National Anthem

Royal Anthem

Basics[edit | edit source]

Availability[edit | edit source]

Three main mobile operators of Thailand ("big three") - AIS, DTAC and True Move. There is a number of smaller providers or MVNOs that lease government bandwidth mostly on the CAT network (such as LINE, Penguin or My).

Purchase of a new SIM card is easy, and can be done at operators' shops in major malls or at the airports or at any 7-Eleven, Family Mart and many mini markets. Thailand has a strictly enforced mandatory SIM card registration and now you need to provide your ID or passport at the point of purchase (see below).

Generally you have the choice between two options:

  • buying your tourist SIM at an airport store or flagship store of the operator in a shopping mall
  • buying your local SIM in a mini market like Family Mart, 7-Eleven and others

Arriving at BKK (Suvarnabhumi) airport in Bangkok the 3 major players have their flagship stores in the big arrivals hall just past the customs check almost side by side. There you can compare prices and promotions. At DMK (Don Mueang) Bangkok's budget airport you can now find the stores of the three major providers located next to each other facing exit gate 6. At Phuket's internatl. terminal and Chiang Mai's airports you find stalls of the providers too. Alternatively, you can go to a flagship store of the provider found in major shopping malls. There are several 3rd party phone shops even at BKK airport near the train entry point at the lower level if you are arriving late at night these are the only stores open and selling local SIMs. Elsewhere in town most mini stores like 7-Eleven and Family Mart will sell you local SIM cards.

Tourist and local SIM cards[edit | edit source]

Some users argue that local SIM cards bought in a mini store are cheaper. That's right, but tourist plans sold only in branded operator stores at the airport or in malls have other advantages. If you want to call IDD, they give you the lowest rates (ask for the prefix). In these stores you will get English-speaking service and they will install the SIM in your device with all the configurations. You clearly understand your plan and the included services print out in English. They are not a rip-off like in some other SE Asian countries and a valid option for not so experienced users.

On the other hand local SIM cards are somewhat cheaper for data (about 10-20%). You will need to know what plan you want and which strings are attached. The cheapest plans are severely throttled in max. speed, some as low as 384 kbps. Don't expect anybody to speak English or be able to give you any information about the plans which are on display only in Thai in the local stores. There is nobody to give you any assistance about options and problems. But they can be a very good value for the regular visitor to the country.

In the list below we show some of the local prices as an indicative because there are many more options and promotions around. These plans are separate from the Tourist and Roaming SIM cards that you need to buy in a branded store and both lines can't be mixed.

Concerns for all providers[edit | edit source]

The big three operators have SIM cards for all sizes - normal, micro and nano SIMs. All major operators allow tethering and they treat all data going through their network equally. If you are using an iPhone, you may need to perform a network reset or a carrier update for the mobile tethering option to appear. Tethering provides, most of the time, excellent quality It's sufficient for VoiP and supports PPTP/SSL/IPsec VPNs. If you work remote and are a heavy user, you will have a trouble free experience.

For voice calling overseas heavily reduced rates even below VoIP providers are offered by the three major operators using special IDD prefix codes on Tourist Plans only. Let them give you the cheapest option for your destination which has to be dialed before the country code (see below).

Topping up[edit | edit source]

Adding credit or airtime is quite easy as long as you stay in Thailand. Loading airtime gives you ability to make calls or subscribe to data packages and also extends the lifetime of the SIM card. A few physical places where you can top-up are 7-Eleven, Family Mart, BigC, Tesco, phone kiosks and the outlets of the operators. Note that 7-Eleven can only sell top ups for cash and not for AIS.

Adding credit online is also possible and there are some options:  

  • For no fee, DTAC allows top-ups on its mobile app with certain foreign Visa or MasterCard credit or debit cards as long as you are accessing it from a Thai IP address (which is also possible outside Thailand, for example, by roaming with your DTAC SIM or a VPN). If DTAC does not "like" your issuer or you are not accessing the site from a Thai IP, you will get a generic "error" telling you to check your card details again. This has so far only been tested to be successful with overseas cards issued by banks that are also present in Thailand, like Citibank, and the TransferWise card.  
  • accepts Alipay, Cryptocurrency international and local Visa and MasterCard with a fee, and PromptPay without.  
  • If you have Bitcoin you can top-up at or  
  • If you use Webmoney you can do it through Most of these options add face value surcharges, and conversion fees may be added in the process. They remain mostly limited to the 3 major providers.  
  • For developers, there is also a API service.  

There are a lot more resellers found on the internet, all using the same API and provider. If one of them does not work with your number and payment option, trying another one will most likely give you the same error.

Expiration policy[edit | edit source]

You have to top-up a Thai SIM card every 45 days or pay more to add validity in order to keep it alive as well as make at least one call or outgoing SMS activity every 6 months. Many Thai SIM cards expire in 45 days after the last top-up, unless you are able to add extra validity. The bare minimum to maintain validity is 10 THB every month. DTAC's policy is that every top-up extends SIM validity by 30 days, so multiple small top-ups will keep your SIM active for longer than one large top-up (example: 5 x 20 THB top-up extends your SIM validity by 150 days compared to a single 100 THB top-up). Additionally, True and DTAC allow you to extend validity for a price, check this site on how to extend.

Network compatibility[edit | edit source]

Before you purchase any SIM card, make sure that the network you are choosing is compatible with your devices (see below). The big three providers have different networks operating on more than one set of frequencies that are combined through domestic roaming. So you should better enable roaming on your device, even for domestic use. Most old networks mainly on 2G are about to decommissioned soon. These frequencies are used for 3G, 4G/LTE and since 2020 5G NR:

  • AIS has 3G/DC-HSPA on 900 and 2100 MHz (and roaming on TOT 2100 MHz) and started in 2016 with 4G/LTE Advanced called "4.5G" on 1800 and 2100 MHz (bands 1 and 3). 5G started on 2600 MHz (n41).
  • dtac has the largest 3G spectrum: 3G/DC-HSPA on 850 and 2100 MHz and 4G/LTE on 1800 and 2100 MHz (bands 1 and 3)
  • TrueMove H has 3G/DC-HSPA on 850 and 2100 MHz 3G/DC-HSPA and the largest 4G/LTE spectrum on 850, 900, 1800 and 2100 MHz (bands 1, 3, 5 and 8). 5G started on 2600 MHz (n41).
  • CAT: is on 3G/HSPA only on 850 MHz (with national 4G roaming for its My brand on True's 4G/LTE network on 1800 and 2100 MHz).
  • TOT: is on 3G/HSPA on 2100 MHz in Bangkok only (nationwide through 3G roaming on AIS) and plans 4G/LTE on 1800 MHz 4G/LTE (B1) and 2300 MHz TDD-LTE (B40).

