If I Block Someone On iPhone Will They Know? The Answer Revealed

Blocking someone on an iPhone is a straightforward process. To do it, you simply need to open the contact or message from the person you want to block, tap on their name or number, scroll down, and select “Block this Caller”. Once you’ve done this, the person will no longer be able to contact you through calls, messages, or FaceTime.

After you block someone, they will not receive any sort of notification that they have been blocked. However, they may notice some changes in the way their calls and messages are handled. For example, their calls will go straight to voicemail, and their messages will not show as “delivered”.


Have you ever been in a situation where you wanted to block someone on your iPhone but hesitated because you were worried they might find out? It’s a common concern, and the answer isn’t always straightforward. Blocking someone can provide peace of mind and a sense of control over your interactions, but it can also lead to awkward situations if the person realizes they’ve been blocked. This article aims to shed light on this delicate topic and provide clarity on what happens after you make the decision to block someone on your iPhone.

Whether it’s a persistent telemarketer, an ex-partner who won’t stop texting, or a friend who’s crossed the line one too many times, there are numerous reasons why someone might choose to block another person on their iPhone. It’s a feature that’s been around for quite some time, and it’s a powerful tool for managing your personal boundaries and privacy. In this digital age, understanding how these features work is crucial, as they can significantly impact our social interactions.

Step by Step Tutorial on How to Block Someone on iPhone

Before we dive into the intricacies of what happens after you block someone, let’s go over the steps to actually block someone on your iPhone.

Step 1: Open the Contact or Message

Open the contact or message from the person you want to block.

Step 2: Tap on the Name or Number

Tap on the name or number at the top of the message thread or contact details.

Step 3: Scroll Down and Select “Block this Caller”

Scroll down and tap on “Block this Caller” to add the person to your block list.

After following these steps, the person will be unable to contact you through calls, messages, or FaceTime. It’s a simple but effective way to manage who can reach you on your iPhone.


Peace of MindBlocking someone can give you a sense of relief, especially if they were causing you stress or anxiety with their constant calls or messages.
Privacy ControlYou have the power to decide who can contact you and who cannot, giving you greater control over your personal privacy.
Reduced DistractionsUnwanted contact can be distracting. Blocking the person can help you focus on more important matters.


No NotificationThe person will not receive a notification that they have been blocked, which may lead to confusion or confrontation if they realize it on their own.
IrreversibleOnce you block someone, there’s no way for them to contact you unless you decide to unblock them. This can be a downside if you block someone in the heat of the moment.
Not FoolproofA determined individual may find other ways to contact you, such as through a different phone number or social media platform.

Additional Information

Now that we’ve covered the basics, let’s delve into some additional details. When you block someone on your iPhone, it’s not just their calls that are affected. Their messages won’t show as “delivered,” and if they try to FaceTime you, it will ring endlessly on their end without ever connecting. However, it’s important to note that blocking someone does not remove them from your contacts list or delete past message threads; it simply prevents any future communication.

Moreover, if you’re worried about the person finding out they’ve been blocked, they might notice some indirect signs. For instance, if they’re savvy enough, they may realize that their messages are never delivered or that you’re not receiving their calls. It’s also worth mentioning that if you both use iMessage and suddenly their messages are sent as regular text messages (green bubbles instead of blue), that could be another hint for them.

Lastly, remember that blocking someone on your iPhone only affects communications on that device. If you have other devices linked to your Apple ID, like an iPad or Mac, you’ll need to block them on those devices separately to prevent them from contacting you there.


  1. Open the contact or message.
  2. Tap on the name or number.
  3. Scroll down and select “Block this Caller”.

Frequently Asked Questions

Will the person know if I block them on iPhone?

No, the person will not receive a notification that they have been blocked.

Can a blocked person still see our past conversations?

Yes, blocking someone does not delete past message threads.

Is blocking on iPhone permanent?

No, you can unblock someone at any time by going to your block list in the settings.

Does blocking on iPhone also block the person on other devices?

No, you will need to block them on each device separately.

Can a blocked person leave a voicemail?

Yes, but you won’t get a notification for it, and it will be placed in a separate “Blocked Messages” folder.


Blocking someone on your iPhone should be a carefully considered decision, as it can have implications for your interactions with that person. While they won’t know directly, there are indirect signs that they might pick up on. The peace of mind and control over your privacy are the main benefits of this feature, but it’s important to remember the potential drawbacks as well. Whether you’re seeking solace from a relentless telemarketer or creating boundaries with someone in your personal life, it’s essential to understand the impact of this powerful tool at your fingertips.

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