Indosat

PT Indosat Tbk, trading as Indosat Ooredoo Hutchison, abbreviated as IOH, is an Indonesian telecommunications provider which is owned by Ooredoo Hutchison Asia, a joint venture between Ooredoo and Hutchison Asia Telecom Group (a part of CK Hutchison Holdings) since 2022. The company offers wireless services for mobile phones and, to a lesser extent, broadband internet lines for homes. Indosat operates its wireless services under two brands: IM3 and Three (3). These brands differ by their payment model (pre-paid vs. post-paid) as well as pricing. Indosat also provides other services such as IDD, fixed telecommunications, and multimedia.

In February 2013, Qtel, a majority stakeholder in Indosat, rebranded itself as Ooredoo. This was followed by a renaming of all their subsidiaries across multiple countries. As such, Indosat was renamed Indosat Ooredoo on November 19, 2015.

As of Q4 2018, Indosat had 58 million subscribers. This is a sharp decrease from 2017, when the number was reported as 110 million. The market share was 16.5%, making it the second largest mobile network operator in the country.