Xuzhou, referred to as "Xu" for short, was called Pengcheng in ancient times. It is a prefecture-level city and sub-central city under the jurisdiction of Jiangsu Province, a national historical and cultural city, a national comprehensive transportation hub, and a central city of Huaihai Economic Zone approved by the State Council. 05 16 is the telephone area code of Xuzhou City, Jiangsu Province. Xuzhou area includes: Gulou District, tongshan district, jiawang district, quanshan district, Yunlong District, Pizhou City, xinyi city, Suining County, Fengxian County and Peixian County, all using telephone area code: 05 16.
Xuzhou is located in the southeast of North China Plain and the northwest of Jiangsu Province. The Beijing-Hangzhou Grand Canal passes through the territory, where the Longhai Railway and beijing-shanghai railway meet. It is called the thoroughfare of five provinces. Xuzhou is an important gateway city in East China, an important node city of the national "Belt and Road", an innovative demonstration zone of the national sustainable development agenda, a sub-central city in the northern wing of the Yangtze River Delta, and a core city in Xuzhou metropolitan area, and has the reputation of "China Construction Machinery Capital".
A brief history of area code development
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 regions and few prefecture-level cities). When the local unit is more than 10 and less than 15, some areas with less long-distance telecom traffic share a regional switching center, so the area code is 4. 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.
Reference to the above content: Baidu Encyclopedia-Xuzhou City