How to Unlock Your iPhone and Use an International SIM Card

Before I get into using your iPhone abroad, I must preface this: if you are only going abroad for a week or two, or even a month, the information in this post may not apply to you.

You may be better off reading about how else you can use your iPhone abroad with WiFi and airplane mode (for shorter periods of travel). Today’s post is for those of you who are moving or will be spending many months abroad and will want a fully-functioning phone (wifi, calls, texts, everything) while you are gone.

Related: A Complete Guide to Using Your iPhone Abroad, for Dummies

This post contains affiliate links.

unlock iphone
Unlock your phone and use it with a local SIM card overseas.

What does it mean for phones to be locked and unlocked?

In the US, an iPhone is usually “locked” when you buy it through a specific carrier (i.e. Verizon, Sprint, etc.), which essentially means it will only operate with that carrier. They do this so you won’t jump ship and start using another carrier.

If you buy your iPhone through Apple directly, or through a third-party vendor (like a phone kiosk or general wireless store) it comes unlocked.

Update 2020: All [new] iPhone models are unlocked, except those purchased with AT&T installment plans.

However, many US cell phone carriers will unlock your iPhone for international use only. This will enable your iPhone to be compatible with SIM carriers in other countries. This basically means you could go abroad, purchase an international SIM card, put it in your iPhone, and use your iPhone abroad with that carrier.

It sounds simple, and sometimes it is, but it requires action on your part. Here are some helpful tips that will at least get you pointed in the right direction for using your iPhone abroad:

iphone abroad

Apple Does Not Unlock Your iPhone

Check out what Apple has to say about how to unlock your iPhone. You must do this directly through your carrier.

How to Unlock an AT&T iPhone

Check out what AT&T says about eligibility and how to unlock your AT&T iPhone.

How to Unlock a Sprint iPhone

Check out what Sprint says about eligibility and how to unlock your Sprint iPhone.

How to Unlock a Verizon iPhone

Call your customer support line and request an unlock (don’t go into the store, just call). You may need to talk to a few people before you find the right one, but they will unlock your phone for you for use abroad. See this article for more details about Verizon’s unlocking policy.

Check out the World Phone Guide for information about CDMA versus GSM networks (and why this is important).

How to Buy an Unlocked iPhone

To completely avoid having to unlock your iPhone, don’t buy it directly through a specific carrier. Buy it through Apple or at an unaffiliated kiosk or store, where you get to choose through whom you connect your service.

For example, your phone may come locked if you buy it through AT&T or Verizon. Worse yet, it may not even come with a SIM card slot. Do NOT make that mistake!

Travel Planning Tip: Order a prepaid SIM card before you travel!

Have you had experience unlocking your iPhone?

For the benefit of anyone reading this and trying to figure out how to get their phones unlocked, please share your experiences about getting your iPhones unlocked. It can take weeks to do the research and figure all of this out by yourself, so let’s try to help each other with any helpful advice!

Would you like to keep your cell phone number and have calls and texts forwarded to an international phone number/SIM card? Use Tossable Digits, which can keep your number safe for you while you cancel your service at home, and you can have calls and texts forwarded to your new number abroad. You only pay for what you use, and you can cancel anytime.

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Need an international SIM card? We suggest pre-ordering from SimOptions.

9 replies on “How to Unlock Your iPhone and Use an International SIM Card”

How can I unlock my iphone 5s outside US.? when I arrived in Kenya (East Africa)
and tried to work with my GSM USIM, it could not be recorgnized. I discovered that it was actually a locked phone. The seller however mentioned that it was unlocked globally.
A prompt error appeared to my phone; “The SIM card that you currently have installed in this iPhone s from a carrier that is not Supported under the activation policy that is currently assigned by the activation server. This is not a hardware issue with the iPhone. Please insert another SIM card from a supported carrier or request that this iPhone be unlocked by your carrier. Please contact Apple for more information”.
I have contacted Apple support and advised that I restore factory settings. Nothing happened, sim not valid error.
When I insert my SIM card It start’s saying “helo”, “olá”, etc…when i click next, it brings me to the carrier error message, there is no other options – either go back or retry, and none has worked. I have done the Restored the phone more than 6 times: with and without USIM and still have the same error.
Apple insists that the phone is unlocked. I REALLY NEED HELP!! Has anyone encountered the same problem? How did you go about it? Thank you. You may as well advise me through my email:

I am having the same issue with iphone 5s in Panama Victor
any one out there have a solution?

Hello! I have a Iphone5C from Verizon. I just called in, and they said that my phone was already “unlocked” and compatible to use a foreign SIM card. The woman informed me that most of Verizon’s newer iPhones all come “unlocked”. If you’re still worried, just call Verizon. I was only on the phone for 5 mins.

Add this for unlocking a T-Mobile iPhone.
My iPhone met eligibility requirements once I paid the equipment installment plan (EIP) off in full and had service with T-Mobile (inside the US) for 40 days. I called T-Mobile to request the unlock and was granted the unlock a few days later, I followed the instructions to complete the unlock by connecting my iPhone to iTunes (install or update to the newest version) on my laptop and performed a full backup and restore and received the “congratulations, your iPhone is unlocked” message when the restore is complete.

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