【Thailand eSIM】Dtac Unlimited Data ｜Works in Bangkok, Chiang Mai, Pattaya, Phuket & All Thailand

• This eSIM must be scanned and installed after arriving in Thailand. Installing outside Thailand will cause the eSIM to become invalid.

• The QR code will be sent to your email within 10 minutes of payment.

• Please ensure your device supports eSIM before ordering.

Thailand eSIM Features and Coverage

• Dtac network coverage across Thailand – reliable in all major cities and islands

• Excellent local internet experience

• Unlimited data plans do not throttle speed

• No routing through Chinese nodes — traffic runs on the local carrier's native network, so ChatGPT, Gemini and other AI services work normally

How to Choose Your Thailand eSIM Plan: Days and Data Explained

• Validity Period: Starts upon scanning the QR code. The first day counts until 23:59 Thailand Time; after 00:00, the second day begins

• Important: Must be scanned after arriving in Thailand; installing outside Thailand will make it invalid

• Contents: High-speed internet

• Coverage Area: All of Thailand

Thailand eSIM — Data Plans

• Budget Plan: 15GB total high-speed data; speed slows to 1Mbps after limit (still fast). Data only, no calls

• Travel Plan: 50GB total high-speed data; fair usage policy applies. Data only, no calls

• Business Plan: Unlimited high-speed data (no throttling). Fair usage policy applies – avoid large uploads/downloads in short periods. Data only, no calls

• Hotspot / Tethering: Supported (compatibility may vary; 1 eSIM per phone recommended)

• Local Carrier: Dtac

Thailand eSIM Installation and Important Reminders

• Important: Must be scanned after arriving in Thailand; installing outside Thailand will make it invalid

• Not compatible with iPads, tablets, customized devices, contract phones, carrier-locked phones, jailbroken or rooted devices

• Cannot activate without an internet connection

• QR code is valid for 30 days; avoid purchasing too early

• Follow the installation instructions included in your eSIM email

Thailand eSIM Customer Support

• For support, contact Line@ Official Account: @peanutmo (10:00-17:00, UTC+8 Time Zone). WhatsApp: +886-921-963-203

How to Check If Your Phone Supports eSIM

1. Dial *#06#
   If an EID appears, your phone supports eSIM
   (Please also confirm your device is not carrier-locked)
2. Refer to the compatibility list below
   (For reference only; we recommend confirming with your device manufacturer)

Thailand eSIM Installation Guide: From Compatibility Check to Landing

The full walkthrough is below. Following it end to end — scanning the QR code through to switching your data line after you land in Thailand — takes about ten minutes. If a step is unclear, the full installation guide covers it in more detail.

Thailand eSIM: Frequently Asked Questions

Why must the Thailand eSIM be installed after arrival?

The Dtac profile registers against the local network at activation. Scanning the QR code while still outside Thailand consumes the profile and it will not work. BKK, DMK, CNX and HKT all have free Wi-Fi, so install after you land.

Are the unlimited plans throttled?

The business tier is unlimited high-speed and is not throttled. The 15GB entry tier reduces speed after the allowance but stays connected — this is stated on the product page.

How much data do I need for a week in Thailand?

We would not recommend the smallest plan — leaving headroom is the safer choice. Maps, navigation, translation, social media and messaging add up to more than most people expect, and running out of data abroad is the worst moment to find that out. For most travellers around 3GB a day is a more comfortable starting point. Where this destination offers a total-data plan (10GB or 20GB, for example), that is usually our first recommendation: a heavy day will not leave you stuck, and the allowance spreads across the whole trip. If you stream video, upload a lot of photos, or need to share the connection with another device, an unlimited plan is the simplest answer.

How are the days counted on this Thailand eSIM?

Counting starts when you scan the QR code and activate. The first day runs until 23:59 (UTC+8 Time Zone) that same day, and the second day begins after 00:00. Activate after you arrive in Thailand rather than before you leave, so you do not waste a day.

When should I install the eSIM?

Install on your departure day while your phone still has internet — airport Wi-Fi works, or your home network before you fly. An eSIM cannot be activated without a connection.

How long is the QR code valid?

The eSIM must be activated within 30 days of delivery or it expires, and that is the buyer’s responsibility. Ordering about a week before departure is ideal rather than months ahead.

Which devices are not supported?

iPads, tablets, customised devices, contract phones, carrier-locked phones, and jailbroken or rooted devices are not supported. Before ordering, dial *#06# — if an EID appears your handset supports eSIM. Also confirm the phone is not locked to a carrier.

How soon will I receive it after paying?

The QR code is sent automatically to your contact email within about 10 minutes of payment. If it does not arrive, check your spam folder or contact our LINE official account @peanutmo / WhatsApp +886-921-963-203 (10:00-17:00, UTC+8 Time Zone).

Further Reading

Other destinations: Vietnam eSIMSingapore eSIMAll Southeast Asia plans