The area code of Nanjing, Jiangsu Province is 025, which is also written as +025, 025-, (025) and (025). Of course, the zero before the Nanjing area code can be ignored, and the area code is also written as 25, +25, 25-, (25) and (25). According to international standards, the international area code of China is written in front of the Nanjing telephone area code.

related data

Nanjing area code: Xuanwu area code, baixia district area code, Qinhuai area code, jianye district area code, Gulou area code, Xiaguan area code, Pukou area code, Qixia area code, Yuhuatai area code, Jiangning area code, Liuhe area code, Lishui area code and Gaochun area code are all 025. In these districts and counties, you don't need to add the telephone area code, you can directly enter the telephone number.

For example, in Xuanwu District, you can directly enter the number to dial baixia district number 320 1007 without adding the area code; For calls from other parts of China to these areas, please refer to the instructions for domestic calls and follow the instructions for international calls.

Area code for domestic calls to Nanjing: use "025-xxxxxxx" to call Nanjing's fixed telephone from other areas with different area codes (please note that you don't need to reduce the sign when dialing, just dial all digits continuously, XXXXXXXX means local telephone number, and the digits are not necessarily 8, subject to the actual digits of local telephone number). For example, in other parts of China, you need to enter 025320 1009 to make a call to Nanjing with the number of 3201009.

Area code for international calls to Nanjing: For calls to Nanjing fixed telephone from abroad (outside Chinese mainland), the dialing method is "+86-25-XXXXXX", and the international prefix of the country/region should be added before 86 (it is not necessarily 00 as in China, and there is no need to have a+or-sign when dialing, just dial all digits continuously). For example, to dial the Nanjing fixed telephone with the number of 320 1006 abroad, you need to enter 8625320 1006 to dial.