Joke Collection Website - Public benefit messages - The SMS alarm number is 12 1 10+ the last three digits of the area code. What about a city with a three-digit area code? It is not clearly stated that the area code is three digits.

The SMS alarm number is 12 1 10+ the last three digits of the area code. What about a city with a three-digit area code? It is not clearly stated that the area code is three digits.

Hello, the general area code is four digits. For example, 0825-8524-11indicates that the last three digits of the area code indicate 825 (that is, it is sent to 12 10828).

There is also a three-digit China area code with three digits: Beijing 0 10 Guangzhou 020 Shanghai 02 1 Tianjin 022 Chongqing 023 Shenyang 024 Nanjing 025 Wuhan 027 Chengdu 028 Xi 'an 029.