Telkomsel network coverage across Indonesia as of 2026

Telkomsel Review: Coverage & Performance In Indonesia 2026

Indonesia's largest mobile network operator PT Telekomunikasi Selular (Telkomsel) serves 159.4 million subscribers with over 97% population coverage, 5G service across 56 cities, and median 5G download speeds of 88.03 Mbps — the fastest in the country, according to the Ookla Speedtest Awards Q1–Q2 2025.

Introduction

Indonesia's largest mobile network operator PT Telekomunikasi Selular (Telkomsel) operates as a subsidiary of PT Telkom Indonesia (Persero) Tbk (IDX: TLKM), serving 159.4 million subscribers and commanding a 50.9% mobile market share as of May 2025, according to market intelligence published by MatrixBCG in August 2025.

Telkomsel delivers 4G LTE service to over 97% of Indonesia's population and operates Indonesia's most extensive Hyper 5G network across 56 cities and regencies, supported by more than 1,400 5G base transceiver stations (BTS). The carrier earned the Ookla Speedtest Award for Fastest 5G Mobile Network in Indonesia for Q1–Q2 2025, achieving a median 5G download speed of 88.03 Mbps and an upload speed of 27.00 Mbps, according to the Ookla Speedtest Awards Indonesia 2025.

This review covers Telkomsel's 4G and 5G network performance, speed test results across Jakarta, Bali, and Makassar, customer service channels, mobile app features, international roaming reach across 181 countries, eSIM availability, and a direct comparison against its top two competitors — Indosat Ooredoo Hutchison and XLSmart.

Compare Indosat Ooredoo Hutchison and XLSmart for additional mobile carrier options in Indonesia.

Network Coverage And Performance

Telkomsel covers over 97% of Indonesia's population with 4G LTE service and operates its Hyper 5G network across 56 cities and regencies nationwide. Ookla awarded Telkomsel its Best Mobile Coverage award with a Coverage Score of 889, based on Speedtest Intelligence data from Q4 2023, confirming the carrier's nationwide infrastructure lead.

Coverage spans Indonesia's 38 provinces, with the densest signal concentration across Java, Bali, Sulawesi, and Sumatra. Rural and eastern Indonesian regions such as Papua and Maluku receive 4G service through Telkomsel's ongoing network equity expansion program, which targets 97.5% 4G coverage nationally by 2026, according to Indonesia Business Post.

4G And 5G Availability

Telkomsel's 4G LTE network operates on the 900 MHz, 1800 MHz, and 2100 MHz frequency bands, while its Hyper 5G service uses Sub-6 GHz spectrum, delivering download speeds over 610 Mbps at peak performance in Hyper 5G zones, according to Ericsson and Telkomsel's joint network announcement published June 2025.

Telkomsel commercially launched 5G service in 2021 and has since expanded to over 1,400 5G BTS across key locations, including Alam Sutera (Banten), Bumi Serpong Damai (Banten), Pantai Indah Kapuk (DKI Jakarta), Kelapa Gading (DKI Jakarta), and Pondok Indah (DKI Jakarta). The 5G rollout prioritizes high-density urban corridors, business districts, and airport routes — including the Soekarno-Hatta to Halim Perdanakusuma airport connection in Greater Jakarta, according to TelecomTV published December 2024.

Cities with confirmed active Hyper 5G coverage include Jakarta, Surabaya, Bandung, Medan, Makassar, Denpasar (Bali), Batam, and Yogyakarta, among 56 total cities as of 2025.

Speed Test Results

Telkomsel delivers a median overall download speed of 31.95 Mbps and a median upload speed of 13.65 Mbps across all technologies in H1 2024, leading all Indonesian carriers, according to the Ookla Speedtest Connectivity Report Indonesia H1 2024 published July 2024. On 5G specifically, Telkomsel achieves a median download speed of 88.03 Mbps and upload speed of 27.00 Mbps as of Q1–Q2 2025, according to the Ookla Speedtest Awards Indonesia 2025.

Telkomsel speed test results across Indonesia's major cities, H1 2024 – Q2 2025

Learn more about 5G network performance in Indonesia for detailed technical comparisons.

Customer Service And Support

Telkomsel operates five primary customer service channels, including a dedicated call center, physical GraPARI stores, online GraPARI, live chat, and in-app support. The carrier's Trustpilot rating stands at 1.8 out of 5 based on user reviews as of August 2025, reflecting ongoing challenges in support responsiveness for complex account and roaming issues.

• Call Center: Dial 188 from any Telkomsel number — available 24 hours a day, 7 days a week

• GraPARI Physical Stores: Hundreds of GraPARI outlets across Indonesia's 38 provinces, including Jakarta, Surabaya, and Bali, for SIM replacement, plan upgrades, and account management

• GraPARI Online: Available at graparionline.telkomsel.com for SIM card services, plan migrations, and account queries without in-store visits

• MyTelkomsel App Support: In-app chat and self-service tools; rated 4.5 stars on the Apple App Store and 3.7 stars on Google Play

• Email Support: Accessible through the official GraPARI Online portal for non-urgent service requests

Telkomsel customer service channels as of 2026

Compare customer service options across Indonesia's carriers in the comprehensive carrier support comparison guide.

