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For your better experience everyday

New 700 MHz band

Higher 4G/5G quality with better coverage, covering indoor and remote areas across all regions

Complete band spectrum portfolio

Low, mid and high band spectrum and continuous network improvement

Massive MIMO

Network capacity improved by 3 times in high density areas for better data transmission experience

Installing 1 cell site per 1 hour*

17,872 cell sites on 2300 MHz within 1 year

**A cell site is a base station that supports 2300 MHz frequency band, which is cooperation with TOT under partnership agreement in which DTN reserves a right to operate by law. This is the average calculation of added cell sites for 17,872 stations during April 2018 – March 2020.

For your enjoyable journey with
dtac 5G

Implementing 5G-ready Massive MIMO technology to improve signal

More than 2,400 sites on 700 MHz

dtac 5G on 700 MHz in Bangkok, Chiang Mai, Khon Kaen, Nakhon Ratchasima, Phuket, and Surat Thani

Industry partnerships 5G on 26 GHz

Check your Phone’s 5G Compatibility

How to Check


Your dtac 5G Readiness

Dial *555# to check dtac 5G readiness

Coverage area


dtac Network

We are committed to continuously improve our network for our customer's

FAQ

  • Who will be eligible for 5G service?
    The service is available for both dtac postpaid and prepaid customers whose SIM card and phone are compatible with dtac 5G and in service area (6 major cities; Bangkok, Chiang Mai, Khon Kaen, Nakhon Ratchasima, Phuket, and Surat Thani). Customers can dial *555# to check readiness and activate 5G.
  • Are Finmobile customers able to use the service?
    We are sorry for the inconvenience. The service is not available for Finmobile at the moment. Please stay tuned for updates soon.
  • How many phone models in Thailand currently support 5G 700 MHz?
    Currently, there are more than 40 phone models that support dtac 5G 700 MHz with 21 models being readily available. Some models are still waiting for permission to update latest firmware or operate on dtac 5G 700 MHz from the makers. You can check device compatibility to dtac 5G in the above "Check device readiness" section.
  • How can I check device compatibility on dtac 5G by myself? On which channel?
    Customers in dtac 5G service area including Bangkok, Chiang Mai, Khon Kaen, Nakhon Ratchasima, Phuket, and Surat Thani, can now dial *555# to check readiness and activate 5G. You can check device compatibility to dtac 5G in the above "Check device readiness" section.
  • Does 5G icon appear on the screen?
    Yes, please notice the 5G icon on the phone.
  • Does the firmware need to be updated?
    For some mobile phones, phone companies have to provide the latest firmware version for update or grant a permission to dtac 5G 700 MHz.
    Customers can check device compatibility to dtac 5G in the above "Check device readiness" section and can refer to step-by-step guide on how to update the latest firmware version in "Firmware's latest update" section.
  • Why does my phone heat up or why is battery consumed quickly when on 5G?
    Heat of the phone or quick battery consumption rate depend on various factors. However, please rest assured that maintaining regular usage style or default setting will not create any impact to above problems.
  • How to check if my 5G-compatible device supports dtac 5G?
    You can check device compatibility to dtac 5G in the above "Check device readiness" section.
  • Do I need to replace my current SIM card with a new one?
    Generally, a SIM card issued within 2 years from present date is compatible by default. You can check device readiness by dialing *555# (free).
    In case of incompatible SIM card, please contact dtac shop for a SIM card replacement.
  • When and where will dtac 5G be officially available?
    dtac will introduce 5G services in six major cities, including Bangkok, Chiang Mai, Khon Kaen, Nakhon Ratchasima, Phuket, and Surat Thani. You can check dtac 5G service area in "dtac network service area" section above.
  • What is the proportion of 4G and 5G service?
    The latest technology adopted by dtac automatically enables an appropriate proportion for each area for the best Internet experience. dtac will never stop improving our networks for our customers.
  • How far can the signal reach?
    The signal range depends on signal sites in each area. You can rest assured that dtac's network team is working its best to extend the range to every corner in the country.
  • Are prepaid customers eligible to the service?
    Both dtac prepaid and postpaid customers are eligible. Make sure the speed of their Internet package supports 5G or the package offers unlimited speed.
  • Do I have to subscribe to a new package in order to use 700 MHz?
    Make sure the speed of your Internet package supports 5G or the package offers unlimited speed.
  • Will iPhone 12 be able to work on 5G 700 MHz?
    Yes, it will with some requirements.
    1) iOS 14.4 or more (except 14.5 beta)
    2) Carrier dtac 45.1
    3) Setting > Cellular > Cellular Data Option
    - Data Roaming on
    - Voice & Data: 5G Auto on
    - Data Mode: Allow More Data On 5G on
    4) If dual SIM cards are on, you need to deactivate another SIM card. Initially, dtac 5G is available in Bangkok, Chiang Mai, Nakhon Ratchasima, Khon Kaen, Phuket, and Surat Thani. The 5G icon will appear on the screen when you are in service area.
  • I'm using iPhone 12 with dtac 5G activated. However, my phone can't catch 5G signal when I'm in service area. What should I do?
    1) iOS 14.4 or more (except 14.5 beta)
    2) Carrier dtac 45.1
    If Carrier is not dtac 45.1 yet, you will receive a notification requiring an update. Then, click Update and follow the steps. In case that a notification has been off, please go to Setting =>General => About to resume all pop-up notifications.
  • The Carrier has already been updated to dtac 45.1 but I still can't use 5G 700 MHz (Only 3G signal is noticed). What should I do?
    After Carrier setting for dtac 45.1 is complete, 5G setting is automatically set as "5G Auto", which can sometimes catch 3G signal only. All you have to do is changing from 5G Auto to 5G On in Setting.
    1. Go to Setting
    2. Click Cellular
    3. Click Cellular Data Options
    4. Click Voice & Data
    5. Choose 5G On
  • I'm using iPhone 12 and I want to use 5G on eSIM but I'm not allowed to choose 5G On on both main SIM card and eSIM. What should I do?
    To use iPhone 12 on 5G for any networks, 5G function will not be working in case dual SIM cards are on. Please choose only 1 SIM card (1 number). Once iOS 14.5 is successfully updated by the operation system provider, 5G Dual SIM Dual Standby is then ready.
  • Which one is dtac 700 MHz reserved for? 5G or 4G?
    The 700 MHz band by dtac will be reserved for both 4G and 5G to widen dtac's signal to nationwide coverage for customer's better experience.
  • What is the benefit of 700 MHz?
    dtac aims to expand its 4G and 5G coverage area with the new 700 MHz for indoor, outdoor purposes and remote area. dtac has never stopped improving its service for the better customer's experience.
  • What is the highest speed of upload and download?
    The speed depends on device qualification, area, and timing. dtac 5G service on 700 MHz will enhance customer's Internet experience.
  • Does the stronger frequency impact the brain?
    dtac provides mobile frequencies in accordance with international standard and under supervision of NBTC. Impact to physical body is not evident. Researches from WHO suggest NBTC that mobile frequencies emitted from any signal sites will not have any impact to physical body.