How do I block outgoing calls on a Samsung phone?

Open the Phone app, tap the three dots, then Settings → Supplementary services → Call barring → Voice call, turn on All outgoing calls, and enter the barring password (try 0000 first). To allow only certain numbers instead, use Fixed dialling numbers in the same Supplementary services menu with your SIM's PIN2.

Where is call barring on a Samsung Galaxy?

Phone app → More options (three dots) → Settings → Supplementary services → Call barring. If Supplementary services is not listed, your operator does not offer the service on your SIM.

Does Samsung's Block numbers stop me from calling a number?

No. Block numbers only rejects calls and messages that come in from the blocked number. You can still dial it. To stop the outgoing call you need call barring (all calls), Fixed dialling numbers (allow-list), or a per-number outgoing blocker such as NoDial.

What is the call barring password on Samsung?

It is set by your operator. Samsung suggests trying 0000; if that fails, ask your operator, because repeated wrong attempts can lock the service on some networks.

Can I block outgoing calls to just one number on a Galaxy?

Not with the built-in settings. Call barring works by category and Fixed dialling numbers is an allow-list. NoDial blocks the specific numbers you choose, always, on set days and hours, or after a set number of calls, and leaves the rest of the phone alone.

Does call barring on a Samsung block video calls as well?

Only if you switch it on there too. Call barring on One UI has separate Voice call and Video call tabs, each with its own switches. Barring outgoing voice calls leaves outgoing video calls alone.

What is the code to block outgoing calls on a Samsung?

Dial *33*password# and press call to bar all outgoing calls; #33*password# turns it off and *#33# checks the status. The password is your operator's four-digit barring password, often 0000 by default. Not every operator accepts the codes from the phone.

Will call barring or FDN block emergency calls on my Samsung?

No. Both leave emergency numbers callable. NoDial also refuses to add emergency numbers to its block list.

How to Block Outgoing Calls on a Samsung Galaxy: Barring, FDN, and One Number (2026)

NoDial Editorial ／ 2026-09-22

Samsung ships its own Phone app, so the settings for stopping outgoing calls are not where a Pixel puts them, and the menu names are Samsung's own. This guide is written for a Galaxy running One UI. It covers the two built-in tools that actually restrict calls you make (call barring and Fixed dialling numbers), explains why the Block numbers screen is not one of them, mentions the parental option Samsung offers, and shows the one method that blocks calls to a single number while everything else on the phone keeps working. Each section gives the exact taps, what the tool blocks, and how to undo it.

Steps are current as of September 2026 and follow Samsung's One UI menu names. Wording varies slightly by model, One UI version, and operator. Call barring and FDN depend on your mobile operator's SIM.

1. The short answer

On a Samsung Galaxy there are two built-in ways to stop outgoing calls, both under Phone → ⋮ → Settings → Supplementary services:

Call barring — blocks whole categories of calls (for example "All outgoing calls" or "International calls") at your operator's network. Needs a four-digit barring password.
Fixed dialling numbers — lets the phone call only the numbers on an approved list stored on the SIM. Needs PIN2.

The Block numbers screen, which is the first thing most people find, only stops calls and messages coming in. It never stops you from dialing out. And neither built-in tool can block outgoing calls to one number while the rest of your phone works normally; for that you need a per-number outgoing call blocker such as NoDial.

KEY POINT

On a Galaxy, "block" means incoming. The outgoing tools are called call barring and Fixed dialling numbers, and both live under Supplementary services, not under Block numbers.

2. Where Samsung hides these settings: Supplementary services

Samsung groups everything that is really a service on your operator's network under one menu. Open the Phone app, tap More options (the three vertical dots, top right), tap Settings, and then tap Supplementary services. Samsung's own help pages list what lives here: call forwarding, call waiting, "Show my caller ID", and Fixed dialing numbers. Call barring appears in the same list when your operator supports it.

