How to Block Spam Calls on iPhone in the US Easily

 Spam calls are a major nuisance for iPhone users in the U.S., including telemarketing, scam, and robocalls. Blocking them not only reduces distractions but also protects your privacy. This OnePlus guide provides step-by-step instructions to block spam calls effectively on your iPhone.

Why Block Spam Calls

  • Reduce interruptions during work, meetings, or personal time.

  • Protect against scams and fraudulent calls.

  • Maintain privacy by limiting unknown callers.

  • Enhance productivity by avoiding unwanted distractions.

Step 1: Use Built-In iPhone Features

  1. Silence Unknown Callers:

    • Go to Settings → Phone → Silence Unknown Callers.

    • Toggle it on.

    • Calls from numbers not in your contacts, Mail, or Messages go straight to voicemail.

  2. Block Specific Numbers:

    • Open the Phone app → Recents.

    • Tap the info (i) icon next to the number.

    • Tap Block this Caller → Block Contact.

This method works well for repeated spam numbers.

Step 2: Use Carrier Tools

Most U.S. carriers provide built-in spam call filtering:

  • AT&T: Free Call Protect app blocks suspected spam.

  • Verizon: Free Call Filter app identifies and blocks robocalls.

  • T-Mobile: Scam Shield app automatically filters spam calls.

OnePlus Tip: Download the carrier’s official app from the App Store and enable automatic spam detection for the best results.

Step 3: Install Third-Party Spam Blocker Apps

Trusted apps in the U.S. include:

  • Hiya

  • Truecaller

  • RoboKiller

Steps:

  1. Download and install the app.

  2. Allow it to access Phone & Contacts.

  3. Enable Call Blocking & Identification: Settings → Phone → Call Blocking & Identification → toggle app on.

These apps provide real-time spam detection and can block thousands of known spam numbers automatically.

Step 4: Enable Do Not Disturb for Unknown Callers

  • Settings → Focus → Do Not Disturb → Customize → Allow Calls From → All Contacts.

  • This silences calls from unknown numbers while letting your contacts through.

  • Ideal for U.S. users who want minimal interruptions during work hours.

Step 5: Report Spam Numbers

Reporting helps reduce spam calls nationwide.

OnePlus Tip

Combine multiple methods: enable carrier spam filtering, use third-party apps, and silence unknown callers. This layered approach provides the most effective protection against robocalls and scams in the U.S.

Related OnePlus Guides

Final Thoughts

Blocking spam calls on iPhone is essential for productivity, privacy, and safety. By following OnePlus’ step-by-step guide — using built-in features, carrier tools, and trusted third-party apps — U.S. iPhone users can enjoy a hassle-free phone experience and minimize unwanted interruptions.

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