Where is the home phone number at the beginning? My phone number is Guangzhou, Guangdong, where is it in detail.

The number 2 in Guangzhou starts with Netcom and Telecom. If it is telecom, it is basically in Baiyun District. If it is Netcom, it is possible in every district. Generally, Netcom is concentrated in Tianhe, Haizhu and Panyu.