Two things to know about this menu. First, a dual-SIM Galaxy may ask you to pick the SIM before it shows the options. Second, the whole Supplementary services entry can be missing if your operator does not support these services on your plan; section 9 covers that.

Where each tool lives in Samsung's Phone app. Only the two yellow boxes affect calls you make. Call barring appears under Supplementary services only when your operator supports it.

3. Method 1 — Call barring on a Galaxy

Call barring is a network service defined in the GSM standard. It blocks categories of calls before they connect: all outgoing calls, international calls, international calls except to your home country, all incoming calls, and incoming calls while roaming. The category most people want for stopping calls out is All outgoing calls. It does not block emergency numbers, and it does not know or care which number you dialed.

To turn it on:

Open the Phone app and tap the three dots (⋮) in the top right.
Tap Settings → Supplementary services → Call barring.
Tap Voice call (some models skip this step; on a dual-SIM phone pick the SIM first).
Turn on the category you want, for example All outgoing calls.
Enter the call barring password and confirm. The usual default is 0000; if that is refused, the password has been set by your operator and you need to ask them.

To turn it off: return to the same screen, switch the category off, and enter the password again. The change is immediate.

Voice call and Video call are separate

On current One UI phones, Call barring opens on two tabs, Voice call and Video call, and each has its own set of switches for outgoing calls, incoming calls, and incoming calls while roaming. Barring outgoing voice calls does not bar outgoing video calls, and the reverse is also true; if you want both stopped, switch both tabs. The password is the same on both tabs. It is a network password issued by your operator, which is why neither your screen lock nor your Samsung account password will be accepted here.

The dialer codes work on a Galaxy too

Because barring is a GSM network service, the standard codes work from Samsung's dialer exactly as they do on any other phone, and they are handy when the menu is missing or slow to respond:

*33*password# then the call button — turns on barring of all outgoing calls.
#33*password# — turns it off.
*#33# — shows whether it is currently on.

Not every operator accepts these codes from the handset. If the phone replies with an error such as "Connection problem or invalid MMI code," the service is not available on your SIM or the password is wrong.

Call barring works at the network, so it survives restarting the phone or swapping the Phone app, and it stops every outgoing voice call while it is on. What it cannot do is target a single number, run on a schedule, or count calls. The full picture, including the standard dialer codes (*33*, #33#) and what to do when barring refuses to switch, is in our guide to call barring on Android. If your goal is to stop every call for a while, the options are compared in how to block all outgoing calls on Android.

WHEN IT FITS

You want a phone or a line to stop making calls out, in bulk, and you hold the password. Cost control and managed lines are the typical cases.

4. Method 2 — Fixed dialling numbers (FDN) on a Galaxy

Fixed dialling numbers is the opposite logic: an allow-list. When FDN is enabled, the phone can only call the numbers on the FDN list stored on the SIM card, plus emergency numbers. Samsung describes it as limiting outgoing calls to predefined numbers, "ideal for parental control". Incoming calls are not affected.

To turn it on:

Open the Phone app, tap the three dots (⋮), then Settings → Supplementary services → Fixed dialling numbers. On a dual-SIM phone, pick the SIM first.
Add the numbers that should remain callable to the FDN list (the exact label varies by model). Changes to the list are protected by PIN2.
Go back and tap Enable FDN, enter your operator-provided SIM PIN2, and tap OK.

To turn it off: return to the same screen, tap Disable FDN, and enter PIN2.

PIN2 is a second SIM code, not the PIN you type at startup. Some operators ship it as 0000; others issue it on request. Samsung's own warning is worth repeating: entering PIN2 wrong can lock your SIM, and unlocking it needs the PUK2 code from your operator, or in the worst case a new SIM. Because FDN is an allow-list, using it to block just one number would mean listing every other number you might ever call, which is not practical on a personal phone. The details, including PUK2 and the everyday inconveniences, are in our guide to Fixed Dialing Numbers on Android.

