What's the area code of Sichuan?

Sichuan area code: 028,081x, 082X, 083X.

Area code refers to the telephone area code commonly used in the administrative areas of major cities in the world, which is mainly used for domestic and international long-distance telephone access. For example, Chinese mainland international area code 86, Beijing area code 0 10, Guangzhou area code 020 and so on. When using domestic long distance calls, dial 0 before the area code. It is worth mentioning that people often confuse concepts and mistakenly think that there is a 0 in front of the area code itself. In other words, because 0 is the only long-distance access code in China, it is often used side by side with the following area code, so it has become a habit. In fact, when calling back to a domestic city from abroad, the local international long-distance telephone access code is added after the China country number 86, and there is no 0 in front of the city area code. For example, the area code of Chengdu should be 28, not 028.

The area code was determined after the Cultural Revolution. At that time, there was no program-controlled telephone exchange, and there were not many municipal administrative units (mostly districts and few prefecture-level cities). When the local unit exceeds 10 but is less than 15, some areas with less long-distance telecommunication traffic share a regional exchange center, such as Huaihua City, Xiangxi Tujia and Miao Autonomous Prefecture and Zhangjiajie City, Hunan Province, which were adjacent to Chenzhou City and Hunan Province. However, the long-distance network also adopts the "multilevel tandem system".

In the 1990s, computer-controlled program-controlled switches were widely used in China. This multi-stage tandem system for long-distance calls became a thing of the past, and local telephone networks could communicate without going through the next tandem center. However, the area code format of that year was retained. Later, the C4 network merged, and the four-digit area code was gone. In this way, the three-digit area code with the second even number will obtain the number resources, ensuring that each municipal administrative unit has at least one three-digit area code. Except for Taiwan Province Province, all localities have used the original spare number resources to fill the vacancy of number resources. Therefore, the numbers after 63x appear in the area codes of Shandong, Guangdong and Yunnan, and the remaining 898, 899 and 890 in the Tibet area code become Hainan area codes. By May of 20001year, Hainan Province had merged with C3 network, leaving only 898 companies. Due to the special long-distance dialing method of GSM mobile phone, the area code of Beijing has to be changed to 10.