There is, however, a common point of confusion: the distinction between the "Blocked Contacts" list and the "Silence Unknown Callers" feature. Many users believe they have blocked a number when they have simply toggled on the latter setting, which sends all unknown numbers to voicemail without ringing. To find truly blocked numbers, you must ignore the "Silence Unknown Callers" switch and commit to digging into the sub-menu. A blocked number never reaches your device at all; a silenced unknown caller merely fails to ring.
If you have ever blocked a telemarketer or an old contact and now need to reverse that decision, you might find yourself wondering exactly where those "hidden" numbers are stored. On an iPhone, the blocked numbers list is primarily located within the , specifically under the Phone , Messages , FaceTime , or Privacy & Security menus.
Open Settings > Apps > Phone > Blocked Contacts .
If you have found the number you wish to remove from your block list:
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