Note that all old 2G/GSM networks are about to be shut down within the next years as the providers need more spectrum for LTE. AIS has sealed a roaming agreement with dtac for 2G on their 1800 MHz band, which dtac is going to use until 2018. True has leased back bandwidth from CAT on 1800 MHz for 2G until the end of 2016 while TOT has never had any 2G. So be prepared that 2G is coming to an end soon in Thailand and better bring a 3G or 4G/LTE device even for voice calls.

Coverage, speed and 5G[edit | edit source]

The leading trio is very much on par. 4G/LTE availability is generally high at about 90-95% of the population on all three major networks. According to Open Signal in 2020 AIS had the best 4G coverage at 95%, while dtac had the best download speeds at an average 10 Mbps. Sometimes there is congestion in city areas. 5G started on AIS and True in 2020 on 2600 MHz (n41), while dtac is planning to deploy 5G on the 700 MHz band.

IDD Calling Prefixes[edit | edit source]

Thailand is one of the few countries where some international calls are charged lower than domestic or even VoIP calls. For this you have to use certain IDD prefixes. So the correct order to dial abroad is:

<IDD prefix> <country code> <area code> <local number>

The prefixes differ between operators and are added at the end of each section. The major providers give out special discounted prefixes on which major landlines in Europe, America, Asia and Australia can be called for as low as 1 THB per min. On all operators you can use CAT's prefix 009 (price list) or TOT's 008.

New biometric registration (effective 2017)[edit | edit source]

Under the law all SIM cards have to be registered from 2015. You will need to show an ID at the point of purchase. This is now enforced in all providers stores and outlets very strictly and from the end of 2017 a new biometric system is introduced. You will now additionally have your face scanned or fingerprints taken.

The new system is mandatory from 2017 to the registration of both new prepaid and postpaid SIM cards, but not to existing SIM card holders. It's to be used across Thailand in all 55,000 customer service shops and outlets. Operators can choose to use either the face or fingerprint recognition verification system.

The number of new SIM cards sold by all three major mobile phone operators that are ordered to introduce this new biometric registration system is around 4.2 million units monthly. Under the previous method, the registration locations copied only the ID cards of the SIM card buyer together with a barcode of the purchased SIM card.

Under this new method, new SIM card subscribers will have to insert their ID cards into the fingerprint reader or the face recognition card reader at the registration locations. The card readers are connected to the mobile phones or PC of the registration locations. In the case of the face recognition system, the locations will take the SIM card users’ face with the mobile phones embedded with an NBTC registration application. Then the app will see, if the captured face matches with the face stored in the ID card database. Foreigners buying SIM cards in Thailand will have their faces scanned and matched against their passport photographs.

In 2018 new restrictions on the number of SIM cards have been implemented. Users can from now on only buy up to 5 SIM cards from one mobile provider, which then must be registered via the country’s biometric verification system (a face recognition or a fingerprint verification).

WiFi[edit | edit source]

Thailand has a very strong network of public WiFi hotspots all over the country. Some of them e.g. in airports are free and publicly available. Others in hotels and restaurants are for customers only. There are many hotspots of AIS, True and dtac throughout the country. If you purchase a SIM, also check for the accompanying WiFi plan. In general monthly plans over 500 THB per month will include free WiFi package. WiFi plans can be purchased separately as well, and paid from your phone balance. While True has the largest WiFi presence, AIS has the largest roll out of the latest 802.11n WiFi points, and generally has better speeds and reliability.

Some prices below are without taxes. Expect to add 7% tax for the final price.

AIS (1-2-Call, you! Mobile)[edit | edit source]


AIS has the largest 2G/3G network with a 50% customer share. It's part of the SingTel Corp. that also owns e.g. Optus in Australia and SingTel in Singapore.

Surprisingly, AIS was the last major provider to start 4G/LTE in 2016 on the 1800 and 2100 MHz band (B3, B1), partly marketed as "4.5G" or LTE Advanced. It now covers 80% of the population in 2017: 3G/4G coverage map and is competitive to True and dtac. 5G has started on 2600 MHz (n41). AIS' prepaid brand is often dubbed 1-2-Call.

Availability[edit | edit source]

You can get their SIM cards online (only for old 3G SIMs) to be sent to a Thai address and at airports, major shopping malls, telecom stands, in AIS and Telewiz branded stores (shop locator in Thai with map). Change language of their messages to English by pressing *700# <call> and choose option 5.  

Top-up, balance check and validity[edit | edit source]

Top-ups can be done in many ways, but ATMs and internet banking require Thai bank accounts. So topping up by an electronic top-up or cash card is recommended. They are sold at some convenience stores such as Family Mart, Tesco/Lotus, Big C or online. 7/11 stores do not sell AIS top-ups anymore, but usually you can find a stand alone vending machine which will allow you to use cash to top up. A small fee will be deducted.  

Every AIS store has a "payment kiosk" that is an automated top-up machine as well. These green/white machines are also found at malls and MRT/BTS stations, and are the fastest option to Top-up. There is no markup, 500 THB in gives you 500 THB credit.  

Top-ups can also be made by credit card on the AIS service page in increments of 50 THB. International credit cards are a mixed bag, most of them do not work.  

Top-ups up to THB 150 are valid for 30 days and of more than THB 150 are valid for 60 days. In case there is no usage or no recharge for 90 days, with no remaining validity, the number will be automatically terminated. 

To maximize validity extension, top up in small increments e.g. For THB 500 credit, top up THB 100 5 times and the validity will be extended 5 times instead of once with a single THB 500 top-up. 

To top-up by code, type *120*<16 digit voucher PIN>#. To check account balance and validity, type *121#. Check data balances by *121*3#.  

