With an O2 Czech Republic prepaid SIM card you can make calls and get connected to the internet within the entire European Union.
O2 prepaid card
The easiest way to a Czech Republic prepaid SIM card. Get a Czech phone number and share your experiences from travelling.
You can use it in all the EU countries
Thousands of selling places
You can buy your card directly at the airport, at railway stations, in O2 Shops, and at many other places.
No commitment
When you buy your Czech Republic prepaid SIM card you do not need to show an ID.
Choose from two options
New
GO 20 GB
20 GB of data
Calls for 4.90 CZK/min.
Text messages for 1.90 CZK
- It works in the entire EU
- With an initial credit of 50 CZK
- Standard/micro/nano SIM card
Price / credit
1,499 CZK
GO 5 GB
5 GB of data
Calls for 4.90 CZK/min.
Text messages for 1.90 CZK
- It works in the entire EU
- With an initial credit of 50 CZK
- Standard/micro/nano SIM card
Price / credit
449 CZK
Where to buy an O2 Czech Republic prepaid SIM card
O2 Shops
We have a wide network of O2 Shops around the entire Czech Republic. Our map will simply show you, which shop is the nearest to you. We will gladly assist you with e.g. setting up of automatic topping up.
Airport and railway stations
Selling places can be found at the Václav Havel Airport in Prague and at most Czech railway stations.
Post offices and information centres
You can stop by at one from a large number of Czech Post branches or at an information centre.
Supermarkets and shops
You can find our SIM cards at the cashiers’ in supermarkets and in smaller shops.
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Remaining credit
Dial the *104# code on your phone and confirm it as an outgoing call.
Additional data
Once you use up your basic data package, we will automatically top up your data for you. More information
The O2 prepaid SIM card can be used in the entire European Union
You can use the O2 prepaid card not only in the Czech Republic but in the entire European Union as well. Your data package will be available just as if you were in the Czech Republic. And in the EU zone you make calls to Czech numbers and send text messages for the same prices as you do to other networks in the Czech Republic.
How much will it cost you to call your family at home?
Czech numbers start with the code +420. Numbers with any other code are international numbers. Countries are divided into zones, prices for international calls vary based on the zone you call.
Create a Wi‑Fi network with a portable router
You can place your O2 Czech Republic prepaid SIM card to a Wi‑Fi router and create your own Wi‑Fi network no matter where you are. Therefore, you do not have to risk getting connected to public networks, which do not have to be secure. The device is portable and the battery lasts up to 8 hours.
Detail information
How does using and topping up of data work?
To make sure that you do not lose your internet connection when you use up your data package, we will automatically top up your data.
You do not have to worry, we will carry out this topping up three times at the most. If you use up your data for the fourth time, we will first ask you if you wish to buy another data package or if you wish to wait for automatic topping up after 30 days.
Prices of data packages
| Data package |
Standard price |
Renewal after 30 days | Additional topping up within 30 days |
| 5 GB | CZK 549 | CZK 549 | CZK 249 |
| 20 GB | CZK 1,499 | CZK 1,499 | x |
Regular data packages are valid for 30 days from activation. Unused data is not transferred to the next billing period.
What is O2 coverage in the Czech Republic?
We have 99% coverage with LTE internet and signal for calls in the Czech Republic. We are building additional transmitters and we are constantly improving our coverage.
Check out our coverage map.
What is the mobile internet speed in the Czech Republic?
The average speed of 4G LTE internet is around 25 Mb/s. In case of the more advanced 4G LTE+ it is 100-300 Mb/s depending on the type of a phone and available frequencies.
For how long will the Czech Republic prepaid SIM card work?
The prepaid SIM card works for 6 months from its activation.
If you top up your credit, you prolong the card validity for 12 months from the last topping up. We will inform you about the nearing end of your card validity and about the need to top up your credit via a text message.
What is the validity of the credit?
The length of your credit validity depends on how much you top up your card. If you top up your credit with different amounts, the validity of the entire topped up credit is decided by the topping up with the longest validity. If the validity of the credit runs out, it expires without the right to claim any compensations.
| Topped up amount | Credit validity period |
| CZK 0 – 499 | 6 months |
| CZK 500 and more | 12 months |
Detailed prices of international calls
| Zone | CZK per minute |
| European Union | 5.89 |
| Other countries | 24.90 |
| Satellite networks | 199 |
Check out our detailed division of countries into zones.