WHEN IT FITS

Someone else controls what the phone may call: a child's Galaxy, a work handset, a phone handed to a relative. The person holding PIN2 owns the list.

5. What Samsung's Block numbers screen does, and does not do

Phone → ⋮ → Settings → Block numbers is where you add a number so its calls no longer reach you. You can type a number, pick one from Recents or Contacts, and switch on Block calls from unknown numbers. Samsung's help pages title this feature "block incoming calls", and that is exactly its scope: calls and messages from a blocked number are rejected. Samsung's Smart Call, where your operator supports it, adds a spam flag on the incoming-call screen.

None of this touches the outgoing side. Add a number to Block numbers, then dial it, and the call goes through as usual. The word "block" makes people assume it works both ways; on a Galaxy, as on every Android phone, it does not. The exact taps for Pixel and Samsung, blocking texts, and blocking unknown callers are in how to block a number on Android.

THE TRAP

Block numbers = incoming only. If you are trying to stop yourself from calling a number, this screen will not help, no matter how many times you add the number.

6. Samsung Kids, Modes and Routines, and other settings that sound related

Samsung Kids

If the phone belongs to a child, Samsung has a purpose-built answer. Samsung Kids is a walled environment on Galaxy phones and tablets where a parent chooses which apps and which contacts the child can use; Samsung describes it as giving access to specific contacts and apps, with a daily playtime limit and a usage report. In practice that means the child can only reach the people you approved while Samsung Kids is running. It is a parental tool, not a self-control tool: the parent can open and close it at any time, and it is not designed for an adult's own phone.

For a child's phone that must reach only a few numbers even outside Samsung Kids, FDN in section 4 is the SIM-level version of the same idea.

Modes and Routines

Galaxy phones on One UI 5 and later have Modes and Routines under Settings. Samsung describes Routines as running preset actions when conditions are met, with examples like waking up, commuting, preparing for sleep, driving, and travelling abroad, and Modes as scenario presets such as Sleep, Work, and Driving. They change the phone's own settings: sound, notifications, display, which apps are quiet. Nothing in Samsung's description of the feature blocks or restricts the calls you place, and there is no "outgoing call" action to pick. A Sleep mode can keep the phone quiet at night; it cannot stop you dialing a number at night.

Digital Wellbeing

Digital Wellbeing, which ships on Galaxy phones as on Pixels, offers app timers: a daily time budget for an app, after which the app closes and its icon dims. A timer on the Phone app limits minutes of use, not calls, and cannot tell one number from another. Its Focus mode pauses whole apps on a schedule. If what you want is a time-of-day rule for a number, the comparison of these built-in schedules with a real outgoing-call schedule is in how to block outgoing calls only at certain hours.

A USEFUL TEST

Ask of any Samsung setting: does it decide anything at the moment you press the call button? Block numbers, Modes and Routines, and Digital Wellbeing do not. Call barring, FDN, and a per-number blocker do.

7. Method 3 — Blocking calls to one number with NoDial

Everything so far is either a category switch (call barring) or an allow-list (FDN, Samsung Kids). The one thing none of them does is the thing people search for most on a Galaxy: block outgoing calls to a specific number while every other call, text, and app keeps working.

That needs an app that uses Android's call-redirection role, which lets one chosen app see each outgoing call at the moment you place it and end the ones you asked it to end. It runs on Samsung phones the same way it runs on a Pixel, because the role is part of Android itself, not of Samsung's Phone app. How that role works and what to look for when comparing apps is covered in our guide to outgoing call blocker apps on Android.

NoDial is built for this. You register the numbers you have decided not to call; calls to them end before they connect, and your contacts, incoming calls, and Samsung's own settings are left untouched. For each number you choose how it is blocked:

Always — blocked at all times.
On set days and hours — for example only during working hours or only late at night.
With a call limit — a set number of calls per day, week, or month; the weekly count resets on Monday.