1-2-Call[edit | edit source]

1-2-Call SIM cards are their regular prepaid voice and data cards. All new SIM cards include 4G/LTE are sold for around THB 50 with a THB 15 call credit and some bonuses. They offer a huge array of SIM cards:

  • The One SIM: This SIM was introduced in 2018 as often a specific SIM can't be found. When you top-up at least THB 150 you get 1 GB 3G/4G data and 1 GB 4G-only data for 7 days, 3 GB WiFi and 1 GB for social apps for 30 days as a bonus.
  • Super Social: This SIM is geared to social media. For a top-up of at least THB 150 you get unlimited use of Facebook, Facebook Messenger, Line, Twitter, WhatsApp, Viber, WeChat, BeeTalk at 1 Mbps for 30 days, 1 GB 3G/4G data and 1 GB 4G-only data for 7 days and 3 GB WiFi for 30 days as bonus.
  • Net SIM: This is their best SIM for data-use. It's sold for THB 88. After activation you get unlimited internet at 1 Mbps and WiFi valid for 7 days. The weekly fee is THB 88 automatically charged every 7 days. If the account balance is insufficient for weekly fee, speed will be throttled to 64 kbps for 7 days after the period Internet usage will be stopped until account balance is sufficient for weekly fee. Regular and special Net SIM packages (see below) can be added. It is available at FamilyMart stores.
  • Zeed: This SIM is targeted to teens and has been one of their best plans, but seems to be faded out. On activation, it includes 500 MB of data, and 2 GB of YouTube data for 1 month. It also includes AIS Super WiFi. These data allowances renew for future months if you top up at least THB 100 per month. However, this SIM is very difficult to find, and may be sold by shops at a mark-up over face value (e.g. 99 THB rather than 50 THB).
  • Net Marathon: These are preset SIM cards with unlimited data for 6 or 12 months at defined speeds:
    • for 6 months @ 1 Mbps: THB 600, @ 4 Mbps: THB 1400
    • for 12 months @ 1 Mbps: THB 1200, @ 4 Mbps THB 2500
  • Zodiac SIM: This SIM comes in 12 different zodiacs. It's sold for THB 99 and contains 500 MB data and WiFi for 7 days and another 1 GB data as bonus if you top-up at least THB 150.
  • Others: AIS has some other SIM cards, but most are probably not of interest to visitors like one with your zodiac. Their tourist SIM called Traveller SIM and their roaming SIM called One2Fly are featured further below in the article.

High speed data packages[edit | edit source]

AIS has a rather large and confusing range of data add-on packages (in addition to their many SIM card types, some of which already come with data). These data packages on up to 4G/LTE can be activated on all their SIM cards from above.

Data 1 day 3 days 7 days 30 days
100 MB 9 THB
200 MB 15 THB
600 MB 20 THB
1 GB 35 THB 65 THB 99 THB 199 THB
1.5 GB 39 THB 69 THB 109 THB 229 THB
2 GB 45 THB 75 THB 115 THB 239 THB
3 GB 49 THB 79 THB 119 THB 399 THB
4 GB 69 THB 99 THB 135 THB 450 THB
5 GB 75 THB 105 THB 155 THB 488 THB
8 GB 89 THB 149 THB 199 THB 599 THB

For activation use their app or go to this page, enter your phone number and you will get the activation code by SMS.

Subscribers will be able to use the package allowance after receiving SMS confirmation. If any internet usage allowance has not been used after the package validity ends, the remaining internet allowance will be forfeited. Excess usage will be calculated at the rate of your main package. Service rates are 7% VAT exclusive.

Low speed data packages[edit | edit source]

Furthermore, some throttled packages are sold with "unlimited data" in different speeds. However, since 2019 these are no longer real unlimited packages as after some threshold they are capped to 128 or 64 kbps/s.

max. Speed Data Time Price
64 kbps unlimited 30 days 29 THB
512 kbps 500 MB 24 hours 22 THB
2.5 GB 7 days 89 THB
7.5 GB 30 days 300 THB
1 Mbps 500 MB 24 hours 25 THB
2.5 GB 7 days 120 THB
7.5 GB 30 days 350 THB
4 Mbps 1 GB 24 hours 32 THB
7 GB 7 days 220 THB
20 GB 30 days 650 THB
6 Mbps 1.5 GB 24 hours 45 THB
9 GB 7 days 270 THB
25 GB 30 days 850 THB
10 Mbps 2 GB 24 hours 55 THB
14 GB 7 days 330 THB
33 GB 30 days 1100 THB

For activation use their app or go to this site, pick your pack, enter your number and receive the SMS activation code.

AIS 1-2-call unlimited offer Dec 2019 2020.jpeg

As of early 2020 AIS has a special promotion with unlimited volumes only for new SIM cards. It must be activated within 7 days of card activation and works only if no other package has been applied to the card before:

  • max 4 Mbps: 150 THB, activation: *777*967*306650#
  • max. 10 Mbps: 200 THB, activation: *777*968*306650#

It auto-renews for up to 12 months, if account balance allows it.

Social media packages[edit | edit source]

Social media users can add these packs with unlimited use of Facebook, Line, Instagram and WhatsApp:

  • for 24 hours: incl. 300 MB general data @ 384 kbps: 17 THB, activation: *777*766#
  • for 7 days: incl. 100 MB general data: 59 THZB, activation: *777*7013#

Tourist SIM: AIS Traveller SIM[edit | edit source]

Alternatively, AIS offers their Traveller SIM to visitors in three different starter packs:

  • for 160 THB: 5 GB data, 15 THB call credit, free social apps and AIS WIFI for 5 days at AIS shops and retailers.
  • for 299 THB: 15 GB data, 15 THB call credit, free social apps and AIS WIFI for 8 days at major airport stores, other AIS stores and Family Mart nationwide.
  • for 599 THB: 30 GB data, 15 THB call credit, free social apps and AIS WIFI for 30 days at AIS stores nationwide.

All data beyond the quota is throttled to 64 kbps. On all Traveller SIMs the cheap IDD prefix 00300 enables calls to some destinations like Germany or China at 1 THB per min. For more countries use 003 prefix for reduced call rates.

The default data rate outside packages is 2 THB per MB. These add-ons are advertised for the Traveller SIM (tax incl.), but in fact you can add any regular package shown above too:

Price Data Validity Activation
50 THB 160 MB 1 day *777*7081#
270 THB 1.5 GB 10 days *777*7082#
690 THB 3 GB 15 days *777*7083#
9.63 THB unltd. WiFi 1 hour *777*380#

When used up, max. speed will be throttled from 42 Mbps to 64 kbps. For WiFi an 1 hour usage period is counted from log-in and log-out time. The username and password received via SMS is valid for 24 hours.

