Does AT&T offer a service to block anonymous calls?

Yes, AT&T provides a feature to block anonymous calls by dialing *77 from your handset or enabling it online through the AT&T Phone Portal. (att.com)

How to Reduce Private Number Calls on Your US Phone

Receiving calls from private or unknown numbers can be both frustrating and intrusive. Fortunately, there are several methods to reduce or block these calls on your US phone.

What Are Private Number Calls?

Private number calls are those where the caller's identity is hidden, and your phone displays "Private Number," "Unknown," or "Blocked" instead of a phone number. This anonymity is often used by telemarketers, scammers, or individuals who prefer not to disclose their identity.

How Can I Block Private Number Calls on My iPhone?

While iOS doesn't offer a built-in feature to block private numbers directly, you can use the "Silence Unknown Callers" feature to minimize such calls:

Open the Settings app.
Scroll down and tap on Phone.
Toggle on Silence Unknown Callers.

This setting silences calls from numbers not in your contacts, recent calls, or Siri Suggestions. These calls will be sent to voicemail, and you can review them later. Be aware that this may also silence important calls from unknown numbers. (techradar.com)

How Can I Block Private Number Calls on My Android Phone?

Many Android devices allow you to block calls from private numbers directly:

Open the Phone app.
Tap the three-dot menu (⋮) in the top-right corner and select Settings.
Go to Blocked Numbers.
Toggle on Block Calls from Private Numbers.

This will prevent calls from private numbers from ringing on your device. Note that the exact steps may vary depending on your device manufacturer. (techadvisor.com)

Can My Carrier Help Block Private Number Calls?

Yes, some US carriers offer services to block calls from private numbers:

AT&T: You can block anonymous calls by dialing *77 from your handset. To enable this feature online:

Visit the AT&T Phone Portal.
Sign in with your member ID.
Navigate to Features > Call Filtering.
Toggle on Block Anonymous Calls.

This feature blocks calls from numbers that withhold their caller ID information. (att.com)

Verizon: Verizon offers a service called Call Filter, which can identify and block spam calls. To activate it:

Log in to your My Verizon account.
Navigate to the Blocks page.
Select Call Filter and follow the prompts to enable it.

This service helps in reducing unwanted calls, including those from private numbers. (verizon.com)

Are There Third-Party Apps to Block Private Number Calls?

Yes, several third-party apps can help identify and block private or unknown calls:

RoboKiller: This app uses advanced algorithms to block spam and robocalls, including those from private numbers. It offers features like automatic call blocking and a spam call database. (kiplinger.com)
Hiya: Hiya provides caller ID and call blocking services, identifying spam and robocalls. It offers real-time alerts and a community-based spam list. (kiplinger.com)
Truecaller: Truecaller identifies unknown calls and blocks spam calls. It has a large community-based spam list and offers features like call recording and messaging. (kiplinger.com)

These apps are available for both iOS and Android devices and can be downloaded from the App Store or Google Play Store.

What Are the Limitations of Blocking Private Number Calls?

While these methods can significantly reduce private number calls, they may not eliminate them entirely. Some important calls from unknown numbers might be missed, and some robocallers may still find ways to bypass these measures. It's essential to balance call blocking with the need to receive legitimate calls.

Conclusion

Reducing private number calls on your US phone involves a combination of device settings, carrier services, and third-party apps. By implementing these strategies, you can minimize unwanted interruptions and maintain better control over your incoming calls.