Two design choices matter here. First, turning blocking off for a number takes effect one hour later, and turning it on is instant. That hour is deliberate: a rule you set calmly should not be undone in the moment you most want to break it. Second, emergency numbers can never be added to the block list. There is no barring password and no PIN2 to lose, and nothing on the SIM changes. On the Premium Unlimited plan NoDial can also block all outgoing calls from the home screen, which gives you a call-barring-style switch with the same one-hour delay. If the person you are trying to stop is you, the step-by-step approach is in how to stop yourself from calling someone.

8. Side-by-side comparison

	Block numbers	Call barring	Fixed dialling numbers	Samsung Kids	NoDial
Where on the Galaxy	Phone → Settings → Block numbers	Phone → Settings → Supplementary services	Phone → Settings → Supplementary services	The Samsung Kids app	The app
Direction	Incoming only	Outgoing (and incoming categories)	Outgoing	Outgoing and incoming, inside Kids mode	Outgoing
Logic	Rejects a number's calls to you	Whole categories	Allow-list on the SIM	Allow-list of contacts and apps	Block-list of the numbers you chose
Block one number you dial?	No	No	Not practically	Only by approving everyone else	Yes
Code needed	None	Barring password (try 0000)	PIN2	Parent's lock	None
Schedules or limits	No	No	No	Daily playtime	Days and hours, or calls per period
Undo	Instant	Instant with password	Instant with PIN2	Instant, by the parent	One hour later
Built for	Unwanted callers	Cost control, managed lines	A child's or work phone	A child's phone	Stopping your own calls

9. Troubleshooting on a Galaxy

No Supplementary services entry. Contact your operator: some operators do not offer these services on a given plan, and the menu simply does not appear. Check that you have a SIM inserted and, on a dual-SIM phone, that you selected the right one.
Call barring is there but refuses the password. 0000 is only a default. The password is issued and reset by your operator, not by Samsung, so if 0000 and any password you were given are rejected, ask your operator to reset it. Some networks lock the service after a few wrong attempts, so stop guessing after the second try.
The switch flips back, or the phone shows a connection error. A barring change is a request to the network. If the network refuses it, the switch returns to its previous state or the phone reports "Connection problem or invalid MMI code." That usually means the service is not provisioned on your SIM, or you are out of coverage. Try again with signal, then ask your operator.
You turned barring on and now cannot turn it off. It is the same password in both directions. If the password no longer works, the operator can reset it or remove the barring from their side. A factory reset of the phone does not help, because the barring lives on the network, not on the phone.
Fixed dialling numbers asks for PIN2 you do not know. Do not guess; Samsung's own warning is that a wrong PIN2 may lock the SIM. Your operator can tell you the PIN2. On some networks the default is 0000, but that is not universal.
PIN2 is already locked. The phone will ask for PUK2, which only your operator can give you. Enter that wrongly too many times and the SIM may have to be replaced, so make the call to your operator before typing anything.
You only want to block one number. Nothing in the Samsung menus does this. A per-number outgoing blocker is the tool; the comparison with the built-in options is in how to block outgoing calls to a specific number on Android.

