The +420 prefix belongs to Czech Republic. If you got a call or text from a number starting with +420 (calling code 420), it came from Czech Republic.
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Code
+420
ISO
CZ
Region
Europe
Time zone
Europe/Prague
The +420 code identifies Czech Republic on the international telephone network. Country code 420 is assigned to Czech Republic under the ITU-T E.164 numbering plan, so any phone number that begins with +420 — written +420 or 00420 — is a Czech Republic number.
Every Czech Republic 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 Czech Republic from abroad, the only fixed part is +420 — that's the country code. The rest depends on whether you're calling a mobile or landline number inside Czech Republic.
+XXX XXX XXX XXX
Example: +420 601 123 456
+420 XX XXXX XXX
Include the area code if applicable. Omit any leading 0.
Enter the country code +420 when dialing Czech Republic 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.
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Example numbers for Czech Republic:
Dialing codes immediately above and below +420 in the ITU plan — handy if you mistyped a digit or are dialing across a region.
Everything you need to know about TwinPhone.
The +420 code belongs to Czech Republic. Any phone number that starts with +420 — or with 00420 — is a Czech Republic number.
The 00420 prefix is Czech Republic. The 00 is the international exit code dialed from Europe and many other regions; it is followed by +420, the Czech Republic country code.
Dialing code 420 (dialed as +420 or 00420) belongs to Czech Republic. Any phone number that starts with +420 is a Czech Republic number.
Country code 420 is the ITU-T E.164 calling code for Czech Republic. To call Czech Republic from abroad, dial +420 followed by the national number.
The country code (international dialing code) for Czech Republic is +420. To call Czech Republic from abroad, dial +420 followed by the national number (in most countries, without its leading zero).
+420 is Czech Republic's international country calling code under the ITU E.164 plan — often searched as the "420 area code". Any phone number starting with +420 is a Czech Republic number.
From TwinPhone, just type +420 and the number — we connect it. From a landline, dial your exit code, then +420, then the number (in most countries, without the leading 0).
Czech Republic'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 Czech Republic 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 Czech Republic 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 +420 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 +420 and the Czech Republic number, and the call connects.
A +420 number is not automatically a scam — +420 is simply the country code 420 assigned to Czech Republic under ITU-T E.164, so the call or text came from Czech Republic. If you do not know anyone there, treat an unexpected +420 call with the same caution as any unknown number: do not call back blindly and do not share personal details. Costs to call Czech Republic are shown above.
Dial +420 with TwinPhone — no SIM, no app, right from your browser.
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