How to Block No Caller ID Calls On iPhone

Many individuals are seeking answers to the question, “How can I block calls on my iPhone that don’t have a caller ID?” Why? Because calls with no caller ID might be annoying. So, how do you react to telemarketing calls from someone you don’t know? If it came from a big-name corporation’s HR department or a long-lost friend, we’d be all over it. If it’s a spammer, on the other hand, we’re enraged to the nth degree.

You should not lose faith because there are options for blocking caller ID on your iPhone! They’ve all come to help you. . Let’s get this celebration started.

On the iPhone, there are five effective techniques for blocking calls with no caller ID.

1. Using the Carrier’s Call Filter Service

To stop unsolicited calls, such as phishing or marketing calls, ask your carrier to enable a DND-like service. This procedure may differ from one supplier to the next. As a result, you’ll need to conduct some research or contact your network provider to get the service up and running.

Unwanted phone calls aren’t always blocked by all network providers. As a result, this isn’t an approach that can be used everywhere. Before proceeding, you’ll need to double-check the status of the service. You may always explore alternative ways to prevent caller ID calls on your iPhone. These are the ones we’ll concentrate on right now:

2. Silence unknown callers

This option, as the name suggests, prevents calls from numbers that aren’t saved in your contacts from reaching you. Unknown calls go to voicemail and are logged in the recent call list, which is a good thing. In terms of the calls, you may review them whenever you want. As a result, if you don’t have the time or patience to download third-party apps, this can be a decent solution for you.

This is how you do it:

1.Go to the Phone Settings section.

2. Scroll to the bottom of the screen and hit Silence Unknown Callers.

3. Press the “on” button on the switch.

However, an emergency or important call from an unknown number would be banned as a result of this. And it’s possible that this is something you don’t want to happen. As a result, before utilizing this function, double-check that your contact list contains all of your most critical connections.

Be warned that this strategy contains a drawback. Siri detects a “recommended contact” if you’ve sent or received many texts or phone calls from the same number. As a result, they can still contact you.

3. Permanently blocking someone using contacts

You may permanently ban any number of persons or businesses from calling you repeatedly. Here’s how to permanently block incoming calls without a caller ID, step by step.

Go to the Recents tab in the Phone app.

Find the number and tap the I key next to it.

To do so, go to the bottom of the page and select “Block this caller.”

Tap Block Contact to confirm.

To be honest, it could be a pain in the neck to block each number one by one. You may need to keep the block cycle going forever since fraudsters and marketers may call from multiple phone lines.

4.Use Focus or DND to block no-caller ID calls on the iPhone temporarily

If you merely want to quiet unknown calls for a set amount of time, such as while working, resting, or partying, Focus/DND is the perfect option.

I. Enable Focus on an iPhone running iOS 15

With iOS 15, Apple added a new and better version of DND called Focus to their mobile operating system. When you set a focus, you may now pick who goes through on the other end of the line. This is how you do it.

Select a focus in Settings > Focus.

People Called From can be tapped.

Select All Contacts from the drop-down menu.

You may also add chosen contacts by tapping + Add, Favorites. Calls from unknown numbers and persons who aren’t on your contact list will be muffled until you switch off concentration mode.

II. Enable DND on an iPhone running iOS 14

If you still have iOS 14 on your iPhone, DND is still an option. DND is similar to Focus in that it only rings your iPhone if the call has been permitted. The remainder of the room will be deafeningly quiet.

Go to the Do Not Disturb section of the settings menu.

Select All Contacts from the Allow Calls From drop-down menu.

That’s why turning on Do Not Disturb is a smart idea (DND). You may also choose to have a set of contacts displayed at the top of the list if you want to see them more often.

5. Use call-blocking apps

This is something for which there are applications! Robo Shield and Truecaller are two of the most popular call blocking apps. To enable the app, go to Settings Phone Call Blocking & Identification and flip on the button next to it.

When you receive a call from an unknown number, the app compares it to its spam caller database. If the programme discovers a match, it will identify the call and quiet it, depending on your preferences.


There are various ways to prevent no caller ID calls on iPhones, as you may already be aware. Personal preference plays a role in determining the optimal solution for your situation. To achieve the greatest results, consider combining different ways. However, before using these options, make a backup of all of your vital numbers

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