100 16 is the service number of China Unicom. 100 16 special lines have different functions in different provinces. In some provinces, 100 16 has the same function as 100 10 customer service line, while in some provinces, 186 and 156 cards can be purchased, and wireless network cards can also be purchased.
The following areas provide "3G 186 Reservation" service: Beijing, Chongqing, Guangdong, Hebei, Henan, Liaoning, Heilongjiang, Hunan, Jiangxi, Yunnan, Shaanxi, Gansu, Ningxia, Qinghai, Xinjiang and other *** 15 areas. Among them, "100 16" in Heilongjiang and Hunan provinces is the reservation hotline with the number 186.
12 provinces provide "the world's wind energy first. 156 reservation ",namely: Beijing, Shanghai, Hubei, Shanxi, Fujian, Yunnan, Shaanxi, Gansu, Qinghai and Xinjiang. Among them, "100 16" in Shanxi Province is an appointment hotline with the number 156.
Business:
China Unicom is mainly engaged in GSM, WCDMA and FDD-LTE mobile network services, fixed communication services, domestic and international communication facilities services, satellite international private line services, data communication services, network access services and various telecom value-added services, as well as system integration services related to communication information services.
On June 6, 2009, the former China United Communications Co., Ltd. and the former China Network Communications Group Company were reorganized and merged, and the new company was renamed as China United Network Communications Group Co., Ltd. In order to distinguish it from China Unicom before the merger, the industry usually called it "New Unicom".
Reference to the above content: Baidu Encyclopedia-China Unicom