.cn is the country code top-level domain (ccTLD) for the People's Republic of China introduced on 28 November 1990. Domain name administration in mainland China is managed through a branch of the Ministry of Industry and Information. The registry is maintained by China Internet Network Information Center (CNNIC). Entities connected to Hong Kong, Macau, and Taiwan often use .hk, .mo, .tw respectively, despite their corresponding second-level domains under .cn available for those regions. The Chinese script internationalized country codes are ".中国" (Simplified Chinese) and ".中國" (Traditional Chinese): both have been reserved but the former is more in line with present-day mainland Chinese orthography. Second-level domains Any individual may register for second-level domain names. However, the registry has created a set of predefined second-level domains for certain types of organizations and geographic locations. Registrations for such third-level domains were available before second-level domains became available in 2003, and registrants of third-level domains were given priority for names at the second level. Generic second-level domains ac.cn : Academic and research institutions com.cn : Industrial, commercial, financial enterprises and individuals edu.cn : Educational institutions (usually universities and colleges) gov.cn : Government departments (both central and local governments) mil.cn : Military organizations net.cn : Networks, NICs and NOCs org.cn : Non-profit organizations Second-level domains of provinces The two-letter abbreviations are the same as those found in the People's Republic of China National Standards "Codes for the administrative divisions of the People's Republic of China (GB/T 2260-2002)." ah.cn : Anhui Province bj.cn : Beijing Municipality cq.cn : Chongqing Municipality fj.cn : Fujian Province gd.cn : Guangdong Province gs.cn : Gansu Province gz.cn : Guizhou Province gx.cn : Guangxi Province ha.cn : Henan Province hb.cn : Hubei Province he.cn : Hebei Province hi.cn : Hainan Province hl.cn : Heilongjiang Province hn.cn : Hunan Province jl.cn : Jilin Province js.cn : Jiangsu Province jx.cn : Jiangxi Province ln.cn : Liaoning Province nm.cn : Nei Mongol Autonomous Region nx.cn : Ningxia Hui Autonomous Region qh.cn : Qinghai Province sc.cn : Sichuan Province sd.cn : Shandong Province sh.cn : Shanghai Municipality sn.cn : Shaanxi Province sx.cn : Shanxi Province tj.cn : Tianjin Municipality xj.cn : Xinjiang Uygur Autonomous Region xz.cn : Xizang Autonomous Region yn.cn : Yunnan Province zj.cn : Zhejiang Province Internationalized domain names with Chinese characters Internationalized domain names with Chinese characters may be registered at the second level under the .cn top-level domain. On 25 June