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Czech Republic country code +420 — call Czech Republic & get a number.
Czechia made dialing refreshingly simple — nine digits, no trunk prefix, nothing to add or strip. Here are exact +420 formats from the US, UK, Germany and Poland, the leading-digit "area codes," current O2, T-Mobile and Vodafone prefixes, live time & weather, and how businesses set up a Czech virtual number with MCM.
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Czech Republic at a glance
I numeri e i fatti di cui hai bisogno prima di comporre il numero.
What is the country code for Czech Republic?
Czechia's code is +420, and the country did something most never bothered to: in 2002 it scrapped the trunk prefix entirely. The result is a closed 9-digit plan where you dial all nine digits exactly as written — calling a neighbor across Prague or a number across the country, it makes no difference. From abroad, you simply prepend +420 and dial the full nine, with nothing to remove.
Codice +420 was assigned to Czech Republic by the ITU under the E.164 plan. The “+” significa "comporre il prefisso di uscita internazionale locale"; su un cellulare, tieni premuto 0 per digitarlo.
All four mean the same thing — they connect your call to Czech Republic.
How to call Czech Republic from anywhere
What you see is what you dial. With no trunk prefix anywhere in the system, the 9-digit number on the business card goes straight after +420 — no zero to bolt on, none to peel off.
Full example: +420 2(2) XXX XXXX — drop the local leading 0 when calling from abroad.
Czech Republic phone number format explained
Nine digits, every time. The lead digit hints at what you've got: 2 for Prague landlines, 3 through 5 for other regions, and 6 or 7 for mobiles. Because there's no separate trunk code sitting in front, those nine digits are the whole, self-contained number.
Landline
9 digits, first digit 2–5. Prague starts with 2 (e.g., 2XX XXX XXX). Brno commonly 5, Ostrava 5.
Mobile
9 digits, first digit 6 or 7 (e.g., 601 234 567, 720 123 456). Number portability applies — the prefix shows the original network only.
Czech Republic area codes — major cities
Elimina lo 0 iniziale locale quando chiami dall'estero.
| Città | Regione | Prefisso |
|---|---|---|
| Prague | Praha | 2(2) |
| Brno | South Moravia | 5(5453) |
| Ostrava | Moravian-Silesian | 5955 |
| Pilsen (Plzeň) | Plzeň | 37 |
| Olomouc | Olomouc | 58 |
| Liberec | Liberec | 48 |
| Hradec Králové | Hradec Králové | 49 |
| České Budějovice | South Bohemia | 38 |
| Ústí nad Labem | Ústí | 47 |
| Zlín | Zlín | 57 |
Czech Republic mobile network prefixes
The prefix after +420 tells you which network issued the SIM — though number portability means it no longer guarantees the operator.
O2 Czech Republic (former incumbent)
T-Mobile Czech Republic
Vodafone Czech Republic (formerly Oskar)
Czech Republic time zone
Unlike several countries in this guide, Czechia does move its clocks. It runs on Central European Time (CET, UTC+1) through winter and shifts to Central European Summer Time (CEST, UTC+2) from late March to late October — the standard EU daylight-saving rhythm.
A Prague afternoon (14:00–17:00) catches the US East Coast as its morning begins, while Prague mornings sit comfortably alongside the rest of Europe's working day. Remember the DST switch can nudge these overlaps by an hour.
Apri il pianificatore interattivo dell'orario migliore per chiamareCommon mistakes when calling Czech Republic
Quasi ogni chiamata internazionale fallita è un problema di formattazione, non di rete.
There's no 0 to add or drop
this is the one that trips people raised on trunk prefixes. Czechia has none, so never insert a leading 0 and never strip one; the nine digits stand alone.
Treating Prague's 2 as a separate area code
it isn't dialed apart from the number; it's simply the first of the nine digits.
Dialing fewer than nine digits
every Czech number is exactly nine, no shorter local form.
Reading 6/7 as a permanent carrier badge
portability means the prefix only shows the original network.
