International Calling Rates
Connect with family, friends, or business contacts in Bangkok, Chiang Mai, Phuket, and beyond. Affordable per-minute rates with no hidden fees.
Thailand
Country code +66
$0.18
Landline
$0.18
Mobile
~60%
vs retail*
Same per-minute Sayfone rate for landline and mobile calls.
Average call quality
*Illustrative savings vs 2.5× directory rate — not a carrier quote.
Simple steps
Drag the slider to match your Thailand call volume. See what you're spending versus what you could be spending with Sayfone.
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220
min / month
~$8.82/min
~$6.66/min
~$3.96/min
~$0.90/min
$0.180/min
Annual saving vs. AT&T
Based on 220 min/month
GETTING STARTED
No downloads, no accounts, no complicated setup. Just open your browser and start calling any Thai number in seconds.
Instant access
Visit Sayfone from any device — desktop, tablet, or phone. No app to download or account to create.
Dialer
+00 000 000 00
Type the number you want to call, starting with +66. Drop the leading 0 from the local number. For example, a Bangkok landline 02-XXX-XXXX becomes +66 2 XXX XXXX.
HD audio from your browser
Hit call and you're connected in seconds. Enjoy HD voice quality at transparent per-minute rates — billed only for time used.
UNDERSTANDING COSTS
Traditional carriers and mobile plans often charge steep rates for calls to Thailand. Here's what drives the cost up — and how to avoid overpaying.
Major US carriers like AT&T and Verizon charge $3 or more per minute for pay-as-you-go international calls to Thailand. Even daily roaming passes cost $10–12/day, adding up fast on longer trips or for regular callers.
Thailand's telecom market has over 115 million mobile connections across operators like AIS, TrueMove H, and DTAC. International calls are routed through multiple carriers and interconnection gateways, each adding a layer of cost before the call reaches its destination.
Thailand's telephone numbering plan is managed by the National Broadcasting and Telecommunications Commission (NBTC). International calls are routed through licensed gateway operators like CAT Telecom, which control access and pricing for inbound international voice traffic.
Calls to Thai mobile numbers (starting with 06, 08, or 09) typically cost more than landline calls because mobile termination rates are higher. Since Thailand has an average of 1.6 mobile phones per person, most calls you make will be to mobile numbers.
Sources
Supports mobile market size and cost comparison claims
Supports numbering plan and NBTC regulatory claims
Supports telecom market valuation claim
CALLING OPTIONS COMPARED
From traditional carrier plans to messaging apps, there are many ways to connect with Thailand — each with different trade-offs in cost, quality, and reliability.
Traditional Carrier (AT&T, Verizon, T-Mobile)
US carriers charge premium rates for direct-dialed international calls to Thailand. Daily roaming passes ($10–12/day) reduce per-minute costs but add up quickly for frequent callers.
LINE (Thailand's Dominant Messaging App)
LINE is used by over 54 million monthly active users in Thailand — roughly 85% of the country's internet users. Its voice call feature works well when both parties have strong data connections, but it cannot reach Thai landlines or non-LINE users.
WhatsApp / Facebook Messenger
WhatsApp has a much smaller footprint in Thailand compared to LINE. While it's useful for international contacts, many Thai locals don't use it regularly. Calls require both parties to be on the app with a stable internet connection.
International Calling Cards
Prepaid calling cards offer lower per-minute rates than carriers but often have hidden fees, connection charges, and expiring balances. Quality can be inconsistent, and managing PINs and access numbers is inconvenient.
Sayfone (Browser-Based Calling)
Call any Thai landline or mobile directly from your browser. No app needed, no subscriptions, and transparent per-minute pricing. Works on any device with an internet connection.
Bar lengths reflect relative cost tiers for each option — not survey percentages.
APP LIMITATIONS
LINE dominates messaging in Thailand, but app-based calling has real limitations — especially when you need to reach a landline, a business, or someone in a rural area with unreliable internet.
Because Sayfone connects through real phone networks, your call reaches any Thai number — mobile or landline, LINE user or not, city or countryside. All you need is a browser.
The problem
LINE is ubiquitous in Thailand for messaging, but its voice calls only work between LINE users with active data connections. If you need to call a Thai business landline, a hospital, a hotel, or an elderly relative who doesn't use LINE, you're out of luck.
While Thailand's urban areas like Bangkok and Chiang Mai enjoy high-speed internet, rural regions — particularly in the northeast and northern highlands — still face limited broadband access. Only an estimated 19% of Thailand's population lives within 10 km of fiber-optic infrastructure, and connectivity in many villages is limited to shared Wi-Fi hotspots.
Unlike much of the world, Thailand's messaging market is dominated by LINE, not WhatsApp. If your contact in Thailand uses LINE exclusively — as most Thais do — a WhatsApp voice call simply won't connect.
If you're on a metered mobile data plan or international roaming, voice-over-IP calls consume data that may be billed at high rates. US carriers charge up to $2.05 per MB on pay-as-you-go roaming in Thailand, making a 'free' app call surprisingly expensive.
Sources
Supports fiber reach and rural connectivity claims
Supports rural digital divide claims
TIPS & ETIQUETTE
Thailand is in the Indochina Time Zone (ICT, UTC+7). Plan your calls around Thai customs and business hours to ensure your conversations go smoothly.
