South China's Guangdong province is leading the country in 5G telecommunications infrastructure with 21,473 base stations already set up by the end of September.

Guangzhou, the province's capital, had the largest share, with 10,626 base stations, followed by Shenzhen, Foshan and Dongguan, according to Nanfang Daily on Friday.

The four cities, with Zhuhai, another city in Guangdong, are among the first 50 cities in the country to have commercial 5G services.

By the end of this year, Guangdong is expected to have 34,800 5G base stations.

China officially kicked off commercialization of 5G services on Thursday, with the nation's big three telecom operators rolling out their 5G data plans.