How To Check if your Phone is Unlocked

An unlocked cell phone means that you can travel internationally or use your phone on different carriers. Your phone will accept a SIM card from another network (in most cases) or another provider and you can make calls, surf the web, send texts as you normally would.

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If you’d like to use another carrier’s SIM card in your cell phone, you can verify that it is unlocked. Once unlocked, the phone is yours to do with as you please, but until then, you’ll be stuck with the original network provider.

Why Lock a Smartphone?

While it certainly made sense that a carrier would want to lock down the features of their specific models, it made reselling or refurbishing smartphones a difficult process for anyone who wasn’t a high-level tech genius, resulting in tons of smartphone waste.

Most carriers will sell you devices on an installment or leasing program. Until that phone is paid off, it will be locked to that company’s network. Older phones were not always compatible with other carriers because they featured carrier-specific attributes.

As the years have gone by, more and more phones are offered as unlocked, meaning they aren’t synchronized with any particular carrier. Having an unlocked phone, however, doesn’t automatically mean you can use any phone on any network. A bit of information gathering will save you from frustration, so be sure to learn the device’s history and which carrier originally locked it.

Your carrier can unlock your phone for you once certain criteria are met, or you can purchase an unlocked device. It’s safer to purchase an unlocked device directly from the manufacturer but you can find these cross-compatible cell phones at a lower price on eBay and other third-party seller sites.

Since not all phones ship unlocked from the Original Equipment Manufacturers (OEMs), it’s important to know whether or not an existing device works outside of the current carrier.

What Is the Advantage of an Unlocked Phone?

Locking or unlocking a phone doesn’t make any difference in installing applications or performing normal smartphone tasks like sending text messages, placing phone calls, and browsing the web. That said, there are other differences between an unlocked and locked device.

While Apple handles updates for all its phones directly, Android updates are typically pushed out by the carrier after the manufacturer has finished building the software for the device. This means that, on occasion, OS updates for Android devices can get caught up in “carrier testing,” while unlocked devices and devices on other carriers have already finished the update.

This is primarily a problem with Android. Apple’s share of the market is so powerful that it can essentially bypass the restrictions of carriers like Verizon and AT&T. Android manufacturers largely don’t have that kind of clout with carriers; they need to sell their devices in stores to make money on their devices and are willing to load their phone with carrier-branded apps and sponsored bloatware that many Android fans are used to uninstalling or disabling on their device.

The only Android OEMs with the same kind of power as Apple are Samsung and Google’s Pixel lineup, though even Samsung tends to fall behind carrier lines. In a positive development, Samsung does seem to be working towards a more Apple-like agreement with carriers—the S8 and S8+, along with the Note8, all shipped without any carrier branding—but they still allow manufacturers like AT&T and Verizon to install DirecTV and Go90, respectively.

We should also mention that unlocked devices don’t always have improved support over the carrier models. The unlocked versions of both the Galaxy S7 and S7 Edge were, infamously, left behind on the Android 6.0 Marshmallow operating system for months longer than the carrier models, finally receiving the update in May of 2017.  Carrier models began to receive the update in January, and even the Verizon model (notoriously the slowest of the four service providers nationwide) was updated to the Nougat operating system in March.

Overall, if you’re an Apple devotee, the only difference between an unlocked and locked iPhone is the ability to use your device on alternate carriers. On Android, software updates will arrive at different times, and your device will include pre-installed software that may or may not be of interest to you.

You might have carrier branding on the back (or, in some cases, front) of your device, though some manufacturers are finally starting to move away from that. And of course, you’ll be able to easily use your device on your carrier of choice, while still being able to take advantage of features such as WiFi calling and HD Voice.

How Do I Know If My Phone Is Unlocked?

If you bought your phone through a carrier, either on a two-year contract or a monthly payment plan, your phone is locked to the original carrier, even if it does support other carriers. Since you’ve made a contract with that carrier, either through the signing of a contract or (more common these days) through a payment plan, you’ll have to stick with that carrier until the contract is up or the plan has been paid off. You can do the latter at any time, and once your device is paid for, if your phone is SIM unlocked, you can use it on your carrier of your choice.

Of course, that’s the major question: how can you tell if your device is SIM unlocked once it’s been paid off? Well, the answer depends on what phone you’re using and whether or not it’s designed to be used on multiple carriers. Let’s take a deeper look.

Is my iPhone Unlocked?