Additional Services And Features

Telkomsel provides these value-added services for subscribers across connectivity, loyalty, and digital lifestyle categories:

• International Roaming (RoaMAX): Active in 181 countries with 4G and 5G technology partnerships, including Asia, Australia, Europe, the United States, and Canada; packages start from Rp50,000 for 7-day bundles, according to Telkomsel's official roaming page

• eSIM RoaMAX: Telkomsel offers eSIM roaming packages covering 80+ countries under its Western bundle and individual-country packages for Singapore, Malaysia, Japan, South Korea, Australia, New Zealand, Thailand, China, Taiwan, the United States, and Hong Kong — activated digitally without requiring a physical SIM swap

• MyTelkomsel App Features: Data usage monitoring and real-time quota tracking, bill payment and top-up, plan purchase and package changes, customer support chat, GraPARI store locator, loyalty points tracking (Telkomsel Poin), and Hyper 5G coverage map viewing

• Telkomsel Poin Rewards Program: Subscribers earn loyalty points on every transaction; points are redeemable for data packages, device discounts, partner merchant vouchers (including entertainment, food, and travel), and eSIM RoaMAX bonuses (50 Poin per roaming purchase)

• 5G Device Support: Hyper 5G services are compatible with 5G-enabled devices; in Batam, 5G device penetration reached 23% of Telkomsel's total subscriber base as of June 2025, according to the Ericsson–Telkomsel Hyper 5G announcement

• Family and Multi-SIM Plans: Available under the Telkomsel Halo postpaid platform, supporting shared data and consolidated billing across household lines

MyTelkomsel app interface and key features as of 2026

Discover more about eSIM technology and activation in Indonesia for modern connectivity options while traveling abroad.

Telkomsel Pros And Cons

Advantages

• Widest 4G Population Coverage: Telkomsel covers over 97% of Indonesia's population with 4G LTE — the highest among all national operators — earning Ookla's Best Mobile Coverage Award with a Coverage Score of 889 in Q4 2023

• Fastest 5G Network In Indonesia: Telkomsel achieved a median 5G download speed of 88.03 Mbps and upload speed of 27.00 Mbps in Q1–Q2 2025, earning Ookla's Fastest 5G Mobile Network Award for Indonesia, according to Ookla Speedtest Awards 2025

• Broadest 5G Geographic Reach: Hyper 5G operates across 56 cities and regencies nationwide, supported by over 1,400 5G BTS — the most extensive 5G infrastructure among Indonesian carriers, since the network's commercial launch in 2021

• Market-Leading Subscriber Base: With 159.4 million subscribers and a 50.9% market share as of May 2025, Telkomsel delivers the largest peer network and the highest likelihood of consistent nationwide coverage, according to MatrixBCG market analysis August 2025

Disadvantages

• Low Customer Satisfaction Score: Telkomsel holds a 1.8 out of 5 rating on Trustpilot as of August 2025, with reviewers citing unauthorized charges, slow issue resolution (delays of 72+ hours reported), and unresponsive support agents as recurring problems

• Google Play App Rating Below Industry Benchmark: The MyTelkomsel app earns 3.7 stars on Google Play — below the 4.0 threshold generally considered a strong rating — with user complaints about intrusive advertising and limited bank integration options within the app

• 5G Coverage Concentrated In Urban Corridors: Despite 56 cities having Hyper 5G access, the network remains concentrated in business districts, premium residential zones, and major transport routes, leaving suburban and rural users dependent on 4G LTE connectivity

Telkomsel Vs Competitors

Indonesia's mobile market operates as a three-player competitive landscape, with Telkomsel holding the dominant position, Indosat Ooredoo Hutchison (IOH) ranking second with approximately 94.7 million subscribers, and the newly merged XLSmart (XL Axiata combined with Smartfren) reaching 94.5 million subscribers as of end 2024, according to Pestel Analysis published December 2025.

Telkomsel, Indosat Ooredoo Hutchison, and XLSmart — key performance metrics comparison, 2025

Telkomsel leads definitively on network coverage, 5G speed, and subscriber scale. Indosat Ooredoo Hutchison offers a competitive alternative for price-sensitive users in Java and Sumatra, while XLSmart (formerly XL Axiata) delivers strong 5G video streaming performance, earning Ookla recognition for best 5G video experience in Indonesia during H2 2024.

Read the detailed Telkomsel vs Indosat Ooredoo Hutchison comparison or explore the XLSmart full review for alternative carrier options in Indonesia.

Frequently Asked Questions

Does Telkomsel Have 5G Coverage In Indonesia?

Telkomsel operates Indonesia's most extensive Hyper 5G network, covering 56 cities and regencies with over 1,400 5G base transceiver stations (BTS). The carrier commercially launched 5G in 2021 and has since expanded to key urban areas including Jakarta, Surabaya, Bandung, Denpasar (Bali), Makassar, and Batam. Telkomsel earned the Ookla Speedtest Award for Best 5G Network in Indonesia for Q1–Q2 2025, confirming the network's industry leadership, according to the Ookla Speedtest Awards Indonesia 2025.

