+420Czechia
The +420 prefix belongs to Czechia. If you got a call or text from a number starting with +420 (calling code 420), it came from Czechia. You can also call Czechia from your web browser with TwinPhone — no app and no SIM.
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Code
+420
ISO
CZ
Region
Europe
Time zone
Europe/Prague
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Which country is +420?
The +420 code identifies Czechia on the international telephone network. Country code 420 is assigned to Czechia under the ITU-T E.164 numbering plan, so any phone number that begins with +420 — written +420 or 00420 — is a Czechia number. You can call any Czechia number directly from your browser with TwinPhone — no app, no SIM — paying only for the minutes you talk.
Anatomy of a Czechia phone number
Every Czechia 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 Czechia 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 Czechia.
Mobile example
+XXX XXX XXX XXX
Example: +420 601 123 456
Landline example
+420 XX XXXX XXX
Include the area code if applicable. Omit any leading 0.
How to call Czechia (+420) step by step
Enter the country code +420 when dialing Czechia 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 Czechia:
Czechia at a glance
Country codes near +420
Dialing codes immediately above and below +420 in the ITU plan — handy if you mistyped a digit or are dialing across a region.
Frequently asked questions
Everything you need to know about TwinPhone.
The +420 code belongs to Czechia. Any phone number that starts with +420 — or with 00420 — is a Czechia number. To reach one, TwinPhone connects Czechia numbers straight from your browser — no app or SIM needed.
The 00420 prefix is Czechia. The 00 is the international exit code dialed from Europe and many other regions; it is followed by +420, the Czechia country code.
Dialing code 420 (dialed as +420 or 00420) belongs to Czechia. Any phone number that starts with +420 is a Czechia number.
Country code 420 is the ITU-T E.164 calling code for Czechia. To call Czechia from abroad, dial +420 followed by the national number.
The country code (international dialing code) for Czechia is +420. To call Czechia from abroad, dial +420 followed by the national number (in most countries, without its leading zero).
+420 is Czechia'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 Czechia 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).
Czechia's current local time is shown live on this page. Check it before calling so you reach people during waking hours.
Yes — we currently rent virtual numbers in the US and Canada, from $3.19/month. Use one as your caller ID so callers see a North American number, or receive incoming calls directly in your browser. Numbers for more countries are on the way.
Calling Czechia with TwinPhone is pay-as-you-go from your browser, billed by the minute (rounded up to the next full minute, minimum one minute) — no connection fee and no monthly fee. The exact per-minute price for +420 landlines and mobiles is shown live on this page, and that figure is the one you pay.
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 Czechia number, and the call connects.
A +420 number is not automatically a scam — +420 is simply the country code 420 assigned to Czechia under ITU-T E.164, so the call or text came from Czechia. 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 Czechia are shown above.
Cheap calls to Czechia
Per-minute rates to Czechia straight from your browser — no SIM, no app.
Where is this number from?
Paste an international number (with +) and we'll tell you which country it's from, its dialing code, and how to call.
All phone dialing codes
The complete list of country codes and international dialing prefixes.
Need to call Czechia (+420)?
Dial +420 with TwinPhone — no SIM, no app, right from your browser.
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