Overview

IMEI (International Mobile Equipment Identity) is an abbreviation of International Mobile Equipment Identity Code. The international mobile equipment identification code is an "electronic serial number" consisting of 15 digits. It corresponds to each mobile phone, and the code is worldwide. only. Each handset will be assigned a globally unique set of numbers after assembly, which will be recorded by the manufacturer of the manufacturing process from production to delivery.

The IMEI code is uniformly distributed by GSM (Global System for Mobile Communications) and is authorized to be accepted by BABT (UK Communications Certification Management Committee).

The IMEI consists of 15 digits and consists of:

1. The first 6 digits (TAC, Type Approval Code) are "model approval numbers", which generally represent models.

2, the next two digits (FAC, Final Assembly Code) is the "final assembly number", generally representing the origin.

3. The subsequent 6-digit number (SNR) is the "serial number", which generally represents the production sequence number.

4. The last 1 digit (SP) is usually "0", which is the check code and is reserved.

The IMEI code is unique, attached to the logo on the back of the phone, and read and written in the phone's memory. It is also the "file" and "ID number" of the phone at the manufacturer.

IMEI's application is subject to payment. The price is $400 for every TAC official (BABT) charge.

Most countries in the world can apply for TAC at BABT, except for the United States (applied by CTIA agencies in the US), China (applied by TAF institutions in China), and India (applied by MSAI institutions in India)。