iRoamly does not provide a Czech Republic eSIM that includes a local phone number or SMS capability. Travelers can only purchase data‑only plans from the provider for the Czech Republic. They can still use popular VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection for calls and messaging, but some destinations may block or restrict access to these services, so travellers should check that the apps they need will work in Czech Republic before buying an eSIM.