What is the country code for Thailand?

Thailand's country code is +66. Always use this when dialing from outside Thailand, including from South Korea.

How much does it cost to call Thailand on Sayfone?

Sayfone calls to Thailand cost 18¢/min, with transparent pricing or connection charges. You pay only for the time you talk.

Do I need to remove the leading 0 from Thai numbers?

Yes. Thai domestic numbers start with 0, but you must drop this when dialing internationally. Example: 02-1234-5678 becomes +66-2-1234-5678.

What is the time difference between South Korea and Thailand?

South Korea is 2 hours ahead of Thailand year-round. When it is noon in Bangkok, it is 2 PM in Seoul.

Can I call Thai mobile numbers?

Yes. Thai mobile numbers work the same way as landlines. Dial +66 followed by the 8-digit mobile number (after dropping the leading 0).

Do I need an app to call Thailand on Sayfone?

No. Sayfone calls are placed from your web browser. No app download is required.

Quick Answer

How to Call Thailand from South Korea

Call Thailand from South Korea by dialing +66 and the local number. Sayfone rates are 18¢/min with transparent pricing.

Start calling

Cost tools

🇰🇷From South Korea

To Thailand🇹🇭

$0.18

Per minute

+66

Country code

Call quality

Landline rate

$0.18/min

Mobile rate

$0.18/min

Same per-minute Sayfone rate for landline and mobile.

Average call quality

Steps at a glance

Enter +66 followed by the Thai number (without leading 0)
Review the rate: 18¢/min
Place the call from your browser

Sources

1
Thailand Numbering Plan
International dialing code reference

DIALING STEPS

Step-by-Step: Calling Thailand from South Korea

Follow these four simple steps to dial a Thai number from South Korea.

Open Sayfone or your phone app
Launch the Sayfone browser dialer or your phone's standard calling interface.
2
Enter the international dialing code
Dial +66 (Thailand's country code). This replaces any domestic prefix and connects to the Thai network.
```
+66
```
3
Enter the Thai number
Add the local Thai number. If the number begins with 0 (as domestic Thai numbers do), remove it. Use the remaining 8–9 digits.
```
For a Bangkok number 02-1234-5678, dial +66-2-1234-5678
```
Press call
Review the rate (18¢/min on Sayfone) and place the call. Standard connection timing applies.

Dialing format reference

+66

Use these patterns when entering a full international number to +66.

Mobile

+66 [8 digits] (drop leading 0)

Landline

+66 [2 digit area] [6–7 digits] (drop leading 0)

+66-2-1234-5678 (Bangkok landline)
+66-8-xxxx-xxxx (Mobile)

Major city area codes

Bangkok2

Chiang Mai53

Phuket76

Pattaya38

Sources

1
Thailand National Numbering Plan
Phone number format reference

DIALING RULES

Thailand Dialing Rules & Number Format

Thai phone numbers follow a standardized format. Understand these rules to dial reliably.

Always drop the leading 0

Thai domestic numbers begin with 0. When dialing internationally, remove this 0 and add +66 instead. Example: domestic 02-1234-5678 becomes +66-2-1234-5678.

Landline area codes (2–5 digits)

Thai landlines use 2- to 4-digit area codes (e.g., 2 for Bangkok, 53 for Chiang Mai). After the area code comes a 6- to 7-digit local number.

Mobile numbers (8 digits)

Thai mobile numbers are 8 digits after the country code +66. Common carriers are AIS, DTAC, and TrueMove, identified by their initial digit (e.g., 8, 9).

No pauses or special characters needed

Enter the full +66 number as a continuous string. Sayfone handles connection and routing automatically.

BEST TIMES TO CALL

Calling Tips: Time Zones & Best Hours

South Korea is 1 hour ahead of Thailand. Plan your calls during overlapping business hours or early mornings for personal contacts.

🇹🇭

Thailand observes Indochina Time (ICT, UTC+7) year-round with no daylight saving. South Korea uses Korea Standard Time (KST, UTC+9) year-round, making it 2 hours ahead. This gap is consistent throughout the year.

Time & windows

Business Hours (Overlap)

8 AM–12 PM KST = 6 AM–10 AM ICT

Early morning in Thailand; mid-morning in South Korea

Evening (Thailand)

6 PM–9 PM ICT = 8 PM–11 PM KST

End of business day in Thailand; evening in South Korea

🇰🇷Morning (Thailand-friendly)

6 AM–9 AM ICT (8 AM–11 AM KST)Best for business calls to Thailand

🇰🇷Midday (South Korea-friendly)

12 PM–3 PM KST (10 AM–1 PM ICT)Good overlap for quick conversations

🇰🇷Evening (Both regions)

6 PM–9 PM ICT (8 PM–11 PM KST)Suitable for personal or flexible calls

Calling tips

Thailand observes ICT (UTC+7) year-round with no daylight saving changes.
South Korea observes KST (UTC+9) year-round; the 2-hour gap is constant.
Check if your contact is in an office with set hours (common in Bangkok and major cities).
Weekend and holiday timing may differ; verify Thai public holidays before important calls.

Business etiquette

Thai business culture values respect and relationship-building; a brief greeting before the main topic is customary.
Avoid calling very early (before 6 AM) or very late (after 9 PM) unless agreed in advance.
Mobile numbers are common for business in Thailand; confirm contact details before your call.
Speak clearly and at a moderate pace; language barriers are common—patience helps.

Sources

1
World Time Zone Reference
Time zone verification tool

TROUBLESHOOTING

Common Issues & Restrictions

Most calls to Thailand from South Korea connect without issue. Here are solutions for rare problems.

Number format error

If dialing fails, verify you removed the leading 0 from the Thai number. Double-check the remaining digits. Example: 02-xxx-xxxx becomes +66-2-xxx-xxxx, not +66-02-xxx-xxxx.

Connection takes longer than expected

International calls may take 3–5 seconds to connect. This is normal. If the call does not connect after 30 seconds, hang up and try again.

Special numbers may not connect

Some government, emergency, or premium-rate numbers in Thailand may not route to international callers. Standard landline and mobile numbers always work.

Poor audio quality

If audio is unclear, try hanging up and calling again. Network conditions between carriers can fluctuate. Ensure both parties have a strong signal.

Sources

1
ITU Numbering Plan Database
Dialing validation reference

Savings

See what you could save

Adjust the tools below to compare Sayfone with typical retail pricing for calls to Thailand. Start with one call, then layer on monthly volume to see the bigger picture.

How to use these tools

Sayfone uses your live rate for calls to Thailand — the same basis as the rest of this page.
First, estimate savings on a single call length. Then, model a full month of minutes versus typical retail benchmarks.
Retail competitor rows are illustrative — not a quote from any carrier.