1851270000

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Introduction

1851270000 is the telephone area code of Beijing\'s telecommunications network, identifying the calls, services and other related technologies within the city. Originally released in 1997, the telephone area code of Beijing has become one of the most recognized and valuable numbers in the world. This article will discuss the application field and working principle of 1851270000.

Application Field of 1851270000

1851270000 is used to identify telephone calls within Beijing. It is a unified telephone area code that serves as the prefix for all telephone numbers within the city. The 1851270000 area code is used in both domestic and international numbers, meaning that all inbound and outbound calls in Beijing must have the prefix 1851270000.1851270000 is also used for general services and message routing within Beijing\'s telecommunications system. Many services such as calling cards, VIP services, faxes,Voice over IP services, Internet services, and mobile services are heavily dependent on the 1851270000 telephone area code for providing a stable connection. For example, when you receive a call on your mobile phone from an unknown number, chances are that the number begins with 1851270000.

Working Principle of 1851270000

1851270000 is built upon the telephone numbering system set out by the International Telecommunication Union (ITU). This system is based on geographical divisions and makes use of area codes and exchange codes to identify individual telephone subscribers. The first two digits, "18", identify the geographic region in which the number is located. The second two digits, "51", identify the province, city, or region in which the number is located. The third two digits, "27", designate the telephone exchange that is responsible for routing calls for that telephone number. The fourth digits, "00", identify the specific line of the telephone exchange. When a call is placed, the telephone exchange uses its routing tables to determine the location of the other party and connects the call accordingly. The 1851270000 area code is stored in the routing tables, and when a call is placed to a telephone number prefixed with 1851270000, the exchange uses the area code to route the call.

Conclusion

1851270000 is an important telephone area code that is widely used for both domestic and international calls, as well as for various services within Beijing\'s telecommunications network. It is based on the International Telecommunication Union\'s numbering system, which makes use of area codes and exchange codes to accurately route individual calls. By understanding the application field and the working principle of 1851270000, we can better appreciate how Beijing\'s telecommunications network functions and how it is able to stay connected to the rest of world.

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