What do the figures mean. Seven ways to find out IMEI your phone

29.04.2021

System

IMEI (International Mobile Equipment Identifier, International Mobile Equipment ID) - a unique number consisting of 15 digits of a decimal number system and assigned not only to each phone, smartphone or tablet, but also to each SIM card connector. View code may be needed for a variety of reasons - for example. How quickly and just get information - try to figure out.

Somewhere outside

Very often, IMEI smartphone or tablet on android is written on the battery, above or under the barcode, somewhere on the box where the device was sold, or even on special stickers coming in the kit. Then, to define your IMEI, it is enough to find the appropriate inscription and gently rewrite the sequence of numbers - it is also easy as.

Important:IMEI devices - confidential information that should not be divided with anyone without a significant cause.

The owner of the device can, using the instructions below, learn imei on their own, and all the offers to "break through" it over the Internet - in the absolute majority of cases fraud. The same applies to the paid services: IMEI is assigned to the manufacturer by the manufacturer on a single algorithm and does not apply to the information closed for the owner - and therefore spend money to check it, absolutely not necessarily.

USSD request

For all models of phones and other mobile devices in which SIM card can be installed, a single team is provided, allowing IMEI faster than - *#06# . To use it, you need:

Using a physical or virtual keyboard of the phone, enter a request * # 06 #, after which, if the page with the results did not automatically open, click on the call button.

Read the information in the appeared window. Copy it will not work out, you will have to rewrite, or use the other methods listed further.

Important:in the same window, other useful information can be posted - in particular, as an example, the serial number of the device.

"Settings"

Not always, but quite often mobile manufacturers make information about IMEI in system settings - then you will find out the identifier will be easier than to deal with. To see the number of your device, you will need:

Open "Settings" and go to the bottom of the page.

Find the "Information" section, "Information", "phone information" or having a similar name and open it.

Go to subsection "Status".

And further - to the "Information about IMEI" directory.

Here will be displayed the desired identifier - or if the device supports the installation of two SIM cards, two IMEIs.

IMEI program

Mobile application that is called is also available for download both in Play Market and other resource trustworthy. To find a phone identifier, enough:

Run the application and wait a bit - the information will appear on the main page.

And choosing a way to send.

Tip:immediately after use, the message should be removed - information, as already mentioned, confidential, and it is not worth exposing its risk of compromising.

CHECK IMEI program

Another remarkable mobile application running on all models and allowing IMEI, just running it and familiarize yourself with the information in the main window.

Tip:you can copy any of the displayed phone identifiers using the appropriate button under the main window.

Let's sum up

The easiest way to know IMEI phone is to dial a combination * # 06 # and click on the call button. Mobile device identifier can also be viewed in the "settings" of the device. Third-party applications allow not only to check IMEI, but also copy it to the clipboard or send in the message.

What is IMEI number? This is a unique code for identifying each mobile phone. Often it is used to identify mobile devices in the operator network. Sometimes "have" is used to find stolen or lost devices. We propose to consider ways to learn the IMEI code, as well as its purpose.

We know the number with a mobile phone

IMEI code is indicated inside all devices. The change in the unique number is fraught with criminal prosecution in many countries. To determine the code, use a special key combination - * # 06 #. By its structure, it can be understood that this is the most common USSD team. The difference is solely that it does not need to press the call button after you get the latter in the grid combination.

After sending a request, a unique identification number will be displayed on the mobile device display. If two SIM cards are installed on the gadget simultaneously, you will see two numbers on the display at once for each card, respectively. The number of numbers in this code is fifteen. In the devices working on iOS, android and Windows background to check the number in the same way. In some cases, along with the code, the special barcode is displayed in which it is encrypted.

Sometimes the owners of phones think that the presence of the room inside indicates that they are not fake, but the original. But in reality, such a code indicates all mobile phones, even if they are made in illegal workshops.

If you have a smartphone running android, you can see the code of your device directly in the menu. It is enough to go to the settings, select the "On Device" section, in which there is a special phone status item. The list of parameters contains code-ime. If the phone functions on two SIM cards, there are two tabs immediately with information on both cards and phone modules.

