Hide Your Number on Samsung: Caller ID Never

This guide shows you how to stop your phone number from appearing on the recipient’s caller ID when you make calls from a Samsung Galaxy device. You’ll learn how to set your outgoing calls to “Hide number” (also called “Caller ID: Never”) using the built-in Phone app, and what to do if your carrier doesn’t support it.

What You’ll Need

A Samsung Galaxy phone (any model running One UI 4 or later, though the steps are similar on older versions).
Your device must be connected to your carrier’s network (Wi-Fi calling may behave differently).
Your carrier must allow caller ID blocking. Most do, but some prepaid or business plans may not.

Step-by-Step

Open the Phone app. Tap the phone icon on your home screen or in the app drawer. It’s usually green with a white phone handset.
Tap the three-dot menu. In the top-right corner of the screen, you’ll see three vertical dots. Tap them to open a dropdown menu.
Select “Settings.” From the dropdown, choose “Settings.” This opens the call settings menu.
Find “Supplementary services” or “Caller ID.” Scroll down until you see “Supplementary services” (on newer One UI versions) or “Caller ID” (on older versions). Tap it.
Choose “Hide number.” You’ll see three options: “Show number,” “Hide number,” and “Network default.” Select “Hide number.” A confirmation popup may appear—tap “OK” or “Apply.”
Verify the setting. After selecting, the option should now show “Hide number” as active. You can test by calling a friend or a secondary phone—they should see “Unknown” or “Private Number” instead of your actual number.

Common Mistakes

Choosing “Network default” instead of “Hide number.” “Network default” means your carrier decides—which often shows your number. You must explicitly pick “Hide number.”
Not saving the change. On some Samsung models, after tapping “Hide number,” you need to tap “Back” or “Save” at the top of the screen. If you just close the app, the change might not stick.
Assuming it works for all calls. The setting applies to regular cellular calls. It may not affect calls made through third-party apps (WhatsApp, Skype) or Wi-Fi calling if your carrier routes those differently.
Forgetting to check per-contact settings. If you have a specific contact marked as “Always show number,” that overrides the global setting. Check the contact’s details for any caller ID override.

Tips

Use the per-call code. If you only want to hide your number for a single call, dial #31# before the number (e.g., #31#1234567890). This works on most carriers without changing your default settings.
Check with your carrier. Some carriers block the “Hide number” feature on certain plans. A quick call to customer service can confirm whether it’s available.
Remember emergency calls. Caller ID blocking does not apply to emergency numbers (like 911 or 112). Your number is always transmitted for safety reasons.
Test with a friend. Before relying on the setting, make a test call to a friend and ask what they see. This avoids surprises later.
Wi-Fi calling considerations. If you use Wi-Fi calling, the setting may not work consistently. Try disabling Wi-Fi calling temporarily to see if that’s the issue.

Troubleshooting

Setting not saving: If the “Hide number” option reverts to “Network default,” your carrier may be overriding it. Contact your carrier to enable caller ID blocking on your line.

Recipient still sees your number: First, verify the setting is actually set to “Hide number” (not “Network default”). Then make a test call. If it still shows, try restarting your phone. If that fails, your carrier might not support the feature—call them.

Option missing entirely: On some Samsung devices, the “Supplementary services” menu may not appear if your SIM card doesn’t support it. Try inserting a different SIM or contact your carrier to ensure the feature is provisioned.

Works for some calls but not others: Check if the issue happens with contacts that have a custom ringtone or caller ID override. Also, if you’re using a dual-SIM phone, make sure you’re setting the option on the correct SIM (the one you use for outgoing calls).

After a software update, the setting changed: Samsung updates sometimes reset call settings. Re-check the setting after major updates (One UI updates, Android version upgrades).

Frequently Asked Questions

Will hiding my number affect text messages?

No, this setting only affects voice calls. SMS/MMS messages still show your number.

Can I hide my number for specific contacts only?

Yes, you can set per-contact caller ID override. Open the contact, tap Edit, then “More options” (three dots), and select “Caller ID and call waiting.” Choose “Hide number” for that contact.

Does the recipient see “Unknown” or “Private Number”?

It depends on their phone and carrier. Most phones display “Unknown” or “Private Number.” Some carriers may show “Blocked” or “No Caller ID.”

Will this work when calling internationally?

Generally yes, but some international carriers may ignore the request. It’s best to test with a known international number.

Can I still call emergency services with my number hidden?

Yes, emergency calls always transmit your number regardless of this setting. It’s a legal requirement in most countries.

What if I want to show my number again?

Go back to the same settings and choose “Show number” or “Network default.” You can also dial *31# before a number to override the hide for a single call.

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.

More cards in this drawer

The whole Numbers and Powers drawer →