Tanzania Telecommunications Corporation, formerly known as Tanzania Telecommunications Company Limited (TTCL), is the oldest and largest fixed line telecommunications company in Tanzania. The company was established in 1993, following the split of the Tanzania Posts and Telecommunications Corporation. TTCL was wholly owned by the Government of Tanzania until the partial privatisation of the company on 23 February 2001. TTCL is governed by the Tanzania Telecommunications Act of 1993 and is the licensee for fixed basic telephone services in Tanzania mainland and Zanzibar.
The company underwent partial privatisation on 23 February 2001, with Celtel International and the German firm Detecon obtaining 35% shares from the Government of Tanzania. However, in February 2016, Bharti Airtel, which had inherited the stake from Zain, agreed to sell its shares back to the government. The company returned to being entirely state owned on 23 June 2016.