Best Mobile Operators in Thailand

The telecommunication industry in Thailand has grown tremendously over the years, with several key players offering mobile services to the general public. Choosing the best mobile operator that meets your needs and requirements can be challenging, with many available options. Some outstanding names among Thai mobile operators:

AIS – Advanced Info Service

DTAC – Total Access Communication Public Company Limited

Truemove H

In this article, we will delve into the key players in the Thai telecommunication market and evaluate them based on important criteria such as network coverage and quality, speed and reliability of the internet, cost of services and plans, customer service and support, and availability of latest devices and plans. Whether you are a resident or a visitor to Thailand, we aim to provide you with the information to decide on the best mobile operator.

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.

II. How Many Mobile Operators in Thailand?

There are currently four major mobile operators in Thailand: AIS, DTAC, TrueMove, and TOT. These operators offer various mobile services, including voice calls, text messaging, data, and internet access.

Each of these operators has its own unique strengths and weaknesses, and it is up to the individual to determine which one best meets their needs based on factors such as network coverage, cost, and customer service.

1. Main Mobile Operators in Thailand

The four key players in the Thai telecommunication market are:

1.1. AIS (Advanced Info Service)

AIS is the largest mobile operator in Thailand, with over 40 million subscribers. It offers various services, including 2G, 3G, and 4G networks and mobile internet and data services. In 2021, with a market share of around 40%, AIS will be the largest mobile operator in Thailand, with over 40 million subscribers.

1.2. DTAC (Total Access Communication)

DTAC is Thailand’s second-largest mobile operator, with a market share of around 33% and over 33 million subscribers (2021). It provides voice and data services, as well as international roaming services. 

1.3. TrueMove 

TrueMove is Thailand’s third-largest mobile operator, with over 20 million subscribers. TrueMove has a market share of around 20%. It provides various mobile services, including 2G, 3G, and 4G networks, internet services, and international roaming.

1.4. TOT (Telephone Organization of Thailand)

TOT is a state-owned telecommunication company that provides mobile services to consumers and businesses. TOT has a much smaller market share than the other operators but still serves a significant portion of the Thai telecommunication market with a several million-muser base.

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)

National Telecom (NT) is a Thailand-based mobile virtual network operator (MVNO). As an MVNO, NT does not own its physical infrastructure or spectrum. Instead, it leases network capacity from other telecom operators in Thailand, such as AIS, TrueMove H, and Dtac to provide mobile services to its customers.

NT primarily provides prepaid SIM cards, mobile data plans, and international calling services to Thailand’s domestic and international customers. The company offers a range of mobile plans at competitive prices, targeting budget-conscious consumers and foreign travelers looking for affordable mobile services in Thailand.

Overall, NT has established itself as a reliable and affordable mobile service provider in Thailand, leveraging the network infrastructure of its partner operators to deliver quality services to its customers.

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. 

With a strong focus on customer satisfaction, Feels aims to provide a hassle-free and user-friendly experience to its customers, making it easy for them to manage their mobile services and stay connected with their loved ones. 

Feels offers a range of mobile plans tailored to different needs and budgets, including voice, data, and messaging services and value-added services such as international roaming, mobile banking, and more. Whether you are a heavy data user, a frequent traveler, or simply looking for an affordable mobile plan, Feels has covered you.

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.

Red One provides affordable mobile services to customers in Thailand, including prepaid SIM cards, postpaid plans, and data packages. They offer a range of mobile plans with varying amounts of data, voice, and text, catering to different customer needs. The company also offers international calling services and roaming packages for travelers.

Red One’s mission is to provide high-quality and affordable mobile services to customers in Thailand. They aim to achieve this by leveraging the latest technology and innovation in the telecommunications industry. They also prioritize customer satisfaction by offering 24/7 customer service and support through their website and mobile app.

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.

One of the unique features of Penguin SIM is its commitment to eco-friendliness. The company offers SIM cards made from recycled materials and donates some of its profits to environmental organizations. Additionally, Penguin SIM allows customers to manage their accounts online, reducing the need for paper statements and bills.

Penguin SIM also offers a variety of plans and packages to suit different customer needs, including both short-term and long-term options. Customers can purchase SIM cards and top-up credit online or at various retail locations throughout Thailand.

