How To Make It No Caller ID On iPhone | Hide Calls Fast

To make it show No Caller ID on iPhone, turn off Show My Caller ID in Settings or use a short code like *67 or *31# before the number.

Want your iPhone calls to show up as No Caller ID instead of your phone number? Maybe you are calling a business, returning a classified ad, or just do not want your personal number shared more than needed. iPhone gives you reliable ways to hide your caller ID, but the options vary a little depending on your carrier and region.

This guide walks through practical methods to hide your number on an iPhone, from the built-in Show My Caller ID switch to per-call codes like *67. You will also see what to do when the No Caller ID setting is missing, how carriers handle privacy, and a few etiquette notes so people do not ignore your calls by default.

What No Caller ID Actually Means On iPhone

On an iPhone, No Caller ID is the label that appears when a caller has blocked their number from being shown. In that case the network passes the call through but marks the number as private, so your phone cannot display it.

That is different from an Unknown caller label. Unknown usually means the network never received a usable number in the first place, maybe because the call came from a system that does not pass caller details correctly or from a region where the information is missing. With No Caller ID, the number exists but has been hidden on purpose instead of lost in transit.

You may also see variations like Private, Anonymous, or Withheld on landlines and some mobile networks. All of these point to the same idea: the caller turned on a privacy feature before placing the call, so the receiving phone only gets a generic label.

This matters when you decide whether to answer. A No Caller ID call may come from someone who deliberately hid their number with a code such as *67, while an Unknown caller label often points to a technical limitation instead of a privacy choice. Recent coverage of these labels has underlined this difference for iPhone users who see both on their screens.

How To Make Your iPhone Show No Caller ID On Every Call

If you want every outgoing call to appear as No Caller ID, the simplest approach is to turn off your caller ID in the Phone settings. Apple describes this as hiding your caller ID, and the wording can vary slightly by country or iOS version.

Turn Off Show My Caller ID In Settings

Quick change: This method flips a single setting so all normal phone calls from your iPhone stop showing your number.

1. Open Settings — Tap the grey Settings app on your iPhone home screen.
2. Go To Phone — Scroll down and tap Phone in the list of apps.
3. Tap Show My Caller ID — Wait a moment if the page loads slowly.
4. Turn The Switch Off — When the toggle is off, your number will not appear on standard outgoing calls.

According to Apple’s caller ID help page, once this switch is off the recipient will no longer see your phone number on their screen when you call, and their phone will instead show a private or No Caller ID style label.

What If Show My Caller ID Is Missing Or Greyed Out?

Some carriers do not allow that setting to be changed from the iPhone side. In those cases you may not see Show My Caller ID at all, or the switch might appear dimmed so you cannot move it.

• Check You Have Cellular Service — Caller ID settings only load when the phone is connected to a carrier network, so test with mobile data turned on.
• Toggle Airplane Mode — Turn Airplane Mode on for ten seconds, then turn it off and open the Phone settings again.
• Update Carrier Settings — Go to Settings > General > About and wait a few seconds to see whether a carrier settings update prompt appears.
• Contact Your Carrier — If the option never appears, your carrier may control caller ID at account level and can enable line blocking for you.

Many networks offer per-line blocking, which hides your number on every call from that SIM. In some regions they also let you turn that feature on or off from your account dashboard without needing a call to customer care.

Use No Caller ID Only When You Need It

Permanent blocking suits some people, but in many situations you only want No Caller ID for a few calls. Your iPhone works well with the classic per-call codes that carriers still use, so you can decide on each call whether your number appears.

Hide Your Number For A Single Call With *67 Or *31#

Per-call block: Dial a short code, then the phone number, and that one call will go out with No Caller ID.

1. Open The Phone App — Tap the green Phone icon on your home screen or in the Dock.
2. Dial The Block Code — In many regions that is *67, while some carriers use *31# instead.
3. Add The Phone Number — Without spaces, enter the full number as you normally would.
4. Place The Call — Tap the call button and your number should be hidden only for that call.

Per-call blocking codes are defined by carriers and regulators and have been in place for years for home phones and mobiles. On modern iPhones these codes still work at the network level, so they do not depend on any extra app or setting on the device itself.

Some carriers also support extra codes such as #31# to toggle caller ID for an individual call when line blocking is already active, or *82 to show your number for a single call when it is normally hidden. If you use those features, test them with a friend first so you know exactly what the other side sees.

Save A No Caller ID Contact Shortcut

If you call the same businesses or people from a hidden number often, building a contact shortcut keeps things simple.

• Create A New Contact — In Contacts, tap the plus icon and add a name such as “Private Call”.
• Store The Code And Number — In the phone field, add *67 or *31# in front of the full number.
• Tap To Call Privately — Next time you need to call that person, start the call from this contact so the code is always included.

