Every number type in Czechia with real format examples: how numbers are written domestically, how to dial them from abroad, and the E.164 form your systems should store.
Right now in Czechia
--:--
Country code
+420
Trunk prefix
none
Intl. call prefix
00
Mobile digits
9
Number formats by type
Examples from the official numbering plan metadata. The E.164 column is the normalized form for databases and APIs.
Type
Domestic (national)
From abroad
E.164
Digits
Landline
212 345 678
+420 212 345 678
+420212345678
9
Mobile
601 123 456
+420 601 123 456
+420601123456
9
Toll-free
800 123 456
+420 800 123 456
+420800123456
9
Premium rate
900 123 456
+420 900 123 456
+420900123456
9
VoIP
910 123 456
+420 910 123 456
+420910123456
9
Shared cost
811 234 567
+420 811 234 567
+420811234567
9
How to call Czechia
From abroad: dial +420 (or your country's exit code, e.g. 00 from Europe, 011 from North America), then the national number. Example: +420 601 123 456
Within Czechia: dial the number as written domestically. Example: 601 123 456
Calling abroad from Czechia: the international prefix is 00, or simply use + on mobiles.
Storing numbers in software: always store E.164 (+420601123456): unambiguous, sortable, and what SMS and telephony APIs expect.
Exact dial sequence from your country
Pick where you are calling from and get the digit-for-digit sequence for a Czechia number, with your country's exit code instead of the generic +.
Dial exactly
Frequently Asked Questions
What is the phone number format in Czechia?
Numbers in Czechia use country code +420. A mobile number looks like 601 123 456 domestically, or +420 601 123 456 in international format (E.164: +420601123456). Mobile numbers have 9 national digits.
How do I call Czechia from abroad?
Dial your country's international prefix (or +), then 420, then the national number. Example: +420 601 123 456.
What is the country calling code for Czechia?
The country calling code for Czechia is +420. To call abroad from Czechia, the international prefix is 00 (or use +).
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