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So you’re off to explore the beautiful beaches, vibrant cities, and delicious food of Thailand! But before you land, there’s one essential to sort – staying connected. This guide will unveil the best mobile operators in Thailand for tourists, helping you choose the perfect SIM card or eSIM for your adventure.
We’ll break down the top contenders, AIS, dtac, and TRUE, highlighting their coverage, data options, and tourist-friendly packages. With this info in hand, you’ll be able to stay online, navigate with ease, and share your Thai journey with friends and family back home!
Table of Contents
I. Do I Need to Buy a SIM Card When Travelling in Thailand?
If you plan to use your mobile phone while traveling in Thailand, buying a SIM card is a good idea. Here are some reasons:
- Cost: Using your home country’s mobile network while traveling in Thailand can be expensive due to roaming charges. Buying a local SIM card can be more cost-effective, as local mobile plans are designed to be affordable for locals.
- Convenience: Having a local SIM card makes staying connected while traveling in Thailand easy. You can use the internet, call, and text without worrying about roaming charges or finding Wi-Fi.
- Local phone number: Buying a local SIM card will give you a local phone number, which can be useful for making local calls, contacting local businesses, or communicating with locals.
- Internet access: Having a local SIM card with a data plan will give you easy access to the internet, which can be useful for navigating, finding places to eat, or researching local attractions.
Read more: Guide on data roaming in Thailand for travellers
Notes:
- Several mobile network operators in Thailand, including AIS, dtac, and TRUE, offer prepaid SIM cards for tourists.
- These can be purchased at the airport, mobile network operator stores, or convenience stores.
- Before purchasing a SIM card, ensure your device is compatible with the network frequencies used in Thailand and that your device is unlocked for international use.
II. How Many Mobile Operators in Thailand?
There are currently 3 major mobile operators in Thailand: AIS, dtac, TRUE. These operators offer various mobile services, including voice calls, text messaging, data, and internet access.
Notes: dtac and True Corporation were merged and launched under the name True Corporation
Mobile operator market in Thailand is quite big (Update 2026):
- Total subscribers/connections in Thailand at the end of 2025 were ~96.6 million.
- The population was around ~71.6 million, giving a mobile penetration of ~135% to 139%.
- The market is now dominated by two massive entities following the landmark merger of True and dtac. AIS (Advanced Info Service) remains the market leader with approximately 47-48% market share, and True Corp (Merged True + dtac) holds a combined share of roughly 50-52% depending on the specific quarter
1. Main Mobile Operators in Thailand
The four key players in the Thai telecommunication market are:
1.1. AIS (Advanced Info Service)
AIS (Advanced Info Service) has successfully transitioned into a “Cognitive TechCo,” now serving 46.8 million mobile subscribers. While True Corp holds a slightly higher total connection share (~51%). A major highlight is the rapid adoption of 5G, with AIS boasting over 17.9 million 5G users- covering more than 95% of the population. Furthermore, following its acquisition of 3BB, AIS has surged to the #1 position in Fixed Broadband, commanding a 48% market share with 5.24 million households connected via its “FIBRE3” ecosystem (Update 2026).
Read more: AIS SIM cards for tourists
1.2. True Corporation (Merged True + dtac)
Following the completion of the landmark merger between TrueMove H and dtac in 2023, the combined entity, operating under the name True Corporation (TRUE), has solidified its position as Thailand’s leading mobile operator by total connection volume.
As of late 2025/early 2026, True Corporation holds approximately 51-52% of the total mobile market share. It maintains a slight lead over its primary competitor, AIS, in terms of total subscriber numbers, with roughly 46.9 million active mobile connections.
dtac is also known as one of the leading providers offering data packages for tourists. Check out Full guide for buying dtac SIM cards for tourists.
Read more: Truemove SIM card guides for tourists!
2. Top Mobile Virtual Network Operators (MVNO)
Besides the mobile operators, many MVNOs operate under the mobile network operators’ infrastructures. Some outstanding names can be listed below:
2.1.National Telecom (NT)
Here is some necessary information about National Telecom (NT) that you should know:
- Native name: บริษัท โทรคมนาคมแห่งชาติ จำกัด (มหาชน)
- Founded: 7 January 2021
- Type: Public State-owned
- Industry: Telecommunications
- Predecessor: CAT Telecom & TOT Public Company Limited
- Headquarters: Bangkok, Thailand
- Area served: Thailand
- Products: Mobile telephony, Wireless broadband services, International gateways, Satellite, Submarine cable networks
- Owner: Ministry of Digital Economy and Society
- Website: https://www.ntplc.co.th/
2.2. Feels Telecom Corporation Company Limited – Feels
Feels is a mobile virtual network operator (MVNO) based in Thailand that offers customers affordable and flexible mobile services. Established in 2020, Feels operates on the networks of one of Thailand’s leading mobile operators, allowing it to provide reliable coverage and high-quality services to its subscribers.
