Happy Sim Thailand -- "for travelers"
Total Access Communication Public Company Limited or dtac is one of the leading telecommunication services providers in Thailand. It operates 800 MHz and 1800 MHz frequency bands, and boasts great coverage in Thailand.
Happy Instant SIM is part of the “Happy” Prepaid SIM brand by dtac. The SIM differentiates itself from existing SIMs in current market by being the only SIM card with user-friendly English instructions, packaging, and other beneficial services customized for both foreign leisure and business travelers visiting Thailand.
Happy Sim Thailand Sim Card
Thailand Prepaid Sim - Free Incoming Voice / Texts
Incoming calls and texts while in Thailand are FREE, regardless of where they originate. International calls are as low as 5 Baht (about 14 cents) to the USA. This sim card allows Unlimited prepaid iPhone data for unlocked iPhone 2G, 3G, 3GS. No Contract, No Credit Check.
$19.99
The Nokia 5140 -"Grab N Go" World Phone
The Nokia 5140 is a Swiss Army knife of a phone that can do everything but light your campfire. Unique, outdoorsy features set this phone apart from other phones. The 5140 sports a compass, a bubble level, a flashlight, a thermometer, a decibel meter, and an FM radio. What's more, it's a tri-band phone with support for global coverage. As a phone, the 5140 is rugged, and splashproof (but not submersible). $59.99
Motorola V3 -"Grab N Go"
Incl. Pure Prepaid USA 50 Min Sim
The MOTORAZR V3 is expertly crafted to deliver exceptional performance. Inside the stunning, ultra-thin design are advanced features like MPEG4 video playback, a Speakerphone, Bluetooth® wireless technology, a digital camera and more. The Razr V3 is has a mini usb connection for charging and data transfer.. See more phones!
Grab a V3 get out there!
Sale Price -$69.99 -BUYNOW
Activation Fee: There is None. On arrival in Thailand, just insert the sim card and turn your phone on. A welcome text is sent to your phone containing your telephone number. Dial *102*9# and "send" at any time to see your mobile number.
See User Guide English Doc 1 | Doc 2
Long Distance: You can make international calls to more than 229 countries around the world. Dial 004+country code+area code+phone number "send". Check international long distance rates for the Happy Sim.
411 Calls: Yes, Directory assistance is available at 1678 for the dtac call center (press 7 for English)
911 Calls: Emergency calls - Yes
Earliest Minute Expiration: All Happy prepaid sims cards come with a validity date. Every time your topup your call credit, the validity date gets extended (depending on how much your top-up). If no refill is made within 45 days after the sim's current validity date, the sim card will expire. Pleas esee user guide.
Switching price plans:
Take a look at current plan promotions before you arrive Thailand. You can then apply the current promo upon arrival using short codes.
Check your price plan by dialing *103*9# and "send". Current price plan is displayed on your screen.
Dial *1003 and follow the voice instructions.
Visit the web site at happy.co.th/english
Happy Sim Thailand
Customer Service: Customer care is offered and is reached via 1678 for Dtac Care Center.(press 7 for English) Customer service is of course multi-lingual English and Thai.
Headquarters address: Total Access Communication PLC.
319 Chamchuri Square Building
21 - 41 Floors
Phayathai Road, Pathumwan
Pathumwan, Bangkok 10330 Thailand
Credit Check: None is required.
Contract: None is required for Happy Sim Thailand Prepaid.
Data Plans: There are daily and monthly data packages which are activated by dialing 1678 from the handset. Speed is EDGE, GPRS. Click here to see the bundles available.
- 49 Baht gets 1 day Unlimited EDGE/GPRS
- 249 Baht gets 7 days Unlimited EDGE/GPRS
- 999 Baht gets 30 days Unlimited EDGE/GPRS
Roaming Charges: Call Dtac Care at 1678 to activate international service.
Call Rates:From 11pm-5am pat .55 baht per minute. Outside this time period, call rate will be 1 baht per minute.
There is a current promotion where you purchase 199 baht recharge and get 300 baht. Current promotions are listed on the Happy site. (get more details)
Text Messages: International SMS is one of the fastest, most efficient but cheapest way to communicate internationally with more than 173 countries at 5 baht (14 cents) per message.
Service Features: All phones feature call waiting, caller ID, voicemail and 3-way calling. Airtime rates apply.
Dialing Thailand Telephone Numbers:
Mobile numbers in Thailand will always start with 08 (ie 08-xxxx-xxxx). If you are having someone calling or text messaging you from abroad, don’t forget to have them remove 0 and then add +66 for the Thailand country code (+668-xxxx-xxxx)




The MOTORAZR V3 is expertly crafted to deliver exceptional performance. Inside the stunning, ultra-thin design are advanced features like MPEG4 video playback, a Speakerphone, Bluetooth® wireless technology, a digital camera and more. The Razr V3 is has a mini usb connection for charging and data transfer.. 

