How to Block A Number on iPhone and Completely Erase It

Unwanted calls can be really annoying, regardless of whether they are from telemarketers, accident helplines, PPI claim providers, or a friend you had a falling out with. Fortunately, you can block numbers on iPhone and stop unwanted calls altogether. Blocked users won't be able to call you.

How to Block a Number on iPhone

Following are two ways to learn how to block a number on iPhone:

1. Via Settings

You can easily block numbers on iPhone via the Settings app. Follow these instructions:

Step 1: Open Settings on your iPhone.
Step 2: Navigate to Phone > Calls > Call Blocking & Identification section of the settings. A list of contacts and phone numbers that you have previously blocked will appears.
Step 3: Now find and select Block Contact.
Step 4: Browse contacts and select the one that you wish to block. Once the number is added, it will no longer be able to reach you via calls, Messages, or FaceTime.
Step 5: Now repeat the above two steps to add as many contacts as you want in order to block them.

block via setting

2. Via Phone App

You can also use the Phone app to block numbers on iPhone that you don’t want to receive calls from. Follow these instructions:

Step 1: Open Phone app on your iPhone and navigate to the ‘Recents’ section.
Step 2: Find and select the number you wish to block and tap ⓘ next to that number.
Step 3: Now find and select the option ‘Block this Caller’ and then tap ‘Block Contact’ when prompted. The number will now be blocked.
Step 4: Repeat these steps to block as many contacts as you like.

block via phone app

How to Completely Erase Blocked Contacts

After knowing how to block a number on iPhone, you may wonder how to erase the blocked contacts. iMyFone Umate Pro for Win or for Mac is a third-party iPhone data erasing tool that is capable of deleting various types of iPhone data permanently and making it unrecoverable. You can permanently erase blocked contacts via this software. Some of the other features Umate Pro offers include erase all iPhone data with a single click, erase deleted files, bulk uninstall apps, clean up junk files to boost iPhone’s performance, etc.

Umate Pro iphone data eraser

1,000,000+ Downloads

Key Features:

  • Erase all your iPhone data quickly and permanently. This is very helpful when you are about to sell your iPhone.
  • Erase data traces of deleted files to make them unrecoverable.
  • Permanently erase private and sensitive data such as call logs, messages, blocked numbers, data from Kik, Viber, WeChat, WhatsApp, etc.
  • Erase private data fragments left by third-party apps after they are uninstalled.
  • Optimize iPhone with a single click, save space and boost its performance.
    Preview data before deleting.

Try It FreeTry It Free

Steps to Erase Blocked Contacts via Umate Pro:

Step 1: Connect your iPhone to your computer via compatible lightning cable.
Step 2: Launch Umate Pro and wait for it to detect your connected iPhone.

erase private data

Step 3: From the home interface of Umate Pro, select ‘Erase Private Data’ and then click the ‘Scan’ button.

erase now

Step 4: Once the scan is finished, preview and select the block contacts that you wish to delete and then click the ‘Erase Now’ button.
Step 5: On the next window, select a security level for deletion (from low, medium, and high) and click OK.
Step 6: Type ‘delete’ in the textbox and then click the ‘Erase Now’ button to proceed. The deletion process will begin.

Other Tips about Contacts and Calls

1. How to Erase Deleted Contacts

With Umate Pro, you can permanently erase contacts that you have deleted from your iPhone. Follow these instructions:

Step 1: Launch iMyFone Umate Pro on your Windows PC or Mac.
Step 2: Use a compatible lightning or USB cable to connect your iPhone to your computer.

erase deleted contact

Step 3: From the home interface of Umate Pro, click on ‘Erase Deleted Files’ tab and then click the ‘Scan’ button.

erase now

Step 4: Once the scan is completed, preview and select the deleted contacts that you wish to permanently erase and then click the ‘Erase Now’ button.
Step 5: Select deletion security level and then type ‘delete’ in the textbox. Once you have configured everything, click the ‘Erase Now’ button to proceed. The deletion process will begin.

2. How to Detect and Block Spam Calls

There are many third-party apps such as Truecaller, Nomorobo, Hiya, Mr. Number, etc. that you can use in order to detect and block spam calls. You will need to configure Call Blocking & Identification setting on your iPhone for automatic detection and blocking of spam calls.

Follow these instructions:

Step 1: Download and install a third-party call blocking app from App Store.
Step 2: Configure the app to detect spam calls.
Step 3: Now open Settings app and navigate to Phone > Call Blocking & Identification.
Step 4: Find the call blocking app you have installed in the first step and tap the switch next to it. Now the app will automatically identify and block spam calls.