Overall, Penguin SIM aims to provide reliable, affordable, and environmentally conscious mobile services to customers in Thailand.

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. Loxley launched the I-KOOL 3G mobile virtual network operator (MVNO) service in 2011, offering voice and data services to customers in Thailand.

I-KOOL 3G aims to provide customers with high-quality and affordable mobile services. The company offers various plans and packages, including prepaid and postpaid options and data-only plans for tablets and other devices.

Overall, I-KOOL 3G aims to provide reliable, affordable, and innovative mobile services to Thailand’s customers while offering value-added features and benefits.

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. Top Best Mobile Operators in Thailand

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. Established in 1991, AIS is one of Thailand’s largest mobile network operators, providing its customers with a wide range of communication services, including voice and data services, mobile broadband, and other value-added services. 

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 2G, 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. 

The company’s network is also equipped with cutting-edge technology, such as LTE-Advanced, which enhances network performance and provides faster data speeds.

Here is the AIS network coverage in Thailand:

1.2. AIS internet and frequencies

AIS uses the following frequencies:

• 2G: 900 MHz
• 3G: 850 MHz, 900 MHz & 2100 MHz
• 4G/LTE: 700 MHz (Band 28), 900 MHz (Band 8), 1800 MHz (Band 3), 2100 MHz (Band 1), 2500 MHz (Band 41) & 2600 MHz (Band 38)
• 5G NR: 700 MHz (n28), 900 MHz (n8), 1800 MHz (n3), 2100 MHz (n1), 2500 MHz (n41) & 26 GHz (n258)
• VoLTE: Yes (+VoNR – Voice over 5G NR)
• VoWiFi: Yes

1.3. Cost of AIS services 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 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

2. DTAC (Total Access Communication) 

DTAC (Total Access Communication) is one of the major mobile network operators in Thailand, providing its customers 2G, 3G, and 4G 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. DTAC also offers a 4G LTE-Advanced network, which enhances network performance and provides faster data speeds than traditional 4G networks.

Below is Dtac Thailand’s coverage map produced by Speedtest:

2.2. DTAC internet and frequencies

Dtac uses the following frequencies:

• 2G: 1800 MHz
• 3G: 850 MHz, 900 MHz & 2100 MHz
• 4G/LTE: 700 MHz (Band 28), 1800 MHz (Band 3), 2100 MHz (Band 1) & 2300 MHz (Band 40)
• 5G NR: 700 MHz (n28), 850 MHz (n5), 900 MHz (n8), 1800 MHz (n3), 2100 MHz (n1), 2300 MHz (n40) & 26 GHz (n258)
• VoLTE: Yes
• VoWiFi: Yes

2.3. Cost of DTAC services for tourists

In addition to its mobile network services, DTAC offers a range of mobile plans and services, including voice, SMS, and data packages, as well as value-added services such as music and video streaming. The company also has a strong online presence, with a user-friendly website and mobile app, which allow customers to manage their accounts, pay bills, and access other services online.

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).

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. TrueMove H internet and frequencies

TrueMove H uses the following frequencies:

• 2G: 900 MHz
• 3G: 850 MHz & 2100 MHz
• 4G/LTE: 900 MHz (Band 8), 1800 MHz (Band 3), 2100 MHz (Band 1) & 2500 MHz (Band 41)
• 5G NR: 700 MHz (n28), 850 MHz (n5), 900 MHz (n8), 1800 MHz (n3), 2100 MHz (n1), 2500 MHz (n41) & 26 GHz (n258)
• VoLTE: Yes
• VoWiFi: Yes

3.3. 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 Thailand (Dtac) eSIMs.

4. 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/

5. Feels

Here is some information that you should know about Feels Telecom.

5.1. Feels Network Coverage and Frequencies

Feel Telecom Corporation Co., Ltd. is an MVNO (Mobile Virtual Network Operator) mobile phone service user on a wide network with more than 75,000 antennas covering the country of the MNO (Mobile Network Operator) service provider.

• Feels provides 3G services on LTE-FDD 2100MHz frequencies and 4G services on LTE-TDD 2300MHz frequencies to support the needs of service users across the country.
• Feels provides 4G services on the 2300MHz frequency with 4G LTE-TDD technology on a bandwidth as wide as 60 MHz (2310 – 2370 MHz).