10. FAQ

How do I block outgoing calls on a Samsung phone?: Open the Phone app, tap the three dots, then Settings → Supplementary services → Call barring → Voice call, turn on All outgoing calls, and enter the barring password (try 0000 first). To allow only certain numbers instead, use Fixed dialling numbers in the same Supplementary services menu with your SIM's PIN2.
Where is call barring on a Samsung Galaxy?: Phone app → More options (three dots) → Settings → Supplementary services → Call barring. If Supplementary services is not listed, your operator does not offer the service on your SIM.
Does Samsung's Block numbers stop me from calling a number?: No. Block numbers only rejects calls and messages that come in from the blocked number. You can still dial it. To stop the outgoing call you need call barring (all calls), Fixed dialling numbers (allow-list), or a per-number outgoing blocker such as NoDial.
What is the call barring password on Samsung?: It is set by your operator. Samsung suggests trying 0000; if that fails, ask your operator, because repeated wrong attempts can lock the service on some networks.
Can I block outgoing calls to just one number on a Galaxy?: Not with the built-in settings. Call barring works by category and Fixed dialling numbers is an allow-list. NoDial blocks the specific numbers you choose, always, on set days and hours, or after a set number of calls, and leaves the rest of the phone alone.
Does call barring on a Samsung block video calls as well?: Only if you switch it on there too. Call barring on One UI has separate Voice call and Video call tabs, each with its own switches. Barring outgoing voice calls leaves outgoing video calls alone.
What is the code to block outgoing calls on a Samsung?: Dial *33*password# and press call to bar all outgoing calls; #33*password# turns it off and *#33# checks the status. The password is your operator's four-digit barring password, often 0000 by default. Not every operator accepts the codes from the phone.
Will call barring or FDN block emergency calls on my Samsung?: No. Both leave emergency numbers callable. NoDial also refuses to add emergency numbers to its block list.

11. Summary

SUMMARY

On a Samsung Galaxy, outgoing calls are restricted under Phone → Settings → Supplementary services: call barring stops whole categories with a password, and Fixed dialling numbers allows only a SIM list with PIN2. Block numbers is incoming only. To block calls to one number while everything else keeps working, use a per-number outgoing blocker.

Call barring: Supplementary services → Call barring → Voice call → All outgoing calls. Password from your operator, 0000 is only a default.
Fixed dialling numbers: Supplementary services → Fixed dialling numbers → FDN list, then Enable FDN with PIN2. Wrong PIN2 can lock the SIM.
Block numbers and Smart Call handle unwanted incoming calls, nothing outgoing.
Samsung Kids approves specific contacts and apps for a child.
NoDial blocks the numbers you chose, on a schedule or with a limit, with a one-hour delay before unblocking. First number free.

NoDial — block the numbers you chose on your GalaxyOutgoing calls only. No barring password, no PIN2. First number free.

Sources

Samsung Support (US), "Calling features on your Galaxy phone" (Supplementary services menu; Fixed dialing numbers → Enable FDN with carrier-provided PIN2; warning that a wrong PIN2 may lock the SIM) samsung.com
MakeUseOf, "What Is Call Barring on a Samsung Phone and How Do You Use It?" (Phone → Settings → Supplementary services → Call barring → Voice call; default password 0000) makeuseof.com
Samsung Support (US), "Block a phone number or contact on your Galaxy phone" (Phone → Settings → Block numbers; Smart Call for unknown numbers) samsung.com
Samsung Support (Gulf), "How to block incoming calls on a Galaxy phone" (Block numbers is an incoming-call feature) samsung.com
Samsung, "Samsung Kids" (access to specific contacts and apps, daily playtime, usage report) samsung.com
EE device guide, "Turning fixed dialling on your Samsung Galaxy S22 Ultra on or off" (only selected numbers and emergency calls; incoming calls not affected; default PIN2 0000 on EE) deviceguides.ee.co.uk
TechBone, "Samsung Call Barring: Turn On or Off" (Voice call and Video call as separate categories; the password is a network password issued by the carrier) techbone.net
Samsung Support (Jordan), "How to use Routines on your Samsung Galaxy device" (Routines run preset actions when conditions are met; no call-restriction action) samsung.com
Google Android Help, "Manage how you spend time on your Android phone with Digital Wellbeing" (app timers; Focus mode) support.google.com
Wikipedia, "Fixed Dialing Number" (emergency numbers exempt; PIN2) en.wikipedia.org
ETSI, GSM 03.88 "Call Barring (CB) supplementary services – Stage 2" (the barring categories) etsi.org
Android Developers, "CallRedirectionService" (the system role an app uses to modify or cancel outgoing calls) developer.android.com

Operators change their defaults and Samsung renames menus between One UI versions. Check your operator's or Samsung's help pages if a step does not match what you see.