Best ISP in Indonesia for 2026

Top ISPs in Indonesia at a glance

ISP breakdown

1. IndiHome (Telkom)

IndiHome (Telkom Indonesia) is Indonesia's largest fixed-line ISP with the widest national coverage. Fiber speeds up to 300 Mbps in major cities. Coverage across Java, Sumatra, and other islands. Quality varies significantly by region.

2. Biznet

Biznet offers dedicated fiber broadband in Jakarta, Surabaya, Bandung, and other Indonesian cities. Consistent speeds and no hard data caps make it a premium choice for business and tech users.

How to pick the right plan in Indonesia

• Match the plan to actual usage, not headline speed. A 1 Gbps plan only matters if multiple people stream 4K, run cloud backups, or transfer large files at once. For a couple of streams and video calls, 200–500 Mbps is plenty.
• Prioritise upload symmetry if you work from home. Fibre plans in Indonesia are usually symmetric; legacy DSL and cable hybrids are not. Asymmetric plans cripple video calls, cloud sync, and uploading large files even when download looks fast.
• Watch for promotional vs renewal pricing. Most ISPs advertise a 6–12 month introductory rate that doubles afterwards. Check the post-promo price before signing — that's what you actually pay long-term.
• Check the router they ship. A flagship plan on a 4-year-old ISP-issued router still tops out at the router's Wi-Fi 5 speed. If you have Wi-Fi 6/6E devices, ask whether you can BYO router or upgrade the issued model.
• Read the fair-use policy. Some plans deprioritise traffic after a monthly threshold (often 1–3 TB) or during peak hours. The fine print is where the real bottleneck hides.

What to test after installation

Within the first 14 days of a new connection, run a wired speed test at three different times of day (early morning, evening peak, and late night). If sustained throughput is consistently below 80% of the advertised plan speed on a wired connection, escalate to your ISP within the cooling-off window — most providers in Indonesia are required to fix or release you from the contract.

Also test ping and jitter — see our guides on latency, jitter, and packet loss to interpret the numbers.

Frequently asked questions

Fibre vs cable vs 5G fixed wireless — which is best?

Fibre (FTTH) wins on reliability, symmetric upload, and consistent latency. Cable can hit similar download speeds but uploads are typically 10–20% of download and contention is higher at peak hours. 5G fixed wireless is improving fast and can be a strong option in areas without fibre, but performance varies with cell-tower load and weather.

Does the contract length actually matter?

Yes — long contracts (12–24 months) usually get the better headline price, but make it expensive to leave if service quality deteriorates or a faster competitor launches in your area. Read the early-termination fee before signing.

Is the ISP-supplied router good enough?

It depends. Newer Wi-Fi 6 / Wi-Fi 6E gateways from major ISPs are usually fine for typical homes. Older Wi-Fi 5 (802.11ac) units bottleneck plans above ~400 Mbps over wireless. If you can't change the router, hardwire your most important devices over Ethernet to bypass the wireless ceiling.

How to check ISP availability at your address

ISP availability varies at the address level — two houses on the same street can have different technology (fiber vs cable vs DSL) available. Always check each provider's address-level tool, then run a speed test after installation to verify real-world performance.

Why do speeds in Indonesia vary so much between cities and rural areas?

Indonesia is an archipelago of over 17,000 islands spanning roughly 5,000 kilometres from west to east, which makes building a uniform national broadband infrastructure one of the most challenging tasks in the world. IndiHome's backbone relies on Telkom Indonesia's submarine cable network connecting the major islands, and last-mile quality varies enormously depending on distance from the nearest fiber node, local infrastructure age, and population density. In Jakarta, Surabaya, and Bandung, fiber last-mile connections deliver consistent speeds close to plan tiers. In smaller cities and rural Kalimantan, Sulawesi, or Papua, connections often rely on older copper or microwave backhaul, and real-world speeds can be a fraction of the advertised plan. The government's Palapa Ring project has improved backbone connectivity across outer islands, but last-mile investment remains uneven. When comparing plans, prioritise providers with local fiber infrastructure in your specific city rather than national coverage claims.