Mobile Telecommunication Company of Iran (MCI) –Public Company (Public Joint Stock Company)- also known under its brand name Hamrah-e-Aval (Persian: همراه اول The First Operator) is Iran's first and largest mobile phone network operator. MCI is a subsidiary of the Telecommunication Company of Iran and it has over 18 million postpaid and over 47 million prepaid subscribers
In 2010, 5.5% of the MCI shares were offered on the Iranian over-the-counter market (Farabourse). This was the largest IPO to date in the Iranian OTC equity market.
Now 90% of MCI's shares belongs toTCI holding (Public), and 10% of shares is public at Tehran Stock Exchange.
In 2015, MCCI launched 3G and 4G technologies by a new brand name as Notrino.