Other options for identifying the identification number

You can find out the "IMEY" code if you look under the telephone battery. It is enough to remove the rear panel of the gadget, pull out the battery and look at the sticker, which is contained inside. If the device works on two cards, two "imay" is immediately indicated for each SIM card. The same stickers are also contained on boxes from gadgets. This is relevant in situations when you need to deal with the alarms of the mobile phone and write a statement to the police.

Checking the device by IMEI number

The code can be checked online to obtain advanced mobile phone information. For example, it helps to recognize the name of a specific model, identify a number of hidden service information. For this purpose, special information bases in the network are used. What are they needed for?

As mentioned above, iMEI codes are used to find the phone that stolen or lost. However, mobile operators tend to ignore this feature. Therefore, the network creates special information bases about those mobile phones that were lost. If the trouble happened, and you lost the device, make it code-IMEI in such a database to get an additional opportunity to find it. If you discovered someone's mobile phone on the street, use the information base in order to find the owner. Of course, the probability of finding them is insignificant, because there are not so many users about such codes - IMEI, but still there is a chance.

Contrary to popular belief, tracking mobile phones at the "Having" number and the definition of their location is not available. There are no such services in the network simply. This is the prerogative of exclusively mobile operators, and, for such a search, you need a request from the police.

Encyclopedic YouTube.

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✪ How to Track Stolen Phone | IMEI Tracking | How to Find My Lost Mobile | Mr.Growth.

✪ COMO MUDAR O IMEI DE QUALQUER CELLAR ORIGINAL OU PIRATA \u003d 2 \u003d

✪ REGISTER IMEI NUMBER WITH PTA DEVICE VERIFICATION SYSTEM (2018-2019) IN URDU

Subtitles

General

IMEI is assigned by authorized organizations in particular Babt British Approvals Board for Telecommunications. It serves to identify the device on the network and is stored in the firmware of the device. As a rule, IMEI is indicated in four places: in the device itself (in most cases it can be displayed as a set *#06# on the keyboard), under the battery, on the package and in the warranty card. IMEI plays the role of the serial number of the device when authorized on the network, is transmitted to the ether when authorized on the network. IMEI is also used to track the devices and block stolen phones at the cellular operator level, which does not allow to use such a device in the network of this operator, but does not interfere with its use in other networks. The GSM reference network stores IMEI in EIR.

Unlike ESN and MEIDs used in CDMA and other networks, IMEI is used only to identify the device and does not have a permanent attitude to the subscriber. Instead, it is used by the IMSI number stored on the SIM card, which can be inserted into almost any other machine. However, there are special systems that allow one phone to use only one specific SIM card.

The model and origin of the phone are described by the first 8 IMEI numbers (the so-called TAC). The remaining part is the serial number with a control number at the end. Phones that support simultaneous operation with multiple SIM cards are assigned several IMEI numbers.

Imei change

Manufacturers are constantly improving software protection methods from changing IMEI. In modern IMEI devices are stored in a single programmable memory zone and cannot be changed by software (except phones with MTK chipset or Samsung chipset). [ ]

In some countries, for example, in Latvia, United Kingdom [ ], Republic of Belarus Change IMEI is a criminal offense. There is also a case attempted to criminal prosecution for changing IMEI in Russia [ ] And in Kazakhstan

Structure IMEI and IMEISV

IMEI (14 decimal digits plus a check digit) contains information about the origin, model and serial number of the device. The first 8 digits make up the model and place of origin of the device, and are known as TAC (TYPE Approval Code). The rest is the manufacturer-defined by the manufacturer's serial number of the apparatus, with the control number calculated by the moon algorithm at the end. Until 2003, this figure had to be equal to 0. Later this rule was canceled.

IMEISV (International Mobile Terminal Identity and Software Version Number) consists of 16 digits and provides unique identification of each mobile phone and compliance with the software version installed in a mobile phone allowed by the operator. Software version depend on the services available to the mobile device, as well as the ability to perform speech coding, and therefore this parameter is very important.

As of 2004, IMEI format is AA-BBBBBB-CCCCCC-DAlthough it may not always be displayed in this way. In IMEISV, instead of one control number, two digits of software versions are used, so IMEISV looks like AA-BBBBBB-CCCCCC-EE.

