Indonesia Telecoms Market Report

Telecoms, Mobile and Broadband - Statistics and Analyses

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Publication Date: June 2026

Report Pages: 174

Indonesia opens its first National Data Centre

Indonesia comprises the world’s largest archipelago, and as such the country faces a range of obstacles in terms of enabling widespread access to quality telecom services covering its population. Geographical challenges have been exacerbated by a variety of social, political, and economic problems over the years, which have kept the country’s wealth distributed very thinly.

Many islands are sparsely populated, which has rendered the deployment of fixed-line infrastructure on a broad scale largely impractical. Fixed infrastructure remains concentrated around major urban centres, though its reach has been gradually expanded. The relatively low broadband penetration rate is partly due to under-investment by the previously state-owned incumbent Telkom, though in recent years more effort has been made to address poor connectivity in outlying areas, where a good proportion of the population resides with limited internet coverage. There has been renewed activity in laying fibre cables (though mostly again concentrated in built-up areas, where the return on investment is more secure), but the bundling of fixed-line telephony with TV and internet services will see the country’s teledensity stabilise for the near future. For all that, Indonesia’s telecom sector is largely focussed on mobile connectivity. The mobile market is highly competitive, and while the number of subscribers has fallen in recent years, bringing the penetration rate down to about 121% by the end of 2025, slow growth is anticipated over the next few years.

With the near universal availability of LTE, the mobile operators have focussed on expanding the reach of 5G services. Telkomsel was the first to provide a commercial 5G service, in Jakarta in May 2021, followed by IOH in Solo shortly afterwards. However, the rollout of 5G was hampered by the lack of available spectrum. Telkomsel was obliged to launch services using limited spectrum in the 2.3-2.4GHz band, which initially was only supported by a small number of handsets. Much of the LTE spectrum has had to be re-farmed from broadcasting services. Telkomsel was able to alleviate some of the pressure on its limited spectrum holdings after having secured 20MHz of spectrum in the 2.1GHz band at auction in November 2022. Some relief from the poor availability of suitable spectrum will result from the award of 80MHz of spectrum in the 1.4GHz range. Three telcos were approved to proceed with their applications when the process started in October 2025.

Key Developments

  • Smartfren Telecom and Smart Telecom merge with XL Axiata to form XLSmart Telecom.
  • The first of three National Data Centres is opened to consolidate government data.
  • Internet Mulia Untuk Negeri signs an MoU to lease Link Net's fibre infrastructure and so expand the reach of its digital services.
  • Kemkomdigi starts the process to auction spectrum in the 1.4GHz range for mobile broadband.
  • Telkom Indonesia spins-off of its wholesale fibre unit to its subsidiary Telkom Infrastruktur Indonesia.
  • IndiHome is merged with Telkomsel.
  • Telkom increases its data centre capacity from 42MW to 55MW.
  • Report update includes the regulator's recent market data releases, telcos' operating and financial data to Q3 2025, updated Telecom Maturity Index charts and analyses, recent market developments.

Key companies mentioned in this report:

Telkom, Indosat Ooredoo, Bakrie Telecom, Telkomsel, XL Axiata, 3 Indonesia, Smartfren, STI, Internux (Bolt!), TelkomNet, Link Net, MNC Kabel Mediacom, Biznet Networks, MyRepublic

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