According to the number of China Telecom Network, the "95" segment is used uniformly throughout the country, and can be divided into three categories according to the purpose: customer service number of service-oriented enterprises and institutions, public service number and other business access numbers. In other words, the numbers starting with "95" may be banks, airlines or value-added telecom enterprises.
I learned from the Information and Communication Administration of the Ministry of Industry and Information Technology that:
Numbers starting with 953, 955 and 956 are 5 or 6 digits long, which are customer service numbers used by influential large enterprises in banking, securities, insurance, aviation, logistics (express delivery), petroleum, railway, electric power and other industries, and can be answered with confidence. 95 1 10 is the marine police public service number currently in use.
Numbers starting with 950, 95 1, 952, 954 and 957 are the numbers used by value-added telecom enterprises such as call centers to carry out business. There may be calls from normal companies (such as courier companies) or bad companies, which need further judgment.