VerifiedEuropeReviewed 2026-08-08

Czechia

Czechia uses calling code +420, ISO codes CZ and CZE, the .cz ccTLD, and the Czech koruna.

VerifiedReviewed 2026-08-08
Calling code
+420
ISO alpha-2
CZ
ISO alpha-3
CZE
ISO numeric
203
ccTLD
.cz
Currency
CZKCzech koruna (CZK)
Region
Europe
Capital
Prague
Time zones
Europe/Prague
Postal format
5-Digits - NNNNN

Sources and review

ISO 3166 - Country Codes · ITU-T - International Calling Codes · IANA - Root Zone Database · ISO 4217 - Currency Codes

How to call Czechia

From outside Czechia, dial your international access prefix, then +420, then the national number. Drop the leading trunk zero when the destination numbering plan requires it.

+420 [area or mobile code] [local number]

Read the international dialing guide

World references

+420Calling code pageCZKCurrency referenceZIPPostal code formatISOCountry codes lookup

Quick answers for Czechia

What is the country calling code for Czechia?

Czechia uses +420. Dial the international access prefix, then +420, then the local number without the national trunk prefix where required.

What is the ISO country code for Czechia?

The ISO 3166-1 codes are alpha-2 CZ, alpha-3 CZE, and numeric 203.

What currency does Czechia use?

Czechia uses Czech koruna (CZK).

What is the ccTLD for Czechia?

Czechia uses .cz as its country-code top-level domain.