1, China domestic long-distance code (area code)+domestic long-distance code (area code)+telephone number.

2. It must be noted that all area codes cannot start with the long-distance pilot number, that is, "00" or "0" cannot be used.

3. For example, the number in Beijing cannot be: 0086-0/kloc-0-66778899, nor can it be: 0086-/kloc-0-6677899, but it must be: 86- 10-6677899.

Telecom service numbers starting with 10, such as 103 international semi-automatic registration, 108 international collect call, 10000 China Telecom Service Center,100 China Unicom Service Center,/kloc-0. 1001/China Unicom recharge inquiry service line, 10050 China tietong service center, 10070 China satellite service center, 10086 China mobile service center, etc.

At the beginning of 12, give the civil special number, such as121(weather forecast), 122 (traffic accident alarm, some cities have merged with 1 10). 123 12 (Intellectual Property Protection Reporting Center), 123 15 (Consumer Complaint Hotline), 123 19 (Urban Construction Services).

12348 (legal consultation), 12358 (price reporting center), 12365 (quality supervision), 12366 (tax service), 12369 (environmental complaint),

Therefore, when assigned to mobile phone users, the number segment starts with 13. Later, 130~ 132 was designated as Unicom, and 134~ 139 was designated as Mobile.

3G mobile phones with TD-SCDMA serial numbers beginning with 188 will have pre-selected test users using the mobile phone numbers beginning with "188" one after another, taking the lead in trying out TD-SCDMA networks in several big cities such as Beijing, Qingdao, Xiamen and Baoding.