If you’re an iOS user, the answer is pretty simple. Either you bought your device straight from Apple (either for full price or through their iPhone Upgrade Program), through a third-party like Best Buy (assuming the seller did not have a carrier agreement prior to purchasing), or through your carrier.

If you purchased your device from Apple, you had the choice to either buy a model from a pre-selected carrier or to purchase an iPhone without a SIM card. If you chose the latter, your device is already unlocked, and you can use any SIM card with your device and pick up a full signal on any carrier.

Pre-selected carrier models from Apple, along with models bought from both Best Buy and carriers all include a SIM card pre-inserted into your device. These iPhones are, for the moment, technically locked to your carrier—but they can almost always be unlocked with little effort on your part.

How to check if your phone is unlocked-2

If you don’t remember whether you purchased an unlocked or carrier-specific iPhone, iOS makes it easy to check whether your device is still locked. Dive into the Settings menu on your phone, select “Cellular,” then select “Cellular Data Options.” Here, your device will either display an option for “Cellular Data Network,” which would allow you to select the carrier of your choice, or it won’t, in which case, your iPhone is currently locked.

Alternatively, you can simply power down your phone, place the new SIM card for your new carrier into the SIM tray on the side of the iPhone, then power the device back on. Try to place a phone call or use mobile data to see if your device supports your carrier. If it does, you’re all set to use the device on another network. If it doesn’t, don’t worry—all iPhones can be unlocked by the carrier.

Is My Android Phone Locked?

As with iOS, the easiest way to check if your Android device is unlocked is to simply throw a SIM card from an alternate carrier into your device to test whether the phone works or not. Typically, if you bought your phone through a carrier (as most Android users do) or through a reseller and the listing did not specifically say the phone was unlocked, your phone is probably locked. If you’re on a contract or a payment plan, your device is probably locked to your carrier for the time being.

Switching Carriers

Although your phone is unlocked, it may not work properly with another carrier. There are several reasons your phone, or a phone you’re purchasing won’t work.

  • Blacklisted – Before buying a phone check that the IMEI isn’t blacklisted. A blacklisted phone is one that’s reported stolen or lost and therefore will not activate on any carrier.
  • CDMA vs. GSM – Some models still aren’t cross-network compatible. The AT&T/T-Mobile (GSM) iPhone X isn’t compatible with the Verizon or Sprint Network (CDMA).

You should also take note that certain features will not work properly if the phone was purchased from a GSM carrier and activated on a CDMA carrier and vise versa.

Is My Phone Compatible with Another Carrier?

Each of the four top carriers allows you to check your current IMEI on their website. If you’re currently a Verizon customer looking to go to Sprint, you can visit the Sprint Website, input your IMEI and it will tell you if your device will work or not.

To check your IMEI compatibility visit the website of your choice:

Pre-paid users can check their IMEI’s using the new carrier’s website of their choice as well. Whether you’re going to Boost, Straight Talk or another provider simply visit that company’s website to check for compatibility.

How to Find My IMEI

If you aren’t familiar with your phone’s IMEI number there are a few ways to find it on both Android and Apple devices.

The SIM Tray – Look in the SIM tray, assuming that it’s the original component with the device you will see it along the side although it will be very small so grab a magnifying glass.

The Settings – iPhone users can use Settings>General>About to find their IMEI. Android users can go to Settings>About Phone.

The Back of Your Device

Older model Androids and iPhones listed the IMEI on the back of the device. If there, it will be located near the bottom of your phone (assuming you haven’t replaced the back of your phone. Much older models listed the IMEI under the removable battery.

How Can I Unlock My Smartphone?

If your device has the capability to pick up various networks beyond the one it was designed for and sold through, then yes, once your phone is paid off, you’re free to stick any SIM card you’d like into your device.

Here’s what all four national carriers have had to say on whether the devices purchased through their carrier stores (or through resellers like Best Buy) support other carriers.

Is my Verizon phone unlocked?: Surprisingly, Verizon has been pretty relaxed about customers keeping smartphones unlocked on the carrier. All devices sold through Verizon have a 60 day locked waiting period after activation, but will then be unlocked.

Verizon will even allow you to switch the SIM card in the device out for another carrier while under contract (of course, you’ll still have to pay your monthly Verizon bill). There’s no number to call or unlocking code to enter—almost every device sold through the carrier can be used without any effort on your part. Verizon had a history of being one of the more locked-down carriers of the 2000s before the launch of their LTE network, so their total 180 on unlocking devices is refreshing and welcomed.