AIS WiFi passes[edit | edit source]

AIS has many WiFi hotspots, especially in shopping malls and airports. AIS Super WIFA Packs are available with unlimited data volumes:

Price Time Activation
9 THB 1 hour *777*380#
19 THB 5 hours *777*381#
29 THB 1 day *777*382#
99 THB 30 days *777*384#

You will need to purchase any AIS SIM card (for 50 THB) in order to buy a WiFi pass. The 99 THB package enables additional access to AIS Super WiFi, which has superior speeds (tested up to 150/150 Mbps in real world use) compared to the normal WiFi (capped at 10/1 Mbps).

Some SIMs and packages come with WiFi; to obtain the password dial *388*1# or get it online.


Roaming SIM: SIM2Fly[edit | edit source]

The AIS SIM2Fly was originally meant for outbound Thai tourists, but is now being distributed throughout the region, because it offers quite good roaming rates. The SIM2Fly SIM card comes in 2 varieties:

  • 399 THB: SIM card for certain countries in Asia and Australia for 10 days
  • 899 THB: SIM card for certain countries in Europe and the Americas for 15 days

The Asian version comes with 6 GB roaming data at 3G and 4G/LTE speeds and is valid for 10 days in China (incl. Tibet), Japan, South Korea, Singapore, Malaysia, Hong Kong, Laos, India (in certain states only), Taiwan, Macao, Philippines, Cambodia, Myanmar, Australia, Nepal, Indonesia, Qatar and Sri Lanka and now in Vietnam and Brunei too.

After the main package has expired, you can add a new data package. For more data in the same countries you can use following codes to extend your data package:

  • 1 GB valid for 2 days: 119 THB, activation by *111*356#
  • 4 GB valid for 8 days: 299 THB, activation by *111*354#

As the data package is 100 THB less then the price of a new SIM card, it may be worthwhile to keep your SIM active. You can extent the validity by various methods listed here.  AIS SIM2Fly can be found for sale all over SE Asia. Some online shops are selling SIM2fly SIM cards to foreign countries for a surcharge and delivery fees. To top-up from abroad you can use (5% fees apply for credit card payments and amounts start at 20 THB) or other agencies that can charge up to 30% fees.

Be aware of the strict Thai SIM cards validity rules: prepaid SIMs can expire in as little as 45 days after last use. Any top-up (regardless of the value) extends validity for another 30 days. To maintain a validity of one year then, you can top-up 12 times, getting 30 days with each top-up. Minimum top-up value is 10 THB, but most international agencies start at 20 THB only. As long as the SIM is active, your credit balance remains for next use. There is one online service that will automate this process to add 360 days to your prepaid SIM for a fee. Generally, these top-up requirements can make the deal much less attractive for occasional users, but remain a good option, if you buy and load it in Thailand for an onward journey through SE Asia.

As of 2019 the AIS SIM2Fly is now available as an eSIM, and initially supported by the iPhone Xr and Xs. The eSim has the same data plans of the conventional SIM, but no physical SIM is needed. The eSIM should work on any device with an embedded SIM that can scan a QR code to load the SIM profile. For now eSIMs can be purchased at AIS shops, on the AIS website, and various online resellers. Keep in mind eSIMs need to be reissued if you wish to switch phones or deactivate the plan.

You can switch the SMS language of the plan to English with code: *119*2#

More information[edit | edit source]

  • IDD prefixes for calling abroad: 003 (quality) or 00300 (budget on some plans like Traveller SIM, from THB 1 per min)
  • APN: internet

dtac[edit | edit source]


dtac for Total Access Communication is Thailand's 3rd largest network by the number of users. It's partly owned by Telenor group from Norway and is the network that owns the biggest wireless bandwidth in the country. Its prepaid brand is called Happy.

4G/LTE started in 2014 on 2100 MHz (B1) in Bangkok only and has been expanded in 2015 to Phuket and Pattaya and another 40 cities nationwide: 4G coverage map. In 2015 4G/LTE was started in the metro Bangkok area mostly on the additional 1800 MHz (B3) frequency which is much more common internationally. In June, 2018 DTAC started offering 4G+ on the rare 2300 MHz frequency through a deal with TOT. 5G is planned on 700 MHz.

Availability[edit | edit source]

You can get their SIM cards from almost any shop including at the airports, but if you prefer, you can obtain it directly from their stores. All new SIM cards are 4G SIM cards now and are sold for 49 THB.

  • Go Plearn SIM: comes with free basic internet at slow 64 kbps for lifetime (from other SIMs change by *103*55*9# for 30 THB)
  • No Limit SIM: comes with 5 days of unlimited internet @ 1 Mbps. This sells for 99 THB.
  • Super 4G SIM: comes with free YouTube streaming at night (midnight-8am), zero-rated music streaming through the Music Infinite app and 1GB per month for 7 days up to 12 months when top-up at least 150 THB per month (press *103*333*9#).
  • Social Hero SIM: is for social media users. It comes with free use of Facebook, WhatsApp, Instagram, Twitter, Line, WeChat, BeeTalk, Pantip and Kakao for 30 days being extended to a year when you top-up at least 100 THB per month. 1 GB data for 7 days @ 42 Mbps being extended to a year when top-up at least 150 THB per month (press *103*333*9#).
  • Other SIMs: Some other SIMs are sold too without or different benefits and promotions. For their roaming and

High speed data packages[edit | edit source]

Default rate for data is on all prepaid SIM cards 1.99 THB per MB. dtac offers two main categories of packages: those with a certain high-speed volume that is throttled when used up and those that are reduced in speed from the start and are called 3G or light packages.

For the first category, you get connection at full 4G/LTE speed up to 100 Mbps for a certain amount of data, then your speed will be capped at the stated fair use policy (FUP) maximum speed which is varied respective to the plan you choose (but you can use them as much as you like, they are unlimited after all).