How Fast Is Telkomsel's Mobile Internet Speed?

Telkomsel delivers a median overall download speed of 31.95 Mbps and upload speed of 13.65 Mbps across all network technologies, and a median 5G download speed of 88.03 Mbps with upload speed of 27.00 Mbps. Telkomsel ranked as Indonesia's fastest mobile provider in H1 2024, leading over XL (24.26 Mbps) and IM3 Ooredoo (23.28 Mbps) in median download speed, according to the Ookla Speedtest Connectivity Report Indonesia H1 2024 published July 2024. Under peak 5G conditions in Hyper 5G zones, download speeds exceed 610 Mbps, according to Ericsson's June 2025 network announcement.

What Areas Does Telkomsel Cover In Indonesia?

Telkomsel's 4G LTE network reaches over 97% of Indonesia's population across all 38 provinces, including Java, Bali, Sumatra, Kalimantan, Sulawesi, and Papua. The strongest coverage concentrations exist in Jakarta, Surabaya, Bandung, Medan, Makassar, and Bali. Rural and eastern Indonesian regions receive 4G service as part of Telkomsel's network equity program targeting 97.5% national 4G coverage by 2026, according to Indonesia Business Post.

How Do I Contact Telkomsel Customer Service?

Telkomsel customer service is reachable by calling 188 from any Telkomsel SIM, available 24 hours a day, 7 days a week. Additional contact options include GraPARI physical stores across Indonesia's 38 provinces, the GraPARI Online portal at graparionline.telkomsel.com, in-app support within the MyTelkomsel app, and email submission through the online portal. For roaming and eSIM queries, Telkomsel also provides support through the official website at telkomsel.com.

Does Telkomsel Support eSIM?

Telkomsel supports eSIM through its RoaMAX eSIM service, which provides digital SIM activation for international roaming without requiring a physical SIM card. RoaMAX eSIM packages cover individual countries — including Singapore, Malaysia, Japan, South Korea, Australia, New Zealand, Thailand, China, Taiwan, the United States, and Hong Kong — as well as a multi-country Western bundle covering 80+ countries across Asia, Australia, Europe, and North America, starting from Rp50,000 for 7-day packages, according to the Telkomsel official roaming page.

What Countries Does Telkomsel Roaming Cover?

Telkomsel's RoaMAX international roaming service covers 181 countries across Asia, Australia, Europe, the Americas, the Middle East, and Africa. The network partners with leading operators worldwide to provide 4G and 5G roaming quality. Roaming activation is available through the MyTelkomsel app, by calling 188, or through GraPARI stores. eSIM RoaMAX covers a subset of 80+ countries under its Western multi-country package, according to the Telkomsel official roaming page.

How Does Telkomsel Compare To Indosat Ooredoo Hutchison?

Telkomsel leads Indosat Ooredoo Hutchison on network coverage (97%+ vs approximately 90% population coverage), download speed (31.95 Mbps vs 23.28 Mbps median), and 5G deployment scale (56 cities vs limited 5G rollout). Indosat Ooredoo Hutchison serves 94.7 million subscribers and holds approximately 28% market share as of 2024. For subscribers prioritizing coverage in eastern Indonesia, rural areas, or needing the fastest 5G speeds, Telkomsel delivers the stronger network, according to the Ookla Speedtest Connectivity Report Indonesia H1 2024 published July 2024.

What Is The Best Telkomsel Feature?

Telkomsel's strongest feature is its Hyper 5G network, which delivers Indonesia's fastest median 5G download speed of 88.03 Mbps and achieves peak speeds exceeding 610 Mbps in dense urban 5G zones. The Hyper 5G network also achieves latency as low as 14 milliseconds in optimized coverage areas, making it suitable for real-time gaming, 4K video streaming, and enterprise AI applications, according to Ericsson's Telkomsel Hyper 5G Batam announcement published June 2025.

Conclusion

Telkomsel delivers Indonesia's broadest 4G coverage (97%+ population), fastest 5G speeds (88.03 Mbps median), and largest network footprint — making it the strongest choice for users who prioritize reliable, high-speed connectivity across all 38 provinces.

Explore more mobile carrier options through the complete Indonesia carrier directory or learn how to choose the right carrier for your needs in Indonesia.

Last Updated: March 5, 2026

Sources:

1. OpenSignal, Indonesia Mobile Network Experience Report, December 2025

2. Ookla, Speedtest Connectivity Report — Indonesia H1 2024, July 2024

3. Ookla, Speedtest Awards Indonesia — Fastest Mobile Network Q1–Q2 2025

4. Ericsson, Telkomsel and Ericsson Launch Seamless Hyper 5G in Batam, June 2025

5. Telkomsel Official Website — telkomsel.com

6. Trustpilot, Telkomsel Customer Reviews, August 2025

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• 5G Coverage Map And Availability Guide For Indonesia

• How To Choose The Right Mobile Carrier In Indonesia