How to Block Spam Calls and Scam Messages on Android

Silencing Telemarketers and Financial Scammers Automatically

Spam phone calls, robo-dialers, fraudulent loan offers, and SMS phooling scams have become an irritating daily nuisance for smartphone users across India and globally. Cybercriminals and aggressive telemarketers use automated auto-dialer software and caller ID spoofing to flood phone numbers with fake bank alerts and lottery wins. Fortunately, modern Android smartphones come equipped with powerful native anti-spam tools and caller ID screening technologies that automatically identify, filter, and silence spam calls before your phone even rings. Here is how to block spam calls and messages on Android.

Method 1: Enable Google Phone App Built-In Spam Protection

If your phone uses the standard Google Phone app (default on Pixel, Motorola, Xiaomi, OnePlus, and Nothing phones):

1. Open the Phone app, tap the three-dot menu icon in the upper right corner, and select Settings.
2. Tap Caller ID & spam.
3. Toggle ON See caller and spam ID and Filter spam calls. When active, Google automatically silences suspected spam calls without ringing your phone.
4. Enable Call Screen (where available) to have Google Assistant answer unknown callers and provide live text transcriptions of their intent.

Method 2: Enable Android Messages SMS Spam Protection

To stop spam SMS messages containing fake courier tracking links and financial scams:

1. Open Google Messages, tap your profile icon in the top right, and select Messages settings.
2. Tap Spam protection and toggle ON Enable spam protection.
3. Google’s machine learning models analyze incoming message patterns locally, automatically moving suspected scam texts to your Spam & Blocked folder.

Method 3: Configure DND and National Do Not Disturb (TRAI DND)

For Indian mobile users, register your phone number on the official TRAI DND (Do Not Disturb) registry by sending an SMS containing START 0 to 1909 or using your mobile carrier app (Jio, Airtel, Vi). Combine this with Android’s built-in Do Not Disturb schedule to enjoy peaceful, distraction-free hours. Taking these multi-layered preventative steps completely eliminates unwanted telemarketing interruptions. For more Android security guides, spam blocking tips, and OS walkthroughs, visit Android People.

Final Recommendations for Android Users

Keeping your mobile software optimized and secure is an essential practice for all smartphone owners. Operating system updates released by Google and device manufacturers continuously deliver critical security patches, performance refinements, and new features designed to protect your personal data. Always make sure to download applications from trusted sources and review app permissions regularly to maintain peak performance and digital safety across all your devices.