Messaging Apps in Czech Republic

WhatsApp is a useful optional contact channel for some accommodations, tour operators, guides and private contacts, but ordinary phone calls, SMS and email remain common in Czechia. Use the contact method shown on the official website or confirmed booking. A familiar logo, Czech number or correct reservation detail does not prove that an unexpected sender is legitimate. If a message requests a new deposit, card details, passport upload, verification code or a transfer outside the booking platform, contact the business independently through the original channel before responding. Do not move a platform dispute into private chat at the request of a stranger. Add Czech numbers with country code +420. There is no domestic trunk zero to remove from the ordinary nine-digit national number. Send the date, time, party size and booking name clearly, then wait for an explicit confirmation. A message marked delivered is not a reservation. Keep the accommodation address, late-arrival number and transport contacts offline in case mobile data or the app fails. In an emergency, do not message a business or rely on WhatsApp: call 112, 155 for medical rescue, 158 for police or 150 for fire services. Never send a one-time login or payment code in chat.