To TAC consisted only of 6 digits, the remaining 2 digits constituted the final assembly site (FAC). From January 1 and before April 1, passed the transition period, during which all FAC codes were equal to numbers 00. In FAC ceased to exist, and TAC was expanded to 8 digits.

The first two digits of TAC are a formal registered RBI code. RBI is always ten, that is, it is less than 0xa0, which makes it easy to distinguish IMEI from Meid, the beginning of which is equal to or more than 0xa0.

For example, consider IMEI 35-209900-176148-1 or IMEISV 35-209900-176148-23:

TAC: 35-2099 - Code of the British Council for coordination of telecommunications (BABT) and model number 2099 (Alcatel One Touch 332) FAC: 00 - Such code means that the phone was made during the transition period when FAC was abolished. During the existence of FAC, the following codes were used, including the following codes: 67 - USA, 19 or 40 - United Kingdom, 78 or 20 - Germany, 10 or 70 - Finland, 30 - Korea, 80 - China, 04 - Vietnam Snr.: 176148 - Serial number of the device CD: 1 - Control number SVN.: 23 - Software version number that is installed on the phone. Figure 99 reserved.

Imei new style looks a little different: 49-015420-323751 (German Nokia 3110 Classic) and have an 8-digit TAC (49-015420).

A new MEID mobile equipment identifier running in CDMA -set uses the same basic format as IMEI.

Calculation of the control number

Fold all the numbers in odd positions;
Doubling the numbers on even places and calculate the number of numbers received.
(What is equivalent to replacement:
- 9=9
  followed by summing)
To the resulting number add the result obtained in paragraph 1;
If the resulting number is multiple 10, then the control number IMEI is equal to 0. Otherwise, the checksum is equal to the number that needs to be added to the result to get the nearest greater "round" number.

Example

IMEI \u003d 35-419002-389644-3.

Fold all the numbers in odd positions:

3+4+9+0+3+9+4 = 32

Replace numbers on even places:

5,1,0,2,8,6,4 \u003d\u003e 1,2,0,4,7,3,8 and add them: 1 + 2 + 0 + 4 + 7 + 3 + 8 \u003d 25

To the resulting number add result of claim 1.

25 + 32 = 57

The checksum is equal to the number that must be added to the result to get the nearest greater "round" number.

When discussing phones, smartphones or other mobile devices, such a term often pops up as IMEI. In many materials, the authors recommend checking or change IMEI, while explaining what it is. Now we will try to close this gap in knowledge, telling you what IMEI is in the phone and why it is needed.

IMEI is a unique number that is issued to any mobile hardware operating in mobile networks such as GSM, IDEN or. For example, such a number receives mobile phones, satellite phones, smartphones, tablets and laptops with mobile Internet support, 3G modems and other similar devices. The number of IMEI received corresponds to the number of SIM cards that this device can work. For example, if the phone supports working with two SIM cards, then it receives two IMEI.

The IMEI abbreviation is decrypted as the International Mobile Equipment Identity, which can be translated into Russian as an international mobile equipment identifier. Phone manufacturers and other mobile devices receive these identifiers from special international organizations that are authorized to issue them. For example, such identifiers displays BABT (British Approvals Board for Telecommunications). In the future, manufacturers distribute the identifiers received by specific phones that they produce, thus achieved the uniqueness of each IMEI.

As for the IMEI structure, it consists of 14 or 16 digits (in this case it is called IMEISV). The first 8 digits indicate the phone model and its origin, the other numbers include a serial number and control number specified by the manufacturer. In the case of IMEISV, which consists of 16 digits, the software version is also indicated.

What is needed by IMEI phone

As already mentioned, IMEI is a unique phone number, so it is convenient to use it for identifying phones in the mobile operator's network. Mobile operator can use IMEI to determine the model of your phone, as well as determining communication technologies that they are supported. It also allows mobile operators to drive a phone into a blacklist and no longer serve it.

Thanks to its uniqueness IMEI can be used to track the phone even if its owner changes the SIM card. In addition, IMEI can be used by customs officers to determine the legality of the phone.

It should be noted that IMEI is the identifier of the phone, and not his subscriber. To identify a subscriber in mobile networks, another unique international number is used, which is called IMSI and writes on the SIM user card.

