Mobile Equipment Identifier Types and Uses

Mobile equipment identifiers come in various types, each serving a unique purpose. The most common types are RFID tags, barcodes, and QR codes.

RFID tags are widely used due to their ability to store large amounts of data and can be read from a distance. They are often used in high-speed applications.

Barcodes are simple and inexpensive, making them a popular choice for inventory tracking and pricing.

IMEI and MEID are two types of mobile equipment identifiers used in the mobile phone industry. The IMEI (International Mobile Equipment Identity) is used in GSM networks, while the MEID (Mobile Equipment Identifier) is used in CDMA networks.

The IMEI consists of 15 or 16 digits, with the first 8 digits being the TAC (Type Allocation Code) and the next 6 digits being the serial number. The last digit is a check digit or a software version number. The MEID, on the other hand, is 56 bits long and consists of 32 bits for the manufacturer and 24 bits for the serial number.

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IMEI numbers can be found on the phone itself, usually on the packaging or on the phone's box. You can also dial *#06# on an Android device to see the IMEI number. For iOS devices, the IMEI number can be found in the device's settings or by contacting the manufacturer.

Here are the key components of an IMEI or MEID number:

Note that the TAC and serial number are the most important parts of an IMEI or MEID number, and they can be used to identify a specific device.

Related reading: Mobile Identification Number

TIA serves as the Global Hexadecimal Administrator (GHA) to assign MEID manufacturer codes. This means they have the authority to assign a unique hexadecimal code to each manufacturer.

The TIA Standards Committee TR-45 ESN/UIM/MEID Ad Hoc, along with 3GPP2, worked with the wireless industry to help the transition from ESN to MEID.

TIA also coordinates with the International Mobile Equipment Identifier (IMEI) Global Decimal Administrator (GDA) and the GSM Association when administering Decimal IMEI/MEID codes for multi-mode equipment.

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A library of MEID documents is available to assist with understanding and migration from ESN to MEID, including a MEID FAQ and a TIA White Paper on the Exhaust of Electronic Serial Numbers (ESNs) and Migration to Mobile Equipment Identifiers (MEIDs).

Cathy Wang, Director of MEID Administration for the Asia-Pacific Region, is a key figure in this process.

Here are some key documents related to MEID administration:

ESNs and IMEIs are two types of mobile equipment identifiers used to uniquely identify mobile devices. The Telecom Industry Association manages Electronic Serial Numbers (ESNs), which are 32 bits long and consist of 8 bits for the manufacturer and 24 bits for the serial number.

ESNs can be represented in two formats: an 8 character hex code and an 11 digit decimal code. The hex code consists of a 2 character hexadecimal code for the manufacturer and a 6 character hex code for the serial number. The decimal code consists of a 3 digit decimal number for the manufacturer and an 8 digit decimal number for the serial number.

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IMEIs, on the other hand, are used on GSM networks and consist of 15 or 17 digits. They are divided into several parts, including the Type Allocation Code (TAC), the Final Assembly Code (FAC), the Serial Number (SNR), and the Software Version Number (SVN). The first 8 and next 6 digits of the IMEI are the most important, as they identify the device and its manufacturer.

Here are the different parts of an IMEI:

The Luhn check digit is an algorithm that validates the ID number. The IMEI can be found on phone boxes, on the back of a phone, under a battery, on a SIM tray, or in the Settings and About This Phone menu. Dialing *#06# on your phone will also display the IMEI number.

A different take: Como Ver El Imei De Un Samsung

ESNs are a unique identifier for mobile devices, managed by the Telecom Industry Association. They consist of 32 bits, which can be represented as a sequence of 32 1's and 0's.

The basic format for ESNs includes 8 bits to specify the manufacturer and 24 bits to specify the serial number. Some manufacturer codes are reserved and not to be used as normal ESNs, such as numbers 0 through 18, 128, 250, and 255.

ESNs can be represented in two main formats: an 8 character hex code and an 11 digit decimal code. The 8 character hex code is the most widely used format, consisting of a 2 character hexadecimal code to represent the manufacturer and a 6 character hex code to represent the serial number.

To convert between the two formats, you need to break up the code into a manufacturer block and a serial number block, and then convert each block separately. This can be done by splitting the code into the correct number of hex characters or decimal digits.

Some improper ways of representing ESNs include converting the 11 digit decimal code straight to hexadecimal, or converting the 8 character hex code straight to decimal. These formats can be difficult to detect, but can be corrected by converting the code back to the original format and splitting it up correctly.

Here's a summary of the two main formats:

Finding your ESN/IMEI/MEID is easier than you think. You can find it on the box your phone came in, on the back of your phone, or under the battery.

The first two digits of the IMEI number, AA, indicate the Reporting Body Identifier, which is the GSMA approved group that allocated the TAC.

You can also find your IMEI number by dialing *#06# on your phone. This will list the IMEI number in the form of 17 digits (TTTTTTTT-NNNNNN-C / SS) for Android devices, while iOS devices will display the common 15-digit IMEI number.

The most important numbers in the IMEI or IMEISV are the first 8 and the next 6, which are the TAC and Serial Number.

Here's a breakdown of where to find your ESN/IMEI/MEID:

IMEI stands for International Mobile Equipment Identity, a 15-digit code unique to each GSM mobile device. It's made up of a Type Allocation Code (TAC), a Final Assembly Code (FAC), a Serial Number (SNR), and a check digit.

The TAC is a 6-digit code assigned by a GSMA-approved group, while the FAC is a 6-digit code indicating the phone's manufacturer and model. The SNR is a unique 6-digit code identifying the device. The check digit is a single digit used to validate the ID number.

IMEI numbers can be found on the phone's packaging, on the phone itself, or by dialing *#06# on the keypad.

MEID stands for Mobile Equipment Identifier, a 56-bit code used for CDMA mobile devices. It's also made up of a TAC and a SNR, but with a different format. The TAC is an 8-digit code, while the SNR is a 24-bit code.

Here's a comparison of IMEI and MEID numbers:

IMEI and MEID numbers are used to identify mobile devices and track them. They can be found on the phone's packaging, on the phone itself, or by dialing a specific code on the keypad.