Taiwan Mobile 5G and 4G network coverage across Taiwan's 22 counties and municipalities as of 2024

Taiwan Mobile Review: Coverage And Performance In Taiwan 2026

Taiwan Mobile Co., Ltd. delivers 97.20% 5G population coverage across Taiwan, a median download speed of 76.24 Mbps, and approximately 10 million subscribers — making it Taiwan's second-largest mobile network operator by subscriber count as of 2025.

Introduction

Taiwan Mobile Co., Ltd. (台灣大哥大股份有限公司) operates as Taiwan's second-largest integrated telecommunications carrier, serving approximately 10 million mobile subscribers with 97.20% 5G population coverage, a median all-technology download speed of 76.24 Mbps, and consolidated revenue of NT$199.4 billion (approximately USD 6.14 billion) in 2024, according to Taiwan Mobile's Annual Report published March 2025.

Taiwan Mobile delivers competitive nationwide 5G connectivity across Taiwan's 22 counties and municipalities, including offshore islands Kinmen and Matsu, with a 5G rural population coverage rate of 99.17% — a figure that surpasses its original 85% coverage target, according to Taiwan Mobile ESG Network Quality Report published 2024. The carrier holds approximately 20–25% of the Taiwan mobile telecom market by revenue, ranking behind Chunghwa Telecom and competitive with Far EasTone (FarEasTone Telecommunications), according to Market Report Analytics published January 2026.

This review covers Taiwan Mobile's network coverage and speed performance, customer service channels, additional services including eSIM and international roaming, and a data-driven comparison against its two principal competitors — Chunghwa Telecom and Far EasTone. Each section draws on verified data from Ookla Speedtest Intelligence, OpenSignal, the National Communications Commission (NCC) of Taiwan, and Taiwan Mobile's own published financial and ESG disclosures.

Compare Chunghwa Telecom and Far EasTone for additional mobile carrier options in Taiwan.

Network Coverage And Performance

Taiwan Mobile covers 97.20% of Taiwan's population with 5G service and maintains comprehensive 4G LTE coverage across all 22 counties and municipalities, including the outlying islands of Kinmen and Matsu. Following its merger with Taiwan Star Telecom in December 2023, Taiwan Mobile accelerated 5G deployment by integrating dual-operator radio resources, according to Taiwan Mobile ESG Network Quality Report published 2024.

Taiwan Mobile's 5G rural population coverage rate reached 99.17% by end of 2024, exceeding urban coverage metrics and demonstrating active investment in remote and offshore connectivity infrastructure. Nokia signed a one-year 5G contract extension with Taiwan Mobile in November 2024 to modernize thousands of existing LTE sites and implement Carrier Aggregation technology for improved throughput, according to Nokia Newsroom published November 2024.

4G And 5G Availability

Taiwan Mobile operates 5G services on 700 MHz (low-band) and 3500 MHz (mid-band, n78) frequencies, providing both wide-area coverage via 700 MHz and high-capacity urban throughput via 3500 MHz. The carrier launched 5G commercially on June 30, 2020, and held 5G penetration of 42.5% within its smartphone postpaid base as of Q2 2025, according to Taiwan Mobile Q2 2025 Results published August 2025.

4G LTE service operates across multiple bands including Band 3 (1800 MHz), Band 7 (2600 MHz), and Band 28 (700 MHz), providing consistent LTE coverage in urban centers including Taipei, Taichung, and Kaohsiung, as well as rural townships across northern, central, southern, and eastern Taiwan.

As of January 2025, Taiwan Mobile held approximately 3.13 million 5G subscribers out of a national 5G base exceeding 10 million users, placing it second behind Chunghwa Telecom (3.88 million 5G users), according to Taiwan News citing National Communications Commission data published January 2025.

Speed Test Results

Taiwan Mobile delivers a median all-technology download speed of 76.24 Mbps and a median 5G download speed of 214.07 Mbps, ranking third among Taiwan's three major mobile operators, according to Ookla Speedtest Connectivity Report Taiwan H2 2024 published April 2025.

Taiwan Mobile speed test results across Taiwan's major cities — Ookla Speedtest Intelligence H2 2024

Learn more about 5G network performance in Taiwan for detailed technical comparisons across all three major operators.