Validity Price Data Overuse Extras Activation
24 hours 9 THB 100 MB cut off free Facebook *104*851*9#
19 THB 500 MB 64 kbps *104*881*9#
29 THB 500 MB 128 kbps free dtac calls *104*911*9#
29 THB 1 GB 64 kbps *104*882*9#
5 days 99 THB 500 MB 128 kbps free dtac calls *104*912*9#
7 days 59 THB 400 MB cut off free Facebook *104*852*9#
79 THB 600 MB 128 kbps free music streaming *104*883*9#
99 THB 2 GB 64 kbps *104*342*9#
99 THB 4 GB cut off online only
129 THB 1.5 GB 128 kbps free dtac calls *104*913*9#
149 THB 5 GB 64 kbps *104*315*9#
30 days 199 THB 500 MB 64 kbps 80 all-net mins *104*491*9#
199 THB 1 GB 128 kbps *104*349*9#
199 THB 1.5 GB cut off free Facebook *104*853*9#
299 THB 750 MB* 64 kbps 100 all-net mins *104*492*9#
299 THB 5 GB 64 kbps *104*325*9#
399 THB 3 GB * 64 kbps 150 all-net mins *104*493*9#
399 THB 3.5 GB 128 kbps free dtac calls *104*914*9#
499 THB 4 GB * 64 kbps 200 all-net mins *104*494*9#
499 THB 5 GB 128 kbps free dtac calls *104*915*9#
499 THB 10 GB 64 kbps *104*320*9#
699 THB 8 GB * 64 kbps 300 all-net mins *104*495*9#
799 THB 10 GB 128 kbps free dtac calls *104*916*9#
1999 THB 20 GB 128 kbps free dtac calls *104*917*9#

(*) = these packages have unlimited dtac WiFi included

The 4 GB for 99 THB option only appears online. You need to find it on the mydtac website or app.

Low speed data packages[edit | edit source]

For light data users, dtac has Lite or so-called 3G Packages that are reduced in speed from the beginning. They used to be unthrottled, but now come with a volume at the given speed before throttled to 128 kbps:

max. Speed Data Time Price Activation Extras
384 kbps 400 MB 24 hours 15 THB *184*871*9#
500 MB 24 hours 19 THB *104*691#
unlimited 7 days 24 THB *104*483*9# free dtac calls + WiFi
unlimited 7 days 144 THB *104*484*9# free dtac calls + WiFi
512 kbps 300 MB 24 hours 15 THB *104*872*9#
500 MB 24 hours 22 THB *104*693#
1.5 GB 7 days 79 THB *104*857*9#
2.5 GB 7 days 89 THB *104*629#
7.5 GB 30 days 300 THB *104*649#
1 Mbps 500 MB 24 hours 25 THB *104*693#
2.5 GB 7 days 100 THB *104*659#
7.5 GB 30 days 350 THB *104*696#
4 Mbps 1 GB 24 hours 32 THB *104*694#
7 GB 7 days 220 THB *104*679#
20 GB 30 days 650 THB *104*697#
10 Mbps 2 GB 24 hours 55 THB *104*695#
14 GB 7 days 330 THB *104*689#
33 GB 30 days 1100 THB *104*698#

All overuse is at 128 kbps. Check balance in packages by *101*1*9#.

Social media packages[edit | edit source]

These add-ons can be used for unlimited social media and music streaming:

  • unlimited entertainment (YouTube, Tidal, Deezer, Apple Music, etc..): for 1 hour: 10 THB, *104*522*9#, for 24 hours: 19 THB, *104*523*9#, for 7 days: 79 THB, *104*524*9#
  • YouTube for 1 hour: 9 THB, *104*867*9#
  • unlimited music streaming (Tidal, Deezer, Apple Music, etc.): for 24 hous: 7 THB, *104*573*9#, for 7 days: 19 THB, *104*574*9#, for 30 days: 49 THB, *104*575*9#
  • Facebook for a day: 5 THB, *104*405*9#
  • Viber for a day: 5 THB, *104*600*9#; for a week: 19 THB, *104*601*9#, for a month: 49 THB, *104*602*9#
  • WhatsApp for a week: 19 THB, *104*88*9#
  • Line for a week: 19 THB, *104*421*9#

WiFi passes[edit | edit source]

For dtac WiFi, when not included in your data pack, special passes are sold. You must obtain your username and password by dial *4000# and then you can connect any of your device (can be your laptop or a tablet) to all dtac WiFi hotspots. The WiFi usage is unlimited. dtac WiFi can be found mostly in shopping centres and airports.

  • 19 THB: 1 hour, activation: *104*619*9#
  • 39 THB: 24 hours, activation: *104*639*9#
  • 69 THB: 30 days, activation: *104*669*9#
  • 99 THB: 30 days including 3BB WiFis, activation: *104*699*9#

Data is unlimited on the WiFi. For your password dial *400*9#.

Roaming Add-Ons - Go Travel[edit | edit source]

For abroad dtac offers new roaming add-ons, called Go Travel:

  • for neighboring countries (Cambodia,Laos, Malaysia, Myanmar): 99 THB for 2 GB for 7 days
  • for Asia (see countries at Go Inter below), Australia, USA: 399 THB for 6 GB for 10 days
  • for worldwide travel: 899 THB for 6 GB for 15 days

These packages can be added online and start immediately. Data is throttled to 128 kbps for the remainder of the active period after the high-speed allowance is used up. You can buy the same packages as a new SIM card called Go Inter (see below).

Tourist SIM: Happy Tourist SIM[edit | edit source]

dtac also sells SIM cards with short validity and "unlimited" data for tourists. The SIM card is called Happy Tourist SIM. It comes in 4 varieties of starter packs and is on 2G/3G/4G:

  • Happy Tourist SIM 49: 49 THB, with 15 THB credit included valid for 35 days
  • Happy Tourist SIM 149: 149 THB, with 5 GB for 4 days
  • Happy Tourist SIM 299: 299 THB, with 15 GB for 8 days
  • Happy Tourist SIM 599: 599 THB, with 30 GB for 15 days

If used up, data will be throttled to 384 kbps for the rest of the running time or 2 THB per MB beyond. Package change fee is 85 THB. Check allowances by *101*1*9#.

You can actually buy their Tourist SIM online here and get it shipped overseas for a whopping THB 350 surcharge worldwide. You can also find the Amazon to be sent abroad. These add-on packages are sold for the Tourist SIM valid for 30 days:

  • 2.5 GB: 319.93 THB, activation: *104*353#
  • 4.5 GB: 426.93 THB, activation: *104*21#
  • 9 GB: 747.93 THB, activation: *104*344#

Some regular data packs may also be added.

