← Back to Blog
TipsMay 6, 2026

How to Block Fake Local Calls on Your Mobile Phone

By The Robokiller Team

How to Block Fake Local Calls on Your Mobile Phone

Receiving fake local calls can be a significant nuisance, often leading to scams or unwanted solicitations. Fortunately, there are effective strategies and applications available to help you block these calls and safeguard your privacy.

What Are Fake Local Calls?

Fake local calls, also known as "neighbor spoofing," occur when scammers manipulate caller ID information to display a local area code or number similar to yours. This tactic increases the likelihood of you answering the call, as it appears familiar. Once answered, these calls may be used for fraudulent activities, such as phishing or selling personal information.

How Can You Block Fake Local Calls?

Blocking fake local calls involves a combination of built-in phone features, carrier services, and third-party applications. Here's how you can implement each:

1. Utilize Built-in Phone Features

For iPhone Users:

  • Silence Unknown Callers: This feature automatically silences calls from numbers not in your contacts, recent calls, or Siri Suggestions. The calls go straight to voicemail, and you can view them in your recent calls list. To enable this, go to Settings > Phone > Silence Unknown Callers.

For Android Users:

  • Caller ID & Spam Protection: Many Android devices offer built-in spam protection that identifies and blocks suspected spam calls. To activate this, open the Phone app, tap the three-dot menu, select Settings, then Caller ID & Spam.

2. Leverage Carrier Services

Major carriers provide services to help block spam and robocalls:

  • Verizon Call Filter: Identifies and blocks spam calls, with options for premium features.

  • AT&T ActiveArmor: Offers spam call blocking and fraud risk alerts.

  • T-Mobile Scam Shield: Provides scam call blocking and caller ID verification.

Check with your carrier for specific features and activation instructions.

3. Install Third-Party Call Blocking Apps

For enhanced protection, consider using third-party applications designed to block fake local calls:

Robokiller:

  • Features: Blocks 99% of spam calls and texts using advanced AI technology. Offers features like call screening, voicemail transcription, and customizable block lists. Robokiller has over 12 million installs in the U.S. alone and has won multiple awards, including the Webby Award for Technical Achievement in 2019 and 2021. (robokiller.com)

Truecaller:

  • Features: Identifies unknown callers in real-time using a global spam list. Allows users to block spam calls automatically or manually. Truecaller has a massive database built from reports by over 450 million users. (calilio.com)

Hiya:

  • Features: Provides caller ID, spam detection, and call blocking. Hiya powers spam-call protection for many smartphones and telecom providers worldwide. (entreresource.com)

Comparison:

While Truecaller boasts a vast user base and extensive spam database, Robokiller differentiates itself by using AI-driven "Answer Bots" that engage scammers, wasting their time and reducing their capacity to make calls. This unique approach not only blocks spam but also actively combats it. (entreresource.com)

How Do These Apps Work?

These applications utilize various technologies to identify and block fake local calls:

  • Crowdsourced Databases: Apps like Truecaller rely on user reports to build extensive databases of known spam numbers.

  • AI and Machine Learning: Robokiller employs AI algorithms to detect and block spam calls, including those from number-changing scammers.

  • Call Screening: Some apps, such as Robokiller, use automated responses to engage and waste the time of scammers.

Are These Apps Effective?

Yes, these apps have proven effective in reducing spam calls:

  • Robokiller: Blocks over 99% of spam calls and texts. (robokiller.com)

  • Truecaller: Identifies and blocks a significant number of spam calls, with a global user base of over 450 million. (calilio.com)

Are There Any Drawbacks?

While these apps are effective, there are some considerations:

  • Privacy Concerns: Some apps may require access to your contacts or other personal data.

  • Cost: Premium features often require a subscription.

  • Compatibility: Ensure the app is compatible with your device and operating system.

Conclusion

Blocking fake local calls is essential for maintaining your privacy and peace of mind. By utilizing built-in phone features, carrier services, and third-party applications like Robokiller, you can effectively reduce or eliminate these unwanted calls. Robokiller's unique approach, combining AI technology with proactive call engagement, offers a comprehensive solution to the problem of fake local calls.

Top 5 Apps to Block Spam Calls & Scams

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