How to check the area code? How to check the city area code?

2. Shanghai: 02 1

3. Tianjin: 022

4. Chongqing: 023

5. Hong Kong: 852 people

6. Macau: 853 people

7. Hebei Province:

Shijiazhuang: 03 1 1

Zhangjiakou city: 03 13

Chengde: 03 14

Qinhuangdao: 0335

Tangshan: 03 15

Langfang: 03 16

Baoding: 03 12

Cangzhou: 03 17

Hengshui: 03 18

Xingtai city: 03 19

Handan: 03 10

8. Zhejiang Province:

Hangzhou: 057 1

Huzhou: 0572

Jiaxing: 0573

Zhoushan: 0580

Ningbo: 0574

Shaoxing: 0575

Quzhou City: 0570

Jinhua: 0579

Taizhou: 0576

Wenzhou: 0577

Lishui City: 0578

9. Liaoning Province

Shenyang: 024

Tieling City: 024

Fushun: 024

Benxi City: 024

Chaoyang city: 042 1

Fuxin: 04 18

Liaoyang: 04 19

Anshan: 04 12

Dandong: 04 15

Dalian: 04 1 1

Yingkou city: 04 17

Panjin City: 0427

Jinzhou: 04 16

Huludao City: 0429

Hunan province 10

Changsha: 073 1

Zhuzhou City: 073 1

Xiangtan city: 073 1

Zhangjiajie: 0744

Changde City: 0736

Yiyang City: 0737

Yueyang: 0730

Hengyang: 0734

Chenzhou: 0735

Yongzhou: 0746

Shaoyang City: 0739

Huaihua City: 0745

Loudi: 0738

Xiangxi Tujia and Miao Autonomous Prefecture: 0743

Jiangsu province 1 1

Nanjing: 025

Xuzhou: 05 16

Lianyungang: 05 18

Suqian: 0527

Huaian: 05 17

Yancheng: 05 15

Yangzhou: 05 14

Taizhou: 0523

Nantong: 05 13

Zhenjiang: 05 1 1

Changzhou: 05 19

Wuxi: 05 10

Suzhou: 05 12

Guangdong province 12

Guangzhou: 020

Qingyuan City: 0763

Shaoguan: 075 1

Heyuan city: 0762

Meizhou: 0753

Chaozhou: 0768

Shantou City: 0754

Jieyang City: 0663

Shanwei City: 0660

Huizhou: 0752

Dongguan: 0769

Shenzhen: 0755

Zhuhai: 0756

Zhongshan: 0760

Jiangmen: 0750

Foshan: 0757

Zhaoqing City: 0758

Yunfu City: 0766

Yangjiang City: 0662

Maoming: 0668

Zhanjiang City: 0759

Area code numbering principle

The principle of multilevel tandem classification is to set up a main international interface office, which is divided into several regions according to long-distance traffic and administrative divisions, and each region has a tandem center, that is, a primary switching center; Each region is divided into several provinces, and each province has another center, namely the secondary exchange center; Each province is divided into several regions, and a center is set up in the central city of the region, that is, a three-level exchange center;

Then county centers and four-level exchange centers are set up in counties below each region; The five-level switching center is a local exchange end office, which is generally a local exchange end office. Generally speaking, if you make a long-distance call to Beijing from Mengla County, Xishuangbanna Dai Autonomous Prefecture, Yunnan Province, the signal will be sent from Mengla County to Xishuangbanna Central Bureau, then to Kunming Central Bureau, and then to Chengdu Central Bureau, the center of southwest China, before it can reach Beijing.

Based on this "multi-level tandem system", the principle of "multi-level" is also reflected in the compilation of telephone long-distance area code, which reflects a certain correspondence in the number arrangement.

Refer to the above? Baidu encyclopedia-area code