Roaming SIM: SIM GO! inter[edit | edit source]

After the success of SIM2Fly by AIS dtac has revamped their roaming SIM called SIM GO! inter. This SIM is available in their airport shops in Bangkok, Phuket and Samui and in many dtac stores. Starter packs are sold in three varieties:

  • for Bangladesh, Cambodia, China (incl. Tibet), Hong Kong, India, Indonesia, Israel, Japan, Kazakhstan, Korea (South), Laos, Macau, Malaysia, Myanmar, Pakistan, Philippines, Qatar, Singapore, Sri Lanka, Taiwan, Uzbekistan, Vietnam, Australia and the US:
    • with 6 GB for 10 days: THB 399
    • like above plus 30 mins of domestic calls: THB 499
  • worldwide in Asia, AUS, US and Europe added with 6 GB for 15 days: THB 899

These starters can be added by these add-on packages (not available to regular dtac SIM cards):

  • for Asia, AUS, US:
    • 1 GB for 3 days: THB 199, activation: *104*732*9#
    • 5 GB for 10 days: THB 349, activation: *104*732*9#
  • for neighboring countries (Myanmar, Laos, Cambodia, Malaysia): 2 GB for 7 days, activation: *504*799*#

Be aware that his SIM card follows Thai top-up rules with a validity of only 30 days for any top-up.

Also note that while not officially advertised, the Asia/AUS/US SIM does work in certain countries in Europe, supporting Switzerland (Swisscom), Austria (Drei), Italy (Vodafone), Hungary, Montenegro, Bulgaria, Serbia, Sweden, and Norway (all Telenor). Use in other European countries requires the "worldwide" SIM.

More information[edit | edit source]

  • IDD prefixes for calling abroad: 004 (quality) or 00400 (budget only on the Tourist SIM, starting at 1 THB per min for many countries)
  • APN:
  • Website: dtac smartphone SIM , dtac data packs

TrueMove H[edit | edit source]

True move.jpg

TrueMove H is Thailand's 2nd largest network and the most heavily advertised. TrueMove is part of the larger True Corp. conglomerates, owned by CP Group which is the biggest retailer owning all 7-Eleven and Tesco stores in Thailand.

They were the first provider in to bring 4G/LTE on the 2100 MHz (B1) to Thailand. Its 4G/LTE coverage is the best so far in the country and comprises 80% rising to 96% by the end of 2016: 4G coverage map in Thai and list in English. In 2015 the much more usual 1800 MHz (B3) was added for 4G/LTE as well as 850 and 900 MHz (B8) in 2016. 5G has started in 2020 on 2600 MHz (n41).

Availability[edit | edit source]

You can get their SIM cards from almost everywhere, but you should obtain it directly from any of the True Corp. stores (including True Online and True Visions stores) or 7-Eleven kiosks. Electronic top-ups are sold at all 7-Eleven stores or Family Mart. There, you have to know and enter your number. Most of their SIM cards are 4G/LTE enabled now, but there are some old 3G SIMs still around. Retail price is 10 THB in promotions and regular 49 THB.

When you arrive at BKK airport, you should check their promotions at their store in the arrivals hall at concourse A, 2nd floor, opposite Gate 5. They offer often promotions that are not available otherwise and are mostly for starting-up and the first package only. You may also see their free SIM stand at the airports in Chiang Mai or Phuket.

High speed data packages ('4G packs')

All of their SIM cards are now 4G/LTE enabled and are sold for THB 0-49 with very little credit. Speed is up to 100 Mbps on 4G/LTE. Default rate outside package is 1.50 THB per MB. These 4G/LTE packages can be booked on all 4G SIM cards. For all prices add 7% taxes:

Price Data Validity Overuse Activation
15 THB 400 MB 1 day default rate @

1.50 THB / MB

39 THB 1.5 GB *900*1924#
59 THB 800 MB 7 days *900*1925#
99 THB 2 GB *900*1926#
199 THB 1.5 GB 30 days @ 384 kbps *900*8837#
299 THB 2.5 GB *900*8838#
399 THB 4 GB *900*8839#
599 THB 7 GB *900*8840#
699 THB 9 GB *900*8841#
799 THB 12 GB *900*8842#

Daily and weekly plans are once off and can be activated new anytime. All monthly plans auto-renew after 30 days. For more data on monthly plans, add one of these add-ons:

  • 179 THB: 1 GB, 30 days, *900*8936#
  • 279 THB: 2 GB, 30 days, *900*8937#
  • 379 THB: 3 GB, 30 days. *900*8938#

Low speed data packages ('3G packs')[edit | edit source]

You can simply get one of their prepaid SIM cards and add from their big variety of data packs. For the "unlimited" internet plans below, you get connection at full speed for a certain amount of data, then your speed will be capped at the stated fair use policy (FUP) maximum speed which is varied respective to the plan you choose. All overuse is throttled to 128 kbps. These packages used to be called 3G packs, but work on 4G/LTE too, but throttled:

max. Speed Data Time Price Activation
512 kbps 500 MB 24 hours 22 THB *900*8319#
2.5 GB 7 days 89 THB *900*8320#
7.5 GB 30 days 300 THB *900*8321#
1 Mbps 500 MB 24 hours 25 THB *900*8322#
750 MB 48 hours 35 THB *900*8334#
2.5 GB 7 days 120 THB *900*8323#
7.5 GB 30 days 350 THB *900*8324#
2 Mbps 750 MB 24 hours 28 THB *900*8335#
1.2 GB 48 hours 45 THB *900*8336#
4.5 GB 7 days 150 THB *900*8337#
12.5 GB 30 days 450 THB *900*8338#
4 Mbps 1 GB 24 hours 32 THB *900*8325#
1.75 GB 48 hours 55 THB *900*8339#
7 GB 7 days 220 THB *900*8326#
20 GB 30 days 650 THB *900*8327#
6 Mbps 1.5 GB 24 hours 45 THB *900*8328#
2.5 GB 48 hours 75 THB *900*8340#
9 GB 7 days 270 THB *900*8329#
25 GB 30 days 850 THB *900*8330#
10 Mbps 2 GB 24 hours 55 THB *900*8331#
3.5 GB 48 hours 86 THB *900*8341#
14 GB 7 days 330 THB *900*8332#
33 GB 30 days 1100 THB *900*8333#

For all final prices add 7% taxes. All overuse is at 128 kbps.

