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i bought an esim from SMARTLINE INC. using a card that i only used there, and after that i received attempts of fraud transactions.
Czech Republic offers more than 120 travel eSIM providers and over 7, 200 prepaid data plans, providing visitors with a wide variety of options to choose from.
Unlimited data eSIM options are available for travel in the Czech Republic. Providers that offer such plans include Firsty, Yoho Mobile, abesteSIM, Roamify, MicroEsim, Billion Connect, Truely, Yesim, and FairPlay. All of these plans come with no data cap, but many impose speed limits or potential throttling; for example, Firsty restricts speed to 256 kbps and shows ads, while the other providers typically limit speed to around 5 Mbps and may throttle usage after a certain amount of data is used. Prices for unlimited plans range from a free offer with ads to about $29.54 for the longest validity periods, giving travelers a broad spectrum of options to choose from based on budget and desired duration.
In the Czech Republic, the primary Mobile Network Operators (MNOs) are:
O2 Czech Republic: A major integrated operator providing extensive mobile and fixed-line services, including 2G, 3G, 4G, and 5G networks.
T-Mobile Czech Republic: A subsidiary of Deutsche Telekom, offering comprehensive mobile services with widespread coverage across the country.
Vodafone Czech Republic: Part of the Vodafone Group, delivering a range of mobile services with a significant customer base and network reach.
In addition to these MNOs, the Czech Republic hosts several Mobile Virtual Network Operators (MVNOs) that provide mobile services by leasing access from the major carriers. Notable local MVNOs include SAZKAmobil and Lama mobile, both of which utilize Vodafone's network infrastructure. It's important to note that most travel eSIMs rely on MNO infrastructure rather than MVNOs.
Travel eSIM plans that include a phone number and SMS for use within the Czech Republic are available from Airalo and SimOptions. Airalo’s O2‑10 GB eSIM (30 days, $16.00 USD) and SimOptions’ Go Card eSIMs (10 GB and 20 GB, 30 days, $21.90–$29.90 USD) each provide a local Czech number with dialing code +420 and support inbound and outbound voice calls as well as inbound and outbound SMS.
Other providers such as GlobaleSIM and Roamify also offer travel eSIMs with telephony and SMS for Czech travelers, but their assigned numbers use foreign dialing codes (+1 for US or +33 for France). These plans allow calls and texts to be sent from abroad, but the phone numbers are not local Czech numbers. Prices for the global or foreign‑number plans vary from about $4.00 to over $120.00 USD depending on data volume and validity.
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