How to know imei phone

After assigning IMEI phone, it is written in several ways that duplicate each other. Any of these methods can be used to find out the IMEI phone.

First, IMEI is written to the phone firmware, that is, in its software. This information can be at any time using the request. *#06# You need to dial on the device keyboard. The code *#06# It works equally well both on push-button phones and modern sensory screen smartphones.

After entering this code, Imei immediately appears on the screen, which was assigned to this phone. If a multiple IMEI has been assigned the phone, then all will appear on the screen.

Secondly, IMEI is indicated on the phone itself, it is usually done on a special sticker located under the battery. And thirdly, IMEI is always indicated in the warranty documents and on the phone box. Thus, the user always has several ways to see the IMEI of your phone.

Can I change IMEI

In the old models of IMEI phones changed simply enough. In particular, it could be done using a terminal program and several commands. But, now everything is much more complicated, because manufacturers increasingly recording IMEI in a special area of \u200b\u200bmemory, which cannot be rewritten in a software way.

However, on some phones you can still change IMEI. For example, it is done through the engineering menu of the device or by getting root rights (if this is an Android smartphone). If you need to change IMEI on your phone, you need to search for information on specifically to your device. Universal instructions for changing IMEI, which would work on any device, simply not.

It should be noted that in some countries the change in IMEI is prohibited and is a criminal offense. Therefore, before doing something like this should be clarified, whether these are the laws of your country.

How to find out the phone model by IMEI

If you know IMEI phone, you can find out its model, specifications, production date, as well as the country of the manufacturer. To get this information, you just need to go to one of the sites that have a database, and enter your IMEI there. For example, you can search for information on such sites as.

General

IMEI is assigned to the phone during manufacturing at the factory. It serves to identify the device on the network and is stored in the firmware of the device. As a rule, IMEI is indicated in four places: in the device itself (in most cases it can be displayed as a set *#06# on the keyboard), under the battery, on the package and in the warranty card. IMEI plays the role of the serial number of the device and is transmitted to the ether when authorized on the network. IMEI is also used to track the devices and block stolen phones at the cellular operator level, which does not allow to use such a device in the network of this operator, but does not interfere with its use in other networks. The GSM reference network stores IMEI in EIR.

The model and origin of the phone are described by the first 8 IMEI numbers (the so-called TAC). The remaining part is the serial number with a control number at the end. Phones supporting simultaneous operation with two SIM cards are assigned two IMEI numbers.

Imei change

Manufacturers are constantly improving the methods of protecting the software of the device from changing IMEI. In a number of modern IMEI devices are stored in a non-programmable memory zone and cannot be changed by software.

In some countries, for example, in Latvia, Great Britain, the Republic of Belarus, the change of IMEI is a criminal offense. There is also a precedent attempts to criminal prosecution for changing IMEI in Russia.

Structure IMEI and IMEISV

IMEISV (International Mobile Terminal Identity and Software Version Number) consists of 16 digits and provides unique identification of each mobile phone and compliance with the software version installed in a mobile phone allowed by the operator. Software version depend on the service available for a mobile device, as well as the ability to perform speech coding and therefore this parameter is very important.

For example, consider IMEI 35-209900-176148-1 or IMEISV 35-209900-176148-23:

TAC: 35-2099 - Code of the British Council for coordination of telecommunications (BABT) and model number 2099 (Alcatel One Touch 332) FAC: 00 - Such code means that the phone was made during the transition period, when FAC was abolished. During the existence of FAC, the following codes were used, including the following codes: 67 - USA, 19 or 40 - United Kingdom, 78 or 20 - Germany, 10 or 70 - Finland, 30 - Korea, 80 - China, 04 - Vietnam Snr.: 176148 - Serial number of the device CD: 1 - Control number SVN.: 23 - Software version number that is installed on the phone. Figure 99 reserved.

Imei new style looks a little different: 49-015420-323751 (German Nokia 3110 Classic) and have an 8-digit TAC (49-015420).

The new MEID moving equipment identifier operating in CDMA networks uses the same basic format as IMEI.