Tourist SIM: 4G Tourist SIM[edit | edit source]

TrueMove H sells special SIM cards for tourists too. The tourist SIM card is now called 4G Tourist SIM. In 2016 True's 4G/LTE has been opened for the tourist SIM. They come in 3 different starter packs:

  • 49 THB: with unlimited True WiFi and social apps for 24 hours, 15 THB call credit for 30 days
  • 299 THB: with 15 GB data, unlimited True WiFi, social apps and 100 THB call credit for 8 days
  • 599 THB: with 30 GB data, unlimited True WIFi, social apps and 50 THB call credit for 15 days

To activate, type *123#. After the included bundle has expired or used up, you can add these combo top-up bundles that include True WiFi: 

Price Data Airtime Validity Activation
150 THB 1 GB 50 THB 3 days *900*8984#
250 THB 3 GB 100 THB 8 days *900*1756#
550 THB 6 GB 50 THB 30 days *900*1720#
550 THB 8 GB 50 THB 15 days *900*1719#
800 THB 10 GB 50 THB 30 days *900*1721#

Default data outside packs or for overuse is 1.5 THB per MB. These bundles above are officially advertised for the Tourist SIM. Unofficially, their regular 3G and 4G packs have sometimes worked in the past, so you might give them a try. However, effective 2018, this seems to be discontinued and all attempts to activate a regular bundle on a Tourist SIM seems to usually be denied.  

WiFi packages[edit | edit source]

True has like dtac and AIS many WiFi hotspots throughout the country. They have the biggest WIFI network with more than 100,000 hotspots: Hotspot Locator. When not included in your plan, they offer these packages for a max. speed of 200 Mbps (add 7% taxes):

  • for 1 day: 39 THB, activation: *900*82#
  • for 1 week: 59 THB, activation: *900*84#
  • for 1 month: 100 THB, activation: *900*83#

To acquire your WiFi password dial *871*4# for free. The weekly and monthly packages auto-renew. More info about their WiFi.

Roaming SIM: Travel SIM[edit | edit source]

Similar to AIS and dtac they sell a SIM for roaming in Asia or worldwide. The following starters are available:

  • for SE Asia with 6 GB for 8 days: THB 399
  • worldwide with 6 GB for 15 days: THB 899

Their Travel SIM Asia includes 20 countries and can be added:

  • for 3 more days: 1 GB (hard cap) for 150 THB by *115*150#,
  • for 8 more days: 4 GB (throttled to 128 kbps after) for 299 THB by *115*299#.

The SIM is activated as soon as it connects to a roaming network. Roaming in China is on China Mobile network, so check our China article for details on phone compatibility. However, like other roaming SIMs in China, data is not censored. The APN may need to be set manually to 'internet' and username/password 'true'.

More information[edit | edit source]

  • IDD prefixes for calling abroad: 006 for quality or 00600 for budget (on the Tourist SIM starting from 1 THB per min to major countries)
  • APN: internet - username and password: true
  • Website partly in English:
  • To change SMS notifications to English: Press *700 <call>, then 1 (For English), 5 (Change Language), 2 (SMS), 2 (English), 1 (Confirm)
  • or press 9304 <call>, then follow voice prompts to switch language between Thai and English.
  • check your remaining balance by 9302 <call> (voice response) or *123# <call> (SMS response).

My (by CAT)[edit | edit source]


My is a MVNO operated by CAT Telecom Public Company Ltd., the state-owned company that runs Thailand’s international telecommunications infrastructure, including its international gateways, satellite, and submarine cable network connections. 

It's the 4th largest mobile network operator in Thailand and owns spectrum on the 850 Mhz frequency, rents it out to True Move. In return it can use 20% of the bandwidth for their own My by CAT operation and other MVNOs (see below). Towers and network are operated by True Move for their own 3G 850 Mhz. In 2016 they started national roaming with True for 4G/LTE. To all prices below add 7% taxes.

Frequencies and coverage[edit | edit source]

My has only 3G/HSPA+ on 850 Mhz (= B5) without fall-back to 2G. As My uses the same 850 MHz network as True Move, their 3G coverage is the same. By 2014 it had a coverage of approximately 97% of population and consisted of around 14,000 BTS. But as there are way less users on CAT's 20% share as they have roughly a market share including MVNOs of 1-2% so far.

Starting in 2016 they opened up 4G/LTE access by national roaming on the 4G/LTE 1800 MHz and 2100 MHz network of True Move. Summing up, for the CAT offers below you need 3G on 850 MHz and 4G/LTE on 1800 and 2100 MHz (B3, B1).

Availability[edit | edit source]

My by CAT shops and CAT service centers are now showing up in some shopping malls (locator in Thai-English).  

Top-up vouchers can be found at various locations like CAT stores, AJ Sabaidee top-up kiosks, U Top-up at Big C and postal offices, Tesco Lotus and 7-Eleven (only for THB 100 and 300). To top-up by code type *901*<voucher code>#. To check balance type *902#.

Default rate[edit | edit source]

For cheap data by MB you can change to MY Net plan by *905*03# for free. It has the lowest default rate of 0.50 THB per MB. Check your base plan by *905*00#.

High speed data packages[edit | edit source]

For short-time these packages in full 3G and 4G speeds are given out:

  • for 24 hours: 500 MB THB 19 - *906*146#, 1 GB THB 29 - *906*147#, 2 GB THB 39 - *906*150#, 3 GB THB 49 - *906*153#,
  • for 7 days: 1 GB THB 39 - *906*148#, 2 GB THB 49 - *906*151#, 3 GB THB 59 - *906*154#, 4 GB THB 69 - *906*156#
  • for 15 days: 1 GB THB 59 - *906*149#, 2 GB THB 69 - *906*152#, 3 GB THB 79 - *906*155#, 4 GB THB 89 - *906*157#

These monthly plans on 3G and 4G/LTE roaming on True with full speed are offered:

  • 1 GB: THB 199 - activation: *906*288#
  • 3 GB: THB 299 - activation: *906*290#
  • 6 GB: THB 399 - activation: *906*292#
  • 12 GB: THB 499 - activation: *906*294#
  • 18 GB: THB 599 - activation: *906*296#
  • 36 GB: THB 899 - activation: *906*298#

All packages are for 31 days, overuse is throttled to 384 kbps. To all prices add 7% taxes.