5.2. Feels Services

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. 

Besides, Feels offers custom packages based on the demand of the users. You can go to the Feels website to customize your own data package. After customization, the price will be shown for purchase.  

6. Red One

RedOne is one of the outstanding names of MVNO in Thailand. 

6.1. About Red One

Red One Network is a leading telecommunication company from Malaysia. It was established in 2012 and is known as a low-cost mobile network operator under the Red One brand, which has been well-received by users in Malaysia and Singapore. Guaranteed by several users of over 2 million numbers and many awards for the best mobile network in ASEAN

And with the vision of being the first mobile network MVNO system covering ASEAN, Red One is now ready to provide service to Thai users. With a mobile phone package at a comfortable price #easy to understand, with the National Telecommunication Public Company Limited as an ally in taking care of a strong signal network covering the country.

6.2. Red One Service

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

7. Penguin SIM

Service from Penguin… You can choose to use:

Turns off-on internet:

• Dial *500# turn off the net
• Dial *501# open the net

Check balance and remaining usage period: Dial *502#. Then wait for an SMS informing the balance and usage period.

Check the balance of additional promotions: Dial *502*1# and wait for the SMS

Check current promotions: Dial *503# and wait for the SMS

Check your number: Dial *504# and wait for an SMS informing your number

International calling service: Penguin provides international long-distance calls. with clear quality signal

• Call: Press 009 country code, city code, phone number.
• SMS: Press + country code, city code, phone number > send message.

Check out long-distance call charges international: https://www.penguinsim.com/service

V. Thailand Mobile Network Operators Comparisons 

According to the most current review by independent mobile analytics company Opensignal, Thailand has the best mobile network in terms of data speeds and performance.

According to Opensignal, the mobile network performance for Thailand’s three national carriers – AIS, DTAC, and TrueMove H – was monitored for 90 days, beginning on July 1 and ending on September 28, 2021. This business focuses in determining mobile data speeds around the world. Look at the cited outcomes below:

Besides the statistics, you can refer to some subjective criteria below to choose the mobile network operator for your trip. Here’s a comparison of AIS, DTAC, and TrueMove H based on some specific criteria:

• Network coverage: AIS has the widest coverage in Thailand, followed by DTAC and TrueMove H.
• Internet speed: TrueMove H is known for having good 4G and 5G coverage, and their internet speed is generally faster than AIS and DTAC.
• Voice quality: AIS has the best voice quality among the three mobile network operators.
• Price: The prices of mobile plans vary depending on the data and voice allowances, but in general, TrueMove H offers more affordable plans than AIS and DTAC.
• Customer service: DTAC is known for having good customer service, with a customer service hotline that is available 24/7 and staff who speak English.
• International roaming: All three mobile network operators offer international roaming options, but AIS is known for having the most comprehensive international roaming packages.

VI. Where to Buy SIM Cards in Thailand?

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)

The following are the prices for Thai SIM cards:

• AIS Thailand: between 50 THB & 1490 THB (20+ options)
• TrueMove H: between 49 THB & 1499 THB (10+ options)
• Dtac Thailand: between 25 THB to 1500 THB (15+ options)

The following Thai mobile service providers also provide SIM cards for travelers:

• AIS Thailand: 49 THB, 299 THB, 550 THB (eSIM only), 599 THB, 850 THB (eSIM only), 1250 THB & 1650 THB (eSIM only)
• TrueMove H: 49 THB, 299 THB, 399 THB, 599 THB, 699 THB & 999 THB
• Dtac Thailand: 49 THB, 149 THB, 299 THB & 599 THB

VII. Where to Get eSIM for Thailand Travel

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 a physical SIM card in Thailand: If you prefer not to use an eSIM, you can also buy one in Thailand. Several mobile network operators in Thailand, including AIS, DTAC, and TrueMove H, offer prepaid SIM cards for tourists. These can be purchased at the airport, mobile network operator stores, or convenience stores.

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.

VIII. FAQs about Thailand Mobile Operators

Here are some frequently asked questions about mobile operators in Thailand that travelers may consider: