Blocking Unknown Calls on iPhone: A Comprehensive Guide
With the rise of spam calls and telemarketing, it's becoming increasingly frustrating to deal with unwanted calls on our iPhones. Fortunately, Apple has equipped its devices with features that allow users to block unknown calls and ensure a smoother, more peaceful phone experience. In this article, we'll explore the various ways to block unknown calls on iPhone, covering both free and paid methods.
Method 1: Block Unknown Calls Using iPhone Settings
One of the simplest ways to block unknown calls on iPhone is by using the built-in settings. Here's how:
- Go to Settings and tap on Phone.
- Scroll down to Allow Calls From These Folders and toggle the switch to Blocked Contacts.
- You can also enable Auto-Block Wi-Fi Calls to block unknown calls over Wi-Fi.
Method 2: Use the Do Not Disturb Feature
Another effective way to block unknown calls on iPhone is by using the Do Not Disturb feature. This feature allows you to silence calls, texts, and notifications during a specified period:

- Go to Settings and tap on Do Not Disturb.
- Toggle the switch to enable Do Not Disturb and set your desired schedule.
- You can also allow Repeat Calls from the same caller.
Method 3: Utilize Third-Party Apps
While Apple provides some built-in features to block unknown calls, third-party apps can offer more advanced options and features. Some popular apps include:
- truecaller – Identify and block unwanted calls and texts.
- WhosCall – Block calls, filter texts, and identify unknown numbers.
- Call Blocker – Block calls, texts, and emails from specific numbers or keywords.
Method 4: Report and Block Spam Calls
Method 4: Report and Block Spam Calls
Apple has introduced a feature that allows users to report and block spam calls directly from the Phone app:
- When a spam call comes in, tap on Report Junk to report it to Apple.
- Apple will then use this data to improve its algorithms and block future spam calls.
- You can also block the number manually by going to Settings > Phone > Blocked Contacts.
Method 5: Use Call Filter by Verizon (for Verizon Customers)
Verizon customers can use the Call Filter feature to block unknown calls and identify potential spam:

- Go to Settings and tap on Phone.
- Scroll down to Call Filter and toggle the switch to enable it.
- You can also customize your call filter settings and block numbers manually.
Method 6: Use NumberGuard (for AT&T Customers)
AT&T customers can use the NumberGuard feature to block unknown calls and identify potential spam:
- Go to Settings and tap on Phone.
- Scroll down to NumberGuard and toggle the switch to enable it.
- You can also customize your NumberGuard settings and block numbers manually.
Additional Tips and Precautions
When blocking unknown calls on iPhone, keep the following tips in mind:
- Make sure to report spam calls to Apple to help improve its algorithms.
- Be cautious when using third-party apps, as some may have compatibility issues or invade your privacy.
- Don't rely solely on blocking unknown calls; also be mindful of your interactions with unknown callers.
- Regularly review and update your blocked contacts list to ensure it remains effective.