Chiang Mai eSIM: Seamless Connectivity in Thailand’s Northern Rose
Explore the enchanting wonders of Chiang Mai with a ThailandeSIM’s Chiang Mai eSIM! Enjoy best-in-class coverage right across the city and surrounding areas, ensuring you’re always connected while discovering temples and mountains. Choose from unlimited data options or various validity plans perfectly suited for your Northern Thailand adventure. Our eSIMs connect you to Thailand’s best network carriers, providing reliable service, all backed by our dedicated 24/7 support.
Get best value Chiang Mai eSIM plans
Choose the best eSIM plans for Chiang Mai from the best local networks!
dtac
Unlimited 5G at MAX SPEED
*TRUE UNLIMITED without data cap
Thailand phone number included
From
$ 12.90
TRUE
50GB at MAX SPEED
*Unlimited at 384kbps
Thailand phone number included
From
$ 10.90
Compare all Chiang Mai eSIM plans
Each eSIM plan comes with different features. Look and select the best one for you!
| Plan | Validity | Data | Network | Phone number & features | USSD code |
| dtac eSIM 7 days (15GB + phone number) | 7 days | 15GB + 20GB promotion for eSIM activated before Dec 31, 2025 | dtac | Thailand local phone. Only support incoming calls | Query local phone number: *102*9# |
| dtac eSIM 8 days unlimited data + phone number | 8 days | Unlimited 5G at max speed - no data cap | dtac | FREE calls to all Thailand network numbers + UNLIMITED dtac Wifi + Free 15 baht credit + Special rate for International call via 00400* | Query local phone number: *102*9# |
| dtac eSIM 10 days 50GB + phone number | 10 days | TRUE Unlimited for eSIM activated before Dec 31, 2025 | dtac | Thailand local phone. Only support incoming calls | Query local phone number: *102*9# |
| dtac eSIM 15 days unlimited data + phone number | 15 days | Unlimited 5G at max speed - no data cap | dtac | FREE calls to all Thailand network numbers + UNLIMITED dtac Wifi + Free 100 baht calling credit + Free 15 baht credit + Special rate for International call via 00400* | Query local phone number: *102*9# |
| dtac eSIM 30 days unlimited data + phone number | 30 days | Unlimited 5G at max speed - no data cap | dtac | FREE calls to all Thailand network numbers + UNLIMITED dtac Wifi + Free 100 baht calling credit + Free 15 baht credit + Special rate for International call via 00400* | Query local phone number: *102*9# |
| TRUE eSIM 10 days 50GB + phone number | 10 days | TRUE Unlimited for eSIM activated before Dec 31, 2025 | TRUE | Thailand local phone. Only support incoming calls + FREE 5 chat apps (FB Messenger/ LINE/ WhatsApp/ Wechat/ Kakao Talk) | Dial *833# to check phone number + Dial *101*4*9# to check data balance |
| TRUE eSIM 7 days 15GB + phone number | 7 days | 15GB + 20GB promotion for eSIM activated before Dec 31, 2025 | TRUE | Thailand local phone. Top up to make calls and send SMS | Dial *833# to check phone number + Dial *101*4*9# to check data balance |
What you can expect
High-speed data
Experience the reliable
5G/4G/LTE local network.
Extensive
Get mobile data connection
in just a couple of minutes.
Keep number
Keep your current number
and use data with our eSIM.
Near-local rate
Goodbye to expensive roaming
fees. No hidden fee.
Elevate Your Chiang Mai Experience with Reliable Connectivity
Don’t let connectivity issues interrupt your northern Thailand journey! Our Chiang Mai eSIM provides instant activation, comprehensive coverage from city to mountains, and flexible plans at tourist-friendly prices. Order now before your trip and enjoy stress-free navigation through Chiang Mai’s winding streets, seamless access to translation apps at local markets, and the ability to share your magical mountain experiences in real-time.
How it works
Step 1
Choose your plan
Browse our travel data plans and pick the perfect option.
Step 2
Activate with one scan
We’ll email your QR code – simply scan to activate.
Step 3
You’re all set!
Enjoy unlimited access through our fast and reliable network.
Things to know
Data and voice service
For eSIM Chiang Mai, you’ll get data, calls with our eSIM, featuring a phone number from Thailand’s local networks.
Check compatibility
Ensure your device supports eSIM and is network-unlocked. Refer to our eSIM compatibility list before making a purchase.
Activation time
eSIM plan will be automatically activated right after installation. Therefore, it’s recommended to install eSIM 1 day before departure
15-day activation
Activate your data plan within 15 days of purchase. No cancellations, refunds, or changes after this period.
ONCE time scan
For any eSIM plan, please note that each eSIM QR code can only be scanned and installed ONCE. So, please do not delete the eSIM while using it. If you get any issue, please contact us for support.
Frequently asked questions
It is not necessary to show your passport when buying eSIMs at Thailandesim.com.
Your validity will start right after installation. It’s recommended to install 1 day before departure.
Yes! Our eSIM is specifically optimized to maintain connectivity in Chiang Mai’s surrounding mountains and national parks, ideal for trekking adventures and village homestays.
While specifically optimized for excellent coverage within Chiang Mai city and its popular surrounding attractions, your ThailandeSIM Chiang Mai eSIM will generally provide connectivity across 99% of Thailand, leveraging the country’s best networks.
After you place your order, we will send an email with your eSIM information, including QR code, confirmation code and activation guide within a few minutes. Just scan the QR code and follow the user guide.
Our Chiang Mai eSIMs are one-time-use eSIMs. After being activated, it will be ready for you to use until the expired date or the day when data runs out. If you remove eSIM from your phone, you will not be able to use it once again.
We provide 24/7 customer support via WhatsApp and email to assist with any issues during your Chiang Mai adventure. If you have any questions or encounter issues before or during your trip, our team is available around the clock to provide assistance.

The AIS 8-day plan provided good coverage throughout Chiang Mai and surrounding mountains. Used it during day trips to Doi Inthanon and Mae Rim. The 15GB at full speed was adequate for moderate usage, and the throttled speed still worked for messaging. The free chat apps feature was convenient for staying in touch. Good option for nature lovers.
Used the dtac 30-day plan during my extended Chiang Mai stay. The true unlimited data was essential for working remotely from cafes and co-working spaces. Excellent coverage from the old city to newer areas like Maya Mall. The international calling minutes to Korea were very useful. Outstanding value for long-term visitors to Northern Thailand.
Used the AIS 10-day plan while exploring Chiang Mai’s beautiful temples. The 30GB at full speed was sufficient for most activities, though I hit the limit with heavy photo uploads from Wat Phra That Doi Suthep. The 100 Baht calling credit was perfect for booking songthaew rides. Good coverage throughout the old city and surrounding temples.
Got the TRUE 10-day unlimited plan for my Chiang Mai cultural exploration. Perfect coverage at all the markets – Saturday Walking Street, Sunday Walking Street, and Warorot Market. Could easily translate menu items and communicate with vendors using translation apps. The unlimited data meant no worries about usage while navigating the winding streets.
The Chiang Mai eSIM itself works fantastic with true unlimited data and excellent city coverage. However, the dtac requirement to install only in Thailand created planning challenges. Once activated, the service was flawless throughout Chiang Mai with reliable mountain connectivity. Just wish installation could happen before arrival for better trip planning.