Customer Service And Support

Taiwan Mobile operates five customer service channels available 24 hours a day, 7 days a week, including a toll-free hotline, mobile app support, online chat, physical retail stores across Taiwan, and social media messaging via LINE and Facebook Messenger. Speedtest users rated Taiwan Mobile 3.46 out of 5 stars in consumer sentiment scoring during H2 2024, ranking second among Taiwan's three major carriers, according to Ookla Speedtest Connectivity Report Taiwan H2 2024 published April 2025.

• Phone Support: Dial 188 toll-free (from Taiwan Mobile numbers) or +886-2-6606-2999 (international), available 24 hours a day, 7 days a week

• Mobile App Support (Taiwan Big Action 台灣大哥大行動客服): In-app service requests, roaming activation, plan management, and real-time account status, with cumulative downloads exceeding 7.1 million as of March 2023

• Social Media Channels: Facebook Messenger and LINE official account for eSIM activation requests and general inquiries, available during business hours 9:00 AM – 9:00 PM (Taiwan Standard Time, UTC+8)

• Physical Retail Stores: Taiwan Mobile service centers and TWM stores distributed across Taipei, Taichung, Kaohsiung, Tainan, and 22 counties and municipalities throughout Taiwan

• Online Service Portal: My TWM web portal at taiwanmobile.com for bill payment, plan changes, usage tracking, and account management

Taiwan Mobile customer service contact channels and support options as of 2026

Compare customer service quality and channel availability in our comprehensive Taiwan carrier support comparison guide.

Additional Services And Features

Taiwan Mobile provides these value-added services for subscribers across postpaid, prepaid, and business plans:

• International Roaming: Nationwide and international roaming service covering Taiwan, Kinmen, Matsu, and partner networks across Asia, Europe, and the Americas; roaming activation completes in 3 steps via the mobile app in under 1 minute, according to Taiwan Mobile Press Release published March 2023

• Mobile App Features (Taiwan Big Action 台灣大哥大行動客服): Data usage tracking in real time, monthly bill payment, plan upgrade and downgrade, international roaming activation, customer service live chat, store locator, and loyalty rewards redemption

• eSIM Support: Taiwan Mobile supports eSIM since 2020 for compatible devices including iPhone XS and later, select Android flagships, and iPad models; activation requires contact via Facebook Messenger or LINE official account, according to Truely eSIM Review published October 2025

• Rewards and Loyalty Program (TWM Points): Subscribers earn TWM Points on monthly bills, device purchases, and partner transactions; points redeem for plan credits, device discounts, and partner brand vouchers across retail, dining, and entertainment categories

• 5G Device Support: Taiwan Mobile supports 5G NR (n78, n28) across all major smartphone brands including Apple iPhone 12 and later, Samsung Galaxy S21 and later, and ASUS ZenFone 5G series

• Family and Multi-Line Plans: Shared data pool options for 2–6 lines with tiered discounts on additional line monthly fees

• Home Broadband and Cable TV: Integrated telco-media bundles combining mobile, fiber broadband (300 Mbps and above tiers), and cable television via momo and TWM home services subsidiary

Taiwan Mobile Big Action app key features including data tracking, roaming activation, and bill payment

Discover more about eSIM technology and activation in Taiwan for modern connectivity options across all major carriers.

Taiwan Mobile Pros And Cons

Taiwan Mobile key strengths and limitations based on 2024–2025 performance data

Advantages

• Exceptional Rural 5G Coverage: Taiwan Mobile's 5G rural population coverage rate reached 99.17% by end of 2024, surpassing its own urban 5G rate of 97.20% and demonstrating industry-leading commitment to underserved regions, according to Taiwan Mobile ESG Network Quality Report 2024

• Offshore Island Connectivity: Taiwan Mobile extends full service to Kinmen and Matsu — outlying islands excluded by some operators — providing 4G and 5G coverage nationwide without geographic exceptions

• eSIM Availability Since 2020: Taiwan Mobile activated eSIM support earlier than many regional peers, supporting dual-SIM functionality for international travelers who insert a local SIM while retaining their home eSIM profile, according to Taiwan Mobile eSIM Service page 2024

