Blocking a number on a Mac is a straightforward process, but the exact method depends entirely on which application you are using to communicate. Whether you are dealing with persistent spam in Messages, unwanted interruptions in FaceTime, or intrusive calls in the Phone app, macOS provides specific tools to manage these contacts. This guide walks you through the distinct procedures for each native application.
Blocking Numbers in the Messages App
The Messages app is the most common place users need to block contacts. Fortunately, Apple has made this process intuitive and quick. You can block a number directly from an existing conversation or by accessing your contact list.
Blocking from an Open Conversation
If you are currently engaged in a chat with the person you wish to block, follow these steps. First, click on the contact name displayed at the top of the conversation window. This reveals a dropdown menu with details about the chat. From that menu, select "Info" or "Details." In the details panel that slides out from the right side of your screen, scroll down to the bottom. You will see an option labeled "Block this Caller." Clicking this button immediately prevents the person from sending you iMessages, and they will not be aware that they have been blocked.
Blocking via Contacts List
If the number is saved in your contacts or appears in a recent list, you can block it without opening a specific thread. Open the Messages app and navigate to the "Contacts" section on the left sidebar. Find the contact you want to block, right-click on their name, and select "Block." Alternatively, you can open the "Info" card for the contact by double-clicking their name and then scrolling to the bottom to hit the "Block" button.
Handling FaceTime and Phone Calls
Blocking numbers for voice calls and video chats operates differently than messaging. macOS separates these functions, requiring you to use the Phone app to manage contacts that are disturbing your calls or FaceTime sessions.
Blocking During an Active Call
If you are currently on a FaceTime or Phone call and wish to stop the interaction, the process is immediate. While the call is active, click the "i" or details icon next to the contact's name on the screen. This opens a sidebar with information about the caller. At the bottom of this sidebar, you will find the option to "Block this Caller." Confirming this action will end the current call and prevent that number from reaching you in the future through FaceTime or the Phone app.
Managing the Blocked List
To review or modify the list of numbers you have blocked, you need to access the settings of the Phone app. Open the Phone app and navigate to the "Calls" tab at the top of the window. On the left sidebar, look for a section titled "Blocked." Clicking here will display all the numbers you have restricted. If you ever wish to unblock a contact, simply select their number from this list and click the minus (-) button to remove them.
Third-Party Applications and System-Wide Solutions
While the native tools cover Apple's built-in communication apps, you might use third-party services like WhatsApp, Skype, or Google Voice. These applications manage their own block lists independent of macOS. You will need to block the number within the specific app's settings or contact menu.
Utilizing Do Not Disturb
If you are looking to block all incoming communication temporarily rather than specific numbers, the Do Not Disturb feature is ideal. You can access this by clicking the Notification Center icon in the top right corner of the screen. Toggle "Do Not Disturb" to the on position. To customize this feature further—such as allowing calls from your "Favorites" while blocking everyone else—open "System Settings," navigate to "Focus," and configure the rules to match your needs.