Thailand Time (ICT)
UTC+7
No daylight saving time
US Eastern → Thailand
+12 hours (EST) / +11 hours (EDT)
9 AM EST = 9 PM ICT
US Pacific → Thailand
+15 hours (PST) / +14 hours (PDT)
6 PM PST = 9 AM ICT (next day)
UK → Thailand
+7 hours (GMT) / +6 hours (BST)
2 PM GMT = 9 PM ICT
Use the Polite Greeting 'Sawadee Khrap/Ka'
Open your call with 'Sawadee khrap' (male speaker) or 'Sawadee ka' (female speaker). This is the standard Thai greeting and sets a respectful tone. Even if you continue in English, starting in Thai is always appreciated.
Speak Slowly and Clearly
English is widely understood in Bangkok's business districts and tourist areas, but may be limited in rural Thailand. Speak at a measured pace, avoid slang, and confirm understanding periodically.
Be Mindful of Thai Holidays
Thailand has many public holidays including Songkran (Thai New Year, mid-April), Loy Krathong (November), and the King's Birthday (July 28). Businesses may be closed and people may be travelling during these periods.
Confirm the Number Format Before Dialing
Thai numbers begin with 0 domestically. For international calls, drop the leading 0 and add +66. Mobile numbers start with 06, 08, or 09; Bangkok landlines start with 02.
Use Titles and Formal Address
Address Thai business contacts by their title and first name (e.g., Khun Somchai). Thais rarely use last names in conversation. 'Khun' is a universal respectful prefix for both men and women.
Keep the Tone Warm and Non-Confrontational
Thai business culture values harmony and indirect communication. Avoid raising your voice, expressing frustration, or being overly blunt. A friendly, calm tone builds trust and cooperation.
Allow Time for Relationship Building
Don't jump straight to business. Thai culture favors building personal rapport first. A few minutes of pleasantries about family, health, or recent events shows respect and makes the conversation more productive.
Follow Up After the Call
A LINE message or email summarizing key points after a business call is appreciated and common practice in Thailand. Many Thai professionals prefer LINE over email for day-to-day follow-ups.
Sources
Supports timezone and cultural notes
POPULAR DESTINATIONS
Whether you're calling family in Bangkok, coordinating travel in Chiang Mai, or reaching a resort in Phuket — here's what to know about Thailand's most-called cities.
Bangkok
Bangkok is the economic heart of Thailand with a metro population of over 10 million. Most international business calls to Thailand terminate here. The city area code is 2 (dial +66 2 for landlines).
Best time to call: 9 AM – 9 PM ICT for business and personal calls
Photo brief: Bangkok skyline temples river sunset Unsplash
Chiang Mai
Chiang Mai is a popular destination for expats, digital nomads, and retirees. It has a thriving co-working scene and strong internet infrastructure. The area code is 53 (dial +66 53 for landlines).
Best time to call: 9 AM – 8 PM ICT — slightly more relaxed pace than Bangkok
Photo brief: Chiang Mai temples mountains green landscape Pexels
Phuket
Phuket is a major tourist destination with hundreds of hotels and resorts. Calling ahead to confirm bookings or reach local businesses is common. The area code is 76 (dial +66 76 for landlines).
Best time to call: 9 AM – 6 PM ICT for hotel and business calls
Photo brief: Phuket beach turquoise water Thailand Unsplash
Pattaya
Pattaya is a popular coastal destination about two hours from Bangkok, attracting tourists and expat residents. It falls within the Chonburi province area code 38 (dial +66 38 for landlines).
Best time to call: 9 AM – 8 PM ICT
Photo brief: Pattaya coastline Thailand cityscape ocean Pexels
Chiang Rai
Chiang Rai is a growing destination in northern Thailand, home to the White Temple and close to the Golden Triangle. The area code is 53 (shared with the northern region; dial +66 53 for landlines).
Best time to call: 9 AM – 7 PM ICT
Photo brief: Chiang Rai White Temple Thailand Unsplash
DIALING GUIDE
Thailand uses the country code +66. All Thai phone numbers are 9 digits when dialed domestically (including the leading 0). For international calls, drop the 0 and add +66.
Thailand's numbering plan is managed by the NBTC (National Broadcasting and Telecommunications Commission) in accordance with ITU E.164 standards. The country uses a closed dialing plan — area codes must always be dialed, even for local calls.
+66 X XXXX XXXX
+66 X(X) XXX XXXX
| City / region | Code |
|---|---|
| Bangkok | 2 |
| Chiang Mai | 53 |
| Phuket | 76 |
| Pattaya / Chonburi | 38 |
| Chiang Rai | 53 |
| Khon Kaen | 43 |
| Hat Yai / Songkhla | 74 |
| Nakhon Ratchasima (Korat) | 44 |
| Udon Thani | 42 |
| Surat Thani | 77 |
Sources
Primary source for numbering plan structure and area codes
Supports format examples and mobile prefix information
COMMON QUESTIONS
Get answers to the most common questions about international calls to Thailand — from dialing formats to pricing and call quality.
Still have questions? Our support team is here to help.
Contact SupportEXPLORE MORE DESTINATIONS
Thailand is just one of the many countries you can call with Sayfone. Explore rates for other popular international calling destinations.
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