The +66 prefix belongs to Thailand. If you got a call or text from a number starting with +66 (calling code 66), it came from Thailand.
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Code
+66
ISO
TH
Region
Asia
Time zone
Asia/Bangkok
Every Thailand number in international format follows this shape — colour-coded so you can see where the country code ends and the local number begins.
When dialing Thailand from abroad, the only fixed part is +66 — that's the country code. The rest depends on whether you're calling a mobile or landline number inside Thailand.
+XX XX XXX XXXX
Example: +66 81 234 5678
+66 XX XXXX XXX
Include the area code if applicable. Omit any leading 0.
Enter the country code +66 when dialing Thailand from abroad.
Add the local phone number without the leading zero.
Use TwinPhone to connect the call at low per-minute rates.
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Example numbers for Thailand:
Dialing codes immediately above and below +66 in the ITU plan — handy if you mistyped a digit or are dialing across a region.
Everything you need to know about TwinPhone.
The +66 code belongs to Thailand. Any phone number that starts with +66 — or with 0066 — is a Thailand number.
The 0066 prefix is Thailand. The 00 is the international exit code dialed from Europe and many other regions; it is followed by +66, the Thailand country code.
The country code (international dialing code) for Thailand is +66. To call Thailand from abroad, dial +66 followed by the national number without its leading zero.
+66 is Thailand's international country calling code under the ITU E.164 plan — often searched as the "66 area code". Any phone number starting with +66 is a Thailand number.
From TwinPhone, just type +66 and the number — we connect it. From a landline, dial your exit code, then +66, then the number without the leading 0.
Thailand's current local time is shown live on this page. Check it before calling so you reach people during waking hours.
Yes! Virtual numbers in Thailand start at $1.60/month. Use it as your caller ID so people see a local number, or receive incoming calls directly in your browser.
No. TwinPhone works directly in your browser — Chrome, Edge, Safari, or Brave. Open the site, add credit, dial +66 and your number, done. No installs, no plugins, no SIM card required.

Dial +66 with TwinPhone — no SIM, no app, right from your browser.
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