Low speed data packages[edit | edit source]

Similar to major providers CAT also offers capped packages with unlimited slow speed:

  • max. 1 Mbps: 1 GB for 1 day = THB 25; 3 GB for 7 days = THB 120, 10 GB for 31 days = THB 299
  • max. 2 Mbps: 1 GB for 1 day = THB 28; 6 GB for 7 days = THB 150, 15 GB for 31 days = THB 399
  • max. 4 Mbps: 1.5 GB for 1 day = THB 32; 9 GB for 7 days = THB 220, 20 GB for 31 days = THB 599
  • max. 6 Mbps: 1.5 GB for 1 day = THB 37; 12 GB for 7 days = THB 270, 25 GB for 31 days = THB 799
  • max. 8 Mbps: 2 GB for 1 day = THB 43; 15 GB for 7 days = THB 300, 30 GB for 31 days = THB 899
  • max. 10 Mbps: 2 GB for 1 day = THB 50; 18 GB for 7 days = THB 330, 35 GB for 31 days = THB 999

To all prices above add 7% VAT. All overuse is at max. 384 kbps.

More information[edit | edit source]

  • IDD prefix for calling abroad: 009 starting at THB 1.50 to some European, Asian countries and USA (list)
  • APN: internet
  • Website partly in English:

Penguin SIM (on CAT)[edit | edit source]


In 2016 some new MVNOs started mainly on the CAT network. The most visible so far is Penguin SIM by White Space. It's aimed at the Thai youth, but accessible to everyone and heavily marketed at small street vendors and other places. It has certain pros and cons, you should be aware of. It's on the 3G-only CAT network (see above). While it has a good coverage identical to True's 3G footprint, it doesn't offer a 2G fallback or 4G/LTE and you need to have a device capable of 850 MHz in 3G.

Penguin SIM has very low prices, but most of their rates are severely throttled. That means that they can be good for messaging like LINE (preferred messenger in Thailand) or basic internet, but inconvenient for browsing websites. All of their publications are in Thai only. To all the given prices below (except on the Tourist SIM) add 7% taxes.

Availability[edit | edit source]

All their SIM cards are sold for THB 49 with THB 20 credit when you top-up THB 50-100 only at street vendors and major kiosks chains. They are rarely offered at airports or tourist hotspots etc. On the street you will be told that you don't need registration. As it's required by law, you'll risk disconnection, but you might be fine for a short time. In a kiosk chain store let them register it for you.

Top-ups are available at the usual stores like FamilyMart and 7-Eleven. Check balance by *502#, check your number by *504#.

SIM plans[edit | edit source]

They offer different plans that can't be changed except from a classic or SIM Rider SIM to a Sud Soi SIM. As it's only written in Thai on the package, it might be hard to find out as they differ:

  • Classic Pinguin SIM is sold in some Family Mart stores for THB 49 with THB 15 credit valid for 30 days. Internet is included at THB 39 per day, but severely throttled at 128 kbps.
  • SIM Rider is sold in some 7-Eleven and Jiffy stores. It has unlimited data capped at 1 or 4 Mbps.
    • @ max. 1 Mbps: THB 20 for 24 hours - *555*81#; THB 55 for 3 days - *555*82*1#; THB 99 for 7 days - *555*83*1#; THB 279 for 30 days - *555*87*1#
    • @ max. 4 Mbps: THB 24 for 24 hours - *555*84#; THB 63 for 3 days - *555*85*1#; THB 119 for 7 days - *555*86*1#; THB 450 for 30 days - *555*88*1#
  • Me and You SIM is Penguin's newest starter pack and available in some 7-Eleven stores for THB 49 with THB 15 credit valid for 30 days. Internet is included at THB 20 per day, but severely throttled at 128 kbps.

On the Classic and Me and You SIM cards these high speed add ons (on 3G only) can be added:

Time Data Price Activation
24 hours 500 MB 25 THB *555*501#
1 GB 35 THB *555*502#
7 days 2 GB 79 THB *555*503#
15 days 4 GB 150 THB *555*504#
30 days 9 GB 250 THB *555*505#

For all prices add taxes. Overuse is at 128 kbps.

  • Tourist SIM is available in certain locations (mainly SuperRich currency exchange booths in Bangkok), comes with unlimited data at 1 Mbps for 24 hours and unlimited calls to other Penguin Tourist SIM users, and the following top-up packages, added through the Visit Thailand Card app, available for iOS or Android (not geo-blocked):
    • Unlimited @ 1 Mbps : 99 THB for 7 days
    • Unlimited @ 4 Mbps : 179 THB for 7 days
    • 4 GB full speed : 99 THB for 7 days, 120 THB for 15 days

Note that unlike with the other packages (and all other providers), VAT is included in Tourist SIM packages. You can extend validity by 3 months for 30 THB or by 6 months for 50 THB.

More infomation[edit | edit source]

  • IDD prefix for calling abroad: 009 starting at THB 1.50 to some European, Asian countries and the US
  • APN: internet
  • Website in Thai only:
  • Tourist SIM info page in English: here

Finn Mobile (previously LINE Mobile, on dtac)[edit | edit source]

Finn Mobile.jpg

LINE is the most popular social messenger in Thailand. In 2017 they teamed up with dtac and launched LINE Mobile powered by DTN on dtac's 3G and 4G network as a MVNO. They offer unlimited use of free Line services including Line Messenger, Line Calls, Line Video, and Line TV not debited from your data allowance. In 2019 Line Mobile was rebranded to Finn Mobile.

Availability[edit | edit source]

This SIM card is only available online through their website delivered by courier all over Thailand selecting one of their plans from below. For activation foreigners need to send a selfie with the SIM card and another pic with the photo of your passport. So it might not be so useful for travellers as it might take a while (they say 2-3 days) and you need a postal address in Thailand.

All management of the SIM card is made through their app available for iOS and Android. For payment it need to be linked to a VISA, MasterCard or a Rabbit Line Pay.

Data feature packages[edit | edit source]

All Line applications are free and basic data at low speed of max. 256 Kbps are for free as well as SMS. Fast data up to 100 Mbps are taken from one of these monthly combo plans which can be changed each month:

Pack Data Voice Price Promotion
S 5 GB 150 mins 399 THB
M 10 GB 200 mins 499 THB 189 THB
L 20 GB 300 mins 699 THB 279 THB
XL 30 GB 400 mins 899 THB 299 THB
XXL 40 GB 600 mins 1099 THB 329 THB
UL unlim. unlim 1999 THB 699 THB

For the packages marked with (#) a 50-70% discount shown as promotion in the table is given every month for max. 12 months.

For extra data you can add 1 GB at 60 THB.

More info[edit | edit source]

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