• Consistent Quality Award (OpenSignal): Taiwan Mobile won the Consistent Quality award in the OpenSignal Taiwan Mobile Network Experience Report published June 2024, with a score of 83.1%, indicating reliable minimum-speed delivery across its network

• Strong Financial Stability: Taiwan Mobile achieved a record-high EPS of NT$4.57 in 2024 and received Fitch Ratings' AA-(twn) with Stable Outlook in November 2025, reflecting long-term operational and investment stability for service continuity

Disadvantages

• Third-Place All-Technology Download Speed: Taiwan Mobile recorded a median all-technology download speed of 76.24 Mbps in H2 2024, trailing Chunghwa Telecom (128.1 Mbps) and Far EasTone (77.21 Mbps), according to Ookla Speedtest Connectivity Report Taiwan H2 2024 published April 2025

• Third-Place 5G Download Speed: Taiwan Mobile's median 5G download speed of 214.07 Mbps in H2 2024 ranked below Chunghwa Telecom (346.2 Mbps) and Far EasTone (262.42 Mbps), a gap driven primarily by Chunghwa's superior 5G spectrum holdings

• eSIM Activation Requires Messaging Channel: Unlike self-service eSIM portals offered by some international carriers, Taiwan Mobile's eSIM activation requires manual contact via Facebook Messenger or LINE, adding friction for travelers requiring immediate digital SIM provisioning, according to Truely eSIM Review published October 2025

• Lower Market Share Than Chunghwa Telecom: Taiwan Mobile holds approximately 20–25% revenue market share versus Chunghwa Telecom's approximately 40%, limiting its negotiating leverage on roaming partnerships and enterprise contracts, according to Market Report Analytics published January 2026

Taiwan Mobile Vs Competitors

Taiwan's mobile telecom market concentrates among three major operators — Chunghwa Telecom, Taiwan Mobile Co., Ltd., and Far EasTone Telecommunications — which together account for the majority of Taiwan's approximately 29.69 million active mobile subscribers as of late 2024, according to National Communications Commission data cited by Taiwan News published January 2025. Taiwan Mobile differentiates itself through consistent rural 5G coverage and integrated media-telecom bundles, while Chunghwa Telecom leads on raw network speed and 5G coverage breadth.

Taiwan Mobile versus Chunghwa Telecom and Far EasTone across key 2024 performance metrics — Ookla Speedtest Intelligence H2 2024

Taiwan Mobile suits subscribers who prioritize rural and offshore island coverage consistency — particularly in Kinmen, Matsu, and remote township areas — while Chunghwa Telecom serves users demanding maximum 5G throughput, and Far EasTone offers a middle-ground option competitive on both speed and coverage. All three operators support eSIM and 5G on current flagship devices.

Read our detailed Taiwan Mobile vs Chunghwa Telecom comparison or explore Far EasTone's full carrier review for alternative options.

Frequently Asked Questions About Taiwan Mobile

Does Taiwan Mobile Have 5G Coverage In Taiwan?

Taiwan Mobile operates 5G coverage reaching 97.20% of Taiwan's population as of end of 2024, including a rural 5G population coverage rate of 99.17%. The carrier launched 5G on June 30, 2020, using 700 MHz (n28) low-band and 3500 MHz (n78) mid-band frequencies. 5G penetration in Taiwan Mobile's smartphone postpaid base reached 42.5% in Q2 2025, according to Taiwan Mobile Q2 2025 Results published August 2025.

How Fast Is Taiwan Mobile's Mobile Internet Speed?

Taiwan Mobile delivers a median all-technology download speed of 76.24 Mbps and a median 5G download speed of 214.07 Mbps nationally. In Taiwan's fastest city, Taipei, the market-wide median mobile download speed reaches 111.44 Mbps. Taiwan Mobile ranks third among Taiwan's three major operators on speed metrics, according to Ookla Speedtest Connectivity Report Taiwan H2 2024 published April 2025.

What Areas Does Taiwan Mobile Cover In Taiwan?

