doctorSIM IMEI Phone Checks

doctorSIM's phone checks allow you to obtain important information on your cell phone with just the device's IMEI number.

Below are the phone checks currently available at doctorSIM: 

Free Blacklist Check

This phone check immediately informs you if your phone has been blacklisted by the original operator due to loss, theft or unpaid bill(s).


Premium Blacklist Check

Our Premium Blacklist Check also informs you if your phone has been blacklisted but in addition, provides a comprehensive report on the current status of your cell phone including other information not available with the free check.

Both phone checks are very useful whether you are looking to buy or sell a second-hand cell phone or to simply find out if a device is blacklisted. And all you need to know is the IMEI number to verify this information. Once we receive the unique IMEI, we'll send you the document in PDF which you can download as proof if you ever wish to sell the phone.

Normally, reports do not extend to other countries and the device may work in another country, however, we cannot guarantee this will always be the case. When a cell phone has been blacklisted, you will not be able to use it to make or receive calls but you will be able to connect to the internet and send and receive text messages. 

NOTE: Information on the current status (reported or not reported) is updated daily by the GSM Association, of which almost all network carriers and MVNOs are members (see full list). However, some network providers take longer to report phones or remove them from a particular list and discrepancies may exist.

For this reason, if you are unsure of the full history of the phone or who it belongs to, doctorSIM recommends you double check its current status by contacting the network provider the phone is locked to.

The report does not include Spanish network providers as per the Organic Law on Protection of Personal Data. 


Original Operator

Many of you may not be aware that for many phone unlocking services it is necessary to indicate the network to which the phone is locked to successfully unlock it.

At doctorSIM, you can check the original operator of your cell phone if it is one of the following makes: BlackBerry, HTC, Huawei, iPhone, Lenovo, LG, Motorola, Nokia, Samsung or Sony.


Locked/Unlocked Status (iPhone only)

If you are not sure if your iPhone is locked or unlocked, the best thing to do is check its status before requesting an unlock code.

In this way, you’ll know whether you can already use your iPhone on any network or if you need doctorSIM to unlock it for you.

All you need to do is insert your IMEI number, select your payment method and then wait a few minutes to find out the status of your iPhone.

Please note that this service does not check whether the phone has been reported due to loss, theft or unpaid bill.


iCloud Activation Status (iPhone only)

iCloud Activation Lock is an iPhone security measure which makes it harder for anyone to use or sell your iPhone, iPad, or iPod touch if it's ever lost or stolen.

The passcode needs to be guarded safely by the owner of the iPhone as this is the only way to remove the iCloud Activation Lock. If you cannot remember the passcode, you will need to contact Apple for assistance.

To know if your iPhone has this lock enabled, use the doctorSIM iCloud Activation Status Check.


Unlock Eligibility (only iPhone from Sprint)

Find out if your iPhone can be unlocked. Valid for any Sprint Locked iPhone. Provides Clean/Unclean status and whether Financial Eligibility Date (FED) has been achieved. Perform this check to avoid buying a locked phone with no unlock possibility. But, remember: This service will not unlock your phone! Unlocking pricing/times options for eligible phones are provide post-check for qualifying phones.


Unlock Eligibility (only iPhone)

Find out if you can unlock your iPhone. Check all the details regarding its eligibility, like original network and blacklist status info. Find out which unlock service you need. 


Unlock Eligibility

Checks if your phone meets the requirements to be unlocked. Requests official confirmation of unlocking eligibility. Makes sure your phone is not blacklisted. Reveals the original carrier of your phone. Recommends which unlocking service you should use. Offers a fast and easy solution prior to requesting an unlock.


Identify Model

To successfully unlock many phones it is essential to know the exact model. For this reason, if this information is incorrect and the phone fails to unlock we will be unable to issue you a refund.

You can use our search function to determine the make and model of your phone by simply typing the IMEI number. Dial *#06# on the phone's keypad to obtain the IMEI number.


Find out if your Xiaomi has the Mi Account on. We check the information on Xiaomi's official databases. Result delivered in a few minutes. Essential before buying a second-hand Xiaomi. Valid for all Xiaomi models.


Warranty Status 

Find out the warranty expiry date and tech support eligibility. Recommended service when buying a second-hand phone.


More info