Area Code 58 – Olomouc Region
The phone area code for Olomouc Region is 58 (international format +42058). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 58
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Olomouc Region
Geographic Coverage and Administration
The +420 58 area code is a geographic National Destination Code (NDC) assigned to the Olomouc Region of the Czech Republic. This administrative region, located in the northeastern part of the country, encompasses the historic capital city of Olomouc and its surrounding districts. The code serves both the urban center and the broader regional area, including towns such as Prostějov, Přerov, and Šumperk, which are part of the Olomouc administrative jurisdiction. As with all Czech geographic codes, the 58 prefix is used exclusively for fixed-line PSTN and VoIP services that are registered to a physical address within the region.
Dialing Formats and Instructions
Within the Czech Republic, calls to numbers in the 58 area code are dialed using the national format: +420 58 XXX XXXX (or 00420 58 XXX XXXX from abroad). Internationally, the country code +420 is mandatory, and the leading zero is not used because the Czech numbering plan does not employ a trunk prefix. For example, a caller from the United States would dial 011 420 58 XXX XXXX, while a caller from Germany would dial 00 420 58 XXX XXXX. Local calls within the same area code can be dialed using the full national number, as the Czech Republic uses closed dialing plan; there is no separate local dialing format.
Numbering Structure and Overlays
Czech fixed-line numbers are nine digits long, including the area code. The 58 NDC is followed by a seven-digit subscriber number, which is typically divided into a three-digit central office code and a four-digit line number. The Czech Telecommunication Office (ČTÚ) manages the allocation of these numbers to operators. Currently, there are no overlay codes in the Olomouc Region; the 58 code is the sole geographic code for the area. However, due to number portability, a number with the 58 prefix may be routed to a customer located anywhere in the country, so the prefix does not guarantee the caller's physical location.
Caller Guidance
For callers within the Czech Republic, dialing a 58 number is straightforward: simply enter the nine-digit number starting with 58. For international callers, it is essential to replace the international access code (00 or +) with the appropriate exit code for their country. It is also important to note that calls to geographic numbers are typically charged at standard fixed-line rates, which vary depending on the caller's operator and tariff. Emergency services (112) are free and can be reached from any phone, regardless of the area code.