中国联通
China United Network Communications Group Co., Ltd. (Pinyin: Zhōngguó liánhé wǎngluò tōngxìn jítuán yǒuxiàn gōngsī) or China Unicom ( Pinyin: Zhōngguó liántōng) (CUniq in short) is a Chinese state-owned telecommunications operator of China. China Unicom is the world's sixth-largest mobile service provider by subscriber base.