How does Truecaller identify spam calls?

Truecaller uses a community-driven database where users contribute information about spam numbers to identify and block unwanted calls.

Can Verizon Call Filter block spoofed calls?

Yes, Verizon Call Filter utilizes the STIR/SHAKEN protocol to authenticate caller ID information, effectively blocking spoofed calls.

Verizon Call Filter vs. Truecaller: Which Is Better for Blocking Spoofed Calls?

In the United States, spoofed calls—where callers disguise their identity by falsifying caller ID information—pose a significant challenge to mobile users. Two prominent solutions aimed at mitigating this issue are Verizon's Call Filter and the Truecaller app. This article examines both services to determine which offers superior protection against spoofed calls.

What Is Verizon Call Filter?

Verizon's Call Filter is a service designed to identify and block unwanted calls, including spam and robocalls. It offers two tiers:

Call Filter (Free): Provides spam detection, alerts for potential spam calls, and the ability to report unsolicited numbers.
Call Filter Plus ($3.99/month): Includes all free features plus caller ID, spam lookup, personal block list, spam risk meter, and the ability to block calls by category. (verizon.com)

A notable feature of Call Filter is the Neighborhood Filter, which blocks calls from numbers sharing the same area code and prefix as the user's number, a common tactic used by spoofers to appear local. (fortune.com)

What Is Truecaller?

Truecaller is a third-party application available for Android and iOS devices that identifies unknown callers and blocks spam calls. It leverages a vast database of known spam numbers to provide real-time caller identification. (en.wikipedia.org)

How Effective Are These Services at Blocking Spoofed Calls?

Both Verizon Call Filter and Truecaller aim to protect users from spoofed calls, but they employ different methodologies:

Verizon Call Filter: Utilizes the STIR/SHAKEN protocol, a framework designed to authenticate caller ID information and reduce spoofing. This technology helps verify that the number displayed matches the actual caller, thereby reducing the incidence of spoofed calls. (verizon.com)
Truecaller: Relies on a community-driven database where users contribute information about spam numbers. While this approach is effective for known spam numbers, it may be less effective against new or less common spoofing tactics.

Which Service Offers Better Protection Against Spoofed Calls?

When comparing the two services:

Verizon Call Filter: The integration of the STIR/SHAKEN protocol provides a robust mechanism for authenticating caller ID information, making it effective at blocking spoofed calls. (verizon.com)
Truecaller: While it offers a vast database for identifying known spam numbers, its reliance on user-generated data may not be as effective against new or evolving spoofing techniques.

Conclusion

For Verizon customers seeking to block spoofed calls, Verizon's Call Filter, with its integration of the STIR/SHAKEN protocol, offers a more comprehensive and effective solution. Its ability to authenticate caller ID information provides a higher level of protection against spoofed calls compared to Truecaller's community-driven approach.

However, it's important to note that no solution can guarantee 100% protection against all spoofed calls. Users should remain vigilant and consider using additional measures, such as reporting suspicious numbers and being cautious with unknown callers.