Check SIM Lock Status of iPhone and Galaxy S3 Android Phone

As you may know, smartphones such as iPhone, Android or Windows Phone are available in both SIM locked and SIM unlocked state (also known as factory locked, carrier locked and network locked) for purchasing. While SIM unlocked phones can be used anywhere without restrictions, SIM locked phones can only be used in specific countries and under specified networks. If you are about to buy an iPhone or looking to switch networks and are not sure about your iPhone’s SIM lock status, here is how to check it with its IMEI number.

Every mobile phone has a unique 15-digit IMEI (International Mobile Equipment Identity) number. Based on this number, you can check some information about the device like brand or model. Also, you can check SIM lock status of an iPhone with IMEI number.

How to Check SIM Lock Status of iPhone

-You can find your device’s IMEI number by dialing *#06# or on your iPhone you go to Settings > General > About.
-Now, go to the free web service (preferably on your computer) and enter your IMEI number in the box. Click “check”.


– The service will list your device’s information. At the bottom right of the page, click on “Free Simlock status check”.


– The website will check your IMEI against the database of factory unlocked iPhones and will let you know whether your iPhone is officially unlocked or not. Additionally, it tells you about the warranty status of your device. [Via]

How to Check SIM Lock Status of Samsung Galaxy S3

Type the code *#7465625# or *#SIMLOCK# on the keyboard of your phone. It’ll display various lock status information of your phone. This method should work on all other Samsung Android handsets.


Kannan is a computer and Android enthusiast, a blogger by passion and a tech freak. His always ready-to-help attitude, knowledge and hard work is what drives him.


  1. Mandroid

    Feb 7, 2013 at 7:35 pm

    All show as OFF, my question es if firmware update can change this status ?

  2. George

    Jan 31, 2013 at 4:13 pm

    This code “*#7465625#” was a fiction. Never works. The writer bluffing.

    • Donny

      Aug 1, 2014 at 11:23 am

      Actually it does work, just not with S3. Samsung blocked it with the JB update.

  3. colddream

    Jan 21, 2013 at 2:36 am

    I mean I tried to type the code *#7465625#, but it said invalid MMI code. I don’t know how to type letters “SIMLOCK” on the keyboard, so I wonder if I can find the number of “SIMLOCK” somewhere? Thanks 🙁

  4. colddream

    Jan 15, 2013 at 10:07 pm

    What does it mean if the result doesn’t have “Check network and simlock” and “Free simlock status check”? My phone is Galaxy S3. Thanks

    • Kannan

      Jan 16, 2013 at 1:59 am

      For Galaxy S3, type the code *#7465625# or *#SIMLOCK# on the keyboard of your phone to know the status.

      • colddream

        Jan 18, 2013 at 3:22 am

        I used the first way, it said invalid MMI code. What is SIMLOCK and where can I find it?

        • JK

          Jan 18, 2013 at 7:54 am

          The first method is for iPhone. I think everything is well explained in the article?

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