For tourists, Feels offers various valid plans (1-30 days), free GB and call minutes, and prices (29 baht – 499 baht). You can head to https://feels.co.th/packages to check out the plans.
2.3. Red One Network – Red One
Red One, a Mobile Virtual Network Operator (MVNO) in Thailand, offers mobile services through the TOT 3G and 4G networks. The company was launched in 2019 and is owned by Samart Group, a well-known telecommunications company in Thailand.
RedOne offers many data packages for various types of users. You can refer to the packages below:
| Package | Internet Data | Free Call Minutes | Service Fee |
| Amazing Package 199 | 6 GB | 200 | 199 baht |
| Amazing Package 299 | 12 GB | 200 | 299 baht |
| Amazing Package 399 | 24 GB | 200 | 399 baht |
| Amazing Package 499 | Unlimited | 300 | 499 baht |
| Amazing Package 699 | Unlimited | Unlimited | 699 baht |
2.4. The Whitespace Company Ltd – Penguin SIM
Penguin SIM is a Thailand mobile virtual network operator (MVNO). The company offers prepaid SIM card services for both voice and data to customers in Thailand, focusing on providing affordable and convenient options.
2.5. Loxley Public Company Limited – I-KOOL 3G
Loxley Public Company Limited is a leading conglomerate in Thailand that operates in various industries, including telecommunications. I-KOOL 3G aims to provide customers with high-quality and affordable mobile services.
Tips:
Each of these operators offers unique advantages and disadvantages, and it is important to carefully evaluate their services and coverage areas before deciding which one to use.
III. How to Choose the Best Mobile Operators in Thailand?
When evaluating the best mobile operator in Thailand, there are several key criteria to consider, including:
- Network coverage and quality: One of the most important factors to consider when choosing a mobile operator is the quality and coverage of its network. The best mobile operator should have strong coverage in areas where you need it most, including urban and rural areas.
- Speed and reliability of the internet: In today’s digital world, fast and reliable internet access is crucial. The best mobile operator should provide fast and reliable internet services with minimal downtime or disruptions.
- Cost of services and plans: Mobile services and plans are another important factor when choosing a mobile operator. The best operator should provide affordable and transparent pricing, with various plans to suit different needs and budgets.
- Customer service and support: Good customer service and support are essential when choosing a mobile operator. The best operator should provide responsive and knowledgeable online and offline support.
- Availability of latest devices and plans: The best mobile operator should offer the latest devices and plans, including smartphones, tablets, and data plans, to stay ahead of the competition.
By evaluating these criteria, you can determine which mobile operator best fits your needs and requirements, whether you are a resident or a visitor to Thailand.
IV. Best Mobile Operators in Thailand Offer SIM Card and eSIM for Tourists
Below is the list of Thailand’s top best mobile operators that you can refer to when traveling to Thailand.
1. AIS
AIS (Advanced Info Service Public Company Limited) is Thailand’s leading telecommunications network operator.
The company’s strong customer base in Thailand is known for its high-quality network coverage and customer service.
1.1. AIS network coverage and quality
AIS has close to perfect coverage throughout Thailand. AIS operates 3G, and 4G networks nationwide, providing voice and data services to its customers. AIS’s network coverage is extensive, covering both urban and rural areas of Thailand, and its 4G network provides fast and reliable internet services to its customers.
Here is the AIS network coverage in Thailand:
1.2. Cost of AIS SIM card and eSIM for tourists
An AIS SIM card costs between 50 THB and 1490 THB from resellers such as grocery stores, petrol stations, and convenience stores. The majority of them come with introductory benefits or plans.
Additionally, AIS SIM cards are available at several airports, including Chiang Mai International Airport and Bangkok Suvarnabhumi Airport (BKK) (CNX).
