Area Code 48 – Liberec Region
The phone area code for Liberec Region is 48 (international format +42048). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 48
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Liberec Region
Geographic Overview
The +420 48 area code is a geographic National Destination Code (NDC) assigned to the Liberec Region in the northern Czech Republic. This administrative region borders Poland and Germany and is known for its industrial heritage, glass-making tradition, and the Jizera and Giant Mountains. The code covers the city of Liberec, the regional capital, as well as nearby towns such as Jablonec nad Nisou, Česká Lípa, Semily, and Turnov. The area is served by a mix of fixed-line PSTN and VoIP services, with numbers typically used for residential, business, and public administration lines.
Dialing Formats
For callers within the Czech Republic, the national trunk prefix '0' is not used; instead, callers dial the full nine-digit national significant number, which includes the area code. For example, a local number in Liberec might be dialed as 48 123 4567. When calling from abroad, the international format is +420 48 123 4567 (or 00420 48 123 4567 from countries using the international prefix 00). The country code +420 is mandatory for all international calls to the Czech Republic.
Numbering and Overlay
Czech telephone numbers are fixed at nine digits, including the area code. The 48 area code is not overlaid with another code; it remains the sole geographic code for the Liberec Region. However, number portability allows subscribers to retain their numbers when changing operators, even if the service is migrated from PSTN to VoIP. This means that a number with the 48 prefix might not always be physically located in the region, but it is still associated with the Liberec area for routing purposes.
Caller Instructions
For local callers within the 48 area code, dialing the subscriber number alone (without the area code) is not possible in the Czech Republic; the full nine-digit number must always be dialed. For callers from other Czech regions, simply dial the nine-digit number starting with 48. For international callers, always use the plus sign (+) followed by the country code and the full number, omitting any leading zero. It is important to note that the Czech Republic uses closed dialing plan, so no trunk prefix is used.
Regulatory and Technical Notes
The Czech Telecommunication Office (ČTÚ) oversees the allocation of geographic numbers. The 48 code is part of the national numbering plan compliant with ITU-T E.164. Calls to geographic numbers are typically charged at standard local or national rates, depending on the caller's location and tariff. VoIP providers may offer lower rates for international calls to this code. Emergency services (112) are reachable free of charge from any phone, including those with the 48 prefix.