The +856 prefix belongs to Laos. If you got a call or text from a number starting with +856 (calling code 856), it came from Laos.
Call from your browser — from $0.14/min, no app, no SIM.
Code
+856
ISO
LA
Region
Asia
Time zone
Asia/Vientiane
The +856 code identifies Laos on the international telephone network. Country code 856 is assigned to Laos under the ITU-T E.164 numbering plan, so any phone number that begins with +856 — written +856 or 00856 — is a Laos number.
Every Laos 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 Laos from abroad, the only fixed part is +856 — that's the country code. The rest depends on whether you're calling a mobile or landline number inside Laos.
+XXX XX XX XXX XXX
Example: +856 20 23 123 456
+856 XX XXXX XXX
Include the area code if applicable. Omit any leading 0.
Enter the country code +856 when dialing Laos from abroad.
Add the local phone number (in most countries, drop the leading zero).
Use TwinPhone to connect the call at low per-minute rates.
Enter a phone number and start instantly
Example numbers for Laos:
Dialing codes immediately above and below +856 in the ITU plan — handy if you mistyped a digit or are dialing across a region.
Everything you need to know about TwinPhone.
The +856 code belongs to Laos. Any phone number that starts with +856 — or with 00856 — is a Laos number.
The 00856 prefix is Laos. The 00 is the international exit code dialed from Europe and many other regions; it is followed by +856, the Laos country code.
Dialing code 856 (dialed as +856 or 00856) belongs to Laos. Any phone number that starts with +856 is a Laos number.
Country code 856 is the ITU-T E.164 calling code for Laos. To call Laos from abroad, dial +856 followed by the national number.
The country code (international dialing code) for Laos is +856. To call Laos from abroad, dial +856 followed by the national number (in most countries, without its leading zero).
+856 is Laos's international country calling code under the ITU E.164 plan — often searched as the "856 area code". Any phone number starting with +856 is a Laos number.
From TwinPhone, just type +856 and the number — we connect it. From a landline, dial your exit code, then +856, then the number (in most countries, without the leading 0).
Laos'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 Laos 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.
Calling Laos with TwinPhone starts from $0.02/min, billed by the minute (rounded up to the next full minute). It is pay-as-you-go from your browser — no connection fee and no monthly fee. The exact per-minute price for +856 landlines and mobiles is shown live on this page.
Yes. TwinPhone works entirely in your web browser — Chrome, Edge, Safari, or Brave on desktop or mobile. There is no app to install and no SIM card: open the site, add credit, dial +856 and the Laos number, and the call connects.
A +856 number is not automatically a scam — +856 is simply the country code 856 assigned to Laos under ITU-T E.164, so the call or text came from Laos. If you do not know anyone there, treat an unexpected +856 call with the same caution as any unknown number: do not call back blindly and do not share personal details. Costs to call Laos are shown above.

Dial +856 with TwinPhone — no SIM, no app, right from your browser.
Free to sign up — no card, no subscription14-day money-back guarantee