The AIS Thailand Tourist SIM card is also available to tourists and short-term visitors. The four AIS Thailand Tourist SIM cards listed below are readily available:
| Price | Credit | Data | Social Data 1 | On-Net Minutes | Validity |
| 49 THB | 15 THB | N/A | Unlimited | Unlimited | 8 days |
| 299 THB | 15 THB | 15 GB | Unlimited | Unlimited | 8 days |
| 599 THB | 15 THB | 30 GB | Unlimited | Unlimited | 15 days |
| 1250 THB | 15 THB | 300 GB | Unlimited | Unlimited | 30 days |
Anyway, you have more convenient alternatives if your device supports Thailand eSIM::
| Price | Data | Validity |
| 299 THB | 15 GB (3G & 4G/LTE) | 8 days |
| 550 THB | 35 GB (3G, 4G/LTE & 5G NR) | 15 days |
| 599 THB | 30 GB (3G & 4G/LTE) | 15 days |
| 850 THB | 50 GB (3G, 4G/LTE & 5G NR) | 30 days |
| 1250 THB | 300 GB (3G & 4G/LTE) | 30 days |
| 1650 THB | Unlimited (3G, 4G/LTE & 5G NR) | 30 days |
AIS eSIMs are also provided by many Thailand eSIM providers like Gigago, thailandesim.com,… They can offer more options on data volume and validity.
Check out some Thailand AIS eSIM:
2. DTAC (Total Access Communication)
DTAC (Total Access Communication) is one of the major mobile network operators in Thailand, providing its customers network services.
2.1. DTAC network coverage and quality
DTAC’s network coverage is extensive, covering most of Thailand’s urban and rural areas. The company has invested heavily in its network infrastructure to provide its customers with high-speed and reliable network services.
Below is Dtac Thailand’s coverage map produced by Speedtest:
2.2. Cost of DTAC SIM card and eSIM for tourists
In addition to its mobile network services, DTAC offers a range of mobile plans and services for tourists, including voice, SMS, and data packages, as well as value-added services such as music and video streaming.
Between 29 THB and 2999 THB, you may get a Dtac Thailand SIM card from resellers, including grocery shops, petrol stations, and convenience stores. The majority of them come with introductory benefits or plans.
Dtac SIM cards are available at several airports, including Chiang Mai International Airport and Bangkok Suvarnabhumi Airport (BKK) (CNX).
Read more: Buying Thailand SIM cards at the airport
The four Dtac Happy Tourist SIM cards listed below are available:
| Price | Credit | Data | Social Data 1 | On-Net Minutes | Validity |
| 49 THB | 15 THB | N/A | Unlimited | Unlimited | 1 day |
| 149 THB | 15 THB | 5 GB | Unlimited | Unlimited | 4 days |
| 299 THB | 15 THB | 15 GB | Unlimited | Unlimited | 8 days |
| 599 THB | 15 THB | 30 GB | Unlimited | Unlimited | 15 days |
The price of a Dtac eSIM is equivalent to that of a regular SIM card. Thai mobile service providers require your identification (passport) and biometrics for eSIMs and traditional SIM cards (fingerprints and a facial scan, which frequently apply to foreigners).
Thus if you want an eSIM without having your personal information gathered, Thailand (Dtac) eSIMs from ThailandeSIM are a suitable choice.
3. TrueMove H
TrueMove H is a subsidiary of True Corporation, a large telecommunications conglomerate in Thailand that also operates a fixed-line telephone and broadband network and other digital services.
3.1. TrueMove H network coverage and quality
TrueMove H is known for providing high-speed and reliable mobile internet services, particularly through its 4G LTE-Advanced network.
3.2. Cost of services and plans
TrueMove H has several different mobile plans and packages that cater to different types of customers, ranging from prepaid plans to postpaid plans with unlimited data and international roaming options.
In TrueMove H outlets and via resellers, such as grocery stores, petrol stations, and convenience stores, you may purchase a TrueMove H SIM card for between 45 THB and 1499 THB, the majority of them with beginning bonuses or plans.
Moreover, TrueMove H SIM cards are available at several airports, including Chiang Mai International Airport and Bangkok Suvarnabhumi Airport (BKK) (CNX).
The following TrueMove H Thailand Tourist (Infinite) SIM cards are available:
| Price | Data | Social Data 1 | Local Minutes | International Call Credit | Validity |
| 49 THB | N/A | Unlimited | N/A | 15 THB | 1 day |
| 299 THB | 15 GB | Unlimited 3 | Unlimited 2 | 100 THB | 16 days |
| 399 THB | Unlimited | Unlimited | Unlimited | 100 THB | 8 days |
| 599 THB | Unlimited | Unlimited 3 | Unlimited 4 | N/A | 30 days |
| 699 THB | Unlimited | Unlimited | Unlimited | 100 THB | 15 days |
| 999 THB | Unlimited | Unlimited | Unlimited | 100 THB | 30 days |
A TrueMove H eSIM may be purchased for the same cost as a standard SIM card.
With eSIMs and physical SIM cards, Thai mobile providers demand your identification (passport) and biometrics (fingerprints and a facial scan, which frequently apply to foreigners).
Hence, if you want an eSIM without having your personal information collected, choose an eSIM plan.
