🇹🇭USA to Thailand Calling Guide

How to Call
Thailand from USA
(+66)

Make seamless calls to thailand from usa directly from your browser. Outbound calls don’t require a dedicated number. To receive inbound calls, secure a unique US/Canada digital number ($2.14–$5/month).

Product facts

  • Outbound: No dedicated number required.
  • Inbound: Requires US/Canada digital number ($2.14–$5/month).
  • No apps: Works in Chrome, Safari, Edge, Firefox.
Dialing Steps
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🇹🇭

How to Call Thailand from USA

Follow this simple 3-step process to connect to any number in Thailand from the United States.

1

USA Exit Code

Dial 011 first. This tells your US carrier you are making an international call.
(On mobile/VoIP, just use +)

2

Thailand Code (+66)

Dial 66. This routes your call to the Thai telephone network.

3

Area Code & Number

Dial the city code or mobile prefix.Important: Drop the leading zero!

The "Drop the Zero" Rule

Thai phone numbers (both landline and mobile) start with a '0' when dialing locally (e.g., 02 for Bangkok). When calling from the USA, you must remove this zero.

Landline (Bangkok)
011 66 02 123 4567
Mobile (AIS/True)
011 66 081 234 5678

Thailand City Codes

Common area codes for major Thai cities. Remember to drop the '0' when calling from the USA.

CityRegionArea Code
BangkokCentral02
Chiang MaiNorth053
PhuketSouth076
Pattaya (Chonburi)East038
Khon KaenNortheast043
CityRegionArea Code
Hat Yai (Songkhla)South074
Nakhon RatchasimaNortheast044
Hua HinCentral032
Surat Thani (Samui)South077
Udon ThaniNortheast042
Mobile Networks

Thai Mobile Prefixes

Most Thai mobile numbers start with 08, 09, or 06. Dial +66 followed by these numbers (dropping the first 0).

08x
AIS / TrueMove / DTAC
09x
AIS / TrueMove / DTAC
06x
Newer Assignments

Cheap Calls to Thailand
From Your Browser

Calling Thailand from the USA via AT&T, Verizon, or T-Mobile can cost upwards of $3.00/minute. StartACall uses VoIP technology to route your call over the internet, saving you up to 90%.

  • Rates starting at pennies per minute
  • No international plan required
  • Works on any device (Mobile/Desktop)
  • Instant connection to AIS, TrueMove & DTAC

Save Money

Avoid massive international roaming bills from US carriers.

24/7 Access

Call anytime. Thailand is usually 11-14 hours ahead of the USA.

Secure

Bank-level encryption keeps your conversations private.

No Apps

Just open your browser and dial. No downloads needed.

Frequently Asked Questions

What is the country code for Thailand?

The country calling code for Thailand is +66. You must dial this after the US exit code (011) and before the area code.

How do I call a Thai mobile number from the USA?

Dial 011 + 66 + the mobile number without the leading zero. For example, if the number is 081-234-5678, you dial 011-66-81-234-5678.

What is the time difference between USA and Thailand?

Thailand is typically 11 to 15 hours ahead of the USA, depending on your time zone (EST/PST) and Daylight Savings Time. It's best to call early morning or late evening US time.

Can I call Thailand for free?

StartACall offers a free trial for new users to test the line quality. After that, our pay-as-you-go rates are significantly cheaper than traditional carriers.

Ready to call Thailand?

Start making calls in seconds. No credit card required to sign up.

Country deep dive

From United States to Thailand

Practical reference covering the destination country's dial code, time zone, mobile carriers, city area codes, business etiquette, and any regulatory rules that affect inbound calls. The information below is specific to this route — different country pairs surface different operational details.

Calling Thailand (+66)

Thailand sits in ICT (UTC+7) — no daylight saving.. The country dial code is +66 and the official language for business is Thai. Local business hours run roughly 8:30–17:30 with a 1-hour lunch..

Major cities & area codes

  • Phuket · 76
  • Bangkok · 2
  • Chiang Mai · 53

Mobile carriers in Thailand

  • Dtac · mobile 8x, 9x
  • AIS (Advanced Info Service) · mobile 8x, 9x
  • True Move · mobile 8x, 9x

What to know when calling Thailand

  • Thai phone numbers are 9 digits after +66; drop the leading 0.

Calling from United States

From United States (Five time zones from Eastern (UTC−5) to Hawaii–Aleutian (UTC−10); most business activity sits in Eastern and Pacific.) the local business window is Standard hours 9:00–17:00 in each local time zone. Federal offices skew earlier; West-Coast tech routinely runs to 19:00. Banks close 17:00 sharp.. Most outbound callers reach a live answer most easily mid-morning local time, before lunch, and again in the late afternoon.

  • Voicemail is widely used and read by transcription; leaving a brief callback request often gets faster response than re-dialing.
  • Cold-call regulations vary by state — California, Florida and New York have stricter pre-recorded-message rules under their consumer protection acts.
Operational facts above are sourced from regulator publications and carrier disclosures; specific rates and routing are confirmed in the live dialer.
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