Czechia Phone Number Format
Country code +420 · ISO CZ
How to format, dial, and validate Czechia phone numbers, with live examples.
Country Code
+420
National Prefix
—
International Prefix
00
Mobile Portability
Yes
Try it now
Pre-filled with a valid fixed line number for Czechia. Edit it and click "Try It" to see the parsed result.
Number Types & Example Formats
Each Czechia phone-number type supported by libphonenumber, with a real example formatted three ways.
| Type | Length | National | International | E.164 |
|---|---|---|---|---|
| Fixed Line | 9 digits | 212 345 678 | +420 212 345 678 | +420212345678 |
| Mobile | 9 digits | 601 123 456 | +420 601 123 456 | +420601123456 |
| Personal Number | 9 digits | 700 123 456 | +420 700 123 456 | +420700123456 |
| Premium Rate | 9 digits | 900 123 456 | +420 900 123 456 | +420900123456 |
| Shared Cost | 9 digits | 811 234 567 | +420 811 234 567 | +420811234567 |
| Toll Free | 9 digits | 800 123 456 | +420 800 123 456 | +420800123456 |
| UAN | 9 digits | 972 123 456 | +420 972 123 456 | +420972123456 |
| VoiceMail | 9–12 digits | 93 123 456 789 | +420 93 123 456 789 | +42093123456789 |
| VoIP | 9 digits | 910 123 456 | +420 910 123 456 | +420910123456 |
How to Dial Czechia Numbers
From abroad
Dial +420 followed by the national number.
Dialing out of Czechia
Dial 00 followed by the destination country code and number.
Area Codes
Browse Czechia area codes with cities, timezones, and example numbers for each.
Validate a Czechia Number with the API
Send the number to the free libphonenumber API to get the parsed country, type, formatting, and validity.
curl https://libphonenumberapi.com/api/phone-numbers/+420212345678Frequently Asked Questions
What is the country code for Czechia?
└ The international country code for Czechia is +420. Use this prefix when dialing Czechia numbers from another country.
How long is a Czechia phone number?
└ Czechia phone numbers are typically 9 digits, not including the +420 country code.
How do I dial a Czechia phone number from abroad?
└ From abroad, dial +420 followed by the national number.
How do I validate a Czechia phone number programmatically?
└ Send a GET request to https://libphonenumberapi.com/api/phone-numbers/<number>. The free libphonenumber API returns the parsed country, format, type, and validity for any number — no API key required.