Calculation of the control number

Method 1.
To calculate the latest IMEI digit, you must:

1. Fold all the numbers in odd provisions; 2. Replace numbers on even places according to the formula and fold them: 0 \u003d 0 1 \u003d 2 2 \u003d 4 3 \u003d 6 4 \u003d 8 5 \u003d 1 6 \u003d 3 7 \u003d 5 8 \u003d 7 9 \u003d 9 3. To the resulting number add result obtained in paragraph 1.; 4. If the resulting number is zero or multiple 10, then the control number IMEI is 0. Otherwise, the checksum is equal to the number that needs to be added to the result to get the nearest "round" number.

Check Digit Calculation Method for:
Below we will try to calculate the CD control number for IMEI \u003d 3 5 41 90 02 38 96 44 3 . To do this, we need to perform the following operations with our IMEI code:

1. Fold all the numbers in odd positions 3,4,9,9,0,3,9,4: 3 + 4 + 9 + 0 + 3 + 9 + 4 \u003d 32 2. Replace numbers at even places 5,1,0, 2,8,6,4 by formula 0 \u003d\u003e 0, 1 \u003d\u003e 2, 2 \u003d\u003e 4, 3 \u003d\u003e 6, 4 \u003d\u003e 8, 5 \u003d\u003e 1, 6 \u003d\u003e 3, 7 \u003d\u003e 5, 8 \u003d\u003e 7, 9 \u003d\u003e 9: 5,1,0,2,8,6,4 \u003d\u003e 1,2,0,4,7,3,8 and add them: 1 + 2 + 0 + 4 + 7 + 3 + 8 \u003d 25 3. To the resulting number 25 add result 32, obtained in paragraph 1. 25 + 32 \u003d 57 4. "If the resulting number is zero or multiple 10, then the control number IMEI is 0" - this is not this case ... Non-definite (\u003d ours) the case is equal to the number that needs to be added to the result, To get the nearest greater "round" number (i.e., the next one is a dozen). The next tens \u003d 600. To result 57, you must add 3 to get the nearest larger "round" number 60. Answer: Control number \u003d 3

Method 2.
1) double the values \u200b\u200bof the numbers at even positions (5,1,0,9,6,4).
2) folded together twiceful numbers on even positions and no even positions, while "folding" numbers at even positions into the components of the number (for example, 14 should be represented as 1 and 4). Received 57.
3) If the finite number ends with 0, then Cd \u003d 0. Otherwise, the CD is equal to the number you want to add to the result obtained in paragraph 2 to get the following a dozen. The following ten after 57 is 60, 60-57 we get 3. Total control number is 3
PHP code to verify IMEI

FUNCTION CORECTDIGIT2 ($ Text) (
Switch ($ text) (
CASE "0": RETURN "0"; Break;
CASE "1": RETURN "2"; Break;
CASE "2": RETURN "4"; Break;
CASE "3": RETURN "6"; Break;
CASE "4": RETURN "8"; Break;
CASE "5": RETURN "1"; Break; // 5 * 2 \u003d 10, 1 + 0 \u003d 1
CASE "6": RETURN "3"; Break; // 6 * 2 \u003d 12, 1 + 2 \u003d 3
CASE "7": RETURN "5"; Break; // 7 * 2 \u003d 14, 1 + 4 \u003d 5
CASE "8": RETURN "7"; Break; // 8 * 2 \u003d 16, 1 + 6 \u003d 7
CASE "9": RETURN "9"; Break; // 9 * 2 \u003d 18, 1 + 8 \u003d 9
};
}
FUNCTION GETIMEICD ($ Text) (
$ one \u003d $ Text + $ Text + $ Text + $ Text + $ Text + $ Text + $ Text;
$ Two \u003d CorectDigit2 ($ Text) + CorectDigit2 ($ Text) + CorectDigit2 ($ Text) + CorectDigit2 ($ Text) + CorectDigit2 ($ text) + CorectDigit2 ($ text);
$ three \u003d $ one + $ two;
$ FOUR \u003d (substr ($ three, 0, strlen ($ three) -1) +1) * 10;
$ Five \u003d $ Four- $ Three;
if ($ Five \u003d\u003d 10) ($ Five \u003d 0;)
Return $ Five;
}