What is the dialing code to call Thailand from Laos?

Dial 00 (or +) followed by 66, then the Thai phone number without the leading 0. For example, to call a Thai mobile number 081-234-5678, dial 00 66 81 234 5678.

Is there a time difference between Laos and Thailand?

No. Both Laos and Thailand are in Indochina Time (ICT), which is UTC+7. There is no time difference, and neither country observes daylight saving time.

How much does it cost to call Thailand from Laos with Sayfone?

Sayfone offers calls to Thailand at $0.18 per minute. You can call directly from your browser without needing to install an app or buy a special SIM card.

What do Thai mobile numbers look like?

Thai mobile numbers are 10 digits in domestic format, starting with 06, 08, or 09 (e.g., 081-234-5678). When calling from Laos, drop the leading 0 and dial 00 66 81 234 5678.

Can I call Thai toll-free numbers from Laos?

Generally, no. Thai toll-free numbers (1800 or 1600 prefixes) are typically only reachable from within Thailand. Ask your contact for a regular landline or mobile number instead.

Do I need to install an app to use Sayfone?

No. Sayfone works directly in your web browser. Just visit the site, enter the Thai number you want to call, and connect — no app installation required.

What is the best time to call family members working in Thailand?

Since both countries share the same time zone, evenings between 6:00 PM and 9:00 PM are typically the most convenient — most workers are off shift and available for personal calls.

Why does my call to Thailand say the number is invalid?

You may have included the leading 0 from the Thai domestic number. When dialing internationally, always drop the 0. For example, dial 00 66 81 XXX XXXX, not 00 66 081 XXX XXXX.

Quick Answer

How to Call Thailand from Laos

To call Thailand from Laos, dial 00 + 66 + the Thai number (drop the leading 0). For mobile numbers, this looks like 00 66 8X XXX XXXX. There is no time difference between the two countries.

Call Thailand Now

Cost tools

🇱🇦From Laos

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

Whether you're checking in with family working in Bangkok, coordinating remittances, or calling a Thai supplier, the dialing process from Laos is straightforward. Both countries use Indochina Time, making it easy to reach someone during normal hours.

Steps at a glance

Dial 00 — the international exit code for Laos
Dial 66 — Thailand's country code
Dial the Thai number without the leading 0
Press call — or use Sayfone in your browser at $0.18/min

Sources

1
Telephone numbers in Thailand – Wikipedia
Country code and dialing format reference
2
HowToPhoneTo – Laos dialing guide
Laos exit code reference

DIALING GUIDE

Step-by-Step: Calling Thailand from Laos

Follow these steps to correctly dial any Thai mobile or landline number from Laos. The key is using the right exit code and dropping the leading zero from the Thai number.

1
Dial 00 — Laos exit code
Start by dialing 00, which is the international access code used in Laos. This tells your phone network you are making an international call. On a mobile phone, you can also press and hold the 0 key to get the + symbol, which works as a universal substitute.
```
00 ...
```
2
Dial 66 — Thailand's country code
After the exit code, dial 66 — the international country code for Thailand. This routes your call to the Thai telephone network.
```
00 66 ...
```
3
Dial the Thai number without the leading 0
Thai numbers start with a 0 when dialed domestically (e.g., 081-XXX-XXXX for mobile or 02-XXX-XXXX for Bangkok landlines). When calling internationally, drop that leading 0 and dial the remaining digits.
```
00 66 81 XXX XXXX (mobile) or 00 66 2 XXX XXXX (Bangkok landline)
```
4
Press call
Your complete dial string should be 00 66 followed by 8 or 9 digits (depending on whether you're calling a mobile or landline). Press call and wait for the connection. If you're using Sayfone in your browser, simply enter the Thai number and Sayfone handles the formatting for you — at $0.18/min.
```
00 66 81 234 5678 (example Thai mobile)
```

Dialing format reference

+66

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

Mobile

+66 XX XXX XXXX (10 digits national, 9 digits after country code)

Landline

+66 2 XXX XXXX (Bangkok) or +66 XX XXX XXX (other provinces)

00 66 81 234 5678 (mobile)
00 66 2 234 5678 (Bangkok landline)
00 66 53 XXX XXX (Chiang Mai landline)

Major city area codes

Bangkok2

Chiang Mai53

Phuket76

Chon Buri / Pattaya38

Nakhon Ratchasima (Korat)44

Khon Kaen43

Sources

1
Telephone numbers in Thailand – Wikipedia
Thai numbering plan, area codes, and mobile format reference
2
HowToPhoneTo – Laos exit code and dialing procedures
Laos international dialing prefix (00)
3
ITU E.164 – Thailand numbering plan via NBTC
Authoritative ITU source for Thai numbering

IMPORTANT RULES

Dialing Rules for Laos to Thailand Calls

Keep these rules in mind to avoid misdialed calls or failed connections when calling Thailand from Laos.

