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TipsMay 6, 2026

How to Screen Unknown Callers on Your US Phone

By The Robokiller Team

How to Screen Unknown Callers on Your US Phone

Unwanted calls from unknown numbers can be a significant nuisance. Fortunately, there are several effective methods to screen these calls on your US phone, utilizing both built-in features and third-party applications.

What Are Unknown Callers?

An "unknown caller" is typically a number that doesn't display its caller ID information. This can include telemarketers, robocallers, or individuals not saved in your contacts. Screening these calls helps protect your privacy and reduces interruptions.

How Can I Screen Unknown Callers on an iPhone?

1. Enable Call Screening (iOS 26 and Later):

iOS 26 introduces a feature that prompts unknown callers to state their name and reason for calling before your phone rings. To activate it:

  • Open Settings.
  • Tap Apps > Phone.
  • Under Screen Unknown Callers, select Ask Reason for Calling.

This feature allows you to decide whether to accept or decline calls based on the caller's response. (techradar.com)

2. Silence Unknown Callers:

This option silences calls from numbers not in your contacts, recent calls, or Siri Suggestions, sending them directly to voicemail. To enable:

  • Go to Settings > Phone.
  • Toggle on Silence Unknown Callers.

Be aware that this may also silence important calls from unknown numbers. (techradar.com)

How Can I Screen Unknown Callers on an Android Phone?

1. Use the Google Phone App:

The Google Phone app offers features to identify and block spam calls:

  • Install the Phone by Google app from the Play Store.
  • Set it as your default dialer.
  • Open the app, tap the three-dot menu, and select Settings.
  • Enable Caller ID & Spam to see potential spam warnings.

This helps you identify and avoid spam calls effectively. (howtogeek.com)

2. Block Unknown Callers:

To block calls from unknown numbers:

  • Open the Phone app.
  • Tap the three-dot menu and select Settings.
  • Go to Blocked Numbers and toggle on Unknown.

This will prevent calls from numbers without caller ID from ringing through. (howtogeek.com)

Are There Third-Party Apps to Help Screen Unknown Callers?

Yes, several third-party apps can assist in screening unknown callers:

  • RoboKiller: This app identifies and blocks spam calls, providing real-time alerts and detailed reports. (kiplinger.com)

  • Hiya: Offers caller ID and spam blocking features, alerting you to potential spam calls.

  • Truecaller: Provides a comprehensive database to identify and block spam calls.

Note: While these apps can be effective, they may also block legitimate calls. It's essential to review blocked calls periodically to ensure you don't miss important communications.

How Can I Report Unwanted Calls?

Reporting unwanted calls helps authorities track and combat spam and scam activities:

Note: Registration may not stop all unwanted calls, as some are exempt from the registry.

Conclusion

Screening unknown callers is crucial for maintaining privacy and reducing interruptions. Utilizing built-in features on your iPhone or Android device, along with third-party apps, can effectively manage these calls. Always stay vigilant and report unwanted calls to help combat spam and scam activities.

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