eSIMatrix does not provide a Czech Republic eSIM that includes a local phone number or SMS capability. The available plans from this provider are data‑only, so travelers will not receive a local number and cannot send or receive SMS messages through the network.VoIP applications such as WhatsApp, Telegram and iMessage can usually be used over the data connection for voice and text communication, but some destinations may block or restrict access to these services, so users should confirm that the apps they rely on are accessible in the Czech Republic before purchasing.