Is my AT&T phone unlocked?: Following this link will let you check your unlock status and availability.  The general policy is that you can use any device purchased through AT&T on another carrier as long as the device supports it. Unfortunately, you’ll have to jump through a couple of hoops to get there.

Your device’s IMEI number cannot be reported stolen or missing, your account must be in “good standing” with no missed payments or large balances owed, and your device must have been active on AT&T for 60 days. Assuming you meet the company’s requirements, which can be determined through their online portal, you can unlock your device for any other supported carrier. The bad news: AT&T only allows five devices to be unlocked per year from your account. You might also need to wait a few days before your request is finally processed. It’s a bit of a headache, but at the very least you can use your device on other carriers once the process is complete.

Can my T-Mobile phone be unlocked?: The “Uncarrier” stance on unlocking is eerily similar to what we’ve seen from AT&T. Your device must first be a T-Mobile product, must not be reported as stolen or missing, must be connected to an account in good standing, and must have been active for 40 days on T-Mobile.

When it comes to unlocking quotas, however, T-Mobile is far more strict. Only two devices can be unlocked every year, making it difficult for a family to leave the carrier. Furthermore, you have to ensure your T-Mobile payments on the device are completely paid.  Assuming you meet those demands, you can contact T-Mobile’s support to ask for an unlock code for your device. It’s a bit archaic, especially for a carrier that markets itself as the carrier that breaks the rules, but it’s the current system.

What about unlocking a Sprint phone?: Sprint’s guidelines for unlocking a device are similar to T-Mobile and AT&T. You’ll have to use the device on Sprint’s network for 50 days, ensure your contract has ended or that your lease payment on your device is paid off, hold an account in good standing and, of course, have a device that hasn’t been reported as stolen or missing.

Sprint’s documentation on this topic states that phones bought after February 2015 will automatically be unlocked once the device meets these standards, which means you may not have to contact Sprint at all once you pay off the lease. If you believe you’ve met all the standards mentioned in their guidelines and your phone hasn’t been unlocked, you’ll have to contact their customer service for more information.

To reiterate, you’ll still have to make sure your Android device will work on the carrier before moving to another  one (remember: iPhone users can move to the carrier of their choice once they’ve unlocked their devices). That said, it’s typically pretty easy to find those results on Google. Search for your device name with the carrier you started on and the carrier you’re moving to, and a read the various sources available.

Where Can I Buy Unlocked Devices?

If you’re looking to purchase an unlocked device, it stands to reason that you’ll want to steer clear of carrier stores. This may sound obnoxious or frustrating, especially if you’ve always purchased your devices from carriers through contracts or on payment plans. Remember, any device you buy through a mobile provider will be locked until you pay the full retail price of the device or until your phone contract ends. Besides carrier stores, you have three choices on where to pick up your phone.

Amazon has a wide variety of phones available on their website that are completely unlocked, from budget devices to flagship models like the Google Pixel. In addition to these devices, Amazon also offers a “Prime-exclusive” series of phones under the $300 mark.

That said, you’ll have to be an Amazon Prime member to take advantage of the discounts offered on the phone models. Best Buy also has a wide variety of unlocked devices which are organized into manufacturer and type for shopping ease. If you’re looking to finance these devices instead of paying for the phones in one lump sum you’ll have to sign up for the store card which forces you to pay for the device over 12 months.

If you’re interested in financing and don’t mind missing out on some exclusive models and colors, you can go directly to the manufacturer. Apple will sell you an unlocked, SIM-free iPhone for the same price it sells its carrier models, and with their iPhone Upgrade Program, you can pay similar prices we’ve seen from the carriers while also gaining access to 12 month iPhone upgrades and AppleCare+ included in your price.

It’s not a bad deal at all, and while it won’t make your device any cheaper compared to buying the device through a carrier, you at least get the benefit of having a quality extended warranty program. Android manufacturers also sell their devices on their websites, and if you search for the unlocked models of their devices you’ll find them listed alongside the carrier versions. For example, Samsung has its Galaxy line on their website for purchase, with the option to finance the phone over 24 months.

HTC’s flagship U series is only sold in Sprint carrier stores, but you can buy an unlocked model that supports Verizon, T-Mobile, and AT&T on their website. Keep in mind that not all manufacturers offer financing plans, HTC included.

The final method for purchasing your devices is through a seller-based marketplace like eBay or Swappa. You can pick up factory- and user-refurbished devices on those sites, right alongside brand new phones, and eBay listings will typically tell you whether or not the phone is unlocked. If you’re unsure if a listed phone is the unlocked model, research the model number online.

