Iran's telecommunications industry is almost entirely state-owned, dominated by the Telecommunication Company of Iran (TCI). Fixed-line penetration in 2004 was relatively well-developed by regional standards, standing at 22 lines per 100 people, higher than Egypt with 14 and Saudi Arabia with 15, although behind the UAE with 27. Iran had more than 1 mobile phone per inhabitant by 2012.

The National Information Network (NIN) (Persian: شبکۀ ملی اطلاعات, Shabake-ye Melli-ye Ettelā'āt), also known as National Internet in Iran and the Iranian intranet, is an ongoing project to develop a secure, stable infrastructure network and national intranet in Iran.