You can repeat this trick for several contacts, or create a few generic entries such as “Private Work Call” and edit the number as needed before placing a call.

Caller ID Blocking, Contact Blocking, And Silence Unknown Callers

Hiding your number with No Caller ID is not the same as blocking contacts or screening unknown calls. iPhone includes a few related tools that often get mixed up with caller ID blocking, so it helps to separate them.

Hide Your Number Versus Block A Number

Different goals: One feature keeps your number private, the other stops certain numbers reaching you.

• No Caller ID — Uses the Show My Caller ID setting or per-call codes so your number does not appear when you place a call.
• Contact Blocking — Uses Call Blocking & Identification settings so specific numbers cannot reach you by phone, Messages, or FaceTime.

When you hide your caller ID, your own outgoing calls change. When you block a contact, their calls to you change. You can combine both if you want, but they solve different problems.

What Silence Unknown Callers Does

Silence Unknown Callers is an extra layer that sends calls from numbers outside your contacts, recent outgoing calls, and Siri suggestions straight to voicemail. Those calls still arrive, but your phone does not ring.

• Turn It On — Go to Settings > Phone and tap Silence Unknown Callers.
• Check The Rules — Calls from your contacts and recent outgoing calls still ring as usual.
• Combine With No Caller ID — Many people use this feature, and private calls often go straight to voicemail on their phones.

If you rely heavily on No Caller ID, you may notice more calls going unanswered because a growing number of people let their iPhone filter unknown numbers for them.

Common Issues When No Caller ID Does Not Work

Sometimes you turn off Show My Caller ID or dial a block code, but people still see your number. In most cases the cause is either carrier policy or the type of number you are calling.

Check Carrier Rules And Account Settings

Most carriers honour caller ID blocking for normal phone calls, but there are exceptions. Calls to emergency numbers, some toll-free lines, and certain helplines may ignore the hidden flag so that the recipient can see the number.

• Review Carrier Help Pages — Many networks list their caller ID blocking rules and any exceptions on their websites.
• Sign In To Your Account — Look for caller ID or privacy sections where you can switch line blocking on or off.
• Ask About Per-Line Blocking — You can often add a permanent hide setting to your line at account level for extra reliability.

Regulators and carriers describe how caller ID privacy choices sit beside safety rules, such as allowing emergency services or some service numbers to see who called even when the caller tried to hide their number.

Test Different Numbers And Lines

If one person still sees your number, but another person does not, the issue may lie with their phone or their carrier.

• Call A Second Test Number — Ask a friend on a different network to confirm what they see when you call with No Caller ID enabled.
• Try A Landline — Some mobile apps override caller ID settings, but standard landline phones usually show the network label correctly.
• Check For Call Apps — On your own iPhone, see whether call recorder or spam filter apps are changing how calls are placed.

If every test still shows your number, it strongly suggests your carrier ignores the settings on your device and controls caller ID entirely from its side.

Refresh Network Settings On Your iPhone

Occasionally, network settings on the phone drift out of sync, which can cause odd issues with caller ID.

• Restart The iPhone — Power the device off, wait ten seconds, then turn it back on and try another test call.
• Update To The Latest iOS — Go to Settings > General > Software Update and install any available updates.
• Reset Network Settings — As a last resort, use Settings > General > Transfer or Reset > Reset Network Settings. This clears Wi-Fi and cellular settings, so you will need to rejoin Wi-Fi networks afterward.

Most caller ID problems eventually trace back to carrier policy instead of iOS bugs, but keeping your software and network settings fresh removes extra variables while you test.

Legal And Practical Limits Of No Caller ID

No Caller ID is a privacy feature, not a way to hide from the law. In many regions, emergency services and some regulated numbers can still see the line that called them even when caller ID is blocked, and carriers log that data for billing and safety.

Consumer regulators and telecom agencies also warn about abuse of caller ID blocking and spoofing. The FCC guidance on caller ID and spoofing explains how privacy tools sit beside rules that fight scam calls and fake identities.

On the practical side, plenty of people decline calls from hidden numbers by default, especially as spam and robocalls have increased. If you want someone to pick up, you may get better results by showing your number once you have built some trust with that person or organisation.

Quick Reference: Ways To Make It No Caller ID On iPhone

Here is a short reference table you can scan before you place a call from your iPhone with No Caller ID.

Method	Scope	When To Use It
Turn Off Show My Caller ID	All outgoing calls	Daily privacy when you rarely need people to see your number
Dial *67 Or *31# Before Number	Single call	Occasional hidden calls to businesses or new contacts
Ask Carrier For Line Blocking	All calls from that line	Extra control when the iPhone setting is missing or unreliable

Once you know which option matches your situation, making it show No Caller ID on iPhone turns into a quick habit. Set a permanent rule in Settings or through your carrier if you want steady privacy, or rely on per-call codes when you only need to hide your number once in a while.