Network & carriers
Thailand's telecom market is regulated by the NBTC, with AIS, True Corporation, and dtac as the major carriers.
+66 · TH · UTC+7
Thailand
Country Code & Virtual Numbers
Thailand's +66 code serves one of Southeast Asia's largest mobile markets, led by AIS, True, and dtac. Capital: Bangkok · Business hours: 9:00 PM–5:00 AM EST.
// The Basics
What is the +66 country code?
Numbering format
Thai mobile numbers drop the leading 0 internationally — a domestic 08 number becomes +66 8 when dialed from abroad.
Calling culture
Thai business culture values politeness, patience, and maintaining harmony — direct confrontation or urgency is generally avoided in favor of a measured tone.
Did you know
Bangkok's telephone numbering has been consolidated multiple times as the metro area's population grew into one of the largest in Southeast Asia.
// Quick Facts
A quick read on Thailand numbers.
Thai mobile numbers drop their leading 0 internationally — a domestic 08 number becomes +66 8 when dialed from abroad.
Best time to call Thailand from the US
Thailand is on UTC+7 · Business hours = – EST · Mon–Fri
// Why a Virtual Number
Why get a Thailand virtual number?
A +66 virtual number gives your business instant local presence in Thailand — without the overhead.
Local caller ID in Thailand
When you call from your virtual Thailand number, contacts see a local +66 number — dramatically improving answer rates.
No office needed
Establish a local presence in Thailand without renting space, hiring locally, or installing any hardware.
Instant credibility
Thai consumers respond well to a recognizable local number, especially given the market's general preference for measured, trust-based communication.
Routes to any device
Calls to your Thailand number ring your team on mobile, desktop, or desk phone — wherever they work.
Free tools
Look up a number from Thailand
Phone number checkerCheck the country and format of a number from Thailand instantly.Phone number validatorValidate a number against its country's formatting rules (E.164).Carrier lookupCheck a number's country and format for free; live carrier data comes with the Lookup API.All country codesDialing codes, time zones and calling guides for every country.
Frequently Asked
Thailand questions answered.
Answers about Thailand's NBTC-regulated carriers, harmony-focused calling culture, and getting a local +66 virtual number.
Dial 011 (the US exit code), then 66, then the national number, leaving out any domestic trunk prefix (such as a leading 0).
Start calling Thailand, not tomorrow.
Get a virtual Thailand number or make direct international calls to +66 — active in under ten minutes.