2. Tomb Raider: Legacy of Atlantis Gets AI Disclosure on Steam, Crystal Dynamics Clarifies AI Use
  3. iPhone 18 Pro Max Leak Hints at No Significant Changes to Smartphone's Thickness Over Predecessor
  4. OnePlus 16 and iQOO 16 Development Progressing 'Rapidly', Could Launch Sooner Than Expected, Tipster Claims
  5. Nintendo Switch 2 Could Get a Removable Battery Variant Next Year to Comply With EU Regulations
  6. Maa Behen Out on OTT: Know Where to Stream This Madhuri Dixit Starrer Film
  7. FIFA World Cup 2026: LASD Issues Warning Over Crypto Scams Days Ahead of World Cup
  8. Night Shift For Cuties Now Available for Streaming Online: What You Need to Know
  9. Dridam OTT Release Date: When and Where to Watch Shane Nigam’s Crime Thriller Online
  10. Gram Chikitsalay Season 2 OTT Release Date: When and Where to Watch it Online?
Download Our Apps
Available in Hindi
© Copyright Red Pixels Ventures Limited 2026. All rights reserved.