The prefix Z is used for the People's Republic of China with three exceptions: ZK is used for North Korea ZM is used for Mongolia ZZZZ is a special code which is used when no ICAO code exists for the airport. It is often used by helicopters not operating at an aerodrome. Z (except ZK, ZM and ZZZZ) - Mainland China ZB (Northern China: Beijing, Tianjin, Inner Mongolia, Shanxi, Hebei) ZBAA (PEK) – Beijing Capital International Airport – Beijing ZBAD (PKX) – Beijing Daxing International Airport – Beijing ZBAL (AXF) – Alxa Left Banner Bayanhot Airport – Alxa Left Banner, Inner Mongolia ZBAR (RHT) – Alxa Right Banner Badanjilin Airport – Alxa Right Banner, Inner Mongolia ZBBB – Beijing Xijiao Airport – Beijing ZBCD (CDE) – Chengde Puning Airport – Chengde, Hebei ZBCF (CIF) – Chifeng Yulong Airport – Chifeng, Inner Mongolia ZBCZ (CIH) – Changzhi Wangcun Airport – Changzhi, Shanxi ZBDH (BPE) – Qinhuangdao Beidaihe Airport – Qinhuangdao, Hebei ZBDS (DSN) – Ordos Ejin Horo Airport – Ordos (Dongsheng), Inner Mongolia ZBDT (DAT) – Datong Yungang Airport – Datong, Shanxi ZBEN (EJN) – Ejin Banner Taolai Airport – Ejin Banner, Inner Mongolia ZBER (ERL) – Erenhot Saiwusu International Airport – Erenhot, Inner Mongolia ZBES (YIE) – Arxan Yi'ershi Airport – Arxan, Inner Mongolia ZBHD (HDG) – Handan Airport – Handan, Hebei ZBHH (HET) – Hohhot Baita International Airport – Hohhot, Inner Mongolia ZBHZ (HUO) – Holingol Huolinhe Airport – Holingol, Inner Mongolia ZBLA (HLD) – Hulunbuir Hailar Airport – Hailar, Inner Mongolia ZBLF (LFQ) – Linfen Qiaoli Airport – Linfen, Shanxi ZBLL (LLV) – Lüliang Airport – Lüliang, Shanxi ZBMZ (NZH) – Manzhouli Xijiao Airport – Manzhouli, Inner Mongolia ZBNY (NAY) – Beijing Nanyuan Airport – Beijing ZBOW (BAV) – Baotou Erliban Airport – Baotou, Inner Mongolia ZBSH – Qinhuangdao Shanhaiguan Airport – Qinhuangdao, Hebei ZBSJ (SJW) – Shijiazhuang Zhengding International Airport – Shijiazhuang, Hebei ZBTJ (TSN) – Tianjin Binhai International Airport – Tianjin ZBTL (TGO) – Tongliao Airport – Tongliao, Inner Mongolia ZBTS (TVS) – Tangshan Sannühe Airport – Tangshan, Hebei ZBUC (UCB) – Ulanqab Jining Airport – Ulanqab, Inner Mongolia ZBUH (WUA) – Wuhai Airport – Wuhai, Inner Mongolia ZBUL (HLH) – Ulanhot Airport – Ulanhot, Inner Mongolia ZBXH (XIL) – Xilinhot Airport – Xilinhot, Inner Mongolia ZBXT (XNT) – Xingtai Dalian Airport – Xingtai, Hebei ZBXZ (WUT) – Xinzhou Wutaishan Airport – Xinzhou, Shanxi ZBYC (YCU)