Secret Codes guide
*332*0000# on iPhone: Bar International Calls Except Home
By Muhammad Shahid · · 3 min read
Quick answer
*332*0000#: While roaming, allow calls home but block all other international dialling. Service code 332 is BOIC-exHC, Barring of Outgoing International Calls Except Those Directed to the Home PLMN Country. It only means anything while you are roaming on a foreign network.
Secret CodesDial codes, SIM & network test · Free on the App StoreDownload free →| Code | *332*0000# |
|---|---|
| What it does | While roaming, allow calls home but block all other international dialling. |
| Published for | AT&T and T-Mobile |
| Type | Support varies |
While roaming, allow calls home but block all other international dialling. This page explains what *332*0000# does, how to use it on an iPhone and which carriers it applies to.
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What does *332*0000# do?
Service code 332 is BOIC-exHC, Barring of Outgoing International Calls Except Those Directed to the Home PLMN Country. It only means anything while you are roaming on a foreign network. Calls back to the United States stay open, calls to the country you are standing in and to any third country are refused.
It was designed for exactly one problem, which is a traveller running up third country roaming charges. On US carriers with modern international day passes the economics that made this useful have largely gone, and so has the provisioning.
Replace 0000 with the call barring password.
How do I use *332*0000#?
- Open the Phone app and tap Keypad.
- Type *332*0000# exactly as written.
- Press the green Call button and wait for the result.
Which carriers does this apply to?
| Published for | AT&T and T-Mobile |
|---|---|
| Type | Support varies |
| Good to know | Almost never provisioned on US consumer accounts. Included for completeness and for iPhones carrying a foreign SIM, where it is more likely to work. |
Related call barring and sim pin codes
- *#331#: Check International Call Barring
- #332*0000#: Cancel Except-Home Barring
- #331*0000#: Cancel International Call Barring
- *#332#: Check Except-Home Barring
- *331*0000#: Bar Outgoing International Calls
- *35*0000#: Bar All Incoming Calls
See all call barring and sim pin codes or every category of iPhone codes.
How Secret Codes helps
Secret Codes keeps this and every other entry a search away. Pick your carrier once and each entry says whether it is published for your line. You can save favourites, add a private note, and record whether a code worked on your line. This entry is part of Secret Codes Pro.
Frequently asked questions
What does *332*0000# do on iPhone?
While roaming, allow calls home but block all other international dialling. Service code 332 is BOIC-exHC, Barring of Outgoing International Calls Except Those Directed to the Home PLMN Country. It only means anything while you are roaming on a foreign network.
What else should I know about *332*0000#?
Calls back to the United States stay open, calls to the country you are standing in and to any third country are refused. It was designed for exactly one problem, which is a traveller running up third country roaming charges.
What are the steps for *332*0000#?
1. Open the Phone app and tap Keypad. 2. Type *332*0000# exactly as written. 3. Press the green Call button and wait for the result.
Where do I use *332*0000#?
On the keypad of the Phone app.
Do I need to press Call after typing *332*0000#?
Yes. Type it on the Phone keypad, then press the green Call button.
Is *332*0000# a hidden or secret code?
No. It is a published service, not a hidden menu. iPhones do not have Android-style engineering menus.
Which carriers does *332*0000# work on?
It is published for AT&T and T-Mobile. Almost never provisioned on US consumer accounts. Included for completeness and for iPhones carrying a foreign SIM, where it is more likely to work.
Does *332*0000# work on Android phones too?
It is handled by the carrier or service rather than the iPhone, so it is not tied to one phone brand. Check with your carrier.
Will *332*0000# work outside the US?
It is published for US carriers and services, so do not count on it abroad. Ask your carrier before you travel.
What if *332*0000# does not work on my iPhone?
Check that it applies to your carrier first, because carriers decide which services they offer and can change them. If it should apply to your line, contact your carrier.
What is related to *332*0000#?
*#331#: Check International Call Barring. Ask whether outgoing international calls are barred.
What else is in this category?
#332*0000#: Cancel Except-Home Barring. Restore full international dialling while roaming.
Sources
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