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TipsMay 6, 2026

Comparing Hiya and Carrier Call Filtering: Which Effectively Blocks Fake Local Calls?

By The Robokiller Team

Comparing Hiya and Carrier Call Filtering: Which Effectively Blocks Fake Local Calls?

In the United States, the prevalence of fake local calls—where scammers use local area codes to deceive recipients—has escalated, prompting the development of various call filtering solutions. Two prominent approaches are Hiya, a third-party spam detection service, and carrier-based call filtering systems. This article examines their effectiveness in combating fake local calls.

What Is Hiya and How Does It Work?

Hiya is a comprehensive call protection service that identifies and blocks unwanted calls, including spam, fraud, and nuisance calls. It operates through a mobile app and integrates with carriers and device manufacturers to provide real-time call analysis. Hiya's system analyzes billions of calls daily, cross-referencing incoming numbers against a vast global database of known fraudsters and reported spam numbers. This extensive data enables Hiya to detect and label suspicious calls effectively. (subtech.it.com)

How Do Carrier Call Filtering Systems Function?

Carrier call filtering involves network-level solutions implemented by mobile service providers to detect and block unwanted calls before they reach the user's device. These systems analyze call patterns, such as call volume and frequency, to identify potential spam or fraudulent calls. Carriers may also utilize databases of known spam numbers and collaborate with third-party services to enhance their filtering capabilities. For instance, Verizon's Call Filter service detects spam and blocks high-risk spam calls by forwarding them to voicemail. (sourceforge.net)

Which Is More Effective Against Fake Local Calls?

Both Hiya and carrier call filtering systems aim to protect users from unwanted calls, but their effectiveness against fake local calls varies. Hiya's extensive database and real-time analysis allow it to identify and label suspicious calls, including those using local area codes to spoof legitimacy. This capability is particularly beneficial in detecting and blocking fake local calls. In contrast, carrier call filtering systems may not be as adept at identifying calls from local numbers that are actually spam or fraud, as they often rely on known spam number databases and call pattern analysis, which can be less effective against new or rapidly changing scam tactics. (blog.hiya.com)

How Does Hiya Compare to Carrier Call Filtering in Terms of Accuracy?

A study assessing the accuracy of spam detection providers found that Hiya outperformed competitors like First Orion and TNS in identifying unwanted robocalls. Hiya achieved an identification rate of 87%, compared to First Orion's 55% and TNS's 34%. Additionally, Hiya's error rate was significantly lower at 0.25%, indicating fewer false positives. This high level of accuracy suggests that Hiya is more effective in accurately detecting and blocking unwanted calls, including fake local calls, compared to some carrier call filtering solutions. (hiya.com)

Are There Limitations to Hiya and Carrier Call Filtering?

While Hiya offers robust protection against unwanted calls, it is not entirely immune to limitations. For example, if a scammer uses a brand-new number that has never been used for outbound calling before, there may be a short window of latency where Hiya has not yet flagged the number. However, Hiya monitors "velocity"—the speed at which a number makes consecutive calls—and typically identifies and labels these new threats within minutes of their first appearance in the network. (subtech.it.com)

Carrier call filtering systems also have their constraints. They may not be as effective at identifying calls from local numbers that are actually spam or fraud, as they often rely on known spam number databases and call pattern analysis, which can be less effective against new or rapidly changing scam tactics. (blog.hiya.com)

Conclusion: Which Is the Superior Solution?

In the battle against fake local calls, Hiya emerges as a more effective solution compared to traditional carrier call filtering systems. Its extensive database, real-time analysis, and high accuracy rates make it well-suited to identify and block unwanted calls, including those using local area codes to deceive recipients. While carrier call filtering provides an additional layer of protection, it may not be as adept at detecting and blocking fake local calls. Therefore, integrating Hiya's services can offer enhanced protection against unwanted calls in the United States.

Highlights:

  • Hiya News: First-of-its-Kind Study Ranks Spam Detection Providers’ Ability to Accurately Detect Unwanted Robocalls, Published on Wednesday, May 08
  • Is STIR/SHAKEN Stopping Spam Calls? | Hiya, Published on Tuesday, October 15

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