Mixing up +420 (Czechia) with +421 (Slovakia)
one digit apart, two different countries.
Tips to reduce the cost of calling Czech Republic
Trade carrier roaming rates for VoIP or a virtual +420 number.
Carry calls over the internet to dodge mobile surcharges.
Hold a local Czech DID so contacts reach you at domestic rates.
Aim calls at the CET/CEST working day to connect first try
and double-check the offset around the DST changeover.
Why businesses get a Czech Republic virtual number
Czechia is a well-wired Central European hub, and a +420 number plants you firmly in-market — credible to customers who screen unfamiliar foreign calls. 6 cards:
Tassi di risposta più elevati
Higher answer rates — Czechs pick up a local number they recognize.
Lower trust friction
Lower trust friction — a Prague line reads as an established presence.
In entrata più economico
Cheaper inbound — customers reach you at domestic rates.
Instradamento centralizzato
Centralized routing — one platform forwards calls wherever your team sits.
Espansione più rapida
Faster expansion — operate in Czechia without opening an office.
Presenza reale della PSTN
Real PSTN presence — genuine, geographic Czech numbering.
Czech Republic numeri virtuali con My Country Mobile
Provision local Czech DIDs — Prague or regional — and route them worldwide on carrier-grade infrastructure that holds up in a demanding, well-connected market. 9 feature bullets:
DID locali nei principali prefissi: forniti in pochi minuti
Inoltro di chiamata a qualsiasi telefono mobile, fisso, endpoint SIP o softphone in tutto il mondo
Voce HD con G.711, G.729, Opus e AMR-WB: negoziazione automatica per chiamata
Latenza inferiore a 150 ms sui principali corridoi vocali tramite PoP distribuiti
SLA con tempi di attività del 99,99% supportato da infrastruttura georidondante e failover inferiore a 2 secondi
Supporto WebRTC per chiamate basate su browser senza installazioni di softphone
API REST per provisioning, instradamento e record di dettagli delle chiamate (CDR)
Protezione antifrode integrata con rilevamento anomalie AI e AGITAZIONE/AGITAZIONE
Monitoraggio della rete 24 ore su 24, 7 giorni su 7 e supporto dedicato
How to get your Czech Republic virtual number
La maggior parte delle aziende è attiva nel giro di poche ore, non di giorni.
Choose a Czech (+420) number — Prague or regional.
Set routing — SIP, mobile or app.
Verify and activate.
Go live and start taking calls.
Guide alle chiamate per altri paesi
Altri codici paese che vale la pena aggiungere ai segnalibri.
Get a Czech Republic virtual number with MCM
Pick up a +420 number — nine digits, nothing to drop — and be live across Czechia in minutes.
Czech Republic +420 — FAQ
Do I dial a 0 before a Czech number locally?expand_more
No — Czechia has no trunk prefix at all, so you dial the full nine digits whether you're across the street or across the country.
So there's really nothing to drop when I call from abroad?expand_more
Correct — just add +420 to the nine digits. There's no leading 0 to remove, unlike most of Czechia's neighbors.
Is Prague's "2" an area code I dial separately?expand_more
No — it's simply the first of the nine digits, never dialed apart from the rest.
How do I spot a Czech mobile?expand_more
It opens with 6 or 7 (601, 720, 730 and so on), while landlines start 2–5.
Does the prefix tell me someone's carrier?expand_more
Not for certain — portability means 6/7 ranges only reflect the original O2, T-Mobile or Vodafone assignment.
Does Czechia change its clocks?expand_more
Yes — it runs CET in winter and CEST in summer, so the offset to you can shift by an hour twice a year.
How do I avoid confusing +420 with +421?expand_more
+420 is Czechia; +421 is Slovakia. They split in 1993 and kept adjacent codes, so the final digit is the whole difference.
Can my business get a Prague or regional number without an office?expand_more
Yes — MCM provisions Czech virtual numbers in Prague and the regions and routes them to your team anywhere.