Always drop the leading 0

Thai phone numbers begin with 0 for domestic use (e.g., 081 for mobile, 02 for Bangkok). When dialing from Laos, replace that 0 with the exit code + country code sequence: 00 66. Never dial 00 66 081 — it should be 00 66 81.

Thai mobile numbers are 10 digits domestically

A Thai mobile number like 081-234-5678 is 10 digits including the leading 0. After dropping the 0, you'll dial 9 digits after +66. Mobile prefixes include 06, 08, and 09.

Thai landlines vary by region

Bangkok landlines use a 1-digit area code (2) with 7-digit subscriber numbers. Other provinces use 2-digit area codes (e.g., 53 for Chiang Mai, 76 for Phuket) with 6-digit subscriber numbers. The total is always 9 digits in national format (including the trunk prefix 0).

Use 00 or + from Laos

The international exit code from Laos is 00. On mobile phones, you can substitute + for 00. Both methods are equivalent and will route your call internationally.

Thailand uses a closed dialing plan

Within Thailand, callers must always include the area code — even for local calls. This means the number your contact gives you will already include the area code prefix (e.g., 02 for Bangkok). Just remember to drop the leading 0 when dialing from Laos.

TIMING & TIPS

Best Times and Tips for Calling Thailand from Laos

Laos and Thailand share the same time zone (Indochina Time, UTC+7), which means there's no time difference to worry about. Here are practical tips for making the most of your calls.

🇹🇭

Since many callers from Laos are reaching migrant workers in Thailand, timing your calls around work schedules and shift changes can make a big difference in reachability.

Time & windows

Morning Call

7:00 – 9:00 AM

Good time to reach workers before their shift begins

Midday Break

12:00 – 1:00 PM

Lunch break — a common window for personal calls

Evening Call

6:00 – 9:00 PM

After work hours — the most popular time for family calls

🇱🇦Same time zone

UTC+7 (both countries)No time conversion needed — your local time is the same as Thailand's.

🇱🇦Thai business hours

8:30 AM – 5:30 PM (Mon–Fri)Best for reaching offices, suppliers, or government agencies.

🇱🇦Avoid late night

After 10:00 PMMigrant workers on early shifts may already be asleep.

Calling tips

Laos and Thailand are in the same time zone (ICT, UTC+7) — no math needed for scheduling calls.
For migrant workers in factories or construction, evenings (6–9 PM) are typically the best time to call.
Use Sayfone from your browser for $0.18/min — no app download or SIM card required.
Save Thai numbers in your phone with +66 format (e.g., +66 81 XXX XXXX) so the number works from any location.
If your contact's phone is off, try calling again during a different break window rather than late at night.

Business etiquette

Thai business culture values politeness — begin calls with a greeting and state your purpose clearly.
When calling Thai companies, expect to navigate a receptionist or IVR before reaching your contact.
If calling a Thai government office, try between 8:30 AM and 4:30 PM on weekdays for the best chance of reaching someone.
For trade-related calls (Laos imports 47% from Thailand), confirm pricing and logistics details in writing after the call.

Sources

1
Time in Thailand – Wikipedia
Confirms Thailand uses ICT (UTC+7)
2
Time in Laos – Wikipedia
Confirms Laos uses ICT (UTC+7)

TROUBLESHOOTING

Common Issues When Calling Thailand from Laos

If your call to Thailand isn't connecting, check these common causes and solutions.

Call won't connect at all

Make sure you're dialing the full international sequence: 00 66 followed by the Thai number without the leading 0. A common mistake is dialing 00 66 0XX instead of 00 66 XX.

You hear a "number not in service" message

Double-check that you have the correct number of digits. Thai mobile numbers should be 9 digits after the country code (e.g., 00 66 + 9 digits). Thai landlines outside Bangkok should be 8 digits after +66.

Call drops or has poor quality

International call quality can vary depending on your carrier's routing. If you experience drops or static, try calling via Sayfone in your browser over a Wi-Fi or data connection for more reliable audio quality.

High charges on your phone bill

International calls from Lao mobile carriers can be expensive. Compare your carrier's per-minute rate to Thailand with Sayfone's rate of $0.18/min. Calling through your browser can significantly reduce costs, especially for regular calls to family or business contacts.

Can't reach a Thai toll-free number

Thai toll-free numbers (starting with 1800 or 1600) generally do not work when dialed from outside Thailand. Ask your contact for an alternative local or mobile number instead.

Sources

1
Wise – How to call Thailand
Common reasons international calls fail

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.