Czech Republic phone number format and +420 country code
Use the 420 country code, written as +420, when calling Czech Republic from another country. This may also be called the country calling code, dial code, phone prefix, or international prefix. Check the number format, confirm whether the destination is mobile or landline, then review the Voipfibre rate before placing the call.
Use Voipfibre after checking the number format
+420 + 9-digit national number
How to dial Czech Republic
Start with +420, add the correct area or mobile prefix, then enter the local number. Use the format shared by the person or business you are calling when available.
Country code
+420
Use the 420 country code before the Czech Republic number when calling internationally.
Number format
9-digit national number
Czech Republic uses a closed 9-digit numbering plan, so there is normally no domestic trunk zero to remove. Write the number as +420 followed by the full 9-digit Czech number.
Before calling
Check Czech Republic mobile and landline rates before calling because destination pricing can vary by number type.
Check Czech Republic ratesFormat the number before checking the rate
These steps work whether you are calling from Germany, Austria, United Kingdom, India or another country.
- 1
Start with +420
Czech Republic uses the 420 country code, written as +420 in plus format. Put it at the beginning of the number when calling internationally.
- 2
Add the area or mobile prefix
Czech Republic uses a closed 9-digit numbering plan, so there is normally no domestic trunk zero to remove. Write the number as +420 followed by the full 9-digit Czech number.
- 3
Complete the local number
Use the remaining local digits in this pattern: 9-digit national number.
- 4
Check the rate before calling
Check Czech Republic mobile and landline rates before calling because destination pricing can vary by number type.
Mobile and landline examples
Examples are for formatting guidance only. Always confirm the exact number with the person or business you are calling.
Mobile example
+420 602 123 456
Useful when you are calling a Czech Republic mobile number.
Landline example
+420 222 123 456
Useful when you are calling a Czech Republic landline or area-based number.
What to check before using the 420 country code
Country codes are only one part of an international phone number. Exit codes, area codes, mobile prefixes, and local numbering rules can change how the final number should be dialed.
Exit code or plus format
On a mobile phone, the plus sign usually replaces exit codes such as 00 or 011. From a landline, use the international access code for the country you are calling from, then 420.
Country calling code, dial code, or prefix
People may call 420 the Czech Republic country code, country calling code, phone code, dial code, or international prefix. In each case, use +420 before the rest of the Czech Republic number.
Mobile phone or landline
After +420, the next digits may be an area code, mobile prefix, service prefix, or local number. Check whether you are calling a mobile phone or landline because rates can differ.
Czech Republic country code +420
Czech Republic country code, Czech Republic phone code, Czech Republic calling code, Czech Republic dialing code, Czechia country code, 420 country code, and 00420 country code searches usually refer to the +420 international calling code.
Czech Republic phone number format
Czech Republic phone searches usually need +420 followed by the full 9-digit national number. Do not add a separate domestic trunk zero before the Czech number.
Prague and regional prefixes
Prague fixed-line numbers commonly start with 2 after +420. Other Czech geographic prefixes are part of the 9-digit national number, so keep the full number supplied by the contact.
Czech mobile numbers
Czech mobile numbers are also 9 digits after +420 and can start with prefixes such as 60x, 70x, 72x, 73x, 77x, or 790. Number portability means the prefix may not reliably identify the current operator.
421 and 43 country code searches
421 country code refers to Slovakia and 43 country code refers to Austria. Use +420 for Czech Republic or Czechia phone numbers.
Common ways people call Czech Republic
Use the country code first, confirm the number type, then check the Voipfibre rate before placing the call.
What country code does Czech Republic use?
Czech Republic uses country code +420. Write Czech numbers as +420 followed by the full 9-digit national number.
Check Czech Republic ratesWhat is the Czech Republic phone number format?
Use +420 plus the 9-digit Czech number. Czech Republic does not normally use a separate domestic trunk zero in the international format.
Open Czech Republic guideCan I get a Czech Republic phone number?
If Czech Republic phone means a virtual phone-number route, use the Voipfibre Czech Republic virtual-number page. If it means calling Czech Republic, use +420 and check the mobile or landline rate first.
See Czech Republic numbersIs 421 the Czech Republic country code?
No. 421 is Slovakia. Czech Republic and Czechia use +420 for standard international phone numbers.
Open Czech Republic guideAfter checking the country code
Continue with rates, app calling, and related dialing guides.
Popular guides for calling Czech Republic
Use the +420 format first, then compare free app calling and regular phone-number calling options from common origin countries.