Taiwan Mobile covers all 22 counties and municipalities in Taiwan, including the outlying islands of Kinmen and Matsu, with both 4G LTE and 5G service. The carrier's 5G network is strongest in the five major metropolitan areas: Taipei, New Taipei, Taoyuan, Taichung, and Kaohsiung. Rural and remote region coverage reached 99.17% 5G population penetration by end of 2024, according to Taiwan Mobile ESG Network Quality Report 2024.

How Do I Contact Taiwan Mobile Customer Service?

Taiwan Mobile customer service is reachable 24 hours a day, 7 days a week via toll-free hotline 188 (from Taiwan Mobile numbers) or international number +886-2-6606-2999. Additional channels include the Taiwan Big Action mobile app (7.1 million cumulative downloads), LINE official account, Facebook Messenger, physical service centers across all major cities, and the My TWM online portal at taiwanmobile.com.

Does Taiwan Mobile Support eSIM?

Taiwan Mobile supports eSIM since 2020 for compatible devices including iPhone XS and later, select Samsung Galaxy flagships, and iPad Pro models with cellular. eSIM activation requires contacting Taiwan Mobile via Facebook Messenger or LINE official account rather than a self-service portal. The eSIM dual-SIM feature allows users to maintain a local physical SIM alongside the TWM eSIM profile when traveling internationally, according to Taiwan Mobile eSIM Service page 2024 and Truely eSIM Review October 2025.

What Countries Does Taiwan Mobile Roaming Cover?

Taiwan Mobile international roaming covers partner networks across Asia, Europe, and the Americas, with roaming activation available via the Taiwan Big Action app in 3 steps in under 1 minute. Travelers activate roaming on the same day or schedule it in advance through the app's 24-hour self-service roaming portal. Specific partner country lists and roaming rates are available on the official Taiwan Mobile website at taiwanmobile.com, according to Taiwan Mobile Press Release published March 2023.

How Does Taiwan Mobile Compare To Chunghwa Telecom?

Chunghwa Telecom leads Taiwan Mobile on median download speed (128.1 Mbps vs 76.24 Mbps), 5G download speed (346.2 Mbps vs 214.07 Mbps), and 5G coverage breadth, according to Ookla Speedtest Connectivity Report Taiwan H2 2024. Taiwan Mobile counters with a superior rural 5G coverage rate of 99.17% and Consistent Quality recognition from OpenSignal's June 2024 report. Chunghwa Telecom holds approximately 40% revenue market share versus Taiwan Mobile's 20–25%, according to Market Report Analytics published January 2026.

What Is The Best Taiwan Mobile Feature?

Taiwan Mobile's strongest distinguishing feature is its 99.17% 5G rural population coverage rate, which exceeds even its urban coverage metric of 97.20% and surpasses its original 85% deployment target. This rural-first coverage extends to offshore islands including Kinmen and Matsu, making Taiwan Mobile the preferred choice for subscribers in non-metropolitan regions of Taiwan. The OpenSignal June 2024 Taiwan report recognized this network reliability through the sole Consistent Quality award, with a score of 83.1%.

Conclusion

Taiwan Mobile delivers reliable nationwide 5G with exceptional rural and offshore coverage at 99.17%, making it the strongest choice for subscribers outside Taiwan's major metropolitan centers who prioritize consistent connectivity over peak download speeds.

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

Last Updated: April 10, 2026

Sources:

1. Ookla, Speedtest Connectivity Report Taiwan H2 2024, Published April 2025

2. OpenSignal, Taiwan Mobile Network Experience Report, June 2024

3. Taiwan Mobile Co., Ltd., ESG Network Quality Report, 2024

4. DataReportal, Digital 2025: Taiwan, GSMA Intelligence Data, March 2025

5. Nokia Newsroom, Nokia Signs 5G Deal Extension With Taiwan Mobile, November 2024

6. Taiwan News, Taiwan 5G Users Surpass 10 Million — NCC Data, January 2025

7. Market Report Analytics, Taiwan Telecom Market Strategic Analysis, January 2026

8. Fitch Ratings, Taiwan Mobile AA-(twn) Stable Outlook, November 2025

9. Taiwan Mobile Co., Ltd. Official Website — taiwanmobile.com

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