You cannot block one Unknown Caller (No Caller ID), however you deserve to turn on do Not harass manually and collection it to "Only enable calls from your contacts list." The call blocking function may not affect phone calls make or obtained via third-party apps set up on her device. Please call third-party app developers for help with such applications.

You are watching: How to block caller id on iphone 6

Learn much more from the Apple support articles: Block calls and also block or filter messages on her iPhone and also Use carry out Not annoy on her iPhone.

Block or unblock recent callers


From the house screen, select the 
*
 Phone app.BLOCK A CALLER: select the Recents tab then select the Info icon next come the call or call number you desire to block. 
*
Scroll to and also select Block this Caller, then select Block call to confirm. 
*

UNBLOCK A CALLER: indigenous the desired contact screen, scroll to and also select Unblock this Caller.
*

Manage blocked numbers through Settings


VIEW blocked NUMBERS: From the residence screen, pick the 
*
 Settings App > scroll to and select Phone > Blocked Contacts.
*

BLOCK A CONTACT: From the blocked screen, choose Add New... then pick the wanted contact the you would like to block.
*

UNBLOCK A CONTACT: Select Edit. Select the 
*
Remove icon beside the desired call then select Unblock to confirm. Once finished, select Done.
*

Did you acquire the aid you needed?


Yes
No

Great! We're so glad we might help.

What worked? noþeles we can improve? (Optional)
0/500
SubmitCancel

We're sorry the didn't fix your issue.

What could we have actually done to assist you better?

0/500
SubmitCancel

Thanks for your feedback!


Additional support


Apple
Visit your machine manufacturer's website.


Apple community
FAQ's, forums, and more.

See more: How Old Was Sawyer Sweeten When He Died, Sawyer Sweeten Dead Of Suicide At The Age Of 19


User manual
Here's her device's finish instructions, specs and also more.