For example, Samsung’s Galaxy series has dozens of model numbers referring to specific countries and carriers, but the unlocked model sports a U1 at the end of its model number to differentiate between the other carrier versions. Remember to research the sellers. If the price seems too good to be true, or the seller is a brand-new account, you could be buying a device that has been marked as stolen or missing, which means it could have difficulty registering on any network, regardless of its locked or unlocked status.

I Purchased a Phone but it Says it’s Locked

If you purchased a phone from a third-party or individual and it is locked you don’t have many options with the carrier. Your phone is still locked either because someone didn’t have it unlocked or someone didn’t have it paid off.

Unfortunately, the seller will need to help you to use the phone. If they’re unwilling to, you can still activate it on the original carrier as long as it isn’t blacklisted. Before purchasing a phone from eBay, Craigslist, or Facebook Marketplace verify that the IMEI will work or, better yet, have them meet you at the carrier of your choice to check activation before paying.

Unless you have the original owner’s account information the carrier won’t be much help. Even if you want to pay to have it unlocked.

Once My Phone Is Unlocked, What Can I Do?

Once you’ve unlocked your phone from your carrier, you can move to another cell provider of your choice, so long as your device is capable of receiving a signal from that provider. You can take your phone internationally as long as it supports the GSM network (Global network) meaning you no longer have to pay for international plans while traveling.

That said, SIM cards don’t provide any other information beyond the cellular connection for your device (though in some cases, you can save some small amounts of data to your phone’s SIM card, like a microSD card). For example, if you placed your spouse’s SIM card into your device, your phone will adapt to your spouse’s phone line, including the number that people use to contact them.

That’s it—everything else, including apps, photos, and music, is tied to either the Apple or Google account tied to the phone inside your settings or stored on the internal storage of your phone. If you’re trying to set up an old device for a spouse, you’ll want to wipe that device first and set it up as a new phone; beyond a phone number, you won’t gain any other data from the SIM card.

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The difference between buying a locked carrier model of a device and an unlocked version has never been clearer. With most carriers no longer offering two-year subsidies on devices, consumers are finally beginning to pay full price for their phones, allowing them more freedom to move between mobile providers. With the prevalence of LTE in the United States, more and more phones finally support all four national providers at once, giving consumers more selection than ever before. Before you upgrade your device on a payment plan, do your research into unlocked models of your favorite devices. In the long run, choosing an unlocked model with a payment plan through the manufacturer might be a better choice for you and your wallet—especially if you’re ever planning on switching carriers.

4 thoughts on “How To Check if your Phone is Unlocked”

Avatar Mallory Marie says:
I have a straighttalk iphone 6s I wanna switch to metropcs. Anyone know for sure if this will work or not? Can straighttalk unlock it if need be?
Avatar Jenny Malone says:
Well I got a iphone 7 Plus and it’s not blacklisted but it says something about unpaid balance. Almost like it was bought on a payment plan. It had a old Sprint Sim in it when I bought it as ischeap!! I put Metro PCS card in it and that’s what it says. Unpaid lease agreement. I put my Imei number and it’s not list or stolen Thank Goodness. So my ?? Are….. Can it be unlocked? After I took my MPcs card out it says under carrier in my about . It says Metro PCS. ANY ADVICE?
Avatar Jasmine says:
Will switching SIM cards “mess up” either phone? For example, if I put my husband’s SIM card into my phone, will my phone automatically start downloading his settings, apps, or contacts?
Avatar Darrell Callihan says:
I’m not sure and I have sick pictures on there..not sure who can see help.
Avatar It's Just Jarrett says:
NO. A SIM card it’s like a “driver’s license” or “tracking device” ALL IT DOES is tell whatever phone you insert it into… “I’m registered to phone # 123-555-9876 on this (Verizon, AT&T, T-Mobile,etc) so any data, signals, phone calls, texts, etc SHOULD be ROUTED to THIS PHONE”. (a most simple explanation of a technical complexity)

Inserting YOUR SIM CARD into another phone (that is compatible with YOUR CARRIER) NO APPS, NO BROWSING HISTORY, NO OLD TEXT MSGS (any NEW ones WILL show up as they’re received/sent to you), NO PHOTOS/VIDEOS, ETC ETC ETC on your “old phone” will appear on the new phone!

Avatar Eugene mullen says:
My phones a Samsung a5 2017 on Vodafone contract but wen I put a tesco mobile contract sim in it 2 it it works fine I can call and receive calls is it unlocked

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