← Back to Blog
TipsMay 6, 2026

How to Effectively Block Suspicious Messages in the United States

By The Robokiller Team

How to Effectively Block Suspicious Messages in the United States

In today's digital age, receiving unsolicited and potentially harmful messages is a common concern for many smartphone users in the United States. These messages, often from unknown senders, can range from spam and phishing attempts to outright scams. Fortunately, there are several effective strategies and tools available to help you block these unwanted communications and safeguard your personal information.

What Are Suspicious Messages and Why Are They a Concern?

Suspicious messages typically include unsolicited texts or calls from unknown numbers, often promoting dubious offers, requesting personal information, or containing malicious links. Engaging with such messages can lead to privacy breaches, financial loss, or exposure to malware. In 2022, an estimated 70 million Americans lost a combined $40 billion due to phone scams, including calls and texts. (currently.att.yahoo.com)

How Can You Block Suspicious Messages on Your Smartphone?

1. Utilize Built-in Smartphone Features

Both Android and iOS devices offer native features to help filter and block unwanted messages:

  • iOS Devices: Enable the "Filter Unknown Senders" option by navigating to Settings > Messages. This feature separates messages from unknown senders into a separate tab, reducing the risk of interacting with suspicious content. (hp.com)

  • Android Devices: Access the Phone app, go to Settings > Blocked numbers, and activate the "Unknown" option to block calls from unidentified numbers. Additionally, many Android phones allow you to report spam directly from the messaging app. (hp.com)

2. Leverage Carrier Services

Many U.S. carriers provide built-in spam protection services:

  • AT&T: Offers the Call Protect app, which identifies and blocks spam calls and texts. The basic version is free, while premium features are available for a monthly fee. (hp.com)

  • Verizon: Provides the Call Filter app, which automatically detects and blocks spam calls and texts. Users can also report spam numbers directly through the app. (hp.com)

  • T-Mobile: Features Scam Shield, a service that identifies and blocks scam calls and texts. Users can activate Scam Block by dialing #662# on their T-Mobile device. (robokiller.com)

3. Install Third-Party Spam Blocking Apps

Several apps are designed to enhance spam protection:

  • Robokiller: Blocks 99% of spam calls and scam texts using predictive algorithms and machine learning. It also features Answer Bots that waste spammers' time. (robokiller.com)

  • Truecaller: Identifies unknown callers and automatically blocks spam numbers based on user reports and AI detection. (nooranweb.com)

  • Hiya: Provides spam call detection and blocking, with a free version offering basic protection and a premium version for additional features. (verified.org)

4. Report Spam Messages

Reporting suspicious messages to your carrier or the Federal Trade Commission (FTC) helps authorities track and combat spam and scam activities. Most carriers allow users to report spam directly through their apps or websites.

How Does Robokiller Stand Out in Blocking Suspicious Messages?

Robokiller distinguishes itself by offering comprehensive protection against both spam calls and texts, regardless of your carrier. Its advanced AI algorithms analyze and block unwanted communications, providing a higher level of security compared to some carrier-specific solutions. Additionally, Robokiller's Answer Bots engage with spammers, wasting their time and reducing the likelihood of future spam attempts. (robokiller.com)

What Are the Limitations of Carrier Services in Blocking Suspicious Messages?

While carrier services like AT&T's Call Protect, Verizon's Call Filter, and T-Mobile's Scam Shield offer valuable spam protection, they may have limitations:

  • Coverage: Some services are exclusive to specific carriers, leaving users of other networks without built-in protection.

  • Features: Carrier services might not offer as comprehensive features as third-party apps, such as blocking both calls and texts or providing detailed spam reports.

How Can You Prevent Receiving Suspicious Messages in the Future?

  • Be Cautious with Your Contact Information: Limit sharing your phone number online and avoid posting it publicly.

  • Opt-Out of Marketing Communications: Use opt-out options provided by companies to reduce unsolicited messages.

  • Educate Yourself: Stay informed about common scam tactics and be skeptical of unsolicited messages requesting personal information.

Conclusion

Blocking suspicious messages is essential for maintaining your privacy and security in the digital era. By utilizing built-in smartphone features, carrier services, and third-party apps like Robokiller, you can effectively reduce unwanted communications and protect yourself from potential scams.

Highlights:

Frequently Asked Questions

Related articles

Live life spam-call-free.

Robokiller blocks 99% of spam calls and texts so you can take your phone back.

Try free for 7 days