The IMEI TAC database is a vast repository. It stores information about mobile device spain email list models. When a phone is manufactured, it receives a unique IMEI. The first eight digits of this IMEI form the TAC. This code identifies the device's brand and model. It also indicates where and when it was manufactured. This database is essential for many reasons. It helps in tracking stolen phones. It also supports network security. Law enforcement agencies use it too. Moreover, it assists in device authentication.
The Structure of IMEI and TAC
The IMEI is a 15-digit number. Sometimes it appears as 14 digits plus a check digit. It uniquely identifies each mobile device. Think of it as a phone's fingerprint. This number is globally unique. It prevents confusion between devices. The IMEI breaks down into several parts. These parts provide specific information.
The first eight digits are the TAC. This code is highly informative. It identifies the device manufacturer. It also specifies the model. Furthermore, it reveals the approval body. This body certifies the device. For example, a TAC might indicate Samsung Galaxy S23. It might also show the specific regional variant. This granular detail is incredibly useful.
The next six digits represent the serial number. This part is unique to each device. It differentiates one phone from another of the same model. Finally, the last digit is a check digit. This digit validates the entire IMEI. It uses an algorithm called the Luhn algorithm. This prevents errors during manual entry.
How the TAC is Allocated
The GSMA manages TAC allocation. The GSMA is the global association for mobile operators. They ensure each TAC is unique. Manufacturers apply to the GSMA for TAC blocks. Once approved, these blocks are assigned. This process ensures no two device models share a TAC. This structured approach maintains order. It prevents conflicts in the database.
The GSMA maintains strict guidelines. These guidelines ensure data integrity. Manufacturers must provide detailed device specifications. These include model name, type, and capabilities. This information is crucial. It populates the IMEI TAC database accurately. Without this rigor, the system would fail.