V. Thailand Mobile Network Operators Comparisons
According to the latest 90-day monitoring period by Opensignal, AIS has solidified its position as the premium performance leader, while DTAC and TrueMove H show shared strengths in availability and speed.
1. AIS: The Consistency & Coverage Leader
AIS dominates the “Consistency” and “Coverage” categories, winning several key awards:
- Winner in Games & Voice App Experience: The best choice for real-time interactive applications.
- Winner in Upload Speed: Continues to lead in data transmission performance.
- Winner in Coverage & Consistent Quality: AIS remains the most reliable network for maintaining a steady connection across the country.
2. DTAC: The Media Specialist
Despite being part of the True Corp merger, the DTAC network brand still excels in specific experiential metrics:
- Sole Winner in Video Experience: Provides the best quality for streaming movies and clips.
- Sole Winner in Reliability Experience: Rated as the most dependable network for overall service stability.
- Joint Winner: Shares the crown for Download Speed and Availability.
3. TrueMove H: The Accessibility Specialist
TrueMove H’s strengths now lie primarily in accessibility and raw throughput:
- Joint Winner in Download Speed Experience: Now matches its competitors for top-tier download throughput.
- Joint Winner in Availability: Ensures users can find a signal as easily as with its competitors.
| Category | Winner(s) |
| Video Experience | DTAC |
| Games & Voice Apps | AIS |
| Download Speed | DTAC & TrueMove H (Joint) |
| Upload Speed | AIS |
| Coverage Experience | AIS |
| Availability | DTAC & TrueMove H (Joint) |
| Consistent Quality | AIS |
| Reliability Experience | DTAC |
Tips:
- For Gamers & Professionals: Choose AIS for the best voice app experience, highest upload speeds, and the most consistent quality.
- For Content Consumers: Choose DTAC if your priority is high-quality video streaming and the most reliable overall connection.
- For General Browsing: Both TrueMove H and DTAC are excellent choices for download speeds and broad availability.
VI. Where to Buy SIM Cards from Thailand Mobile Operators?
A Thailand SIM card is available via AIS, TrueMove H, and Dtac retailers. SIM cards are also sold by resellers, including post offices, newsstands, and grocery shops. Also, they are offered for sale in several airports, such as Hat Yai International Airport, Bangkok Suvarnabhumi Airport, and Don Mueang International Airport (DMK) (HDY).
You can buy a Thai SIM card in the following airports:
- Bangkok – Suvarnabhumi Airport (BKK)
- Chiang Mai – Chiang Mai International Airport (CNX)
- Chiang Rai – Chiang Rai International Airport (CEI)
- Don Mueang – Don Mueang International Airport (DMK)
- Hat Yai – Hat Yai International Airport (HDY)
- Krabi – Krabi International Airport (KBV)
- Phuket – Phuket International Airport (HKT)
- Samui – Samui Airport (USM)
- U-Tapao – U-Tapao–Rayong–Pattaya International Airport (UTP)
VII. Does Thailand Mobile Operators Offer eSIM?
Yes. Thailand mobile operators also have eSIM options for tourists. If you’re planning to travel to Thailand and want to use an eSIM, you have a few options:
- Buy an eSIM online before you travel: Various online services offer eSIMs for use in Thailand. One such service is Thailand eSIM, which offers eSIMs for Thailand and many other countries.
- Buy an eSIM at the airport: Some airports in Thailand, including Suvarnabhumi Airport in Bangkok, offer eSIMs for purchase upon arrival. However, this option may be more expensive than buying an eSIM online.
Buy Thailand eSIM online without a passport!
Before purchasing an eSIM or physical SIM card, ensure that your device is compatible with the network frequencies used in Thailand and that your device is unlocked for international use. Additionally, be aware of any roaming charges that may apply if you use your home country’s mobile network while in Thailand.
For eSIM, you need to check the device compatibility before purchasing a plan. Check out Thailand eSIM compatible device list!
VIII. FAQs about Thailand Mobile Operators
Here are some frequently asked questions about mobile operators in Thailand that travelers may consider:
How many mobile operators in Thailand?
There are currently 3 major mobile operators in Thailand: AIS, DTAC, TrueMove. After the merge between dtac and Truemove H, the market share in Thailand almost includes AIS and TRUE.
Is it cheaper to use eSIM in Thailand compared to a physical SIM card?
It depends on the plan and carrier you choose. Some eSIM plans may offer cheaper rates than traditional SIM cards, but it’s best to compare the options available to determine which is the best for your needs.
Which mobile operator is the best option for tourists?
It’s based on the traverlers’ demands. If you need good internet speed, you might choose TrueMove H, while if you value wide coverage and good voice quality, you might choose AIS or Dtac.